10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

x  QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the Quarterly Period Ended June 30, 2013

or

o  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES

EXCHANGE ACT OF 1934

For the transition period from ____________  to  ____________

Commission File No. 000-16929

________________________

SOLIGENIX, INC.

(Exact name of registrant as specified in its charter)

DELAWARE		41-1505029
(State or other jurisdiction of incorporation or organization)		(I.R.S. Employer Identification Number)
29 EMMONS DRIVE, SUITE C-10 PRINCETON, NJ		08540
(Address of principal executive offices)		(Zip Code)
	(609) 538-8200
	(Registrant’s telephone number, including area code)

Indicate by check whether the registrant (1) filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

Yes x No o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web Site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).

Yes x No o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See definition of “accelerated filer” and “large accelerated filer” in Rule 112b-2 of the Exchange Act (Check one).

Large accelerated filer  o Accelerated filer o Non-accelerated filer o Smaller reporting company x

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).   Yes o No x

As of August 7, 2013, 19,030,487 shares of the registrant's common stock (par value, $.001 per share) were outstanding.

SOLIGENIX, INC.

Index

	Description	Page
Part I	FINANCIAL INFORMATION
Item 1	Consolidated Financial Statements	3
	Consolidated Balance Sheets as of June 30, 2013(unaudited) and December 31, 2012	3
	Consolidated Statements of Operations for the Three and Six Months Ended June 30, 2013 and 2012 (unaudited)	4
	Consolidated Statements of Changes in Shareholders’ Equity for the Six Months Ended June 30, 2013 (unaudited)	5
	Consolidated Statements of Cash Flows for the Six Months Ended June 30, 2013 and 2012 (unaudited)	6
	Notes to Consolidated Financial Statements	7
Item 2	Management’s Discussion and Analysis of Financial Condition and Results of Operations	18
Item 3	Quantitative and Qualitative Disclosures About Market Risk	34
Item 4	Controls and Procedures	34
Part II	OTHER INFORMATION
Item 1A	Risk Factors	35
Item 2	Unregistered Sales of Equity Securities and Use of Proceeds	35
Item 6	Exhibits	35
SIGNATURES		36

PART I - FINANCIAL INFORMATION

ITEM 1 - FINANCIAL STATEMENTS

Soligenix, Inc. and Subsidiaries

Consolidated Balance Sheets

	June 30, 2013			December 31, 2012
	(Unaudited)
Assets Current assets:
Cash and cash equivalents	$	8,127,742		$	3,356,380
Grants receivable		190,111			339,308
Prepaid expenses		194,971			140,693
Total current assets		8,512,824			3,836,381
Office furniture and equipment, net		16,139			12,995
Intangible assets, net		745,032			855,728
Total assets	$	9,273,995		$	4,705,104
Liabilities and shareholders’ equity
Current liabilities:
Accounts payable	$	1,364,841		$	1,124,503
Warrant liability		5,177,831			-
Accrued compensation		276,613			29,495
Total current liabilities		6,819,285			1,153,998
Commitments and contingencies
Shareholders’ equity:
Preferred stock;  350,000 shares authorized;           none issued or outstanding		-			-
Common stock, $.001  par value;  50,000,000 shares authorized; 19,030,487 shares and
11,168,905 shares issued and outstanding in 2013 and 2012, respectively		19,030			11,169
Additional paid-in capital		129,208,632			125,820,318
Accumulated deficit		(126,772,952	)		(122,280,381	)
Total shareholders’ equity		2,454,710			3,551,106
Total liabilities and shareholders’ equity	$	9,273,995		$	4,705,104

The accompanying notes are an integral part of these consolidated financial statements.

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Soligenix, Inc. and Subsidiaries

Consolidated Statements of Operations

For the Three and Six Months Ended June 30, 2013 and 2012

(Unaudited)

	Three Months Ended June 30,						Six Months Ended June 30,
	2013			2012			2013			2012
Revenues, principally from grants	$	632,278		$	762,851		$	1,532,632		$	1,410,269
Cost of revenues		(527,948	)		(616,330	)		(1,271,605	)		(1,172,901	)
Gross profit		104,330			146,521			261,027			237,368
Operating expenses:
Research and development		2,140,474			500,980			2,897,127			1,377,774
General and administrative		719,740			627,218			1,207,681			1,282,261
Total operating expenses		2,860,214			1,128,198			4,104,808			2,660,035
Loss from operations		(2,755,884	)		(981,677	)		(3,843,781	)		(2,422,667	)
Other income  (expense):
Change in fair value of warrant liability		(649,576	)		-			(649,576	)		-
Interest income, net		303			1,799			786			4,034
Net loss	$	(3,405,157	)	$	(979,878	)	$	(4,492,571	)	$	(2,418,633	)
Basic and diluted net loss per share	$	(0.28	)	$	(0.09	)	$	(0.38	)	$	(0.22	)
Basic and diluted weighted average common shares outstanding		12,259,394			11,124,359			11,720,066			11,121,814

The accompanying notes are an integral part of these consolidated financial statements.

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Soligenix, Inc. and Subsidiaries

Consolidated Statements of Changes in Shareholders’ Equity

For the Six Months Ended June 30, 2013

(Unaudited)

	Common Stock				Additional Paid-In			Accumulated
	Shares		Par Value		Capital			Deficit			Total
Balance, December 31, 2012		11,168,905	$	11,169	$	125,820,318		$	(122,280,381	)	$	3,551,106
Common stock issued in Unit offering, net of offering cost of  $895,933		6,773,995		6,774		6,209,988			-			6,216,762
Warrants issued in Unit offering		-		-		(4,528,255	)		-			(4,528,255	)
Issuance of common stock to collaboration partner		1,034,483		1,034		1,498,966			-			1,500,000
Issuance of common stock to vendors		28,104		28		35,860			-			35,888
Exercise of shares from options		25,000		25		7,475			-			7,500
Stock-based compensation expense		-		-		164,280			-			164,280
Net loss		-		-		-			(4,492,571	)		(4,492,571	)
Balance, June 30, 2013		19,030,487		19,030		129,208,632			(126,772,952	)		2,454,710

The accompanying notes are an integral part of these consolidated financial statements.

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Soligenix, Inc. and Subsidiaries

Consolidated Statements of Cash Flows

For the Six Months Ended June 30,

(Unaudited)

	2013			2012
Operating activities:
Net loss	$	(4,492,571	)	$	(2,418,633	)
Adjustments to reconcile net loss to net cash used in operating activities:
Amortization and depreciation		113,566			108,753
Common stock and warrants issued in exchange for services		1,535,888			3,000
Change in fair value of warrant liability		649,576			-
Restricted stock issued to employee		-			10,000
Stock-based compensation		164,280			235,002
Change in operating assets and liabilities:
Grants receivable		149,197			122,874
Other receivable		-			574,157
Prepaid expenses		(54,278	)		(54,216	)
Accounts payable		240,338			(83,987	)
Accrued compensation		247,118			(57,575	)
Total adjustments		3,045,685			858,008
Net cash used in operating activities		(1,446,886	)		(1,560,625	)
Investing activities:
Purchase of office equipment		(6,014	)		(4,755	)
Net cash used in investing activities		(6,014	)		(4,755	)
Financing activities:
Proceeds from sale of common stock		6,216,762			-
Proceeds from exercise of options		7,500			-
Net cash provided by financing activities		6,224,262			-
Net increase / (decrease) in cash and cash equivalents		4,771,362			(1,565,380	)
Cash and cash equivalents at beginning of period		3,356,380			5,996,668
Cash and cash equivalents at end of period	$	8,127,742		$	4,431,288

Supplemental disclosure of non cash investing and financing activities:

Warrant issued in Unit Offering $ 4,528,255 $ -

The accompanying notes are an integral part of these consolidated financial statements.

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Soligenix, Inc.

Notes to Consolidated Financial Statements

Note 1. Nature of Business

Basis of Presentation

Soligenix, Inc. (the “Company”, “we” or “us”) is a clinical stage biopharmaceutical company that was incorporated in 1987 and is focused on developing products to treat serious inflammatory diseases and biodefense countermeasures where there remains an unmet medical need. The Company maintains two active business segments: BioTherapeutics and Vaccines/BioDefense. Soligenix’s BioTherapeutics business segment is developing proprietary formulations of oral beclomethasone 17,21-dipropionate (“BDP”) for the prevention/ treatment of gastrointestinal (“GI”) disorders characterized by severe inflammation, including pediatric Crohn’s disease (SGX203), acute radiation enteritis (SGX201) and chronic Graft-versus-Host disease (orBec®), as well as developing our novel innate defense regulator (“IDR”) technology (SGX942) for the treatment of oral mucositis. Our Vaccines/BioDefense business segment includes active development programs for RiVax™, our ricin toxin vaccine, and VeloThrax™, our anthrax vaccine, and OrbeShield™, our gastrointestinal acute radiation syndrome (“GI ARS”) therapeutic. The advanced development of these vaccine programs is currently supported by the Company’s heat stabilization technology, known as ThermoVax™, under existing and on-going grant funding.

The Company generates revenues under four active grants primarily from the National Institutes of Health (“NIH”).

The Company is subject to risks common to companies in the biotechnology industry including, but not limited to, development of new technological innovations, dependence on key personnel, protections of proprietary technology, compliance with FDA regulations, litigation, and product liability. Results for the quarter ended June 30, 2013 are not necessarily indicative of results that may be expected for the full year.

Liquidity

As of June 30, 2013, the Company had cash and cash equivalents of $8,127,742 as compared to $3,356,380 as of December 31, 2012, representing an increase of $4,771,362 or 142%. As of June 30, 2013, the Company had working capital of $6,871,370, which excludes the non-cash warranty liability of $5,177,831, as compared to working capital of $2,682,283 as of December 31, 2012, representing an increase of $4,189,087, or 156%. The increase in cash and working capital was primarily the result of the receipt of net proceeds of $6,216,762 received from our registered public offering partially offset by cash used in operating activities during the six month period.   For the six months ended June 30, 2013, the Company’s cash used in operating activities was $1,446,886 as compared to $1,560,625 for the same period in 2012, representing a decrease of $113,739, or 7%.

Management’s business strategy can be outlined as follows:

● Initiate a Phase 2 clinical trial of SGX942 for the treatment of oral mucositis in head and neck cancer;

● Initiate a Phase 2/3 clinical trial of oral BDP, known as SGX203 for the treatment of pediatric Crohn’s disease;

● Evaluate the effectiveness of oral BDP in other therapeutic indications involving inflammatory conditions of the GI tract such as prevention of acute radiation enteritis, prevention of acute radiation syndrome, and treatment of chronic GI GVHD;

● Develop RiVax™ and VeloThrax™ in combination with our proprietary vaccine heat stabilization technology known as ThermoVax™ to develop new heat stable vaccines in biodefense and infectious diseases with the potential to collaborate and/or partner with other companies in these areas;

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● Continue to apply for and secure additional government funding for each of our BioTherapeutics and Vaccines/BioDefense programs through grants, contracts and/or procurements;

● Acquire or in-license new clinical-stage compounds for development; and

● Explore other business development and acquisition strategies, an example of which is the recently announced collaboration with Intrexon Corporation.

Based on the Company’s current rate of cash outflows, cash on hand, proceeds from grant programs and proceeds from the State of New Jersey Technology Business Tax Certificate Transfer Program, management believes that its current cash will be sufficient to meet the anticipated cash needs for working capital and capital expenditures into the first quarter of 2015.

The Company’s plans with respect to its liquidity management include, but are not limited to, the following:

● The Company has approximately $2.3 million in active grant funding still available to support its associated research programs through 2014. The Company plans to submit additional grant applications for further support of its programs with various funding agencies.

● The Company has continued to use equity instruments to provide a portion of the compensation due to vendors and collaboration partners and expects to continue to do so for the foreseeable future.

● The Company will pursue sale of Net Operating Losses (“NOLs”) in the State of New Jersey, pursuant to its Technology Business Tax Certificate Transfer Program. Based on the receipt of $521,458 in proceeds pursuant to NOL sales in 2012, the Company expects to participate in the program during 2013 and beyond; and

● The Company may seek additional capital in the private and/or public equity markets to continue its operations, respond to competitive pressures, develop new products and services, and to support new strategic partnerships. The Company evaluates equity financing opportunities on an ongoing basis and may execute them when appropriate. However, there can be no assurances that the Company can consummate such a transaction, or consummate a transaction at favorable pricing.

Note 2. Summary of Significant Accounting Policies

Principles of Consolidation

The consolidated financial statements include Soligenix, Inc., and its wholly and majority owned subsidiaries. All significant intercompany accounts and transactions have been eliminated as a result of consolidation.

Operating Segments

Operating segments are defined as components of an enterprise about which separate financial information is available that is evaluated on a regular basis by the chief operating decision maker, or decision making group, in deciding how to allocate resources to an individual segment and in assessing the performance of the segment. The Company divides its operations into two operating segments: BioTherapeutics and Vaccines/BioDefense.

Grants Receivable

Grants receivable consist of unbilled amounts due from various grants from the NIH for costs incurred under reimbursement contracts prior to the period end. The amounts were billed to the NIH in the month subsequent to period end and collected shortly thereafter. Accordingly, no allowance for doubtful amounts has been established. If amounts become uncollectible, they are charged to operations.

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Intangible Assets

One of the most significant estimates or judgments that the Company makes is whether to capitalize or expense patent and license costs. The Company makes this judgment based on whether the technology has alternative future uses, as defined in Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 730, Research and Development. Based on this consideration, the Company capitalizes payments made to legal firms that are engaged in filing and protecting rights to intellectual property and rights for its current products in both the domestic and international markets. The Company believes that patent rights are one of its most valuable assets. Patents and patent applications are a key component of intellectual property, especially in the early stage of product development, as their purchase and maintenance gives the Company access to key product development rights from Soligenix’s academic and industrial partners. These rights can also be sold or sub-licensed as part of its strategy to partner its products at each stage of development as the intangible assets have alternative future use. The legal costs incurred for these patents consist of work associated with filing new patents and perhaps extending the lives of the patents. The Company capitalizes such costs and amortizes intangibles over their expected useful life – generally a period of 11 to 16 years.

The Company did not incur any capitalizable patent related costs during the six months ended June 30, 2013 and 2012.

Impairment of Long-Lived Assets

Office furniture, equipment and intangible assets are evaluated and reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. The Company recognizes impairment of long-lived assets in the event the net book value of such assets exceeds the estimated future undiscounted cash flows attributable to such assets. If the sum of the expected undiscounted cash flows is less than the carrying value of the related asset or group of assets, a loss is recognized for the difference between the fair value and the carrying value of the related asset or group of assets. Such analyses necessarily involve significant judgment.

The Company did not record any impairment of long-lived assets for the six months ended June 30, 2013 or 2012.

Fair Value of Financial Instruments

FASB ASC 820 — Fair Value Measurements and Disclosures, defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. FASB ASC 820 requires disclosures about the fair value of

all financial instruments, whether or not recognized, for financial statement purposes. Disclosures about the fair value of financial instruments are based on pertinent information available to us on June 30, 2013. Accordingly, the estimates presented in these financial statements are not necessarily indicative of the amounts that could be realized on disposition of the financial instruments.

FASB ASC 820 specifies a hierarchy of valuation techniques based on whether the inputs to those valuation techniques are observable or unobservable. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect market assumptions. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurement) and the lowest priority to unobservable inputs (Level 3 measurement).

The three levels of the fair value hierarchy are as follows:

● Level 1 — Quoted prices in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date. Level 1 primarily consists of financial instruments whose value is based on quoted market prices such as exchange-traded instruments and listed equities.

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● Level 2 — Inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly. Level 2includes financial instruments that are valued using models or other valuation methodologies. These models consider various assumptions, including volatility factors, current market prices and contractual prices for the underlying financial instruments. Substantially all of these assumptions are observable in the marketplace, can be derived from observable data or are supported by observable levels at which transactions are executed in the marketplace.

● Level 3 — Unobservable inputs for the asset or liability. Financial instruments are considered Level 3 when their fair values are determined using pricing models, discounted cash flows or similar techniques and at least one significant model assumption or input is unobservable.

The carrying amounts reported in the consolidated balance sheet for cash and cash equivalents, accounts receivable, accounts payable and accrued expenses approximate their fair value based on the short-term maturity of these instruments.  The Company recognizes all derivative financial instruments as assets or liabilities in the financial statements and measures them at fair value with changes in fair value reflected as current period income or loss unless the derivatives qualify as hedges. As a result, certain warrants issued in connection with the offering were accounted for as derivatives.  See Note 4, Warrant Liabilities.

Revenue Recognition

Principally the Company’s revenues are generated from NIH grants and revenues from licensing activities and the achievement of licensing milestones (in prior periods). Recording of revenue is applied in accordance with FASB ASC 605, Revenue Recognition, ASC 605-25 and/or Accounting Standard Update, ASU, 2009-13, Revenue Recognition – Multiple Element Arrangements. The revenue from NIH grants is based upon subcontractor costs and internal costs incurred that are specifically covered by the grants, plus a facilities and administrative rate that provides funding for overhead expenses. These revenues are recognized when expenses have been incurred by subcontractors or when the Company incurs internal expenses that are related to the grant.

Research and Development Costs

Research and development costs are charged to expense when incurred in accordance with FASB ASC 730, Research and Development. Research and development includes costs such as clinical trial expenses, contracted research and license agreement fees with no alternative future use, supplies and materials, salaries stock based compensation, employee benefits, equipment depreciation and allocation of various corporate costs. Purchased in-process research and development expense represents the value assigned or paid for acquired research and development for which there is no alternative future use as of the date of acquisition.

Stock-Based Compensation

Stock options are issued with an exercise price equal to the market price on the date of issuance. Stock options issued to directors upon re-election vest quarterly for a period of one year (new director issuances are fully vested upon issuance). Stock options issued to employees vest 25% immediately as of the grant date, then 25% each subsequent year for a period of three years. Stock options vest over each three month period from the date of issuance to the end of the three year period. These options have a ten year life for as long as the individuals remain employees or directors. In general when an employee or director terminates their position the options will expire within three months, unless otherwise extended by the Board.

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Stock compensation expense for options, warrants and shares of common stock granted to non-employees has been determined in accordance with FASB ASC 718, Stock Compensation, and FASB ASC 505-50, Equity-Based Payments to Non-Employees, and represents the fair value of the consideration received, or the fair value of the equity instruments issued, whichever may be more reliably measured. For options that vest over future periods, the fair value of options granted to non-employee directors is amortized as the options vest.

The Company issued 26,000 and 100,000 options during the six months ending June 30, 2013 and 2012, respectively.

The fair value of options granted are estimated using the Black-Scholes option pricing model utilizing the following assumptions and are amortized ratably over the option vesting periods, which approximates the service period:

● a dividend yield of 0%;

● an expected life of 4 years;

● volatility of 167% and 160% for 2013 and 2012, respectively;

● forfeitures at rate of 12%; and

● risk-free interest rates of 1.09% and 0.51% in 2013 and 2012, respectively.

Income Taxes

Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. A valuation allowance is established when it is more likely than not that all or a portion of a deferred tax asset will not be realized. A review of all available positive and negative evidence is considered, including the Company’s current and past performance, the market environment in which the Company operates, the utilization of past tax credits, and the length of carryback and carryforward periods. Deferred tax assets and liabilities are measured utilizing tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. No current or deferred income taxes have been provided through June 30, 2013 due to the net operating losses incurred by the Company since its inception. The Company recognizes accrued interest and penalties associated with uncertain tax positions, if any, as part of income tax expense. There were no tax related interest and penalties recorded for 2013 and 2012. Additionally, the Company has not recorded an asset for unrecognized tax benefits or a liability for uncertain tax positions at June 30, 2013 or 2012. Tax years beginning in 2010 for federal purposes are generally subject to examination by the taxing authorities, although net operating losses from those years are subject to examinations and adjustments for at least three years following the year in which the tax attributes are utilized.

Earnings Per Share

Basic earnings per share (“EPS”) excludes dilution and is computed by dividing income (loss) available to common stockholders by the weighted-average number of common shares outstanding for the period, Diluted EPS reflects the potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock or resulted in the issuance of common stock that shared in the earnings of the entity. Since there is a significant number of options and warrants outstanding, fluctuations in the actual market price can have a variety of results for each period presented.

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	Three Months Ended June 30,
	2013								2012
	Net Loss			Shares		EPS			Net Loss			Shares		EPS
Basic & Diluted EPS	$	(3,405,157	)		12,259,394	$	(0.28	)	$	(979,878	)		11,124,359	$	(0.09	)

	Six Months Ended June 30,
	2013								2012
	Net Loss			Shares		EPS			Net Loss			Shares		EPS
Basic & Diluted EPS	$	(4,492,571	)		11,720,066	$	(0.38	)	$	(2,418,633	)		11,121,814	$	(0.22	)

Shares issuable upon the exercise of options and warrants outstanding at June 30, 2013 and 2012 were 1,447,474 and 1,596,898 shares issuable upon the exercise of outstanding stock options, and 7,923,838 and 2,576,341 shares issuable upon the exercise of outstanding warrants, respectively. The weighted average exercise price of the Company’s stock options and warrants outstanding at June 30, 2013 were $3.16 and $2.18 per share, respectively. The weighted average exercise price of the Company’s stock options and warrants outstanding at June 30, 2012 were $3.50 and $4.32 per share, respectively. No options or warrants were included in the 2013 and 2012 computations of diluted earnings per share because their effect would be anti-dilutive as a result of losses in each of those years.

Use of Estimates and Assumptions

The preparation of financial statements in conformity with accounting principles generally accepted in the U.S. requires management to make estimates and assumptions such as the fair value of warrants and stock options and the recovery of the useful life of intangibles that affect the reported amounts in the financial statements and accompanying notes. Actual results could differ from those estimates.

Note 3. Intangible Assets

The following is a summary of intangible assets which consists of licenses and patents:

	Weighted Average Remaining Amortization Period (years)		Cost		Accumulated Amortization		Net Book Value
June 30, 2013
Licenses		7.2	$	462,234	$	265,528	$	196,706
Patents		3.0		1,893,185		1,344,859		548,326
Total		3.8	$	2,355,419	$	1,610,387	$	745,032
December 31, 2012
Licenses		7.7	$	462,234	$	252,019	$	210,215
Patents		3.3		1,893,185		1,247672		645,513
Total		4.2	$	2,355,419	$	1,499,691	$	855,728

Amortization expense was $55,654 and $55,208 for the three months ended June 30, 2013 and 2012, respectively and $110,696 and $101,845 for the six months ended June 30, 2013 and 2012, respectively.

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Based on the balance of licenses and patents at June 30, 2013, the expected annual amortization expense for each of the succeeding five years is estimated to be as follows:

	Amortization Expense
2013	$	222,800
2014	$	222,800
2015	$	133,000
2016	$	61,800
2017	$	20,800

Note 4. Warrant Liabilities

Warrants issued in connection with the Company’s registered public offering contain provisions that protect holders from a decline in the issue price of its common stock (or “down-round” provisions) and contain net settlement provisions. The Company accounts for these warrants as liabilities instead of equity. Down-round provisions reduce the exercise or conversion price of a warrant if a company issues equity shares for a price that is lower than the exercise or conversion price of  the warrants. Net settlement provisions allow the holder of the warrant to surrender shares underlying the warrant equal to the exercise price as payment of its exercise price, instead of exercising the warrant by paying cash. The Company evaluates whether warrants to acquire its common stock contain provisions that protect holders from declines in the stock price or otherwise could result in modification of the exercise price and/or shares to be issued under the respective warrant agreements based on a variable that is not an input to the fair value of a “fixed-for-fixed” option.

The Company recognizes these warrants as liabilities at their fair value on the date of grant and remeasures them at fair value on each reporting date.

The Company recognized an initial warrant liability for the warrants issued in connection with the registered public offering completed in June 2013. The initial warrant liability recognized on the related warrants totaled $4,528,255, which was based on the June 25, 2013 closing price of a share of our common stock as reported on OTC Markets of $0.96. On June 30, 2013, the closing price of our common stock as reported on OTC Markets was $1.06. Due to the fluctuations in the market value of our common stock from June 25, 2013 through June 30, 2013, we recognized a non-cash charge of $649,576 for the change in the fair value of the warrant liability.

The assumptions used in connection with the valuation of warrants issued were as follows:

	June 30, 2013			Initial Measurement June 25, 2013
Number of shares underlying the warrants		5,080,500			5,080,500
Exercise price	$	1.65		$	1.65
Volatility		140	%		140	%
Risk-free interest rate		1.49	%		1.49	%
Expected dividend yield		0			0
Expected warrant life (years)		5			5
Stock Price	$	1.06		$	0.96

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Recurring Level 3 Activity and Reconciliation

The table below provides a reconciliation of the beginning and ending balances for the liability measured at fair value using significant unobservable inputs (Level 3). The table reflects losses for the six months ended June 30, 2013 for the financial liability categorized as Level 3 as of June 30, 2013.

Fair Value Measurements Using Significant Unobservable Inputs (Level 3):

	March 31, 2013		Initial Measurement		Increase in Fair Value		June 30, 2013
2013 Warrant		-	$	4,528,255	$	649,576	$	5,177,831

Note 5. Income Taxes

The Company had NOLs at December 31, 2012 of approximately $79,454,000 for federal tax purposes and approximately $9,478,000 of New Jersey NOL carry forwards remaining after the sale of unused NOL carry forwards, portions of which are currently expiring each year until 2031. In addition, the Company had $2,860,000 of various tax credits that started expiring in December 2012 and will continue to expire through December 2030. The Company may be able to utilize its NOLs to reduce future federal and state income tax liabilities. However, these NOLs are subject to various limitations under Internal Revenue Code (“IRC”) Section 382. IRC Section 382 limits the use of NOLs to the extent there has been an ownership change of more than 50 percentage points. In addition, the NOL carryforwards are subject to examination by the taxing authority and could be adjusted or disallowed due to such exams. Although the Company has not undergone an IRC Section 382 analysis, it is possible that the utilization of the NOLs, could be substantially limited.

The Company and one or more of its subsidiaries files income tax returns in the U.S. Federal jurisdiction, and various state and local jurisdictions. The Company is no longer subject to Federal income tax assessment for years before 2010 for federal and 2009 for New Jersey income tax assessment. However, since the Company has incurred net operating losses in every tax year since inception, all its income tax returns are subject to examination by the Internal Revenue Service for at least three years following the year in which the tax attributes are utilized.

The Company has no tax provision for the three and six month periods ended June 30, 2013 and 2012 due to losses incurred and full valuation allowances recorded against net deferred tax assets.

Note 6. Shareholders’ Equity

Preferred Stock

The Company has 350,000 shares of preferred stock authorized, none of which are issued or outstanding.

Common Stock

During the six months ended June 30, 2013, the Company issued the following shares of common stock:

● On June 25, 2013, the Company completed a public unit offering consisting of one share of common stock and an additional warrant of 0.75 share of common stock.  The Company issued 6,773,995 shares of common stock  which included 5,080,500 five-year warrants at an exercise price of $1.65;

● 1,034,483 shares of common stock issued to Intrexon Corporation in connection with an exclusive channel collaboration;

● 25,000 shares of common stock issued upon the exercise of vested stock options;

● 28,104 shares of common stock issued to vendors as partial consideration for services performed.

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Note 7. Commitments and Contingencies

The Company has commitments of approximately $362,500 as of June 30, 2013 for several licensing agreements with consultants and universities, which upon clinical or commercialization success may require the payment of milestones and/or royalties if and when achieved. However, there can be no assurance that clinical or commercialization success will occur.

On February 7, 2012, the Company entered into a lease agreement through March 31, 2015 for existing office space. The rent for the first 12 months is approximately $8,000 per month, or approximately $18.25 per square foot. This rent increases to approximately $8,310 per month, or approximately $19.00 per square foot, for the remaining 24 months.

In February 2007, the Company’s Board of Directors authorized the issuance of the following number of shares to each of Dr. Schaber and Dr. Brey immediately prior to the completion of a transaction, or series or a combination of related transactions negotiated by its Board of Directors whereby, directly or indirectly, a majority of its capital stock or a majority of its assets are transferred from the Company and/or its stockholders to a third party: 50,000 common shares to Dr. Schaber; and 10,000 common shares to Dr. Brey. The amended agreement with Dr. Schaber includes its obligation to issue such shares if such event occurs.

As a result of the above agreements, the Company has future contractual obligations over the next five years as follows:

Year	Research and Development		Property and Other Leases		Total
2013	$	37,500	$	53,000	$	90,500
2014		100,000		101,100		201,100
2015		75,000		24,900		99,900
2016		75,000				75,000
2017		75,000		-		75,000
Total	$	362,500	$	179,000	$	541,500

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Note 8. Operating Segments

The Company maintains two active operating segments: BioTherapeutics and Vaccines/BioDefense. Each segment includes an element of overhead costs specifically associated with its operations, with its corporate shared services group responsible for support functions generic to both operating segments.

	Three Months Ended June 30,
	2013			2012
Revenues, Principally from Grants
Vaccines/BioDefense	$	588,496		$	710,237
BioTherapeutics		43,782			52,614
Total	$	632,278		$	762,851
Loss from Operations
Vaccines/BioDefense	$	(1,532,472	)	$	(2,144	)
BioTherapeutics		(530,640	)		(481,817	)
Corporate		(692,772	)		(497,716	)
Total	$	(2,755,884	)	$	(981,677	)
Amortization and Depreciation Expense
Vaccines/BioDefense	$	27,968		$	24,954
BioTherapeutics		28,675			25,892
Corporate		424			562
Total	$	57,067		$	51,408
Other Income /(Expense), Net
Corporate	$	(649,273	)	$	1,799
Stock-Based Compensation
Vaccines/BioDefense	$	11,128		$	2,130
BioTherapeutics		25,905			56,194
Corporate		47,755			59,064
Total	$	84,788		$	117,388

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	Six Months Ended June 30,
	2013			2012
Revenues, Principally from Grants
Vaccines/BioDefense	$	1,418,345		$	1,307,842
BioTherapeutics		114,287			102,427
Total	$	1,532,632		$	1,410,269
Income (Loss) from Operations
Vaccines/BioDefense	$	(1,563,467	)	$	(130,509	)
BioTherapeutics		(988,266	)		(1,207,859	)
Corporate		(1,292,048	)		(1,084,299	)
Total	$	(3,843,781	)	$	(2,422,667	)
Amortization and Depreciation Expense
Vaccines/BioDefense	$	55,635		$	52,951
BioTherapeutics		57,070			54,733
Corporate		861			1,069
Total	$	113,566		$	108,753
Other Income /(Expense), Net
Corporate	$	(648,790	)	$	4,034
Stock-Based Compensation
Vaccines/BioDefense	$	22,249		$	4,260
BioTherapeutics		46,941			112,614
Corporate		95,090			118,128
Total	$	164,280		$	235,002

	As of June 30,  2013		As of December 31, 2012
Identifiable Assets
Vaccines/BioDefense	$	470,414	$	628,494
BioTherapeutics		466,498		566,111
Corporate		8,337,083		3,510,499
Total	$	9,273,995	$	4,705,104

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ITEM 2 – MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The following discussion and analysis provides information to explain our results of operations and financial condition. You should also read our unaudited consolidated interim financial statements and their notes included in this Form 10-Q, and our audited consolidated financial statements and their notes, and Risk Factors and other information included in our Annual Report on Form 10-K for the year ended December 31, 2012. This report contains forward-looking statements. Forward-looking statements within this Form 10-Q are identified by words such as “believes,” “anticipates,” “expects,” “intends,” “may,” “will” “plans” and other similar expressions, however, these words are not the exclusive means of identifying such statements. In addition, any statements that refer to expectations projections or other characterizations of future events or circumstances are forward-looking statements. These forward-looking statements are subject to significant risks, uncertainties and other factors, which may cause actual results to differ materially from those expressed in, or implied by, these forward-looking statements. Except as expressly required by the federal securities laws, we undertake no obligation to publicly update or revise any forward-looking statements to reflect events, circumstances or developments occurring subsequent to the filing of this Form 10-Q with the U.S. Securities and Exchange Commission (“SEC”) or for any other reason and you should not place undue reliance on these forward-looking statements. You should carefully review and consider the various disclosures the Company makes in this report and our other reports filed with the “SEC” that attempt to advise interested parties of the risks, uncertainties and other factors that may affect our business.

Overview:

Business Overview

We are a clinical stage biopharmaceutical company that is focused on developing products to treat serious inflammatory diseases and biodefense countermeasures where there remains an unmet medical need. We maintain two active business segments: BioTherapeutics and Vaccines/BioDefense.

Our BioTherapeutics business segment is developing proprietary formulations of oral beclomethasone 17,21-dipropionate (“BDP”) for the prevention/treatment of gastrointestinal (“GI”) disorders characterized by severe inflammation, including pediatric Crohn’s disease (SGX203), acute radiation enteritis, (SGX201) and chronic Graft-versus-Host disease (orBec®), as well as developing our novel innate defense regulator (“IDR”) technology (SGX942) for the treatment of oral mucositis.

Our Vaccines/BioDefense business segment includes active development programs for RiVax™, our ricin toxin vaccine, VeloThraxTM, our anthrax vaccine, and OrbeShieldTM, our gastrointestinal acute radiation syndrome (“GI ARS”) therapeutic. The advanced development of our vaccine programs is currently supported by our heat stabilization technology, known as ThermoVaxTM, under existing and on-going government grant funding. We also recently announced a global and exclusive channel collaboration with Intrexon Corporation (“Intrexon”) through which we intend to develop and commercialize human monoclonal antibody therapies to treat melioidosis.

An outline for our business strategy follows:

● Initiate a Phase 2 clinical trial of SGX942 for the treatment of oral mucositis in head and neck cancer;

● Initiate a Phase 2/3 clinical trial of oral BDP, known as SGX203 for the treatment of pediatric Crohn’s disease;

● Evaluate the effectiveness of oral BDP in other therapeutic indications involving inflammatory conditions of the GI tract such as prevention of acute radiation enteritis, prevention of acute radiation syndrome, and treatment of chronic graft-versus-host disease (“GI GVHD”);

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● Develop RiVax™ and VeloThrax™ in combination with our proprietary vaccine heat stabilization technology, known as ThermoVax™, to develop new heat stable vaccines in biodefense and infectious diseases with the potential to collaborate and/or partner with other companies in these areas;

● Continue to apply for and secure additional government funding for each of our BioTherapeutics and BioDefense programs through grants, contracts and/or procurements; and

● Explore other business development and merger/acquisition strategies, an example of which is our recently announced collaboration with Intrexon.

We were incorporated in Delaware in 1987. Our principal executive offices are located at 29 Emmons Drive, Suite C-10, Princeton, New Jersey 08540 and our telephone number is (609) 538-8200.

Our Products in Development

The following tables summarize the products that we are currently developing:

BioTherapeutic Products

Soligenix Product	Therapeutic Indication	Stage of Development
SGX942	Oral Mucositis in Head and Neck Cancer	IND clearance and Phase 2 trial planned for the second half of 2013, with data expected in the second half of 2014
SGX203	Pediatric Crohn’s disease	Phase 1/2 clinical trial completed June 2013, data pharmacokinetic (PK)/pharmacodynamic (PD) profile and safety confirmed; Phase 2/3 clinical trial planned for the second half of 2013, with data expected in the second half of 2014
SGX201	Acute Radiation Enteritis	Phase 1/2 clinical trial complete; safety and preliminary efficacy demonstrated Phase 2 trial planned for the first half of 2014, with data expected in the first half of 2015
orBec®	Treatment of Chronic GI GVHD	Phase 2 trial planned for the second half of 2013, with data expected in the second half of 2014

Vaccine Thermostability Platform

Soligenix Product	Indication	Stage of Development
ThermoVax™	Thermostability of aluminum adjuvanted vaccines	Pre-clinical

Vaccines/BioDefense Products

Soligenix Product	Indication	Stage of Development
RiVaxTM	Vaccine against Ricin Toxin Poisoning	Phase 1B trial enrollment complete; safety and neutralizing antibodies for protection demonstrated Phase 2 trial planned for the first half of 2014
VeloThrax™	Vaccine against Anthrax Poisoning	Pre-clinical Phase 1 clinical trial planned for second half of 2014
OrbeShield™	Therapeutic against GI ARS	Follow-on pre-clinical study initiated; Initial pre-clinical study complete; successful protection observed in canine
SGX943/SGX101	Melioidosis	Pre-clinical

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BioTherapeutics Overview

SGX94

In December 2012, we acquired a novel drug technology, we refer to as SGX94, representing what we believe is a novel approach to modulation of the innate immune system. SGX94 is an IDR that regulates the innate immune system to simultaneously reduce inflammation, eliminate infection and enhance tissue healing. As part of the acquisition, we acquired all rights, including composition of matter patents, preclinical and Phase 1 clinical study datasets for SGX94. We also assumed a license agreement with the University of British Columbia (“UBC”) to advance the research and development of the SGX94 technology. The license agreement with UBC provides us with exclusive worldwide rights to manufacture, distribute, market sell and/or license or sublicense products derived or developed from this technology.

SGX94 is the research name for the active ingredient in SGX942, which is the research name for the finished drug product being studied in oral mucositis. It is a new class of short, synthetic peptides known as IDRs that have a novel mechanism of action in that it is simultaneously anti-inflammatory and anti-infective. IDRs have no direct antibiotic activity but modulate host responses, increasing survival after infections with a broad range of bacterial Gram-negative and Gram-positive pathogens including both antibiotic sensitive and resistant strains, as well as accelerating resolution of tissue damage following exposure to a variety of agents including bacterial pathogens, trauma and chemo- or radiation-therapy. IDRs provide a novel approach to the control of infection and tissue damage via highly selective binding to an intracellular adaptor protein, sequestosome-1, also known as p62, which has a pivotal function in signal transduction during activation and control of the innate defense system. Preclinical data indicate that IDRs are active in models of a wide range of therapeutic indications including life-threatening bacterial infections as well as the severe side-effects of chemo- and radiation-therapy.

We have a strong worldwide IP position on SGX94 and related analogs including composition of matter. SGX94 was developed pursuant to discoveries made by Professors B. Brett Finlay and Robert Hancock of UBC and approximately $40 million has been invested towards its development to date, inclusive of government grants.

SGX94 has demonstrated efficacy in numerous animal disease models including mucositis, colitis, skin infection and other bacterial infections and has been evaluated in a double-blind, placebo-controlled Phase 1 clinical trial in 84 healthy volunteers with both single ascending dose and multiple ascending dose components. SGX94 showed a strong safety profile when administered by IV over 7 days and was consistent with safety results seen in pre-clinical studies. SGX94 is the subject of an open Investigational New Drug (“IND”) application which has been cleared by the FDA. Market opportunities include, but are not limited to, mucositis, acute bacterial skin and skin structure infections, acinetobacter, melioidosis, acute radiation syndrome and as a vaccine adjuvant, with potential opportunities for non-dilutive funding to support the development.

We believe the potential worldwide market for SGX942 is in excess of $500 million for all applications, including oral mucositis.

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SGX942 – for Treating Oral Mucositis in Head and Neck Cancer

SGX942 is poised to start a Phase 2 clinical study in oral mucositis in head and neck cancer patients. Oral mucositis in this patient population is an area of unmet medical need where there are currently no approved drug therapies. Accordingly, we received Fast Track designation for the treatment of oral mucositis as a result of radiation and/or chemotherapy treatment in head and neck cancer patients from the FDA in the first half of 2013.  Fast Track is a designation that the FDA reserves for a drug intended to treat a serious or life-threatening condition and one that demonstrates the potential to address an unmet medical need for the condition. Fast Track designation is designed to facilitate the development and expedite the review of new drugs. For instance, should events warrant, we will be eligible to submit a New Drug Application (“NDA”) for SGX942 on a rolling basis, permitting the FDA to review sections of the NDA prior to receiving the complete submission. Additionally, NDAs for Fast Track development programs ordinarily will be eligible for priority review, which implies an abbreviated review time of six months.

About Oral Mucositis

Mucositis is the clinical term for damage done to the mucosa by anticancer therapies. It can occur in any mucosal region, but is most commonly associated with the mouth, followed by the small intestine. We estimate, based upon our review of historic studies and reports, and an interpolation of data on the incidence of mucositis, that mucositis affects approximately 500,000 people in the U.S. per year and occurs in 40% of patients receiving chemotherapy. Mucositis can be severely debilitating and can lead to infection, sepsis, the need for parenteral nutrition and narcotic analgesia. The gastro-intestinal damage causes severe diarrhea. These symptoms can limit the doses and duration of cancer treatment, leading to sub-optimal treatment outcomes.

The mechanisms of mucositis have been extensively studied and have been recently linked to the interaction of chemotherapy and/or radiation therapy with the innate defense system. Bacterial infection of the ulcerative lesions is now regarded as a secondary consequence of dysregulated local inflammation triggered by therapy-induced cell death, rather than as the primary cause of the lesions.

We estimate, based upon our review of historic studies and reports, and an interpolation of data on the incidence of oral mucositis, that oral mucositis is a subpopulation of approximately 90,000 patients in the U.S., with a comparable number in Europe. Oral mucositis almost always occurs in patients with head and neck cancer treated with radiation therapy (>80% incidence of severe mucositis) and is common (40-100% incidence) in patients undergoing high dose chemotherapy and hematopoietic cell transplantation, where the incidence and severity of oral mucositis depends greatly on the nature of the conditioning regimen used for myeloablation.

Oral BDP

Oral BDP (beclomethasone 17,21-dipropionate) represents a first-of-its-kind oral, locally acting therapy tailored to treat gastrointestinal inflammation. BDP has been marketed in the U.S. and worldwide since the early 1970s as the active pharmaceutical ingredient in a nasal spray and in a metered-dose inhaler for the treatment of patients with allergic rhinitis and asthma. Oral BDP is specifically formulated for oral administration as a single product consisting of two tablets. One tablet is intended to release BDP in the upper sections of the GI tract and the other tablet is intended to release BDP in the lower sections of the GI tract.

Based on its pharmacological characteristics, oral BDP may have utility in treating other conditions of the gastrointestinal tract having an inflammatory component. We have an issued U.S. patent 8,263,582 claiming the use of oral BDP as a method of treating inflammatory disorders of the gastrointestinal tract, including Crohn’s disease, and an issued U.S. patent 6,096,731 claiming the use of oral BDP as a method for preventing and treating the tissue damage that is associated with both GI GVHD following hematopoietic cell transplantation, as well as GVHD which also occurs following organ allograft transplantation. We also have European Patent EP 1392321 claiming the use of topically active corticosteroids in orally administered dosage forms that act concurrently to treat inflammation in the upper and lower gastrointestinal tract. We are planning to pursue development programs in the treatment of pediatric Crohn’s disease, acute radiation enteritis, chronic GI GVHD, and GI ARS pending further grant funding. We are also exploring the possibility of testing oral BDP for local inflammation associated with Ulcerative Colitis, among other indications.

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We believe the potential worldwide market for oral BDP is in excess of $500 million for all GI applications, namely, pediatric Crohn’s disease, radiation enteritis, GI ARS, and chronic GI GVHD.

In addition to issued patents and pending worldwide patent applications held by or exclusively licensed to us, oral BDP would benefit from orphan drug designations in the U.S. and in Europe. Orphan drug designations provide for 7 and 10 years of market exclusivity upon approval in the U.S. and Europe, respectively.

SGX203 –for Treating Pediatric Crohn’s Disease

SGX203 is a two tablet delivery system of BDP specifically designed for oral use that allows for administration of immediate and delayed release BDP throughout the small bowel and the colon. The FDA has awarded SGX203 Orphan Drug designation as well as Fast Track designation for the treatment of pediatric Crohn's disease.

About Pediatric Crohn's Disease

Crohn's disease is an ongoing disorder that causes inflammation of the GI tract. Crohn's disease can affect any area of the GI tract, from the mouth to the anus, but it most commonly affects the lower part of the small intestine, called the ileum. The swelling caused by the disease extends deep into the lining of the affected organ. The swelling can induce pain and can make the intestines empty frequently, resulting in diarrhea. Because the symptoms of Crohn's disease are similar to other intestinal disorders, such as irritable bowel syndrome and ulcerative colitis, it can be difficult to diagnose. People of Ashkenazi Jewish heritage have an increased risk of developing Crohn's disease.

Crohn's disease can appear at any age, but it is most often diagnosed in adults in their 20s and 30s. However, approximately 30% of people with Crohn's disease develop symptoms before 20 years of age. We estimate, based upon our review of historic published studies and reports and an interpolation of data on the incidence of Pediatric Crohn’s disease,, that Pediatric Crohn's disease is a subpopulation of approximately 80,000 patients in the U.S. with a comparable number in Europe. Crohn’s disease tends to be both severe and extensive in the pediatric population and a relatively high proportion (~40%) of pediatric Crohn’s patients have involvement of their upper gastrointestinal tract.

Crohn's disease presents special challenges for children and teens. In addition to bothersome and often painful symptoms, the disease can stunt growth, delay puberty, and weaken bones. Crohn's disease symptoms may sometimes prevent a child from participating in enjoyable activities. The emotional and psychological issues of living with a chronic disease can be especially difficult for young people.

SGX201 –  for Preventing Acute Radiation Enteritis

SGX201 is a delayed-release formulation of BDP specifically designed for oral use. We completed a Phase 1/2 clinical trial testing SGX201 in prevention of acute radiation enteritis. Patients with rectal cancer scheduled to undergo concurrent radiation and chemotherapy prior to surgery were randomized to one of four dose groups. The objectives of the study were to evaluate the safety and maximal tolerated dose of escalating doses of SGX201, as well as the preliminary efficacy of SGX201 for prevention of signs and symptoms of acute radiation enteritis. The study demonstrated that oral administration of SGX201 was safe and well tolerated across all four dose groups. There was also evidence of a potential dose response with respect to diarrhea, nausea and vomiting and the assessment of enteritis according to National Cancer Institute Common Terminology Criteria for Adverse Events for selected gastrointestinal events. In addition, the incidence of diarrhea was lower than that seen in recent published historical control data in this patient population. This program was supported in part by a $500,000 two-year Small Business Innovation and Research (“SBIR”) grant awarded by the National Institutes of Health (“NIH”). We are currently working with our Radiation Enteritis medical advisory board to determine potential next steps forward with the clinical development program.

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We have received Fast Track designation from the FDA for SGX201 for acute radiation enteritis.

About Acute Radiation Enteritis

External radiation therapy is used to treat most types of cancer, including cancer of the bladder, uterine, cervix, rectum, prostate, and vagina. During delivery of treatment, some level of radiation will also be delivered to healthy tissue, including the bowel, leading to acute and chronic toxicities. The large and small bowels are very sensitive to radiation and the larger the dose of radiation the greater the damage to normal bowel tissue. Radiation enteritis is a condition in which the lining of the bowel becomes swollen and inflamed during or after radiation therapy to the abdomen, pelvis, or rectum. Most tumors in the abdomen and pelvis need large doses, and almost all patients receiving radiation to the abdomen, pelvis, or rectum will show signs of acute enteritis.

Patients with acute enteritis may have nausea, vomiting, abdominal pain and bleeding, among other symptoms. Some patients may develop dehydration and require hospitalization. With diarrhea, the gastrointestinal tract does not function normally, and nutrients such as fat, lactose, bile salts, and vitamin B 12 are not well absorbed.

Symptoms will usually resolve within 2-6 weeks after therapy has ceased. Radiation enteritis is often not a self-limited illness, as over 80% of patients who receive abdominal radiation therapy complain of a persistent change in bowel habits. Moreover, acute radiation injury increases the risk of development of chronic radiation enteropathy, and overall 5% to 15% of the patients who receive abdominal or pelvic irradiation will develop chronic radiation enteritis.

We estimate, based upon our review of historic published studies and reports, and an interpolation of data on the treatment courses and incidence of cancers occurring in the abdominal and pelvic regions, there to be over 100,000 patients annually in the U.S., with a comparable number in Europe, who receive abdominal or pelvic external beam radiation treatment for cancer, and these patients are at risk of developing acute and chronic radiation enteritis.

orBec® –for Treating Chronic GI GVHD

orBec® is a two tablet delivery system of BDP specifically designed for oral use that allows for delivery of immediate and delayed release BDP to treat the gastrointestinal manifestation of chronic GVHD, the organ system where GVHD is most frequently encountered and highly problematic. orBec® is intended to reduce the need for systemic immunosuppressive drugs such as prednisone to treat chronic GI GVHD. The active ingredient in orBec® is BDP, a highly potent, topically active corticosteroid that has a local effect on inflamed tissue. BDP has been marketed in the U.S. and worldwide since the early 1970s as the active pharmaceutical ingredient in a nasal spray and in a metered-dose inhaler for the treatment of patients with allergic rhinitis and asthma. orBec® has been awarded orphan drug designations in the U.S. and in Europe for the treatment of GI GVHD. In September 2012, we received a $300,000 two-year SBIR grant awarded by the NIH to support a Phase 2 study for the treatment of chronic GI GVHD.

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About Chronic GVHD

GVHD is a major complication of allogeneic hematopoietic cell transplantation. GVHD is an inflammatory disease initiated by T cells in the donor graft that recognize histocompatibility and other tissue antigens of the host, and is mediated by a variety of effector cells and inflammatory cytokines. GVHD presents in both acute and chronic forms. The symptoms of chronic GVHD typically present at between 100 days and three years post-transplant.

Chronic GVHD has features resembling autoimmune and other immunologic disorders such as scleroderma, Sjögren syndrome, primary biliary cirrhosis, wasting syndrome, bronchiolitis obliterans, immune cytopenias and chronic immunodeficiency. The manifestations of chronic GVHD may be restricted to a single organ or tissue or may be widespread. Chronic GVHD can lead to debilitating consequences, e.g., joint contractures, loss of sight, end-stage lung disease, or mortality resulting from profound chronic immune suppression leading to recurrent or life-threatening infections.

Treatment of chronic GVHD is a challenge because it can be refractory to frontline immunosuppression.  High-dose systemic corticosteroids are used with some success but carry significant toxicity. The risks of prolonged immunosuppression include local and disseminated infections; Epstein-Barr virus associated lymphoproliferative disease, hypothalamic-pituitary-adrenal (“HPA”) axis suppression, myopathy, glucose intolerance, neuropsychiatric disease and bone demineralization.

We estimate, based upon our review of historic published studies and reports and an interpolation of data on the incidence of chronic GVHD, there to be 6,000 patients annually in the U.S., with a comparable number in Europe that suffer from chronic GVHD.

Vaccines/BioDefense Overview

ThermoVax™  – Thermostability Technology

Our thermostability technology, ThermoVax™, is a novel method of rendering aluminum salt, (known colloquially as Alum), adjuvanted vaccines stable at elevated temperatures. Alum is the most widely employed adjuvant technology in the vaccine industry. The value of ThermoVax™ lies in its potential ability to eliminate the need for cold-chain production, transportation, and storage for Alum adjuvanted vaccines. This would relieve companies of the high costs of producing and maintaining vaccines under refrigerated conditions. Based on historical reports from the World Health Organization and other scientific reports, a meaningful proportion of vaccine doses globally are wasted due to excursions from required cold chain temperature ranges. This is due to the fact that most Alum adjuvanted vaccines need to be maintained at between 2 and 8 degrees Celsius  (“C”) and even brief excursions from this temperature range (especially below freezing) usually necessitates the destruction of the product or the initiation of costly stability programs specific for the vaccine lots in question. The savings realized from the elimination of cold chain costs and related product losses would in turn significantly increase the profitability of vaccine products. Elimination of the cold chain would also further facilitate the use of these vaccines in the lesser developed parts of the world. ThermoVax™ has the potential to facilitate easier storage and distribution of strategic national stockpile vaccines in emergency settings.

ThermoVax™ development is being supported pursuant to our $9.4 million National Institute of Allergy and Infectious Diseases (“NIAID”) grant enabling development of thermo-stable ricin (RiVax™) and anthrax (VeloThrax™) vaccines. Proof-of-concept preclinical studies with ThermoVax™ indicate that it is able to produce stable vaccine formulations using adjuvants, protein immunogens, and other components that ordinarily would not withstand long temperature variations exceeding customary refrigerated storage conditions. These studies were conducted with our aluminum-adjuvanted ricin toxin vaccine, RiVax™, made under precise lyophilization conditions using excipients that aid in maintaining native protein structure of the ricin A chain, the immunogenic compound of the vaccine. When RiVax™ was kept at 40 degrees C for six months, all of the animals vaccinated with the lyophilized RiVax™ vaccine developed potent and high titer neutralizing antibodies. Confirmatory results have extended the stability to six months when the vaccine is kept at 40 degrees C. In contrast, animals that were vaccinated with the liquid RiVax™ vaccine kept at 40 degrees C did not develop neutralizing antibodies and were not protected against ricin exposure. The ricin A chain is extremely sensitive to temperature and rapidly loses the ability to induce neutralizing antibodies when exposed to temperatures higher than 8 degrees C.

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Near term progress with ThermoVax™ will allow us to seek out potential partnerships with companies marketing FDA/ex-U.S. health authority approved Alum adjuvanted vaccines that are interested in eliminating the need for cold chain for their products. ThermoVax™ will further enable Soligenix to expand its vaccine development expertise beyond biodefense into the infectious disease space and also has the potential to allow for the development of multivalent vaccines (e.g., combination ricin-anthrax vaccine).

ThermoVax™ is the subject of U.S. patent application number 8,444,991 issued  on May 22, 2013 titled “Method of Preparing an Immunologically-Active Adjuvant-Bound Dried Vaccine Composition” and also U.S. patent application number 13/474,661 filed May 17, 2012 titled “Thermostable Vaccine Compositions and Methods of Preparing Same.” These patents and their corresponding foreign filings are pending and licensed to Soligenix by the University of Colorado (“UC”) and they address the use of adjuvants in conjunction with vaccines that are formulated to resist thermal inactivation. The license agreement covers thermostable vaccines for biodefense as well as other potential vaccine indications.

RiVax™ – Ricin Toxin Vaccine

RiVax™ is our proprietary vaccine developed to protect against exposure to ricin toxin, and is the first ricin vaccine.With RiVax™, we are a world leader in ricin toxin vaccine research.The immunogen in RiVax™ induces a protective immune response in animal models of ricin exposure and functionally active antibodies in humans. The immunogen consists of a genetically inactivated subunit ricin A chain that is enzymatically inactive and lacks residual toxicity of the holotoxin. Two Phase 1 human clinical trials have been completed. The development of RiVax™ has been sponsored through a series of overlapping challenge grants, UC1, and cooperative grants, U01, from the NIH, granted to Soligenix and to the University of Texas Southwestern Medical Center (“UTSW”) where the vaccine originated. The second clinical trial was supported by a grant from the FDA's Office of Orphan Products to UTSW. Soligenix and UTSW have collectively received approximately $25 million in grant funding from the NIH for RiVax™. Results of the first Phase 1 human trial of RiVax™ established that the immunogen was safe and induced antibodies anticipated to protect humans from ricin exposure. The antibodies generated from vaccination, concentrated and purified, were capable of conferring immunity passively to recipient animals, indicating that the vaccine was capable of inducing functionally active antibodies in humans. The outcome of this study was published in the Proceedings of the National Academy of Sciences (Vitetta et al., 2006, A Pilot Clinical Trial of a Recombinant Ricin Vaccine in Normal Humans, PNAS, 103:2268-2273). The second trial, sponsored by UTSW, evaluated a more potent formulation of RiVax™ that contained an aluminum adjuvant (Alum), was completed in September 2012. The results of the Phase 1B study indicated that Alum adjuvanted RiVax™ was safe and well tolerated, and induced greater ricin neutralizing antibody levels in humans than adjuvant-free RiVax™. The outcomes of this second study were published in the Clinical and Vaccine Immunology (Vitetta et al., 2012, Recombinant Ricin Vaccine Phase 1B Clinical Trial, Clin. Vaccine Immunol. 10:1697-9). We have adapted the original manufacturing process for the immunogen contained in RiVax™ for large scale manufacturing and are further establishing correlates of the human immune response in non-human primates.

RiVax™ is the subject of three issued U.S. patent numbers 6,566,500, 6,960,652, and 7,829,668, all titled "Compositions and methods for modifying toxic effects of proteinaceous compounds." This patent family includes composition of matter claims for the modified ricin toxin A chain which is the immunogen contained in RiVax™, and issued in 2003, 2005 and 2010 respectively. The initial filing date of these patents is March 2000 and they are expected to expire in March 2020. The issued patents contain claims that describe alteration of sequences within the ricin A chain that affect vascular leak, one of the deadly toxicities caused by ricin toxin. Another U.S. patent number 7,175,848 titled “Ricin A chain mutants lacking enzymatic activity as vaccines to protect against aerosolized ricin,” was filed in October of 2000 and is expected to expire in October 2020. RiVax™has also been granted Orphan Drug designation by the FDA for the prevention of ricin intoxication.

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Assuming development efforts are successful for RiVax™, we believe potential government procurement contract(s) could reach $200 million.

About Ricin Toxin

Ricin toxin can be cheaply and easily produced, is stable over long periods of time, is toxic by several routes of exposure and thus has the potential to be used as a biological weapon against military and/or civilian targets. As a bioterrorism agent, ricin could be disseminated as an aerosol, by injection, or as a food supply contaminant. The potential use of ricin toxin as a biological weapon of mass destruction has been highlighted in a Federal Bureau of Investigations Bioterror report released in November 2007 titled Terrorism 2002-2005, which states that “Ricin and the bacterial agent anthrax are emerging as the most prevalent agents involved in WMD investigations” (http://www.fbi.gov/stats-services/publications/terrorism-2002-2005/terror02_05.pdf).

The Centers for Disease Control has classified ricin toxin as a Category B biological agent. Ricin works by first binding to glycoproteins found on the exterior of a cell, and then entering the cell and inhibiting protein synthesis leading to cell death. Once exposed to ricin toxin, there is no effective therapy available to reverse the course of the toxin. The recent ricin threat to government officials has heightened the awareness of this toxic threat. Currently, there is no FDA approved vaccine to protect against the possibility of ricin toxin being used in a terrorist attack, or its use as a weapon on the battlefield, nor is there a known antidote for ricin toxin exposure.

In January of 2012, a Request for Information (“RFI”) was issued by the Chemical Biological Medical Systems – Joint Vaccine Acquisition Program of the Department of Defense (“DoD”). This RFI was titled “Development of a Ricin Toxin Vaccine to FDA Approval”, and marks the first time any agency of the U.S. government has specifically indicated an interest in development of a vaccine against ricin toxin. We intend to pursue this avenue of funding to the fullest extent.

VeloThrax™ – Anthrax Vaccine

VeloThrax™ is our newly acquired proprietary vaccine based on a recombinant Protective Antigen (“rPA”) derivative intended for use against anthrax. Soligenix has entered into an exclusive license option with Harvard College to license VeloThrax™ (also known as DNI for dominant negative inhibitor) for a vaccine directed at the prevention of anthrax infection of humans. VeloThrax™ is a translocation-deficient mutant of PA with double mutations of K397D and D425K that impede the conformational changes necessary for endosomal membrane translocation into the cell cytoplasm. In the absence of that PA translocation step, anthrax toxin trafficking and function cease. VeloThrax™ is also considered a more immunogenic candidate than native rPA. This apparent increase in immunogenicity suggests that the DNI rPA is processed and presented to the immune system more efficiently by cellular antigen processing pathways, which is consistent with known properties of the molecule.

DNI versions of rPA such as VeloThrax™ are also capable of inducing antibodies that neutralize the activity of the anthrax toxin complex. Unlike fully-functional rPA, VeloThrax™ might be given to a patient post-exposure without risk of enhancing intoxication during an infection, although clinical tests involving intravenous administration of potentially therapeutic levels of DNI rPA resulted in serious adverse events and so further development of this product as a therapeutic biological for blocking the effects of infection by B. anthracis was discontinued. Soligenix intends to test VeloThrax™ at a 1,000 fold lower dose than previously tested for an intramuscular or intradermal vaccine.

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VeloThrax™’s greater immunogenicity could lead to a vaccine that can be administered in the fewest possible doses to induce the highest level of toxin neutralizing antibodies. Utilizing ThermoVax™, we believe that we will be able to develop VeloThrax™ into a vaccine with an improved stability profile, an issue that has proven challenging in the development of other anthrax vaccines. Extended stability at ambient temperatures would be a significant improvement for stockpiled vaccines and one which is not expected from conventional vaccines. Further, a large-scale, cGMP production methodology has already been completed. Assuming long-term stability can be met, VeloThrax™ could be stockpiled for general prophylactic as well as a post exposure use.

The overall objective of the VeloThrax™ program is to rapidly and efficiently develop a next generation anthrax vaccine which combines a well-established, safe and relatively low risk vaccine development and dosing approach with targeted, proven innovative strategies. VeloThrax™ will potentially be a combination of a stable, readily manufactured mutant rPA subunit antigen with next generation, clinically compatible adjuvants which have been demonstrated to enhance potency and reduce the time and number of vaccine doses required to achieve protective titer using a variety of vaccine antigens. This blend of proven yet innovative technologies will provide the Public Health Emergency Medical Countermeasures Enterprise (“PHEMCE”) and the DoD with a safe and stable alternative to the existing licensed anthrax vaccine product. Soligenix also proposes to adapt newly developed glassification technology (initially developed under an ongoing NIAID grant to stabilize exceptionally unstable ricin toxin/adjuvant formulations) to enable a thermostable, dried, single vial, pre-formulated adjuvanted rPA vaccine which is suitable for both long term storage and field use without typical cold chain constraints.

Assuming development efforts are successful for VeloThrax™, we believe potential government procurement contract(s) could reach $500 million.

About Anthrax

Anthrax is an acute infectious disease that is easily transmitted to humans by environmentally durable spores that are produced by Bacillus anthracis. Because the spores are robust and contagious, anthrax is considered a Category A bioterror threat. Anthrax infection can occur in three forms: cutaneous (skin), inhalation, and gastrointestinal. Inhaled spores can cause a rapidly progressing form of anthrax since the spores are transported to lymph nodes near the lungs where they germinate, releasing vegetative bacteria into the bloodstream. Bacteria synthesize a complex series of toxin components that make up anthrax toxin, resulting in overwhelming toxemia that causes shock and organ failure. Treatment of anthrax involves long-term antibiotic therapy, since ungerminated spores can lie dormant in the lungs for up to 60 days. Only a few inhaled spores can cause inhalational anthrax. Once the toxin has entered the bloodstream, antibiotics are ineffective, and only toxin-specific therapy is effective. Passively transferred antibodies can neutralize anthrax toxins and can be used post-exposure in conjunction with antibiotics. Because of the long residence time of spores in the lung, it is possible to vaccinate post-exposure, but the onset of neutralizing antibodies must occur during the period of antibiotic therapy.

OrbeShield™ – for Treating GI ARS

OrbeShield™ (an oral immediate and delayed release formulation of the topically active corticosteroid BDP) is being developed for the treatment of GI ARS. Corticosteroids are the best understood and most widely used class of anti-inflammatory drugs. BDP is a corticosteroid with predominantly topical activity that is approved for use in asthma, psoriasis and allergic rhinitis.

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OrbeShield™ has demonstrated positive preclinical results in a canine GI ARS model which indicate that dogs treated with OrbeShield™ demonstrated statistically significant (p=0.04) improvement in survival with dosing at either two hours or 24 hours after exposure to lethal doses of total body irradiation (“TBI”) when compared to control dogs. OrbeShield™ appears to significantly mitigate the damage to the GI epithelium caused by exposure to high doses of radiation using a well-established canine model of GI ARS.

The GI tract is highly sensitive to ionizing radiation and the destruction of epithelial tissue is one of the first effects of radiation exposure. The rapid loss of epithelial cells leads to inflammation and infection that are often the primary cause of death in acute radiation injury. This concept of GI damage also applies to the clinical setting of oncology, where high doses of radiation cannot be administered effectively to the abdomen because radiation is very toxic to the intestines. This is the same type of toxicity that occurs in Soligenix’s acute radiation enteritis clinical program with SGX201. As a result, there is a dual avenue of development for Soligenix, and OrbeShield™ is potentially a “dual use” compound, a desirable characteristic which is a specific priority of Biomedical Advanced Research and Development Authority(“BARDA”) for ARS and other medical countermeasure indications. BARDA recently invited Soligenix to submit a full contract proposal for a potential multi-year, multi-million dollar contract to develop OrbeShield™ from its current level of technical readiness to potential FDA approval. In response, Soligenix submitted its contract proposal in February 2013. We expect a response in the second half of 2013.

The FDA has cleared the IND application for OrbeShield™ for the mitigation of morbidity and mortality associated with GI ARS. Previously, development of OrbeShield™ had been largely supported by a $1 million NIH grant to Soligenix’s academic partner, the Fred Hutchinson Cancer Research Center. In July 2012, we received an SBIR grant from NIAID of approximately $600,000 to support further preclinical development of OrbeShield™ for the treatment of acute GI ARS. The FDA has awarded OrbeShield™ Orphan Drug and Fast Track designation for the prevention of death following a potentially lethal dose of total body irradiation during or after a radiation disaster.

Assuming development efforts are successful for OrbeShield™, we believe potential government procurement contract(s) could reach as much as $450 million.

About GI ARS

ARS occurs after toxic radiation exposure and involves several organ systems, notably the bone marrow the GI tract and later the lungs. In the event of a nuclear disaster or terrorist detonation of a nuclear bomb, casualties exposed to >2 Gy are at high risk for development of clinically significant ARS. Exposure to high doses of radiation exceeding 10-12 Gy causes acute GI injury which can result in death in 5-15 days. The GI tract is highly sensitive due to the requirement for incessant proliferation of crypt stem cells and production of mucosal epithelium. The extent of injury to the bone marrow and the GI tract are the principal determinants of survival after exposure to TBI. Although the hematopoietic syndrome can be rescued by bone marrow transplantation or growth factor administration, there is no established treatment or preventive measure for the GI damage that occurs after high-dose radiation. Therefore, there is an urgent need to develop specific medical counter measures against the lethal pathophysiological manifestations of radiation-induced GI injury.

SGX943/SGX101– for Treating Melioidosis

SGX943 is the research name for the finished drug product, containing the active ingredient SGX94, which is being studied in melioidosis.  A preliminary study with SGX943 has demonstrated efficacy.  Further preclinical studies are planned with the pursuit of grant applications funding.  Because SGX943 directly targets the innate immune system (and does not attempt to kill the bacteria directly), it is particularly relevant for antibiotic-resistant bacteria.  The bacteria which causes melioidosis, Burkholderia pseudomallei, is known to be resistant to most antibiotics and to require prolonged treatment with the few antibiotics that do work.  Thus, SGX943 may represent a much-needed novel and additive therapy for melioidosis.

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SGX 101 is the research name for the human monoclonal antibody therapy for the treatment of melioidosis based upon Intrexon’s advanced human antibody discovery, isolation, and production technologies.

About Melioidosis

Melioidosis is a potentially fatal infection caused by the Gram-negative bacillus, Burkholderia pseudomallei (“Bp”). Highly resistant to many antibiotics, Bp can cause an acute disease characterized by a fulminant pneumonia and a chronic condition that can recrudesce.  There is no preventive vaccine or effective immunotherapy for melioidosis.  Therefore, there is a significant medical need for improved prevention and therapy.

Bp infection (melioidosis) is a major public health concern in the endemic regions of Southeast Asia and Northern Australia. Moreover, the organism has a worldwide distribution and the full extent of global spread is likely underestimated.  In Northeast Thailand, which has the highest incidence of melioidosis recorded in the world, the mortality rate associated with Bp infection is over 40 percent, making it the third most common cause of death from infectious disease in that region after HIV/AIDS and tuberculosis. Bp activity is seen in Southeast Asia, South America, Africa, the Middle East, India, and Australia. The highest pockets of disease activity occur in Northern Australia and Northeast Thailand with increasing recognition of disease activity in coastal regions of India.  Melioidosis has been under recognized and is likely to be under-reported in China.

Beyond its public health significance, Bp and the closely-related Burkholderia mallei (“Bm”) are considered possible biological warfare agents by the DHHS because of the potential for widespread dissemination through aerosol. Bp like its relative Bm, the cause of Glanders, was studied by the U.S. as a potential biological warfare agent, but was never weaponized.  It has been reported that the Soviet Union was also experimenting with Bp as a biological warfare agent.   Both Bp and Bm have been designated high priority threats by the DHHS in its PHEMCE Strategy released in 2012 and are classified as Category B Priority Pathogens by NIAID.

Critical Accounting Policies

Our discussion and analysis of our financial condition and results of operations are based upon our consolidated financial statements, which have been prepared in accordance with accounting principles generally accepted in the U.S. The preparation of these financial statements requires us to make estimates and judgments that affect the reported amounts of assets, liabilities and expenses, and related disclosure of contingent assets and liabilities. We evaluate these estimates and judgments on an on-going basis.

Intangible Assets

One of the most significant estimates or judgments that we make is whether to capitalize or expense patent and license costs. We make this judgment based on whether the technology has alternative future uses, as defined in Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 730, Research and Development. Based on this consideration, we capitalized payments made to legal firms that are engaged in filing and protecting rights to intellectual property and rights for our current products in both the domestic and international markets. We believe that patent rights are one of our most valuable assets. Patents and patent applications are a key component of intellectual property, especially in the early stage of product development, as their purchase and maintenance gives us access to key product development rights from our academic and industrial partners. These rights can also be sold or sub-licensed as part of our strategy to partner our products at each stage of development as the intangible assets have alternative future use. The legal costs incurred for these patents consist of work associated with filing new patents designed to protect, preserve, maintain and perhaps extending the lives of the patents. We capitalize such costs and amortize intangibles over their expected useful life - generally a period of 11 to 16 years.

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These intangible assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable or if the underlying program is no longer being pursued. If the sum of the expected undiscounted cash flows is less than the carrying value of the related asset or group of assets, a loss is recognized for the difference between the fair value and carrying value of the related asset or group of assets.

Research and Development Costs

Research and development costs are charged to expense when incurred in accordance with FASB ASC 730, Research and Development. Research and development includes costs such as clinical trial expenses, contracted research and license agreement fees with no alternative future use, supplies and materials, salaries stock based compensation, employee benefits, equipment depreciation and allocation of various corporate costs. Purchased in-process research and development expense represents the value assigned or paid for acquired research and development for which there is no alternative future use as of the date of acquisition.

Revenue Recognition

Principally our revenues are generated from NIH grants and revenues from licensing activities and the achievement of licensing milestones (in prior periods). Recording of revenue is applied in accordance with FASB ASC 605, Revenue Recognition, ASC 605-25 and/or Accounting Standard Update, ASU, 2009-13, Revenue Recognition – Multiple Element Arrangements. The revenue from NIH grants is based upon subcontractor costs and internal costs incurred that are specifically covered by the grants, plus a facilities and administrative rate that provides funding for overhead expenses. These revenues are recognized when expenses have been incurred by subcontractors or when we incur internal expenses that are related to the grant.

Stock-Based Compensation

We determine stock-based compensation expense for options, warrants and shares of common stock granted to non-employees in accordance with FASB ASC 718, Stock Compensation, and FASB ASC 505-50, Equity-Based Payments to Non-Employees, and represents the fair value of the consideration received, or the fair value of the equity instruments issued, whichever may be more reliably measured. For options that vest over future periods, the fair value of options granted to non-employees is amortized as the options vest. The option’s price is remeasured using the Black-Scholes model at the end of each quarterly reporting period. Stock-based compensation expense recognized during the period is based on the value of the portion of share-based payment awards that is ultimately expected to vest during the period.

Material Changes in Results of Operations

Three and Six Months Ended June 30, 2013 Compared to June 30, 2012

For the three months ended June 30, 2013, we had a net loss of $3,405,157 as compared to a net loss of $979,878 for the same period in the prior year, representing an increase in the net loss of $2,425,279 or 248%. For the six months ended June 30, 2013, we had a net loss of $4,492,571 as compared to a net loss of $2,418,633 for the same period in the prior year, representing an increase of $2,073,938 or 86%.  Included in the net loss for the three months and six months ended June 30, 2013, is a non-cash charge of $649,576 which represents the change in the fair value of the warrant liability related to warrants issued in connection with our recent registered public offering.

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For the three and six months ended June 30, 2013, revenues and associated costs related to NIH grants awarded which supported development of our thermostable vaccines and orBec®. For the three months ended June 30, 2013, we had revenues of $632,278 as compared to $762,851 for the same period in the prior year, representing a decrease of $130,573 or 17%. For the six months ended June 30, 2013, we had revenues of $1,532,632 as compared to $1,410,269 for the same period in the prior year, representing an increase of $122,363 or 9%. The changes in revenues during both periods were a result of timing of grant activity impacting our NIH grant drawdowns and the associated development work underlying them.

We incurred costs related to those revenues for the three months ended June 30, 2013 and 2012 of $527,948 and $616,330, respectively, representing a decrease of $88,382, or 14%. For the six months ended June 30, 2013, costs related to revenues were $1,271,605 as compared to $1,172,901 for the same period in the prior year, representing an increase of $98,704, or 8%. These costs relate to payments made to subcontractors in connection with research performed pursuant to the grants. The fluctuations are due to the development activity performed on the NIH grants discussed above.

Our gross profit for the three months ended June 30, 2013 was $104,330 as compared to $146,521 for the same period in 2012, representing a decrease of $42,191 or 29%. The decrease in gross profit is directly related to a decrease in grant revenue. For the six months ended June 30, 2013, gross profit was $261,027 as compared to $237,368 for the same period in the prior year representing an increase of $23,659 or 10%. The increase in gross profit is attributable to our increase in grant revenue.

Research and development expenses increased by $1,639,494 to $2,140,474 for the three months ended June 30, 2013 as compared to $500,980 for the same period in 2012. For the six months ended June 30, 2013, research and development expenses were $2,897,127 compared to $1,377,774 for the same period in 2012, reflecting an increase of $1,519,353. The significant increase for both the three months and six months ended June 30, 2013, was a result of the exclusive channel collaboration agreement entered into with Intrexon Corporation under which we issued common stock with a value of $1,500,000 and costs related to the Phase 1/2 trial for Pediatric Crohn’s.

Financial Condition

Cash and Working Capital

As of June 30, 2013, we had cash and cash equivalents of $8,127,742 as compared to $3,356,380 as of December 31, 2012, representing an increase of $4,771,362 or 142%. As of June 30, 2013, we had working capital of $6,871,370, which excludes a non cash warranty liability of $5,177,831, as compared to working capital of $2,682,383 as of December 31, 2012, representing an increase of $4,188,987 or 156%. The increase in cash and working capital was primarily the result of net proceeds of $6,216,762 received from our registered public offering partially offset by $1,446,886 of cash used in operating activities over the six month period ended June 30, 2013.

Based on cash on hand, our current rate of cash outflows, proceeds from our grant-funded programs, and expected proceeds from the State of New Jersey Technology Business Tax Certificate Transfer Program, management believes that our cash will be sufficient to meet the anticipated cash needs for working capital and capital expenditures into the first quarter 2015.

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Our plans with respect to our liquidity management include, but are not limited to, the following:

● We have approximately $2.3 million in active grant funding still available to support our associated research programs into 2014. We plan to submit additional grant applications for further support of these programs with various funding agencies.

● We have continued to use equity instruments to provide a portion of the compensation due to vendors and collaboration partners and expect to continue to do so for the foreseeable future.

● We will pursue sale of Net Operating Losses (“NOLs”) in the State of New Jersey, pursuant to its Technology Business Tax Certificate Transfer Program. Based on the receipt of $521,458 in proceeds from the sale of NJ NOL in 2012, we expect to participate in this expanded program during 2013 and beyond as the program is available; and

● We may seek additional capital in the private and/or public equity markets to continue our operations, respond to competitive pressures, develop new products and services, and to support new strategic partnerships. We are currently evaluating additional equity financing opportunities and may execute them when appropriate. However, there can be no assurances that we can consummate such a transaction, or consummate a transaction at favorable pricing.

Expenditures

Under our budget and based upon our existing product development agreements and license agreements pursuant to letters of intent and option agreements, we expect our total research and development expenditures for the next 12 months to be approximately $5.8 million before any grant reimbursements, of which $4.4 million relates to the BioTherapeutics business and $1.4 million relates to the Vaccines/BioDefense business. We anticipate grant revenues in the next 12 months of approximately $2.0 million to offset research and development expenses, primarily for the development of our ThermoVax™ vaccine technology.

The table below details our costs for research and development by program and amounts reimbursed under grants for the six months ended June 30:

	2013		2012
Research & Development Expenses
Oral BDP	$	635,730	$	516,982
RiVax™ and ThermoVax™ Vaccines		598,155		743,918
SGX 94		94,052		-
SGX 943/SGX101		1,500,000		-
Other		69,190		116,874
Total	$	2,897,127	$	1,377,774
Reimbursed under NIH Grants
Oral BDP	$	101,176	$	98,828
RiVax™ and thermostable vaccines		1,170,429		1,074,073
Total		1,271,605		1,172,901
Grand Total	$	4,168,732	$	2,550,675

Contractual Obligations

The Company has commitments of approximately $362,500 as of June 30, 2013 relating to several licensing agreements with consultants and universities, which upon clinical or commercialization success may require the payment of milestones and/or royalties if and when achieved. However, there can be no assurance that clinical or commercialization milestones will occur.

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On February 7, 2012, we entered into a lease agreement through March 31, 2015 for our existing office space. The rent for the first 12 months is approximately $8,000 per month, or approximately $18.25 per square foot on an annualized basis. This rent increases to approximately $8,310 per month, or approximately $19.00 per square foot on an annualized basis, for the remaining 24 months.

In February 2007, the Company’s Board of Directors authorized the issuance of the following shares to Dr. Schaber and Dr. Brey, upon the completion of a transaction, or series or a combination of related transactions negotiated by our Board of Directors whereby, directly or indirectly, a majority of our capital stock or a majority of its assets are transferred from us and/or our stockholders to a third party: 50,000 common shares to Dr. Schaber and 10,000 common shares to Dr. Brey. The employment agreement with Dr. Schaber has been amended to reflect this obligation. 

As a result of the above agreements, the Company has future contractual obligations over the next five years as follows:

Year	Research and Development		Property and Other Leases		Total
2013	$	37,500	$	53,000	$	90,500
2014		100,000		101,100		201,100
2015		75,000		24,900		99,900
2016		75,000		-		75,000
2017		75,000		-		75,000
Total	$	362,500	$	179,000	$	541,500

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ITEM 3 - QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Our primary exposure to market risk is interest income sensitivity, which is affected by changes in the general level of U.S. interest rates, particularly because the majority of our investments are in short-term marketable securities. Due to the nature of our short-term investments, we believe that we are not subject to any material market risk exposure. We do not have any foreign currency or other derivative financial instruments.

ITEM 4 - CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

Disclosure controls and procedures are the Company’s controls and other procedures that are designed to ensure that information required to be disclosed by us in the reports that we file or submit under the Securities Exchange Act of 1934, as amended (the “Exchange Act”) is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by us in the reports that we file under the Exchange Act is accumulated and communicated to our management, including our principal executive officer and principal financial officer, as appropriate, to allow timely decisions regarding required disclosure. Our management recognizes that any controls and procedures, no matter how well designed and operated, can only provide reasonable assurance of achieving their objectives and management necessarily applies its judgment in evaluating the possible controls and procedures.

Our management has evaluated, with the participation of our principal executive officerand principal financial officer, the effectiveness of ourdisclosure controls and procedures (as such term is defined in Rules 13a-15(e)and 15d-15(e) under the Exchange Act as of the end of the period covered by this report. Based upon that evaluation, our management, including our principal executive officer and principal financial officer has concluded that, as of the end of the period covered by this report, the Company’s disclosure controls and procedures were effective at the reasonable assurance level.

Changes in Internal Controls

There was no change in our internal control over financial reporting identified in connection with the evaluation of such internal controls that occurred during our last fiscal quarter that has materially affected, or is reasonably likely to materially affect, the Company’s internal control over financial reporting.

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PART II - OTHER INFORMATION.

ITEM 1A – RISK FACTORS

We have identified no additional risk factors other than those included in Part I, Item 1A of our Form 10-K for the fiscal year ended December 31, 2012. Readers are urged to carefully review our risk factors because they may cause our results to differ from the "forward-looking" statements made in this report. Additional risks not presently known to us or other factors not perceived by us to present significant risks to our business at this time also may impair our business, financial condition and results of operations. We do not undertake to update any of the "forward-looking" statements or to announce the results of any revisions to these "forward-looking" statements, except as required by law.

ITEM 2 – UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

On April 12, 2013, the Company issued 2,041 shares of common stock to a consultant as partial consideration for services performed.  The per share closing price of the Company’s common stock on March 28, 2013 was $1.47, which was the date on which the liability was recognized.

The issuance of these shares was exempt from registration pursuant to Section 4(2) of the Securities Act of 1933, as amended.

ITEM 6 - EXHIBITS

EXHIBIT NO.	DESCRIPTION
31.1	Certification of Chief Executive Officer pursuant to Exchange Act rule 13(a)-14(a) (under Section 302 of the Sarbanes-Oxley Act of 2002).
31.2	Certification of Chief Financial Officer pursuant to Exchange Act rule 13(a)-14(a) (under Section 302 of the Sarbanes-Oxley Act of 2002).
32.1	Certification of Chief Executive Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2	Certification of Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

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SIGNATURES

In accordance with the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	SOLIGENIX, INC.
August 12, 2013	By	/s/ Christopher J. Schaber
		Christopher J. Schaber, PhD President and Chief Executive Officer (Principal Executive Officer)
August 12, 2013	By	/s/ Joseph M. Warusz
		Joseph M. Warusz, CPA Vice President, Finance and Acting Chief Financial Officer (Principal Financial and Accounting Officer)

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EXHIBIT INDEX

EXHIBIT NO.	DESCRIPTION
31.1	Certification of Chief Executive Officer pursuant to Exchange Act rule 13(a)-14(a) (under Section 302 of the Sarbanes-Oxley Act of 2002).
31.2	Certification of Chief Financial Officer pursuant to Exchange Act rule 13(a)-14(a) (under Section 302 of the Sarbanes-Oxley Act of 2002).
32.1	Certification of Chief Executive Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2	Certification of Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

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EX-31.1

EXHIBIT 31.1

CERTIFICATION PURSUANT TO RULE 13a-14(a)/15d-14(a)

OF THE SECURITIES EXCHANGE ACT OF 1934

I, Christopher J. Schaber, Ph.D., certify that:

1.   I have reviewed this Form 10-Q of the Soligenix, Inc. for the quarter period ended June 30, 2013;

2.   Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.   Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.   The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a.   Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b.   Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c.   Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d.   Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.   The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a.   All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b.   Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Auguts 12, 2013	/s/ Christopher J. Schaber
	Christopher J. Schaber, Ph.D.
	President and Chief Executive Officer
	(Principal Executive Officer)

EX-31.2

EXHIBIT 31.2

CERTIFICATION PURSUANT TO RULE 13a-14(a)/15d-14(a)

OF THE SECURITIES EXCHANGE ACT OF 1934

I, Joseph M. Warusz, certify that:

1.   I have reviewed this Form 10-Q of the Soligenix, Inc. for the quarter perid ended June 30, 2013;

2.   Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.   Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.   The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a.   Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b.   Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c.   Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d.   Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.   The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a.   All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b.   Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Auguts 12, 2013	/s/ Joseph M. Warusz
	Joseph M. Warusz, CPA
	Vice Presient of Finance,  Acting Chief Financial Officer
	(Principal Financial  and Accounting Officer)

EX-32.1

EXHIBIT 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906

OF THE SARBANES-OXLEY ACT OF 2002

In connection with this Form 10-Q of Soligenix, Inc. (the “Company”) for the fiscal quarter ended June 30, 2013, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned hereby certifies, pursuant to 18 U.S.C. Section 1350, that:

1.   The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2.   The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Auguts 12, 2013	/s/ Christopher J. Schaber
	Christopher J. Schaber, Ph.D.
	President and Chief Executive Officer
	(Principal Executive Officer)

EX-32.2

EXHIBIT 32.2

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906

OF THE SARBANES-OXLEY ACT OF 2002

In connection with this Form 10-Q of Soligenix, Inc. (the “Company”) for the fiscal quarter ended June 30, 2013, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned hereby certifies, pursuant to 18 U.S.C. Section 1350, that:

1.   The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2.   The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Auguts 12, 2013	/s/ Joseph M. Warusz
	Joseph M. Warusz, CPA
	Vice Presient of Finance,  Acting Chief Financial Officer
	(Principal Financial  and Accounting Officer)

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Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2013

Intangible Assets [Abstract]

Summary of intangible assets

	Weighted Average Remaining Amortization Period (years)		Cost		Accumulated Amortization		Net Book Value
June 30, 2013
Licenses		7.2	$	462,234	$	265,528	$	196,706
Patents		3.0		1,893,185		1,344,859		548,326
Total		3.8	$	2,355,419	$	1,610,387	$	745,032
December 31, 2012
Licenses		7.7	$	462,234	$	252,019	$	210,215
Patents		3.3		1,893,185		1,247672		645,513
Total		4.2	$	2,355,419	$	1,499,691	$	855,728

Summary of annual amortization expense

	Amortization Expense
2013	$	222,800
2014	$	222,800
2015	$	133,000
2016	$	61,800
2017	$	20,800

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Consolidated Statements of Operations (Unaudited) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Statements of Operations [Abstract]
Revenues, principally from grants	$ 632,278	$ 762,851	$ 1,532,632	$ 1,410,269
Cost of revenues	(527,948)	(616,330)	(1,271,605)	(1,172,901)
Gross profit	104,330	146,521	261,027	237,368
Operating expenses:
Research and development	2,140,474	500,980	2,897,127	1,377,774
General and administrative	719,740	627,218	1,207,681	1,282,261
Total operating expenses	2,860,214	1,128,198	4,104,808	2,660,035
Loss from operations	(2,755,884)	(981,677)	(3,843,781)	(2,422,667)
Other income (expense):
Change in fair value of warrant liability	(649,576)		(649,576)
Interest income, net	303	1,799	786	4,034
Net loss	$ (3,405,157)	$ (979,878)	$ (4,492,571)	$ (2,418,633)
Basic and diluted net loss per share	$ (0.28)	$ (0.09)	$ (0.38)	$ (0.22)
Basic and diluted weighted average common shares outstanding	12,259,394	11,124,359	11,720,066	11,121,814

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Warrant Liabilities

6 Months Ended

Jun. 30, 2013

Warrant Liabilities [Abstract]

Warrant Liabilities

Note 4. Warrant Liabilities

Warrants issued in connection with the Company’s registered public offering contain provisions that protect holders from a decline in the issue price of its common stock (or “down-round” provisions) and contain net settlement provisions. The Company accounts for these warrants as liabilities instead of equity. Down-round provisions reduce the exercise or conversion price of a warrant if a company issues equity shares for a price that is lower than the exercise or conversion price of  the warrants. Net settlement provisions allow the holder of the warrant to surrender shares underlying the warrant equal to the exercise price as payment of its exercise price, instead of exercising the warrant by paying cash. The Company evaluates whether warrants to acquire its common stock contain provisions that protect holders from declines in the stock price or otherwise could result in modification of the exercise price and/or shares to be issued under the respective warrant agreements based on a variable that is not an input to the fair value of a “fixed-for-fixed” option.

The Company recognizes these warrants as liabilities at their fair value on the date of grant and remeasures them at fair value on each reporting date.

The Company recognized an initial warrant liability for the warrants issued in connection with the registered public offering completed in June 2013. The initial warrant liability recognized on the related warrants totaled $4,528,255, which was based on the June 25, 2013 closing price of a share of our common stock as reported on OTC Markets of $0.96. On June 30, 2013, the closing price of our common stock as reported on OTC Markets was $1.06. Due to the fluctuations in the market value of our common stock from June 25, 2013 through June 30, 2013, we recognized a non-cash charge of $649,576 for the change in the fair value of the warrant liability.

The assumptions used in connection with the valuation of warrants issued were as follows:

	June 30, 2013			Initial Measurement June 25, 2013
Number of shares underlying the warrants		5,080,500			5,080,500
Exercise price	$	1.65		$	1.65
Volatility		140	%		140	%
Risk-free interest rate		1.49	%		1.49	%
Expected dividend yield		0			0
Expected warrant life (years)		5			5
Stock Price	$	1.06		$	0.96

Recurring Level 3 Activity and Reconciliation

The table below provides a reconciliation of the beginning and ending balances for the liability measured at fair value using significant unobservable inputs (Level 3). The table reflects losses for the six months ended June 30, 2013 for the financial liability categorized as Level 3 as of June 30, 2013.

Fair Value Measurements Using Significant Unobservable Inputs (Level 3):

	March 31, 2013		Initial Measurement		Increase in Fair Value		June 30, 2013
2013 Warrant		-	$	4,528,255	$	649,576	$	5,177,831

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Intangible Assets (Details) (USD $)	Jun. 30, 2013	Dec. 31, 2012
Summary of intangible assets
Weighted Average Remaining Amortization Period (years)	3 years 9 months 18 days	4 years 2 months 12 days
Cost	$ 2,355,419	$ 2,355,419
Accumulated Amortization	1,610,387	1,499,691
Net Book Value	745,032	855,728
Licenses [Member]
Summary of intangible assets
Weighted Average Remaining Amortization Period (years)	7 years 2 months 12 days	7 years 8 months 12 days
Cost	462,234	462,234
Accumulated Amortization	265,528	252,019
Net Book Value	196,706	210,215
Patents [Member]
Summary of intangible assets
Weighted Average Remaining Amortization Period (years)	3 years	3 years 3 months 18 days
Cost	1,893,185	1,893,185
Accumulated Amortization	1,344,859	1,247,672
Net Book Value	$ 548,326	$ 645,513

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Warrant Liabilities (Tables)

6 Months Ended

Jun. 30, 2013

Warrant Liabilities [Abstract]

Summary of assumptions used in connection with the valuation of warrants issued

	June 30, 2013			Initial Measurement June 25, 2013
Number of shares underlying the warrants		5,080,500			5,080,500
Exercise price	$	1.65		$	1.65
Volatility		140	%		140	%
Risk-free interest rate		1.49	%		1.49	%
Expected dividend yield		0			0
Expected warrant life (years)		5			5
Stock Price	$	1.06		$	0.96

Summary of fair value measurements using significant unobservable inputs (Level 3)

	March 31, 2013		Initial Measurement		Increase in Fair Value		June 30, 2013
2013 Warrant		-	$	4,528,255	$	649,576	$	5,177,831

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Warrant Liabilities (Details) (Warrant [Member], USD $)	0 Months Ended	6 Months Ended
	Jun. 25, 2013	Jun. 30, 2013
Warrant [Member]
Summary of assumptions used in connection with the valuation of warrants issued
Number of shares underlying the warrants	5,080,500	5,080,500
Exercise price	$ 1.65	$ 1.65
Volatility	140.00%	140.00%
Risk-free interest rate	1.49%	1.49%
Expected dividend yield	0.00%	0.00%
Expected warrant life (years)	5 years	5 years
Stock Price	$ 0.96	$ 1.06

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Intangible Assets (Details Textual) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Intangible Assets (Textual)
Amortization expense	$ 55,654	$ 55,208	$ 110,696	$ 101,845

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Operating Segments (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Summary of segmental information
Revenues, principally from grants	$ 632,278	$ 762,851	$ 1,532,632	$ 1,410,269
Income (Loss) from Operations	(2,755,884)	(981,677)	(3,843,781)	(2,422,667)
Amortization and Depreciation Expense	57,067	51,408	113,566	108,753
Other Income /(Expense), Net	303	1,799	786	4,034
Stock-Based Compensation	84,788	117,388	164,280	235,002
Identifiable Assets	9,273,995		9,273,995		4,705,104
Vaccines/BioDefense [Member]
Summary of segmental information
Revenues, principally from grants	588,496	710,237	1,418,345	1,307,842
Income (Loss) from Operations	(1,532,472)	(2,144)	(1,563,467)	(130,509)
Amortization and Depreciation Expense	27,968	24,954	55,635	52,951
Stock-Based Compensation	11,128	2,130	22,249	4,260
Identifiable Assets	470,414		470,414		628,494
BioTherapeutics [Member]
Summary of segmental information
Revenues, principally from grants	43,782	52,614	114,287	102,427
Income (Loss) from Operations	(530,640)	(481,817)	(988,266)	(1,207,859)
Amortization and Depreciation Expense	28,675	25,892	57,070	54,733
Stock-Based Compensation	25,905	56,194	46,941	112,614
Identifiable Assets	466,498		466,498		566,111
Corporate [Member]
Summary of segmental information
Income (Loss) from Operations	(692,772)	(497,716)	(1,292,048)	(1,084,299)
Amortization and Depreciation Expense	424	562	861	1,069
Other Income /(Expense), Net	(649,273)	1,799	(648,790)	4,034
Stock-Based Compensation	47,755	59,064	95,090	11,812
Identifiable Assets	$ 8,337,083		$ 8,337,083		$ 3,510,499

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Shareholders' Equity (Details) (USD $)	0 Months Ended			0 Months Ended	6 Months Ended	0 Months Ended
	Jun. 25, 2013	Jun. 30, 2013	Dec. 31, 2012	Jun. 25, 2013 Common Stock [Member]	Jun. 30, 2013 Common Stock [Member]	Jun. 25, 2013 Common Stock [Member] Intrexon Corporation [Member]
Shareholders' Equity (Textual)
Description of public unit offering completed on June 25, 2013					Public unit offering consisting of one share of common stock and an additional warrant of 0.75 share of common stock.
Shares issued under public unit offering				6,773,995
Number of stock issued upon exercise of vested stock options				25,000
Stock issued in connection with an exclusive channel collaboration						1,034,483
Common stock issued to vendors for services performed, Shares				28,104
Preferred stock, shares authorized		350,000	350,000
Preferred stock, shares issued
Preferred stock, shares outstanding
Number of warrant issued under public offering	5,080,500
Warrant duration	5 years
Exercise price of warrant	$ 1.65

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Intangible Assets (Details 1) (USD $)	Jun. 30, 2013
Summary of annual amortization expense
2013	$ 222,800
2014	222,800
2015	133,000
2016	61,800
2017	$ 20,800

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Consolidated Statements of Cash Flows (Unaudited) (USD $)	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Operating activities:
Net loss	$ (4,492,571)	$ (2,418,633)
Adjustments to reconcile net loss to net cash used in operating activities:
Amortization and depreciation	113,566	108,753
Common stock and warrants issued in exchange for services	1,535,888	3,000
Change in fair value of warrant liability	649,576
Restricted stock issued to employee		10,000
Stock-based compensation	164,280	235,002
Change in operating assets and liabilities:
Grants receivable	149,197	122,874
Other receivable		574,157
Prepaid expenses	(54,278)	(54,216)
Accounts payable	240,338	(83,987)
Accrued compensation	247,118	(57,575)
Total adjustments	3,045,685	858,008
Net cash used in operating activities	(1,446,886)	(1,560,625)
Investing activities:
Purchase of office equipment	(6,014)	(4,755)
Net cash used in investing activities	(6,014)	(4,755)
Financing activities:
Proceeds from sale of common stock	6,216,762
Proceeds from exercise of options	7,500
Net cash provided by financing activities	6,224,262
Net increase / (decrease) in cash and cash equivalents	4,771,362	(1,565,380)
Cash and cash equivalents at beginning of period	3,356,380	5,996,668
Cash and cash equivalents at end of period	8,127,742	4,431,288
Supplemental disclosure of non cash investing and financing activities:
Warrant issued in Unit Offering	$ 4,528,255

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Summary of Significant Accounting Policies

6 Months Ended

Jun. 30, 2013

Summary of Significant Accounting Policies [Abstract]

Summary of Significant Accounting Policies

Note 2. Summary of Significant Accounting Policies

Principles of Consolidation

The consolidated financial statements include Soligenix, Inc., and its wholly and majority owned subsidiaries. All significant intercompany accounts and transactions have been eliminated as a result of consolidation.

Operating Segments

Operating segments are defined as components of an enterprise about which separate financial information is available that is evaluated on a regular basis by the chief operating decision maker, or decision making group, in deciding how to allocate resources to an individual segment and in assessing the performance of the segment. The Company divides its operations into two operating segments: BioTherapeutics and Vaccines/BioDefense.

Grants Receivable

Grants receivable consist of unbilled amounts due from various grants from the NIH for costs incurred under reimbursement contracts prior to the period end. The amounts were billed to the NIH in the month subsequent to period end and collected shortly thereafter. Accordingly, no allowance for doubtful amounts has been established. If amounts become uncollectible, they are charged to operations.

Intangible Assets

One of the most significant estimates or judgments that the Company makes is whether to capitalize or expense patent and license costs. The Company makes this judgment based on whether the technology has alternative future uses, as defined in Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 730, Research and Development. Based on this consideration, the Company capitalizes payments made to legal firms that are engaged in filing and protecting rights to intellectual property and rights for its current products in both the domestic and international markets. The Company believes that patent rights are one of its most valuable assets. Patents and patent applications are a key component of intellectual property, especially in the early stage of product development, as their purchase and maintenance gives the Company access to key product development rights from Soligenix’s academic and industrial partners. These rights can also be sold or sub-licensed as part of its strategy to partner its products at each stage of development as the intangible assets have alternative future use. The legal costs incurred for these patents consist of work associated with filing new patents and perhaps extending the lives of the patents. The Company capitalizes such costs and amortizes intangibles over their expected useful life – generally a period of 11 to 16 years.

The Company did not incur any capitalizable patent related costs during the six months ended June 30, 2013 and 2012.

Impairment of Long-Lived Assets

Office furniture, equipment and intangible assets are evaluated and reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. The Company recognizes impairment of long-lived assets in the event the net book value of such assets exceeds the estimated future undiscounted cash flows attributable to such assets. If the sum of the expected undiscounted cash flows is less than the carrying value of the related asset or group of assets, a loss is recognized for the difference between the fair value and the carrying value of the related asset or group of assets. Such analyses necessarily involve significant judgment.

The Company did not record any impairment of long-lived assets for the six months ended June 30, 2013 or 2012.

Fair Value of Financial Instruments

FASB ASC 820 — Fair Value Measurements and Disclosures, defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. FASB ASC 820 requires disclosures about the fair value of all financial instruments, whether or not recognized, for financial statement purposes. Disclosures about the fair value of financial instruments are based on pertinent information available to us on June 30, 2013. Accordingly, the estimates presented in these financial statements are not necessarily indicative of the amounts that could be realized on disposition of the financial instruments.

FASB ASC 820 specifies a hierarchy of valuation techniques based on whether the inputs to those valuation techniques are observable or unobservable. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect market assumptions. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurement) and the lowest priority to unobservable inputs (Level 3 measurement).

The three levels of the fair value hierarchy are as follows:

● Level 1 — Quoted prices in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date. Level 1 primarily consists of financial instruments whose value is based on quoted market prices such as exchange-traded instruments and listed equities.

● Level 2 — Inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly. Level 2includes financial instruments that are valued using models or other valuation methodologies. These models consider various assumptions, including volatility factors, current market prices and contractual prices for the underlying financial instruments. Substantially all of these assumptions are observable in the marketplace, can be derived from observable data or are supported by observable levels at which transactions are executed in the marketplace.

● Level 3 — Unobservable inputs for the asset or liability. Financial instruments are considered Level 3 when their fair values are determined using pricing models, discounted cash flows or similar techniques and at least one significant model assumption or input is unobservable.

The carrying amounts reported in the consolidated balance sheet for cash and cash equivalents, accounts receivable, accounts payable and accrued expenses approximate their fair value based on the short-term maturity of these instruments.  The Company recognizes all derivative financial instruments as assets or liabilities in the financial statements and measures them at fair value with changes in fair value reflected as current period income or loss unless the derivatives qualify as hedges. As a result, certain warrants issued in connection with the offering were accounted for as derivatives.  See Note 4, Warrant Liabilities.

Revenue Recognition

Principally the Company’s revenues are generated from NIH grants and revenues from licensing activities and the achievement of licensing milestones (in prior periods). Recording of revenue is applied in accordance with FASB ASC 605, Revenue Recognition, ASC 605-25 and/or Accounting Standard Update, ASU, 2009-13, Revenue Recognition – Multiple Element Arrangements. The revenue from NIH grants is based upon subcontractor costs and internal costs incurred that are specifically covered by the grants, plus a facilities and administrative rate that provides funding for overhead expenses. These revenues are recognized when expenses have been incurred by subcontractors or when the Company incurs internal expenses that are related to the grant.

Research and Development Costs

Research and development costs are charged to expense when incurred in accordance with FASB ASC 730, Research and Development. Research and development includes costs such as clinical trial expenses, contracted research and license agreement fees with no alternative future use, supplies and materials, salaries stock based compensation, employee benefits, equipment depreciation and allocation of various corporate costs. Purchased in-process research and development expense represents the value assigned or paid for acquired research and development for which there is no alternative future use as of the date of acquisition.

Stock-Based Compensation

Stock options are issued with an exercise price equal to the market price on the date of issuance. Stock options issued to directors upon re-election vest quarterly for a period of one year (new director issuances are fully vested upon issuance). Stock options issued to employees vest 25% immediately as of the grant date, then 25% each subsequent year for a period of three years. Stock options vest over each three month period from the date of issuance to the end of the three year period. These options have a ten year life for as long as the individuals remain employees or directors. In general when an employee or director terminates their position the options will expire within three months, unless otherwise extended by the Board.

Stock compensation expense for options, warrants and shares of common stock granted to non-employees has been determined in accordance with FASB ASC 718, Stock Compensation, and FASB ASC 505-50, Equity-Based Payments to Non-Employees, and represents the fair value of the consideration received, or the fair value of the equity instruments issued, whichever may be more reliably measured. For options that vest over future periods, the fair value of options granted to non-employee directors is amortized as the options vest.

The Company issued 26,000 and 100,000 options during the six months ending June 30, 2013 and 2012, respectively.

The fair value of options granted are estimated using the Black-Scholes option pricing model utilizing the following assumptions and are amortized ratably over the option vesting periods, which approximates the service period:

● a dividend yield of 0%;

● an expected life of 4 years;

● volatility of 167% and 160% for 2013 and 2012, respectively;

● forfeitures at rate of 12%; and

● risk-free interest rates of 1.09% and 0.51% in 2013 and 2012, respectively.

Income Taxes

Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. A valuation allowance is established when it is more likely than not that all or a portion of a deferred tax asset will not be realized. A review of all available positive and negative evidence is considered, including the Company’s current and past performance, the market environment in which the Company operates, the utilization of past tax credits, and the length of carryback and carryforward periods. Deferred tax assets and liabilities are measured utilizing tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. No current or deferred income taxes have been provided through June 30, 2013 due to the net operating losses incurred by the Company since its inception. The Company recognizes accrued interest and penalties associated with uncertain tax positions, if any, as part of income tax expense. There were no tax related interest and penalties recorded for 2013 and 2012. Additionally, the Company has not recorded an asset for unrecognized tax benefits or a liability for uncertain tax positions at June 30, 2013 or 2012. Tax years beginning in 2010 for federal purposes are generally subject to examination by the taxing authorities, although net operating losses from those years are subject to examinations and adjustments for at least three years following the year in which the tax attributes are utilized.

Earnings Per Share

Basic earnings per share (“EPS”) excludes dilution and is computed by dividing income (loss) available to common stockholders by the weighted-average number of common shares outstanding for the period, Diluted EPS reflects the potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock or resulted in the issuance of common stock that shared in the earnings of the entity. Since there is a significant number of options and warrants outstanding, fluctuations in the actual market price can have a variety of results for each period presented.

	Three Months Ended June 30,
	2013								2012
	Net Loss			Shares		EPS			Net Loss			Shares		EPS
Basic & Diluted EPS	$	(3,405,157	)		12,259,394	$	(0.28	)	$	(979,878	)		11,124,359	$	(0.09	)

	Six Months Ended June 30,
	2013								2012
	Net Loss			Shares		EPS			Net Loss			Shares		EPS
Basic & Diluted EPS	$	(4,492,571	)		11,720,066	$	(0.38	)	$	(2,418,633	)		11,121,814	$	(0.22	)

Shares issuable upon the exercise of options and warrants outstanding at June 30, 2013 and 2012 were 1,447,474 and 1,596,898 shares issuable upon the exercise of outstanding stock options, and 7,923,838 and 2,576,341 shares issuable upon the exercise of outstanding warrants, respectively. The weighted average exercise price of the Company’s stock options and warrants outstanding at June 30, 2013 were $3.16 and $2.18 per share, respectively. The weighted average exercise price of the Company’s stock options and warrants outstanding at June 30, 2012 were $3.50 and $4.32 per share, respectively. No options or warrants were included in the 2013 and 2012 computations of diluted earnings per share because their effect would be anti-dilutive as a result of losses in each of those years.

Use of Estimates and Assumptions

The preparation of financial statements in conformity with accounting principles generally accepted in the U.S. requires management to make estimates and assumptions such as the fair value of warrants and stock options and the recovery of the useful life of intangibles that affect the reported amounts in the financial statements and accompanying notes. Actual results could differ from those estimates.

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Income Taxes

6 Months Ended

Jun. 30, 2013

Income Taxes [Abstract]

Income Taxes

Note 5. Income Taxes

The Company had NOLs at December 31, 2012 of approximately $79,454,000 for federal tax purposes and approximately $9,478,000 of New Jersey NOL carry forwards remaining after the sale of unused NOL carry forwards, portions of which are currently expiring each year until 2031. In addition, the Company had $2,860,000 of various tax credits that started expiring in December 2012 and will continue to expire through December 2030. The Company may be able to utilize its NOLs to reduce future federal and state income tax liabilities. However, these NOLs are subject to various limitations under Internal Revenue Code (“IRC”) Section 382. IRC Section 382 limits the use of NOLs to the extent there has been an ownership change of more than 50 percentage points. In addition, the NOL carryforwards are subject to examination by the taxing authority and could be adjusted or disallowed due to such exams. Although the Company has not undergone an IRC Section 382 analysis, it is possible that the utilization of the NOLs, could be substantially limited.

The Company and one or more of its subsidiaries files income tax returns in the U.S. Federal jurisdiction, and various state and local jurisdictions. The Company is no longer subject to Federal income tax assessment for years before 2010 for federal and 2009 for New Jersey income tax assessment. However, since the Company has incurred net operating losses in every tax year since inception, all its income tax returns are subject to examination by the Internal Revenue Service for at least three years following the year in which the tax attributes are utilized.

The Company has no tax provision for the three and six month periods ended June 30, 2013 and 2012 due to losses incurred and full valuation allowances recorded against net deferred tax assets.

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Intangible Assets

6 Months Ended

Jun. 30, 2013

Intangible Assets [Abstract]

Intangible Assets

Note 3. Intangible Assets

The following is a summary of intangible assets which consists of licenses and patents:

	Weighted Average Remaining Amortization Period (years)		Cost		Accumulated Amortization		Net Book Value
June 30, 2013
Licenses		7.2	$	462,234	$	265,528	$	196,706
Patents		3.0		1,893,185		1,344,859		548,326
Total		3.8	$	2,355,419	$	1,610,387	$	745,032
December 31, 2012
Licenses		7.7	$	462,234	$	252,019	$	210,215
Patents		3.3		1,893,185		1,247672		645,513
Total		4.2	$	2,355,419	$	1,499,691	$	855,728

Amortization expense was $55,654 and $55,208 for the three months ended June 30, 2013 and 2012, respectively and $110,696 and $101,845 for the six months ended June 30, 2013 and 2012, respectively.

Based on the balance of licenses and patents at June 30, 2013, the expected annual amortization expense for each of the succeeding five years is estimated to be as follows:

	Amortization Expense
2013	$	222,800
2014	$	222,800
2015	$	133,000
2016	$	61,800
2017	$	20,800

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Warrant Liabilities (Details 1) (2013 Warrant [Member], USD $)	3 Months Ended
	Jun. 30, 2013
2013 Warrant [Member]
Summary of fair value measurements using significant unobservable inputs (Level 3)
Beginning Balance for liability
Initial Measurement	4,528,255
Increase in Fair Value	649,576
Balances for liability	$ 5,177,831

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Commitments and Contingencies (Details) (USD $)	Jun. 30, 2013
Summary of future contractual obligations
2013	$ 90,500
2014	201,100
2015	99,900
2016	75,000
2017	75,000
Total	541,500
Research and Development [Member]
Summary of future contractual obligations
2013	37,500
2014	100,000
2015	75,000
2016	75,000
2017	75,000
Total	362,500
Property and Other Leases [Member]
Summary of future contractual obligations
2013	53,000
2014	101,100
2015	24,900
2016
2017
Total	$ 179,000

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Consolidated Balance Sheets (Parenthetical) (USD $)	Jun. 30, 2013	Dec. 31, 2012
Balance Sheets [Abstract]
Preferred stock, shares authorized	350,000	350,000
Preferred stock, shares issued
Preferred stock, shares outstanding
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	19,030,487	11,168,905
Common stock, shares outstanding	19,030,487	11,168,905

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Operating Segments

6 Months Ended

Jun. 30, 2013

Operating Segments [Abstract]

Operating Segments

Note 8. Operating Segments

The Company maintains two active operating segments: BioTherapeutics and Vaccines/BioDefense. Each segment includes an element of overhead costs specifically associated with its operations, with its corporate shared services group responsible for support functions generic to both operating segments.

	Three Months Ended June 30,
	2013			2012
Revenues, Principally from Grants
Vaccines/BioDefense	$	588,496		$	710,237
BioTherapeutics		43,782			52,614
Total	$	632,278		$	762,851
Loss from Operations
Vaccines/BioDefense	$	(1,532,472	)	$	(2,144	)
BioTherapeutics		(530,640	)		(481,817	)
Corporate		(692,772	)		(497,716	)
Total	$	(2,755,884	)	$	(981,677	)
Amortization and Depreciation Expense
Vaccines/BioDefense	$	27,968		$	24,954
BioTherapeutics		28,675			25,892
Corporate		424			562
Total	$	57,067		$	51,408
Other Income /(Expense), Net
Corporate	$	(649,273	)	$	1,799
Stock-Based Compensation
Vaccines/BioDefense	$	11,128		$	2,130
BioTherapeutics		25,905			56,194
Corporate		47,755			59,064
Total	$	84,788		$	117,388

	Six Months Ended June 30,
	2013			2012
Revenues, Principally from Grants
Vaccines/BioDefense	$	1,418,345		$	1,307,842
BioTherapeutics		114,287			102,427
Total	$	1,532,632		$	1,410,269
Income (Loss) from Operations
Vaccines/BioDefense	$	(1,563,467	)	$	(130,509	)
BioTherapeutics		(988,266	)		(1,207,859	)
Corporate		(1,292,048	)		(1,084,299	)
Total	$	(3,843,781	)	$	(2,422,667	)
Amortization and Depreciation Expense
Vaccines/BioDefense	$	55,635		$	52,951
BioTherapeutics		57,070			54,733
Corporate		861			1,069
Total	$	113,566		$	108,753
Other Income /(Expense), Net
Corporate	$	(648,790	)	$	4,034
Stock-Based Compensation
Vaccines/BioDefense	$	22,249		$	4,260
BioTherapeutics		46,941			112,614
Corporate		95,090			118,128
Total	$	164,280		$	235,002

	As of June 30,  2013		As of December 31, 2012
Identifiable Assets
Vaccines/BioDefense	$	470,414	$	628,494
BioTherapeutics		466,498		566,111
Corporate		8,337,083		3,510,499
Total	$	9,273,995	$	4,705,104

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Consolidated Statements of Changes in Shareholders' Equity (Unaudited) (USD $)	Total	Common Stock	Additional Paid-In Capital	Accumulated Deficit
Beginning Balance at Dec. 31, 2012	$ 3,551,106	$ 11,169	$ 125,820,318	$ (122,280,381)
Beginning Balance, Shares at Dec. 31, 2012		11,168,905
Common stock issued in Unit offering	6,216,762	6,774	6,209,988
Common stock issued in Unit offering, Shares		6,773,995
Warrants issued in Unit offering	(4,528,255)		(4,528,255)
Issuance of common stock to collaboration partner	1,500,000	1,034	1,498,966
Issuance of common stock to collaboration partner, Shares		1,034,483
Issuance of common stock to vendors	35,888	28	35,860
Issuance of common stock to vendors, Shares		28,104
Exercise of shares from options	7,500	25	7,475
Exercise of shares from options, shares		25,000
Stock-based compensation expense	164,280		164,280
Net loss	(4,492,571)			(4,492,571)
Balance at Jun. 30, 2013	$ 2,454,710	$ 19,030	$ 129,208,632	$ (126,772,952)
Balance, Shares at Jun. 30, 2013		19,030,487

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Consolidated Balance Sheets (USD $)	Jun. 30, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 8,127,742	$ 3,356,380
Grants receivable	190,111	339,308
Prepaid expenses	194,971	140,693
Total current assets	8,512,824	3,836,381
Office furniture and equipment, net	16,139	12,995
Intangible assets, net	745,032	855,728
Total assets	9,273,995	4,705,104
Current liabilities:
Accounts payable	1,364,841	1,124,503
Warrant liability	5,177,831
Accrued compensation	276,613	29,495
Total current liabilities	6,819,285	1,153,998
Commitments and contingencies
Shareholders' equity:
Preferred stock; 350,000 shares authorized; none issued or outstanding
Common stock, $.001 par value; 50,000,000 shares authorized; 19,030,487 shares and 11,168,905 shares issued and outstanding in 2013 and 2012, respectively	19,030	11,169
Additional paid-in capital	129,208,632	125,820,318
Accumulated deficit	(126,772,952)	(122,280,381)
Total shareholders' equity	2,454,710	3,551,106
Total liabilities and shareholders' equity	$ 9,273,995	$ 4,705,104

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Warrant Liabilities (Details Textual) (Warrant [Member], USD $)	3 Months Ended
	Jun. 30, 2013	Jun. 25, 2013
Warrant [Member]
Warrant Liabilities (Textual)
Amount of initial warrant liability		$ 4,528,255
Non-cash charge or the change in the fair value	$ 649,576
Stock Price	$ 1.06	$ 0.96

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Summary of Significant Accounting Policies (Details Textual) (USD $)	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Summary of Significant Accounting Policies (Textual)
Number of active business segments	2
Quarterly vesting period of stock options issued to directors upon re-election	1 year
Description of stock options issued	Stock options issued to employees vest 25% immediately as of the grant date, then 25% each subsequent year for a period of three years. Stock options vest over each three month period from the date of issuance to the end of the three year period. These options have a ten year life for as long as the individuals remain employees or directors. In general when an employee or director terminates their position the options will expire within three months, unless otherwise extended by the Board.
Period of stock option granted to director and employees	10 years
Percentage of options, vested immediately	25.00%
Percentage of options, vested later till three year	25.00%
Period of expiration of option upon termination of employee or director	3 months
Period of re-measurement of option's price using the Black-Scholes model	3 months
Minimum [Member]
Summary of Significant Accounting Policies (Textual)
Intangible assets, estimated useful life	11 years
Maximum [Member]
Summary of Significant Accounting Policies (Textual)
Intangible assets, estimated useful life	16 years
Option [Member]
Summary of Significant Accounting Policies (Textual)
Shares issuable upon exercise of outstanding derivative instruments	1,447,474	1,596,898
Weighted average exercise price of outstanding derivative instruments	$ 3.16	$ 3.50
Expected dividend yield	0.00%
Expected life of stock option	4 years
Expected volatility rate	167.00%	160.00%
Forfeiture rate	12.00%
Risk free interest rate	1.09%	0.51%
Number of options issued	26,000	100,000
Warrant [Member]
Summary of Significant Accounting Policies (Textual)
Shares issuable upon exercise of outstanding derivative instruments	7,923,838	2,576,341
Weighted average exercise price of outstanding derivative instruments	$ 2.18	$ 4.32

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Operating Segments (Details Textual)	6 Months Ended
	Jun. 30, 2013 Segment
Operating Segments (Textual)
Number of active business segments	2

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Commitments and Contingencies

6 Months Ended

Jun. 30, 2013

Commitments and Contingencies [Abstract]

Commitments and Contingencies

Note 7. Commitments and Contingencies

The Company has commitments of approximately $362,500 as of June 30, 2013 for several licensing agreements with consultants and universities, which upon clinical or commercialization success may require the payment of milestones and/or royalties if and when achieved. However, there can be no assurance that clinical or commercialization success will occur.

On February 7, 2012, the Company entered into a lease agreement through March 31, 2015 for existing office space. The rent for the first 12 months is approximately $8,000 per month, or approximately $18.25 per square foot. This rent increases to approximately $8,310 per month, or approximately $19.00 per square foot, for the remaining 24 months.

In February 2007, the Company’s Board of Directors authorized the issuance of the following number of shares to each of Dr. Schaber and Dr. Brey immediately prior to the completion of a transaction, or series or a combination of related transactions negotiated by its Board of Directors whereby, directly or indirectly, a majority of its capital stock or a majority of its assets are transferred from the Company and/or its stockholders to a third party: 50,000 common shares to Dr. Schaber; and 10,000 common shares to Dr. Brey. The amended agreement with Dr. Schaber includes its obligation to issue such shares if such event occurs.

As a result of the above agreements, the Company has future contractual obligations over the next five years as follows:

Year	Research and Development		Property and Other Leases		Total
2013	$	37,500	$	53,000	$	90,500
2014		100,000		101,100		201,100
2015		75,000		24,900		99,900
2016		75,000				75,000
2017		75,000		-		75,000
Total	$	362,500	$	179,000	$	541,500

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Income Taxes (Details) (USD $)	6 Months Ended
	Jun. 30, 2013	Dec. 31, 2012
Income Taxes (Textual)
Net operating losses		$ 79,454,000
Tax credit, amount		2,860,000
Net operating loss carryforward expiration year	Until 2031.
Period of expiration of various tax credits	Tax credits that started expiring in December 2012 and will continue to expire through December 2030.
New Jersey Tax Jurisdiction [Member]
Income Taxes (Textual)
Net operating losses		$ 9,478,000

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Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2013

Summary of Significant Accounting Policies [Abstract]

Summary of earnings per share

	Three Months Ended June 30,
	2013								2012
	Net Loss			Shares		EPS			Net Loss			Shares		EPS
Basic & Diluted EPS	$	(3,405,157	)		12,259,394	$	(0.28	)	$	(979,878	)		11,124,359	$	(0.09	)

	Six Months Ended June 30,
	2013								2012
	Net Loss			Shares		EPS			Net Loss			Shares		EPS
Basic & Diluted EPS	$	(4,492,571	)		11,720,066	$	(0.38	)	$	(2,418,633	)		11,121,814	$	(0.22	)

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Shareholders' Equity

6 Months Ended

Jun. 30, 2013

Shareholders' Equity [Abstract]

Shareholders' Equity

Note 6. Shareholders’ Equity

Preferred Stock

The Company has 350,000 shares of preferred stock authorized, none of which are issued or outstanding.

Common Stock

During the six months ended June 30, 2013, the Company issued the following shares of common stock:

● On June 25, 2013, the Company completed a public unit offering consisting of one share of common stock and an additional warrant of 0.75 share of common stock.  The Company issued 6,773,995 shares of common stock  which included 5,080,500 five-year warrants at an exercise price of $1.65;

● 1,034,483 shares of common stock issued to Intrexon Corporation in connection with an exclusive channel collaboration;

● 25,000 shares of common stock issued upon the exercise of vested stock options;

● 28,104 shares of common stock issued to vendors as partial consideration for services performed.

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Nature of Business

6 Months Ended

Jun. 30, 2013

Nature of Business [Abstract]

Nature of Business

Note 1. Nature of Business

Basis of Presentation

Soligenix, Inc. (the “Company”, “we” or “us”) is a clinical stage biopharmaceutical company that was incorporated in 1987 and is focused on developing products to treat serious inflammatory diseases and biodefense countermeasures where there remains an unmet medical need. The Company maintains two active business segments: BioTherapeutics and Vaccines/BioDefense. Soligenix’s BioTherapeutics business segment is developing proprietary formulations of oral beclomethasone 17,21-dipropionate (“BDP”) for the prevention/ treatment of gastrointestinal (“GI”) disorders characterized by severe inflammation, including pediatric Crohn’s disease (SGX203), acute radiation enteritis (SGX201) and chronic Graft-versus-Host disease (orBec®), as well as developing our novel innate defense regulator (“IDR”) technology (SGX942) for the treatment of oral mucositis. Our Vaccines/BioDefense business segment includes active development programs for RiVax™, our ricin toxin vaccine, and VeloThrax™, our anthrax vaccine, and OrbeShield™, our gastrointestinal acute radiation syndrome (“GI ARS”) therapeutic. The advanced development of these vaccine programs is currently supported by the Company’s heat stabilization technology, known as ThermoVax™, under existing and on-going grant funding.

The Company generates revenues under four active grants primarily from the National Institutes of Health (“NIH”).

The Company is subject to risks common to companies in the biotechnology industry including, but not limited to, development of new technological innovations, dependence on key personnel, protections of proprietary technology, compliance with FDA regulations, litigation, and product liability. Results for the quarter ended June 30, 2013 are not necessarily indicative of results that may be expected for the full year.

Liquidity

As of June 30, 2013, the Company had cash and cash equivalents of $8,127,742 as compared to $3,356,380 as of December 31, 2012, representing an increase of $4,771,362 or 142%. As of June 30, 2013, the Company had working capital of $6,871,370, which excludes the non-cash warranty liability of $5,177,831, as compared to working capital of $2,682,283 as of December 31, 2012, representing an increase of $4,189,087, or 156%. The increase in cash and working capital was primarily the result of the receipt of net proceeds of $6,216,762 received from our registered public offering partially offset by cash used in operating activities during the six month period.   For the six months ended June 30, 2013, the Company’s cash used in operating activities was $1,446,886 as compared to $1,560,625 for the same period in 2012, representing a decrease of $113,739, or 7%.

Management’s business strategy can be outlined as follows:

● Initiate a Phase 2 clinical trial of SGX942 for the treatment of oral mucositis in head and neck cancer;

● Initiate a Phase 2/3 clinical trial of oral BDP, known as SGX203 for the treatment of pediatric Crohn’s disease;

● Evaluate the effectiveness of oral BDP in other therapeutic indications involving inflammatory conditions of the GI tract such as prevention of acute radiation enteritis, prevention of acute radiation syndrome, and treatment of chronic GI GVHD;

● Develop RiVax™ and VeloThrax™ in combination with our proprietary vaccine heat stabilization technology known as ThermoVax™ to develop new heat stable vaccines in biodefense and infectious diseases with the potential to collaborate and/or partner with other companies in these areas;

● Continue to apply for and secure additional government funding for each of our BioTherapeutics and Vaccines/BioDefense programs through grants, contracts and/or procurements;

● Acquire or in-license new clinical-stage compounds for development; and

● Explore other business development and acquisition strategies, an example of which is the recently announced collaboration with Intrexon Corporation.

Based on the Company’s current rate of cash outflows, cash on hand, proceeds from grant programs and proceeds from the State of New Jersey Technology Business Tax Certificate Transfer Program, management believes that its current cash will be sufficient to meet the anticipated cash needs for working capital and capital expenditures into the first quarter of 2015.

The Company’s plans with respect to its liquidity management include, but are not limited to, the following:

● The Company has approximately $2.3 million in active grant funding still available to support its associated research programs through 2014. The Company plans to submit additional grant applications for further support of its programs with various funding agencies.

● The Company has continued to use equity instruments to provide a portion of the compensation due to vendors and collaboration partners and expects to continue to do so for the foreseeable future.

● The Company will pursue sale of Net Operating Losses (“NOLs”) in the State of New Jersey, pursuant to its Technology Business Tax Certificate Transfer Program. Based on the receipt of $521,458 in proceeds pursuant to NOL sales in 2012, the Company expects to participate in the program during 2013 and beyond; and

● The Company may seek additional capital in the private and/or public equity markets to continue its operations, respond to competitive pressures, develop new products and services, and to support new strategic partnerships. The Company evaluates equity financing opportunities on an ongoing basis and may execute them when appropriate. However, there can be no assurances that the Company can consummate such a transaction, or consummate a transaction at favorable pricing.

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Commitments and Contingencies (Detail Textual) (USD $)	0 Months Ended		1 Months Ended
	Feb. 07, 2012	Jun. 30, 2013	Feb. 28, 2007 Dr. Schaber [Member]	Feb. 28, 2007 Dr. Brey [Member]
Commitments and Contingencies (Textual)
Number of common shares transferred to third party			50,000	10,000
Commitments related to agreements		$ 362,500
Monthly rent amount before increment	8,000
Monthly rent amount before increment, per square foot	18.25
Monthly rent amount after increment	8,310
Monthly rent amount after increment, per square foot	$ 19.00
Number of months after that rent increases	12 months
Number of remaining months for which increased rent paid	24 months

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Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2013

Commitments and Contingencies [Abstract]

Summary of future contractual obligations

Year	Research and Development		Property and Other Leases		Total
2013	$	37,500	$	53,000	$	90,500
2014		100,000		101,100		201,100
2015		75,000		24,900		99,900
2016		75,000				75,000
2017		75,000		-		75,000
Total	$	362,500	$	179,000	$	541,500

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Summary of Significant Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2013

Summary of Significant Accounting Policies [Abstract]

Principles of Consolidation

Principles of Consolidation

The consolidated financial statements include Soligenix, Inc., and its wholly and majority owned subsidiaries. All significant intercompany accounts and transactions have been eliminated as a result of consolidation.

Operating Segments

Operating Segments

Operating segments are defined as components of an enterprise about which separate financial information is available that is evaluated on a regular basis by the chief operating decision maker, or decision making group, in deciding how to allocate resources to an individual segment and in assessing the performance of the segment. The Company divides its operations into two operating segments: BioTherapeutics and Vaccines/BioDefense.

Grants Receivable

Grants Receivable

Grants receivable consist of unbilled amounts due from various grants from the NIH for costs incurred under reimbursement contracts prior to the period end. The amounts were billed to the NIH in the month subsequent to period end and collected shortly thereafter. Accordingly, no allowance for doubtful amounts has been established. If amounts become uncollectible, they are charged to operations.

Intangible Assets

Intangible Assets

One of the most significant estimates or judgments that the Company makes is whether to capitalize or expense patent and license costs. The Company makes this judgment based on whether the technology has alternative future uses, as defined in Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 730, Research and Development. Based on this consideration, the Company capitalizes payments made to legal firms that are engaged in filing and protecting rights to intellectual property and rights for its current products in both the domestic and international markets. The Company believes that patent rights are one of its most valuable assets. Patents and patent applications are a key component of intellectual property, especially in the early stage of product development, as their purchase and maintenance gives the Company access to key product development rights from Soligenix’s academic and industrial partners. These rights can also be sold or sub-licensed as part of its strategy to partner its products at each stage of development as the intangible assets have alternative future use. The legal costs incurred for these patents consist of work associated with filing new patents and perhaps extending the lives of the patents. The Company capitalizes such costs and amortizes intangibles over their expected useful life – generally a period of 11 to 16 years.

The Company did not incur any capitalizable patent related costs during the six months ended June 30, 2013 and 2012.

Impairment of Long-Lived Assets

Impairment of Long-Lived Assets

Office furniture, equipment and intangible assets are evaluated and reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. The Company recognizes impairment of long-lived assets in the event the net book value of such assets exceeds the estimated future undiscounted cash flows attributable to such assets. If the sum of the expected undiscounted cash flows is less than the carrying value of the related asset or group of assets, a loss is recognized for the difference between the fair value and the carrying value of the related asset or group of assets. Such analyses necessarily involve significant judgment.

The Company did not record any impairment of long-lived assets for the six months ended June 30, 2013 or 2012.

Fair Value of Financial Instruments

Fair Value of Financial Instruments

FASB ASC 820 — Fair Value Measurements and Disclosures, defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. FASB ASC 820 requires disclosures about the fair value of all financial instruments, whether or not recognized, for financial statement purposes. Disclosures about the fair value of financial instruments are based on pertinent information available to us on June 30, 2013. Accordingly, the estimates presented in these financial statements are not necessarily indicative of the amounts that could be realized on disposition of the financial instruments.

FASB ASC 820 specifies a hierarchy of valuation techniques based on whether the inputs to those valuation techniques are observable or unobservable. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect market assumptions. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurement) and the lowest priority to unobservable inputs (Level 3 measurement).

The three levels of the fair value hierarchy are as follows:

● Level 1 — Quoted prices in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date. Level 1 primarily consists of financial instruments whose value is based on quoted market prices such as exchange-traded instruments and listed equities.

● Level 2 — Inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly. Level 2includes financial instruments that are valued using models or other valuation methodologies. These models consider various assumptions, including volatility factors, current market prices and contractual prices for the underlying financial instruments. Substantially all of these assumptions are observable in the marketplace, can be derived from observable data or are supported by observable levels at which transactions are executed in the marketplace.

● Level 3 — Unobservable inputs for the asset or liability. Financial instruments are considered Level 3 when their fair values are determined using pricing models, discounted cash flows or similar techniques and at least one significant model assumption or input is unobservable.

The carrying amounts reported in the consolidated balance sheet for cash and cash equivalents, accounts receivable, accounts payable and accrued expenses approximate their fair value based on the short-term maturity of these instruments.  The Company recognizes all derivative financial instruments as assets or liabilities in the financial statements and measures them at fair value with changes in fair value reflected as current period income or loss unless the derivatives qualify as hedges. As a result, certain warrants issued in connection with the offering were accounted for as derivatives.  See Note 4, Warrant Liabilities.

Revenue Recognition

Revenue Recognition

Principally the Company’s revenues are generated from NIH grants and revenues from licensing activities and the achievement of licensing milestones (in prior periods). Recording of revenue is applied in accordance with FASB ASC 605, Revenue Recognition, ASC 605-25 and/or Accounting Standard Update, ASU, 2009-13, Revenue Recognition – Multiple Element Arrangements. The revenue from NIH grants is based upon subcontractor costs and internal costs incurred that are specifically covered by the grants, plus a facilities and administrative rate that provides funding for overhead expenses. These revenues are recognized when expenses have been incurred by subcontractors or when the Company incurs internal expenses that are related to the grant.

Research and Development Costs

Research and Development Costs

Research and development costs are charged to expense when incurred in accordance with FASB ASC 730, Research and Development. Research and development includes costs such as clinical trial expenses, contracted research and license agreement fees with no alternative future use, supplies and materials, salaries stock based compensation, employee benefits, equipment depreciation and allocation of various corporate costs. Purchased in-process research and development expense represents the value assigned or paid for acquired research and development for which there is no alternative future use as of the date of acquisition.

Stock-Based Compensation

Stock-Based Compensation

Stock options are issued with an exercise price equal to the market price on the date of issuance. Stock options issued to directors upon re-election vest quarterly for a period of one year (new director issuances are fully vested upon issuance). Stock options issued to employees vest 25% immediately as of the grant date, then 25% each subsequent year for a period of three years. Stock options vest over each three month period from the date of issuance to the end of the three year period. These options have a ten year life for as long as the individuals remain employees or directors. In general when an employee or director terminates their position the options will expire within three months, unless otherwise extended by the Board.

Stock compensation expense for options, warrants and shares of common stock granted to non-employees has been determined in accordance with FASB ASC 718, Stock Compensation, and FASB ASC 505-50, Equity-Based Payments to Non-Employees, and represents the fair value of the consideration received, or the fair value of the equity instruments issued, whichever may be more reliably measured. For options that vest over future periods, the fair value of options granted to non-employee directors is amortized as the options vest.

The Company issued 26,000 and 100,000 options during the six months ending June 30, 2013 and 2012, respectively.

The fair value of options granted are estimated using the Black-Scholes option pricing model utilizing the following assumptions and are amortized ratably over the option vesting periods, which approximates the service period:

● a dividend yield of 0%;

● an expected life of 4 years;

● volatility of 167% and 160% for 2013 and 2012, respectively;

● forfeitures at rate of 12%; and

● risk-free interest rates of 1.09% and 0.51% in 2013 and 2012, respectively.

Income Taxes

Income Taxes

Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. A valuation allowance is established when it is more likely than not that all or a portion of a deferred tax asset will not be realized. A review of all available positive and negative evidence is considered, including the Company’s current and past performance, the market environment in which the Company operates, the utilization of past tax credits, and the length of carryback and carryforward periods. Deferred tax assets and liabilities are measured utilizing tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. No current or deferred income taxes have been provided through June 30, 2013 due to the net operating losses incurred by the Company since its inception. The Company recognizes accrued interest and penalties associated with uncertain tax positions, if any, as part of income tax expense. There were no tax related interest and penalties recorded for 2013 and 2012. Additionally, the Company has not recorded an asset for unrecognized tax benefits or a liability for uncertain tax positions at June 30, 2013 or 2012. Tax years beginning in 2010 for federal purposes are generally subject to examination by the taxing authorities, although net operating losses from those years are subject to examinations and adjustments for at least three years following the year in which the tax attributes are utilized.

Earnings Per Share

Earnings Per Share

Basic earnings per share (“EPS”) excludes dilution and is computed by dividing income (loss) available to common stockholders by the weighted-average number of common shares outstanding for the period, Diluted EPS reflects the potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock or resulted in the issuance of common stock that shared in the earnings of the entity. Since there is a significant number of options and warrants outstanding, fluctuations in the actual market price can have a variety of results for each period presented.

	Three Months Ended June 30,
	2013								2012
	Net Loss			Shares		EPS			Net Loss			Shares		EPS
Basic & Diluted EPS	$	(3,405,157	)		12,259,394	$	(0.28	)	$	(979,878	)		11,124,359	$	(0.09	)

	Six Months Ended June 30,
	2013								2012
	Net Loss			Shares		EPS			Net Loss			Shares		EPS
Basic & Diluted EPS	$	(4,492,571	)		11,720,066	$	(0.38	)	$	(2,418,633	)		11,121,814	$	(0.22	)

Shares issuable upon the exercise of options and warrants outstanding at June 30, 2013 and 2012 were 1,447,474 and 1,596,898 shares issuable upon the exercise of outstanding stock options, and 7,923,838 and 2,576,341 shares issuable upon the exercise of outstanding warrants, respectively. The weighted average exercise price of the Company’s stock options and warrants outstanding at June 30, 2013 were $3.16 and $2.18 per share, respectively. The weighted average exercise price of the Company’s stock options and warrants outstanding at June 30, 2012 were $3.50 and $4.32 per share, respectively. No options or warrants were included in the 2013 and 2012 computations of diluted earnings per share because their effect would be anti-dilutive as a result of losses in each of those years.

Use of Estimates and Assumptions

Use of Estimates and Assumptions

The preparation of financial statements in conformity with accounting principles generally accepted in the U.S. requires management to make estimates and assumptions such as the fair value of warrants and stock options and the recovery of the useful life of intangibles that affect the reported amounts in the financial statements and accompanying notes. Actual results could differ from those estimates.

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Summary of Significant Accounting Policies (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Summary of earnings per share
Basic & Diluted EPS, Net Loss	$ (3,405,157)	$ (979,878)	$ (4,492,571)	$ (2,418,633)
Basic & Diluted EPS, Shares	12,259,394	11,124,359	11,720,066	11,121,814
Basic & Diluted EPS, EPS	$ (0.28)	$ (0.09)	$ (0.38)	$ (0.22)

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Operating Segments (Tables)

6 Months Ended

Jun. 30, 2013

Operating Segments [Abstract]

Summary of segmental information

	Three Months Ended June 30,
	2013			2012
Revenues, Principally from Grants
Vaccines/BioDefense	$	588,496		$	710,237
BioTherapeutics		43,782			52,614
Total	$	632,278		$	762,851
Loss from Operations
Vaccines/BioDefense	$	(1,532,472	)	$	(2,144	)
BioTherapeutics		(530,640	)		(481,817	)
Corporate		(692,772	)		(497,716	)
Total	$	(2,755,884	)	$	(981,677	)
Amortization and Depreciation Expense
Vaccines/BioDefense	$	27,968		$	24,954
BioTherapeutics		28,675			25,892
Corporate		424			562
Total	$	57,067		$	51,408
Other Income /(Expense), Net
Corporate	$	(649,273	)	$	1,799
Stock-Based Compensation
Vaccines/BioDefense	$	11,128		$	2,130
BioTherapeutics		25,905			56,194
Corporate		47,755			59,064
Total	$	84,788		$	117,388

	Six Months Ended June 30,
	2013			2012
Revenues, Principally from Grants
Vaccines/BioDefense	$	1,418,345		$	1,307,842
BioTherapeutics		114,287			102,427
Total	$	1,532,632		$	1,410,269
Income (Loss) from Operations
Vaccines/BioDefense	$	(1,563,467	)	$	(130,509	)
BioTherapeutics		(988,266	)		(1,207,859	)
Corporate		(1,292,048	)		(1,084,299	)
Total	$	(3,843,781	)	$	(2,422,667	)
Amortization and Depreciation Expense
Vaccines/BioDefense	$	55,635		$	52,951
BioTherapeutics		57,070			54,733
Corporate		861			1,069
Total	$	113,566		$	108,753
Other Income /(Expense), Net
Corporate	$	(648,790	)	$	4,034
Stock-Based Compensation
Vaccines/BioDefense	$	22,249		$	4,260
BioTherapeutics		46,941			112,614
Corporate		95,090			118,128
Total	$	164,280		$	235,002

	As of June 30,  2013		As of December 31, 2012
Identifiable Assets
Vaccines/BioDefense	$	470,414	$	628,494
BioTherapeutics		466,498		566,111
Corporate		8,337,083		3,510,499
Total	$	9,273,995	$	4,705,104

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Document and Entity Information	6 Months Ended
	Jun. 30, 2013	Aug. 07, 2013
Document and Entity Information [Abstract]
Entity Registrant Name	SOLIGENIX, INC.
Entity Central Index Key	0000812796
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Type	10-Q
Document Period End Date	Jun. 30, 2013
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q2
Entity Filer Category	Smaller Reporting Company
Entity Common Stock, Shares Outstanding		19,030,487

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Nature of Business (Details) (USD $)	6 Months Ended		12 Months Ended
	Jun. 30, 2013 Grant Segment	Jun. 30, 2012	Dec. 31, 2012	Dec. 31, 2011
Nature of Business (Textual)
Number of active business segments	2
Number of active grants	4
Cash and cash equivalents	$ 8,127,742	$ 4,431,288	$ 3,356,380	$ 5,996,668
Net decrease in cash and cash equivalents	4,771,362	(1,565,380)
Percentage decrease in cash and cash equivalents	142.00%
Working capital, carrying value	6,871,370		2,682,283
Warrant liability	5,177,831
Increase in working capital	4,189,087
Percentage increase in working capital	156.00%
Net proceeds received from public offering	6,216,762
Net cash used in operating activities	(1,446,886)	(1,560,625)
Decrease in net cash used in provided by operating activities	113,739
Percentage decrease in net cash used in provided by operating activities	7.00%
Active grant funding available	2,300,000
Proceeds from net operating losses			$ 521,458