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 MARCH 31, 2015

OR

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

COMMISSION FILE NUMBER 001-36279

CARA THERAPEUTICS, INC.

(Exact name of registrant as specified in its charter)

Delaware	75-3175693
(State or other jurisdiction of	(I.R.S. Employer
incorporation or organization)	Identification No.)

1 Parrott Drive

Shelton, Connecticut 06484

(Address of registrant’s principal executive offices)

Registrant’s telephone number, including area code: (203) 567-1500

Indicate by check mark whether the registrant: (1) has 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.    x  Yes    ¨  No.

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 (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    x  Yes    ¨  No.

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 “large accelerated filer”, “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

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

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

The number of outstanding shares of the registrant’s common stock, par value $0.001 per share, as of May 8, 2015 was: 22,824,919.

CARA THERAPEUTICS, INC.

INDEX TO FORM 10-Q

FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2015

		PAGE NUMBER
Item 1.	Financial Statements (Unaudited):
	Condensed Balance Sheets as of March 31, 2015 and December 31, 2014		1
	Condensed Statements of Operations for the Three Months Ended March 31, 2015 and 2014		2
	Condensed Statements of Convertible Preferred Stock and Stockholders’ (Deficit) Equity for the Three Months Ended March 31, 2015 and 2014		3
	Condensed Statements of Cash Flows for the Three Months Ended March 31, 2015 and 2014		4
	Notes to Condensed Financial Statements		5
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations		12
Item 3.	Quantitative and Qualitative Disclosures About Market Risk		21
Item 4.	Controls and Procedures		21
PART II – OTHER INFORMATION
Item 1.	Legal Proceedings		22
Item 1A	Risk Factors		22
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds		22
Item 3.	Defaults Upon Senior Securities		22
Item 4.	Mine Safety Disclosures		22
Item 5.	Other Information		22
Item 6.	Exhibits		23
	SIGNATURES		24

PART I

FINANCIAL INFORMATION

Item 1.   Financial Statements.

CARA THERAPEUTICS, INC.

CONDENSED BALANCE SHEETS

(amounts in thousands, excluding share and per share data)

(unaudited)

	March 31, 2015			December 31, 2014
Assets
Current assets:
Cash and cash equivalents	$	47,422		$	52,663
Income tax receivable		215			200
Prepaid expenses		1,420			287
Total current assets		49,057			53,150
Property and equipment, net		1,897			2,084
Restricted cash		700			700
Total assets	$	51,654		$	55,934
Liabilities and stockholders’ equity
Current liabilities:
Accounts payable and accrued expenses	$	2,464		$	1,946
Deferred revenue		963			1,452
Total current liabilities		3,427			3,398
Deferred lease obligation		803			874
Commitments and contingencies (Note 10)		—			—
Stockholders’ equity:
Preferred stock; $0.001 par value; 5,000,000 shares authorized at March 31, 2015 and December 31, 2014, zero shares issued and outstanding at March 31, 2015 and December 31, 2014		—			—
Common stock; $0.001 par value; 100,000,000 shares authorized at March 31, 2015 and December 31, 2014, 22,824,919 shares and 22,802,039 shares issued and outstanding at March 31, 2015 and December 31, 2014, respectively		23			23
Additional paid-in capital		132,291			131,840
Accumulated deficit		(84,890	)		(80,201	)
Total stockholders’ equity		47,424			51,662
Total liabilities and stockholders’ equity	$	51,654		$	55,934

See Notes to Condensed Financial Statements.

1

CARA THERAPEUTICS, INC.

CONDENSED STATEMENTS OF OPERATIONS

(amounts in thousands, excluding share and per share data)

(unaudited)

	Three Months Ended
	March 31, 2015			March 31, 2014
Revenue:
Collaborative revenue	$	489		$	151
Clinical compound revenue		—			27
Total revenue		489			178
Operating expenses:
Research and development		3,385			2,201
General and administrative		1,822			1,398
Total operating expenses		5,207			3,599
Operating loss		(4,718	)		(3,421	)
Interest income		14			22
Loss before benefit from income taxes		(4,704	)		(3,399	)
Benefit from income taxes		15			16
Net loss	$	(4,689	)	$	(3,383	)
Net loss per share:
Basic and Diluted	$	(0.21	)	$	(0.22	)
Weighted average shares:
Basic and Diluted		22,808,479			15,654,079

See Notes to Condensed Financial Statements.

2

CARA THERAPEUTICS, INC.

CONDENSED STATEMENTS OF CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS’ (DEFICIT) EQUITY

(amounts in thousands except share and per share data)

(unaudited)

	Common Stock				Additional Paid-in Capital		Accumulated Deficit			Total Stockholders’ (Deficit) Equity
													Convertible Preferred Stock
	Shares		Amount										Shares			Amount
Balance at December 31, 2013		4,288,243	$	4	$	8,377	$	(62,456	)	$	(54,075	)		29,186,929		$	65,586
Preferred stock converted to common shares		12,554,171		13		65,573		—			65,586			(29,186,929	)		(65,586	)
Sale of common stock in initial public offering ($11.00 per share), net of underwriting discounts and commissions and other offering expenses of $7,003		5,750,000		6		56,241		—			56,247			—			—
Stock-based compensation expense		—		—		353		—			353			—			—
Net loss		—		—		—		(3,383	)		(3,383	)		—			—
Balance at March 31, 2014		22,592,414	$	23	$	130,544	$	(65,839	)	$	64,728			—		$	—
	Common Stock				Additional Paid-in Capital		Accumulated Deficit			Total Stockholders’ Equity			Convertible Preferred Stock
	Shares		Amount										Shares			Amount
Balance at December 31, 2014		22,802,039	$	23	$	131,840	$	(80,201	)	$	51,662			—		$	—
Stock-based compensation expense		—		—		445		—			445			—			—
Shares issued upon exercise of stock options		22,880		—		6		—			6			—			—
Net loss		—		—		—		(4,689	)		(4,689	)		—			—
Balance at March 31, 2015		22,824,919	$	23	$	132,291	$	(84,890	)	$	47,424			—		$	—

See Notes to Condensed Financial Statements.

3

CARA THERAPEUTICS, INC.

CONDENSED STATEMENTS OF CASH FLOWS

(amounts in thousands)

(unaudited)

	Three Months Ended
	March 31, 2015			March 31, 2014
Operating activities
Net loss	$	(4,689	)	$	(3,383	)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation expense		445			353
Depreciation and amortization		193			197
Deferred rent costs		(71	)		(65	)
Changes in operating assets and liabilities:
Income tax receivable		(15	)		15
Prepaid expenses		(733	)		(377	)
Accounts payable and accrued expenses		118			227
Deferred revenue		(489	)		(58	)
Net cash used in operating activities		(5,241	)		(3,091	)
Investing activities
Purchases of property and equipment		(6	)		—
Net cash used in investing activities		(6	)		—
Financing activities
Proceeds from initial public offering, net of issuance costs		—			57,772
Proceeds from the exercise of stock options		6			—
Net cash provided by financing activities		6			57,772
Net cash (decrease) increase for the period		(5,241	)		54,681
Cash and cash equivalents at beginning of period		52,663			12,357
Cash and cash equivalents at end of period	$	47,422		$	67,038
Noncash financing activities
Conversion of convertible preferred stock to common stock	$	—		$	65,586
Reclassification of prepaid IPO costs paid in 2013		—			1,465
Unpaid IPO issuance costs		—			60

See Notes to Condensed Financial Statements.

4

CARA THERAPEUTICS, INC.

NOTES TO CONDENSED FINANCIAL STATEMENTS

(amounts in thousands, except share and per share data)

(unaudited)

1. Business

Cara Therapeutics, Inc. (the “Company”, “we”, “our” or “us”) is a clinical-stage biopharmaceutical corporation formed on July 2, 2004. The Company is focused on developing and commercializing new chemical entities designed to alleviate pain and pruritus by selectively targeting kappa opioid receptors. The Company’s primary activities to date have been organizing and staffing the company, developing its product candidates, including conducting preclinical studies and clinical trials of CR845-based product candidates and raising capital.

As of March 31, 2015, the Company has raised aggregate net proceeds of approximately $129,600 from several rounds of equity financing, including its initial public offering, and the issuance of debt. In addition, the Company received $30,100 under its license agreements for CR845, primarily with Maruishi Pharmaceutical Co. Ltd. (“Maruishi”) and Chong Kun Dang Pharmaceutical Corp. (“CKD”), and an earlier product candidate for which development efforts ceased in 2007. Included in those aforementioned payments pursuant to license agreements, in April 2013, the Company received $15,000 as an upfront payment, and in August 2014, the Company received an additional $480 related to achievement of a milestone in connection with the license of rights to CR845 in Japan to Maruishi. In 2012, the Company received aggregate upfront and milestone payments of $1,190 pursuant to a license agreement with CKD, in connection with the license of rights to CR845 in South Korea. The Company has incurred substantial losses and negative cash flows from operating activities in nearly every fiscal period since inception, and expects operating losses and negative cash flows to continue into the foreseeable future.

As of March 31, 2015, the Company has unrestricted cash and cash equivalents of $47,422 and an accumulated deficit of $84,890. The Company had net cash used in operating activities of $5,241 and $3,091 for the three months ended March 31, 2015 and 2014, respectively. The Company expects that cash and cash equivalents at March 31, 2015 will be sufficient to fund its operations beyond one year. The Company recognized net losses of $4,689 and $3,383 for the three months ended March 31, 2015 and 2014, respectively, and expects to incur additional losses for the full year ending December 31, 2015.

The Company is subject to risks common to other life science companies including, but not limited to, uncertainty of product development and commercialization, lack of marketing and sales history, development by its competitors of new technological innovations, dependence on key personnel, market acceptance of products, product liability protection of proprietary technology, ability to raise additional financing, and compliance with Food and Drug Administration (“FDA”) and other government regulations. If the Company does not successfully commercialize any of its product candidates, it will be unable to generate recurring product revenue or achieve profitability.

2. Basis of Presentation

The unaudited interim condensed financial statements included herein have been prepared pursuant to the rules and regulations of the SEC. Accordingly, they do not include all information and disclosures necessary for a presentation of the Company’s financial position, results of operations and cash flows in conformity with generally accepted accounting principles in the United States of America (“GAAP”). In the opinion of management, these unaudited interim financial statements reflect all adjustments, consisting primarily of normal recurring accruals, necessary for a fair presentation of results for the periods presented. The results of operations for interim periods are not necessarily indicative of the results for the full year. Certain information and footnote disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted from this report, as is permitted by SEC rules and regulations; however, the Company believes that the disclosures are adequate to make the information presented not misleading. The condensed balance sheet data for the year ended December 31, 2014 were derived from audited financial statements, but do not include all disclosures required by GAAP. These unaudited interim condensed financial statements should be read in conjunction with the audited financial statements and accompanying notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014.

Use of Estimates

The preparation of financial statements in conformity with GAAP requires the Company to make estimates and assumptions that affect the reported amounts of assets and liabilities, and disclosure of contingent assets and liabilities, as of the date of the financial statements as well as the reported amounts of revenues and expenses during the reporting period.

5

CARA THERAPEUTICS, INC.

NOTES TO CONDENSED FINANCIAL STATEMENTS

(amounts in thousands, except share and per share data)

(unaudited)

Actual results could differ materially from the Company’s estimates and assumptions. Significant estimates include useful lives of fixed assets, the periods over which certain revenues will be recognized, including licensing and collaborative revenue recognized from non-refundable up-front and milestone payments, the determination of prepaid research and development clinical costs and accrued research projects, the amount of non-cash compensation costs related to share-based payments to employees and non-employees and the periods over which those costs are expensed and the likelihood of realization of deferred tax assets.

Significant Accounting Policies

There have been no material changes to the significant accounting policies previously disclosed in Note 2 to the Financial Statements in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014.

Recent Accounting Pronouncements

In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update 2014-09, Revenue from Contracts with Customers (Topic 606) (“ASU 2014-09”). On April 29, 2015, the FASB proposed to defer the effective date of ASU 2015-09 for the Company from January 1, 2017 to January 1, 2018. Earlier application by the Company would be permitted only as of January 1, 2017, including interim reporting periods within the year ending December 31, 2017. Comments are due by May 29, 2015.

During April 2015, the Financial Accounting Standards Board issued Accounting Standards Update 2015-03 (“ASU 2015-03”) “Interest—Imputation of Interest (Subtopic 835-30) Simplifying the Presentation of Debt Issuance Costs”, which simplifies the presentation of debt issuance costs by requiring debt issuance costs (e.g., legal fees, printing costs) to be presented as a deduction from the corresponding debt liability rather than as assets, as under current guidance. ASU 2015-03 will make the presentation of debt issuance costs consistent with the presentation of debt discounts or premiums resulting from the difference between the net proceeds received upon debt issuance and the amount payable at maturity, which is presented as a direct deduction from or an addition to the face amount of the debt. ASU 2015-03 is effective for the Company for financial statements issued for periods beginning on January 1, 2016, including interim periods. Early adoption of ASU 2015-03 is permitted for financial statements that have not been previously issued. If the Company issues debt before January 1, 2016, it will decide whether to early adopt ASU 2015-03. Upon adoption, the Company must apply the new guidance retrospectively to all prior periods presented in the financial statements. The Company does not expect the adoption of ASU 2015-03 to have a material effect on its financial position, results of operations or cash flows.

Reclassifications

Certain revenue amounting to $27 within the Statement of Operations for the three months ended March 31, 2014 has been reclassified from Collaborative revenue to Clinical compound revenue to conform to the current year presentation.

3. Fair Value Measurements

As of March 31, 2015 and December 31, 2014, the Company’s financial instruments consisted of cash and cash equivalents, restricted cash, accounts payable and accrued liabilities. The carrying amount of each of those financial instruments is generally considered to be representative of their respective fair values because of the short-term nature of those instruments.

Current accounting guidance defines fair value, establishes a framework for measuring fair value in accordance with Accounting Standards Codification (“ASC”) section 820, and requires certain disclosures about fair value measurements.

The valuation techniques included in the guidance are based on observable and unobservable inputs. Observable inputs reflect readily obtainable data from independent sources, while unobservable inputs reflect market assumptions and are classified into the following fair value hierarchy:

• Level 1 – Observable inputs – quoted prices in active markets for identical assets and liabilities.

• Level 2 – Observable inputs other than the quoted prices in active markets for identical assets and liabilities – such as quoted prices for similar instruments, quoted prices for identical or similar instruments in inactive markets, or other inputs that are observable or can be corroborated by observable market data.

6

CARA THERAPEUTICS, INC.

NOTES TO CONDENSED FINANCIAL STATEMENTS

(amounts in thousands, except share and per share data)

(unaudited)

• Level 3 – Unobservable inputs – includes amounts derived from valuation models where one or more significant inputs are unobservable and require the Company to develop relevant assumptions.

The following table summarizes the financial assets measured at fair value on a recurring basis as of March 31, 2015 and December 31, 2014.

	March 31, 2015		December 31, 2014
	Level 1		Level 1
Financial assets
Cash equivalents:
Money market savings account	$	46,962	$	52,663
Restricted cash:
Bank certificate of deposit		700		700
Total	$	47,662	$	53,363

4. Prepaid expenses

As of March 31, 2015, prepaid expenses were $1,420, consisting of $619 of prepaid insurance, $741 of research and development (“R&D”) clinical costs and $60 of other costs. As of December 31, 2014, prepaid expenses were $287, consisting of $92 of prepaid insurance, $177 of prepaid R&D clinical costs and $18 of other costs.

5. Collaborations

Maruishi Pharmaceutical Co., Ltd.

In April 2013, the Company entered into a license agreement with Maruishi under which the Company granted Maruishi an exclusive license to develop, manufacture, and commercialize drug products containing CR845 for acute pain and uremic pruritus in Japan. The Company and Maruishi are responsible to use commercially reasonable efforts, at their own expense, to develop, obtain regulatory approval for and commercialize CR845 in the United States and Japan, respectively. In addition, the Company will provide Maruishi specific clinical development services for CR845 used in Maruishi’s field of use.

The Company has identified two deliverables under ASC 605-25, Revenue Recognition—Multiple Element Arrangements: (1) the license; and (2) the R&D services specific to the uremic pruritus field of use. The Company has determined that the license has standalone value because Maruishi has the right to sublicense and manufacture CR845 in Japan. The second deliverable is the R&D services, which also have standalone value as similar services are sold separately by other vendors. Since both the license and the R&D services separability criteria have been met, they are being accounted for as separate units of accounting at the outset of the arrangement.

Along with the R&D services performed by the Company for Maruishi, the Company supplies Maruishi with CR845 clinical material as an accommodation. The Company had previously entered into manufacturing and service agreements with third parties to manufacture CR845. Payments made by the Company to third parties based on firm and fixed commitments by Maruishi to purchase CR845 from the Company are capitalized as prepaid expense. During the manufacturing process, title and risk of loss remains with the third party until the Company has paid in full for the material.

Once the Company has title to the CR845 and has delivered it to Maruishi, prepaid expense related to that CR845 is reduced with an offset to R&D expense. At that time, Maruishi reimburses the Company for its external and internal costs for purchasing CR845 and processing the sale to Maruishi and the Company recognizes clinical compound revenue for the reimbursement amount. Deposits received from Maruishi prior to delivery of CR845 are recorded as deferred revenue.

7

CARA THERAPEUTICS, INC.

NOTES TO CONDENSED FINANCIAL STATEMENTS

(amounts in thousands, except share and per share data)

(unaudited)

Under the terms of the license agreement, the Company is also entitled to receive aggregate milestone payments of $8,000 for events performed by Maruishi in Japan and $2,500 for events performed by the Company in the U.S. At the time of execution of this license agreement, there was significant uncertainty as to whether the stated milestones would be achieved. In conjunction with this uncertainty, the Company has determined that the milestones achieved in the U.S. are substantive in nature as they are commensurate with the enhancement of value of the delivered license as they relate to clinical success and advancement within the FDA drug development platform. The Company will account for those milestone payments under ASC 605 Revenue Recognition – Milestone Method. However, the milestones achieved by Maruishi in Japan are not substantive and will be accounted for as contingent consideration.

The next potential milestone that the Company could be entitled to receive under the Maruishi license agreement will be a clinical development milestone for initiation of a Phase 1 clinical trial in Japan for a certain indication. If achieved, this milestone will result in a $2,000 payment being due to the Company.

As of March 31, 2015 and December 31, 2014, the Company had $963 and $1,452, respectively, of deferred revenue pursuant to the R&D services deliverable under the license agreement with Maruishi.

During the three months ended March 31, 2015 and 2014, the Company recognized $489 and $151, respectively, of collaborative revenue from the amortization of deferred revenue arising from the portion of the upfront payment received pursuant to the license agreement with Maruishi that was allocated to the R&D services deliverable and $0 and $27, respectively, of clinical compound revenue from the sale of CR845 clinical compound to Maruishi.

The Company incurred clinical trial costs related to the R&D services deliverable of $599 and $398 during the three months ended March 31, 2015 and 2014, respectively.

6. Accounts Payable and Accrued Expenses

Accounts payable and accrued expenses consist of the following:

	March 31, 2015		December 31, 2014
Accounts payable	$	938	$	515
Accrued research projects		841		549
Accrued professional fees		278		266
Accrued compensation and benefits		350		504
Accrued other		57		112
Total	$	2,464	$	1,946

7. Net Loss Per Share

The Company computes basic net income (loss) per share by dividing net income (loss) by the weighted average number of shares of common stock outstanding. Diluted net income per share includes the potential dilutive effect of common stock equivalents as if such securities were converted or exercised during the period, when the effect is dilutive. Common stock equivalents include convertible preferred stock, and outstanding stock options and stock warrants, which are included using the treasury stock method when dilutive. The computation of diluted net loss per share does not include common stock equivalents since such inclusion would be anti-dilutive. For the three months ended March 31, 2015 and 2014, the Company excluded the effects of potentially dilutive shares that were outstanding during those respective periods from the denominator as their inclusion would be anti-dilutive due to the Company’s net losses during those periods.

8

CARA THERAPEUTICS, INC.

NOTES TO CONDENSED FINANCIAL STATEMENTS

(amounts in thousands, except share and per share data)

(unaudited)

The denominators used in the net loss per share computations are as follows:

	Three Months Ended March 31,
	2015		2014
Basic:
Weighted average common shares outstanding		22,808,479		15,654,079
Diluted:
Weighted average common shares outstanding -Basic		22,808,479		15,654,079
Common stock options*		—		—
Common stock warrants*		—		—
Convertible preferred stock*		—		—
Denominator for diluted net loss per share		22,808,479		15,654,079

* No amounts were considered as their effects would be anti-dilutive.

Basic and diluted net loss per share are computed as follows:

	Three Months Ended March 31,
	2015			2014
Net loss	$	(4,689	)	$	(3,383	)
Weighted-average common shares outstanding:
Basic and Diluted		22,808,479			15,654,079
Net loss per share, Basic and Diluted	$	(0.21	)	$	(0.22	)

Securities outstanding at the end of the respective periods presented below, that could potentially dilute basic earnings per share in the future, that were not included in the computation of diluted net loss per share because to do so would have been anti-dilutive are as follows:

	March 31,
	2015		2014
Common stock options		1,294,480		877,160
Common stock warrants		—		19,851
Total		1,294,480		897,011

All common stock warrants were exercised in a net exercise on July 31, 2014 (see Note 8, Long-Term Debt, in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014).

9

CARA THERAPEUTICS, INC.

NOTES TO CONDENSED FINANCIAL STATEMENTS

(amounts in thousands, except share and per share data)

(unaudited)

8. Stock-Based Compensation

2014 Equity Incentive Plan

The Company’s 2014 Equity Incentive Plan (the “2014 Plan”) is administered by the Company’s Board of Directors or a duly authorized committee thereof (the “Plan administrator”). The 2014 Plan provides for the grant of incentive stock options, non-statutory stock options, restricted stock awards, restricted stock unit awards, stock appreciation rights, performance stock awards and other forms of equity compensation (collectively, “Stock Awards”). Additionally, the 2014 Plan provides for the grant of performance cash awards. Incentive stock options may be granted only to employees. All other awards may be granted to employees, including officers, non-employee directors, and consultants. No incentive stock options may be granted under the 2014 Plan after the tenth anniversary of the effective date of the 2014 Plan. Stock Awards granted under the 2014 Plan vest at the rate specified by the Plan administrator, which, to date, has been 25% on the first anniversary of the date of grant and the balance ratably over the next 36 months. The Plan administrator determines the term of Stock Awards granted under the 2014 Plan up to a maximum of ten years.

The aggregate number of shares of the Company’s common stock reserved for issuance under the 2014 Plan will automatically increase on January 1 of each year, beginning on January 1, 2015 and continuing through and including January 1, 2024, by 3% of the total number of shares of the Company’s capital stock outstanding on December 31 of the preceding calendar year, or a lesser number of shares determined by the Company’s Board of Directors. On January 1, 2015, the aggregate number of shares of common stock that may be issued pursuant to stock awards under the Company’s 2014 Equity Incentive Plan automatically increased from 1,600,000 to 2,284,061. The maximum number of shares that may be issued pursuant to the exercise of incentive stock options under the 2014 Plan is 30,000,000 shares.

Under the 2014 Plan, the Company granted 295,000 and 387,000 stock options during the three months ended March 31, 2015 and 2014, respectively. The fair values of stock options granted during the three months ended March 31, 2015 and 2014 were estimated as of the dates of grant using the Black-Scholes option pricing model with the following assumptions:

	Three Months Ended March 31,
	2015	2014
Risk-free interest rate	1.43% - 1.70%	2.19% - 2.72%
Expected volatility	65% - 67%	67% - 71%
Expected dividend yield	0%	0%
Expected life of employee options (in years)	6.25	6.25
Expected life of nonemployee options (in years)	10	10

The weighted average grant date fair value of options granted to employees during the three months ended March 31, 2015 was $6.23. The weighted average grant date fair value of options granted to employees and members of the Board of Directors for their Board service during the three months ended March 31, 2014 was $6.88. The weighted average fair value of outstanding vested options that had been granted to nonemployee consultants as re-measured during the three months ended March 31, 2015 and 2014, in accordance with ASC 505-50, was $7.22 and $14.37, respectively.

10

CARA THERAPEUTICS, INC.

NOTES TO CONDENSED FINANCIAL STATEMENTS

(amounts in thousands, except share and per share data)

(unaudited)

During the three months ended March 31, 2015 and 2014, the Company recognized compensation expense relating to stock options, as follows:

	Three Months Ended March 31,
	2015		2014
Research and development	$	198	$	72
General and administrative		247		281
Total stock option expense	$	445	$	353

A summary of stock option award activity under the Company’s 2014 Plan as of and for the three months ended March 31, 2015 is presented below:

	Number of Shares			Weighted Average Exercise Price
Outstanding, December 31, 2014		1,022,360		$	8.16
Granted		295,000			10.21
Exercised		(22,880	)		0.25
Outstanding, March 31, 2015		1,294,480		$	8.77
Options exercisable, March 31, 2015		366,349		$	4.32

9. Income Taxes

For the three months ended March 31, 2015 and 2014, pre-tax losses were $4,704 and $3,399, respectively. The Company recognized a full tax valuation allowance against net deferred tax assets at March 31, 2015 and December 31, 2014.

The benefit from income taxes of $15 and $16 for the three months ended March 31, 2015 and 2014, respectively, relates to state research and development tax credits exchanged for cash pursuant to the Connecticut Research and Development Tax Credit Exchange Program, which permits qualified small businesses engaged in research and development activities within Connecticut to exchange their unused research and development tax credits for a cash amount equal to 65% of the value of the exchanged credits.

10. Commitments and Contingencies

Contractual obligations and commitments as of March 31, 2015 were as follows:

	Payment Due for the Year Ending December 31,
	2015		2016		2017		2018		Thereafter		Total
Operating lease (1)	$	665	$	913	$	740	$	—	$	—	$	2,318

(1) The Company leases its operating facility located in Shelton, Connecticut.

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Item 2.   Management’s Discussion and Analysis of Financial Condition and Results of Operations.

Cautionary Note Regarding Forward-Looking Statements

This Quarterly Report on Form 10-Q contains forward-looking statements, within the meaning of the U.S. Private Securities Litigation Reform Act of 1995, that involve substantial risks and uncertainties. In some cases, you can identify forward-looking statements by the words “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “intend,” “may,” “might,” “objective,” “ongoing,” “plan,” “predict,” “project,” “potential,” “should,” “will,” or “would,” and or the negative of these terms, or other comparable terminology intended to identify statements about the future. These statements involve known and unknown risks, uncertainties and other factors that may cause our actual results, levels of activity, performance or achievements to be materially different from the information expressed or implied by these forward-looking statements. Although we believe that we have a reasonable basis for each forward-looking statement contained in this Quarterly Report on Form 10-Q, we caution you that these statements are based on a combination of facts and factors currently known by us and our expectations of the future, about which we cannot be certain.

The forward-looking statements in this Quarterly Report on Form 10-Q include, among other things, statements about:

• the success and timing of our preclinical studies and clinical trials, including our planned Phase 3 clinical trials for I.V. CR845, and the reporting of clinical trial results;

• the acceptability to the U.S. Food and Drug Administration (“FDA”) of our proposed Phase 3 program for I.V. CR845;

• the potential results of ongoing and planned clinical trials and future regulatory and development milestones for our product candidates;

• the potential for CR845 to provide a new therapeutic approach to treating uremic pruritus;

• our plans to develop and commercialize I.V. CR845 and our other product candidates, including Oral CR845;

• our ability to obtain and maintain regulatory approval of our product candidates, including I.V. CR845 and Oral CR845, and the labeling under any approval we may obtain;

• the anticipated commercial launch of our lead product candidate, I.V. CR845;

• the potential of future scheduling of I.V. CR845 by the United States Drug Enforcement Administration, or DEA, if regulatory approval is received;

• the performance of our current and future collaborators, including Maruishi and CKD, and our ability to maintain such collaborations;

• our ability to establish additional collaborations for our product candidates;

• the continued service of our key scientific or management personnel;

• our ability to establish commercialization and marketing capabilities;

• the size and growth of the potential markets for pain management, including the postoperative and chronic pain markets, and our other product candidates and our ability to serve those markets;

• regulatory developments in the United States and foreign countries;

• the rate and degree of market acceptance of any approved products;

• our ability to obtain and maintain coverage and adequate reimbursement from third-party payers for any approved products;

• our expectations regarding the period during which we will be an emerging growth company under the JOBS Act;

• our use of the proceeds from our initial public offering, and the clinical milestones we expect to fund with such proceeds;

• the accuracy of our estimates regarding expenses, future revenues and capital requirements;

• our ability to obtain funding for our operations;

• our ability to obtain and maintain intellectual property protection for our product candidates and our ability to operate our business without infringing on the intellectual property rights of others;

• the success of competing drugs that are or become available; and

• the performance of third-party manufacturers and clinical research organizations.

You should refer to Part I Item 1A. “Risk Factors” of our Annual Report on Form 10-K for the year ended December 31, 2014 for a discussion of important factors that may cause our actual results to differ materially from those expressed or implied by our forward-looking statements. As a result of these factors, we cannot assure you that the forward-looking statements in this Quarterly Report on Form 10-Q will prove to be accurate. Furthermore, if our forward-looking statements prove to be inaccurate, the inaccuracy may be

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material. In light of the significant uncertainties in these forward-looking statements, you should not regard these statements as a representation or warranty by us or any other person that we will achieve our objectives and plans in any specified time frame or at all. We undertake no obligation to publicly update any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by law.

You should read this Quarterly Report on Form 10-Q and the documents that we reference in this Quarterly Report on Form 10-Q and have filed as exhibits to this Quarterly Report on Form 10-Q completely and with the understanding that our actual future results may be materially different from what we expect. We qualify all of our forward-looking statements by these cautionary statements.

The following Management’s Discussion and Analysis of Financial Condition and Results of Operations should be read in conjunction with: (i) the Condensed Financial Statements and related notes thereto which are included in this Quarterly Report on Form 10-Q; and (ii) our Annual Report on Form 10-K for the year ended December 31, 2014.

Overview

We are a clinical-stage biopharmaceutical company focused on developing and commercializing new chemical entities designed to alleviate pain and pruritus by selectively targeting kappa opioid receptors. We are developing a novel and proprietary class of product candidates that target the body’s peripheral nervous system and have demonstrated efficacy in patients with moderate-to-severe pain without inducing many of the undesirable side effects typically associated with currently available pain therapeutics.

Our most advanced product candidate, intravenous, or I.V., CR845, has demonstrated significant pain relief and a favorable safety and tolerability profile in three Phase 2 clinical trials in patients with acute postoperative pain. In addition, in the fourth quarter of 2014, we successfully completed a Human Abuse Liability (“HAL”) trial of I.V. CR845. We believe that the totality of results from the HAL trial are supportive of the potential for CR845 to be the first non-scheduled or low (schedule V) scheduled peripheral opioid for acute pain.

In April 2015, we completed an End-of-Phase 2 meeting with the FDA to discuss the design of pivotal trials for our Phase 3 program for I.V. CR845 in acute pain. Based upon discussions at that meeting, we have modified our clinical development plan for I.V. CR845. We currently anticipate the first of our pivotal trials will be an adaptive design study in patients having abdominal laparoscopic surgery, including laparoscopic hysterectomy and other procedures associated with moderate-to-severe postoperative visceral pain. We are currently finalizing the design of that trial and plan to study several doses administered pre- and post-operatively with an interim analysis to identify optimum doses used to complete enrollment. Subject to FDA protocol review, we anticipate initiating this trial in the third quarter of 2015, with completion expected in 2016. We plan to initiate two additional Phase 3 trials of I.V. CR845 in the first half of 2016 in laparoscopic hysterectomy and bunionectomy. Based on guidance from the FDA, we will require 1,500 total exposures to I.V. CR845, including all Phase 1, Phase 2 and Phase 3 trials, prior to submitting an NDA. We believe our planned clinical trials and our clinical trials completed to date will result in a sufficient number of drug exposures to support an NDA.

We are also developing an oral version of CR845, or Oral CR845, for acute and chronic pain. In the second quarter of 2014, we initiated a Phase 1 trial of a tablet formulation of Oral CR845, for which we announced positive top-line data in the fourth quarter of 2014. We are preparing to advance this formulation of Oral CR845 into a Phase 2 clinical trial in osteoarthritis patients beginning in the third quarter of 2015, with top-line data expected by the end of 2015.

CR845 has exhibited anti-pruritic (anti-itch) potency in standard preclinical models. In the second quarter of 2014, we filed an Investigational New/Drug Application (“IND”) and in the third quarter of 2014 we initiated a proof-of-concept Phase 2 trial for I.V. CR845 for the treatment of uremic pruritus, a systemic condition with high prevalence in dialysis patients for which there are no approved therapeutics in the U.S. In the fourth quarter of 2014, we reported positive top-line dose-ranging pharmacokinetic (PK) and safety data from this trial (considered a Phase 1b trial) and expect to report top-line efficacy results in the second quarter of 2015.

We commenced operations in 2004, and our primary activities to date have been organizing and staffing our company, developing our product candidates, including conducting preclinical studies and clinical trials of CR845-based product candidates and raising capital. To date, we have financed our operations primarily through sales of our equity and debt securities and payments from license agreements. We have no products currently available for sale, and substantially all of our revenue to date has been revenue from license agreements, although we have received nominal amounts of revenue under research grants.

Since our inception and through March 31, 2015, we have received net proceeds of $56.3 million from the sale of 5.75 million shares of our common stock in our initial public offering (“IPO”) after deducting underwriting discounts and commissions and offering expenses, net proceeds of $65.9 million from the sale of various series of convertible preferred stock, $3.6 million from the issuance of convertible promissory notes and $3.8 million from the issuance of long-term debt.

In addition to our financing activities, we have received aggregate payments of $30.1 million pursuant to license agreements related to CR845 and an earlier product candidate for which development efforts ceased in 2007. Included in those aforementioned payments pursuant to license agreements, in April 2013, we received $15.0 million as an upfront payment, and in August 2014, we received an additional $0.5 million related to achievement of a milestone in connection with the license of rights to CR845 in Japan to

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Maruishi Pharmaceutical Co., Ltd., (“Maruishi”). In 2012, we received aggregate upfront and milestone payments of $1.2 million pursuant to a license agreement with Chong Kun Dang Pharmaceutical Corporation (“CKD”), in connection with the license of rights to CR845 in South Korea.

Since inception, we have incurred significant operating and net losses. Our net losses were $4.7 million and $3.4 million for the three months ended March 31, 2015 and 2014, respectively. As of March 31, 2015, we had an accumulated deficit of $84.9 million. We expect to continue to incur significant expenses and operating and net losses over at least the next several years. Our net losses may fluctuate significantly from quarter to quarter and year to year, depending on the timing of our clinical trials, the receipt of additional milestone payments, if any, under our collaborations with Maruishi and CKD, the receipt of payments under any future collaborations we may enter into, and our expenditures on other research and development activities.

We anticipate that our expenses will increase substantially as we:

• initiate our planned Phase 3 clinical trials of I.V. CR845;

• continue the research and development of our Oral CR845 and other product candidates;

• seek regulatory approvals for I.V. CR845 and any product candidates that successfully complete clinical trials;

• establish a sales, marketing and distribution infrastructure and scale up external manufacturing capabilities to commercialize any products for which we may obtain regulatory approval;

• maintain, expand and protect our global intellectual property portfolio;

• hire additional clinical, quality control and scientific personnel; and

• add operational, financial and management information systems and personnel, including personnel to support our drug development and potential future commercialization efforts.

To fund future operations, we will need to raise additional capital. As of March 31, 2015, we had cash and cash equivalents of approximately $47.4 million. Although it is difficult to predict future liquidity requirements, we believe that our existing cash and cash equivalents, together with interest thereon, will be sufficient to fund our operations for at least the next 15 months without giving effect to any potential milestone payments we may receive under our collaboration agreements. We may obtain additional financing in the future through the issuance of our common stock, through other equity or debt financings or through collaborations or partnerships with other companies.

On March 27, 2015, we filed Form S-3 (File No. 333-203072) with the SEC, using the shelf registration process. When declared effective by the SEC, the shelf registration statement will provide for the offering of up to $150 million of any combination of common stock, preferred stock, debt securities and warrants. We may offer the securities under our shelf registration statement from time to time in response to market conditions or other circumstances if we believe such a plan of financing is in the best interests of our stockholders. We believe that the shelf registration statement will provide us with the flexibility to raise additional capital to finance our operations as needed.

However, we may not be able to raise additional capital on terms acceptable to us, or at all, and any failure to raise capital as and when needed could compromise our ability to execute on our business plan. Our ability to successfully transition to profitability will be dependent upon achieving a level of revenues adequate to support our cost structure. We cannot assure you that we will ever be profitable or generate positive cash flow from operating activities.

Components of Operating Results

Revenue

To date, we have not generated any revenue from product sales and do not expect to generate any revenue from the sale of products in the near future. Substantially all of our revenue recognized to date has been generated by upfront payments under license agreements with Maruishi and CKD for CR845, a portion of which was deferred upon receipt, as well as license agreements for CR665, our first generation drug program for which development efforts have ceased. However, we have not received any significant clinical development or regulatory milestone payments, or any royalties, under these collaborations.

Research and Development

To date, our research and development expenses have related primarily to the development of CR845. Research and development expenses consist of expenses incurred in performing research and development activities, including compensation and

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benefits for full-time research and development employees, facilities expenses, including laboratory build-out costs, overhead expenses, cost of laboratory supplies, clinical trial and related clinical manufacturing expenses, third-party formulation expenses, fees paid to contract research organizations, or CROs, and other consultants, stock-based compensation for research and development employees and non-employee consultants and other outside expenses. Our research and development expenses also include expenses related to preclinical activities, such as drug discovery, target validation and lead optimization for CR845 and our other, earlier stage programs.

Research and development costs are expensed as incurred. Non-refundable advance payments for goods or services to be received in the future for use in research and development activities are deferred and capitalized. The capitalized amounts are expensed as the related goods are delivered or the services are performed. Most of our research and development costs have been external costs, which we track on a program-by program basis. Our internal research and development costs are primarily compensation expenses for our full-time research and development employees. We do not track internal research and development costs on a program-by-program basis.

Research and development activities are central to our business model. Product candidates in later stages of clinical development generally have higher development costs than those in earlier stages of clinical development, primarily due to the increased size and duration of later-stage clinical trials. We expect our research and development expenses to increase significantly over the next several years as we seek to progress I.V. CR845 through Phase 3 trials and the FDA approval process. However, it is difficult to determine with certainty the duration and completion costs of our current or future preclinical programs and clinical trials of our product candidates, or if, when or to what extent we will generate revenues from the commercialization and sale of any of our product candidates that obtain regulatory approval. We may never succeed in achieving regulatory approval for any of our product candidates.

The duration, costs and timing of clinical trials and development of our product candidates will depend on a variety of factors including:

• per patient trial costs;

• the number of patients that participate in the trials;

• the number of sites included in the trials;

• the countries in which the trial is conducted;

• the length of time required to enroll eligible patients;

• the number of doses that patients receive;

• the drop-out or discontinuation rates of patients;

• potential additional safety monitoring or other studies requested by regulatory agencies;

• the duration of patient follow-up; and

• the efficacy and safety profile of the product candidate.

In addition, the probability of success for each product candidate will depend on numerous factors, including: competition, manufacturing capability and commercial viability. We will determine which programs to pursue and how much to fund each program in response to the scientific and clinical success of each product candidate, as well as an assessment of each product candidate’s commercial potential.

General and Administrative

General and administrative expenses consist primarily of salaries and other related costs, including stock-based compensation, for personnel in executive, finance, accounting, business development and human resources functions. Other significant costs include facility costs not otherwise included in research and development expenses, legal fees, patent costs and fees for accounting and consulting services.

We anticipate that our general and administrative expenses will increase in the future to support our continued research and development activities and potential commercialization of our product candidates. These increases will likely include increased costs related to the hiring of additional personnel, fees to outside consultants, lawyers and accountants, and investor relations costs. In addition, if I.V. CR845 or any future product candidate obtains regulatory approval for marketing, we expect to incur expenses associated with building a sales and marketing team.

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Interest Income

Interest income consists of income earned on our cash and cash equivalents.

Benefit from Income Taxes

The benefit from income taxes relates to state research and development tax credits exchanged for cash pursuant to the Connecticut Research and Development Tax Credit Exchange Program, which permits qualified small businesses engaged in research and development activities within Connecticut to exchange their unused research and development tax credits for a cash amount equal to 65% of the value of the exchanged credits.

Results of Operations

Comparison of the Three Months Ended March 31, 2015 and 2014

Revenue

	Three Months Ended March 31,
	2015		2014		% change
	Dollar amounts in thousands
Collaborative revenue	$	489	$	151		224	%
Clinical compound revenue		—		27		-100	%
Total revenue	$	489	$	178		174	%

Collaborative revenue

Collaborative revenue for the three months ended March 31, 2015 and 2014 consists of $489 thousand and $151 thousand, respectively, of revenue that had been deferred upon entry into the license agreement with Maruishi.

Clinical compound revenue

Clinical compound revenue for the three months ended March 31, 2014 consists of $27 thousand from the sale of clinical compound to Maruishi.

Research and Development Expense

	Three Months Ended March 31,
	2015		2014		% change
	Dollar amounts in thousands
Direct preclinical studies and clinical trial costs	$	1,818	$	1,397		30	%
Consultant services in support of preclinical studies and clinical trials		162		117		39	%
Stock-based compensation		198		72		173	%
Depreciation and amortization		104		106		-2	%
Other operating expenses		1,103		509		117	%
Total R&D expense	$	3,385	$	2,201		54	%

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For the three months ended March 31, 2015 compared to the three months ended March 31, 2014, the net increase in direct preclinical studies and clinical trial costs and related consultant costs primarily resulted from an increase of $611 thousand for the Phase 2 I.V. CR845 uremic pruritus trial, which commenced in the third quarter of 2014. That increase in costs was partially offset by decreases of $86 thousand of CR845 drug manufacturing costs and $92 thousand in connection with the Phase 1 I.V. CR845 renal impairment trial. The increase in stock-based compensation expense reflects grants to additional employees during the three months ended March 31, 2015. The increase in other operating expenses was primarily the result of an increase of $422 thousand of payroll, recruiting and related costs associated with R&D personnel.

The following table summarizes our research and development expenses by product candidate for the three months ended March 31, 2015 and 2014:

	Three Months Ended March 31,
	2015		2014
	Dollar amounts in thousands
External research and development expenses:
I.V. CR845	$	1,745	$	1,040
Oral CR845		244		485
Internal research and development expenses		1,396		676
Total research and development expenses	$	3,385	$	2,201

General and Administrative Expenses

	Three Months Ended March 31,
	2015		2014		% change
	Dollar amounts in thousands
Professional fees and public/investor relations	$	476	$	428		11	%
Stock-based compensation		247		281		-12	%
Depreciation and amortization		89		91		-2	%
Other operating expenses		1,010		598		69	%
Total G&A expense	$	1,822	$	1,398		30	%

For the three months ended March 31, 2015 compared to the three months ended March 31, 2014, the increase in professional fees and public/investor relations costs primarily included increases in public/investor relation costs of $28 thousand and accounting and auditing fees of $30 thousand. The decrease in stock-based compensation expense primarily reflects a reduction in stock option grants during the three months ended March 31, 2015. The increase in other operating expenses primarily included increases of $343 thousand of payroll and related costs in connection with increased headcount and $63 thousand of increases in directors’ and officers’ insurance costs.

Interest Income

Three Months Ended March 31,
2015		2014		% change
Dollar amounts in thousands
$	14	$	22		-37	%

During the three months ended March 31, 2015 compared to the three months ended March 31, 2014, the decrease in interest income was primarily due to the lower average balance of cash and cash equivalents during the 2015 period.

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Benefit from Income Taxes

For the three months ended March 31, 2015 and 2014, pre-tax losses were $4.7 million and $3.4 million, respectively, and we recognized a benefit from income taxes of $15 thousand and $16 thousand, respectively. The benefit from income taxes relates to state research and development tax credits exchanged for cash pursuant to the Connecticut Research and Development Tax Credit Exchange Program, as discussed above. We recognized a full valuation allowance against net deferred tax assets at March 31, 2015 and December 31, 2014.

Liquidity and Capital Resources

Sources of Liquidity

Since our inception and through March 31, 2015, we have raised an aggregate of approximately $160 million to fund our operations, including proceeds of $56.3 million, net of underwriting discounts and commissions and offering expenses, from our IPO, which closed in February 2014, $30.1 million received under our license agreements, primarily with Maruishi and CKD, and an earlier product candidate for which development efforts ceased in 2007, $65.9 million of proceeds from the sale of shares of our convertible preferred stock and $7.4 million of net proceeds from debt financings. As of March 31, 2015, we had $47.4 million in cash and cash equivalents, which we believe will be sufficient to fund our operations for the next 15 months without giving effect to any potential milestone payments we may receive under our collaboration agreements.

On March 27, 2015, we filed Form S-3 (File No. 333-203072) with the SEC, using the shelf registration process. When declared effective by the SEC, the shelf registration statement will provide for the offering of up to $150 million of any combination of common stock, preferred stock, debt securities and warrants. We may offer the securities under our shelf registration statement from time to time in response to market conditions or other circumstances if we believe such a plan of financing is in the best interests of our stockholders. We believe that the shelf registration statement will provide us with the flexibility to raise additional capital to finance our operations as needed.

In addition to our existing cash and cash equivalents, under our agreement with Maruishi, we are potentially eligible to earn up to an aggregate of $6.0 million in clinical development milestones and $4.5 million in regulatory milestones as well as tiered royalties, with percentages ranging from the low double digits to the low twenties, based on net sales of products containing CR845 in Japan, if any, and share in any sub-license fees. During the second quarter of 2014, Maruishi completed a Phase 1 clinical trial in Japan related to CR845 in acute post-operative pain for which we received a clinical development milestone payment of $0.5 million during the third quarter of 2014. The next potential milestone that the Company could be entitled to receive under the Maruishi license agreement will be a clinical development milestone for initiation of a Phase 1 clinical trial in Japan for a certain indication. If achieved, this milestone will result in a $2.0 million payment being due to the Company.

Under our agreement with CKD, we are potentially eligible to earn up to an aggregate of $2.3 million in clinical development milestones and $1.5 million in regulatory milestones as well as tiered royalties with percentages ranging from the high single digits to the high teens, based on net sales of products containing CR845 in South Korea, if any, and share in any sub-license fees. Our ability to earn these payments and their timing is dependent upon the outcome of I.V. and Oral CR845 development activities and, potentially, commercialization. However, our receipt of any further such amounts is uncertain at this time and we may never receive any more of these amounts.

Funding Requirements

Our primary uses of capital have been, and we expect will continue to be, compensation and related expenses, third-party clinical research and development services, laboratory and related supplies, clinical costs, legal and other regulatory expenses and general overhead costs. See Part II Item 2, Unregistered Sales of Equity Securities and Use of Proceeds, below, regarding the use of the net proceeds from our IPO.

The successful development of any of our product candidates is highly uncertain. As such, at this time, we cannot reasonably estimate or know the nature, timing and costs of the efforts that will be necessary to complete the development of I.V. CR845, Oral

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CR845 or our other current and future product candidates. We are also unable to predict when, if ever, we will generate any further material net cash inflows from CR845. This is due to the numerous risks and uncertainties associated with developing medicines, including the uncertainty of:

• successful enrollment in, and completion of clinical trials;

• receipt of marketing approvals from applicable regulatory authorities;

• establishing commercial manufacturing capabilities or making arrangements with third-party manufacturers;

• obtaining and maintaining patent and trade secret protection and regulatory exclusivity for our product candidates;

• launching commercial sales of the products, if and when approved, whether alone or in collaboration with others;

• achieving meaningful penetration in the markets which we seek to serve; and

• obtaining adequate coverage or reimbursement by third parties, such as commercial payors and government healthcare programs, including Medicare and Medicaid.

A change in the outcome of any of these variables with respect to the development of I.V. CR845, Oral CR845 or any of our future product candidates would significantly change the costs and timing associated with the development of that product candidate.

Because our product candidates are still in the early stages of clinical and preclinical development and the outcome of these efforts is uncertain, we cannot estimate the actual amounts necessary to successfully complete the development and commercialization of our product candidates or whether, or when, we may achieve profitability. Until such time, if ever, as we can generate substantial product revenues, we expect to finance our cash needs through a combination of equity or debt financings and collaboration arrangements, including our existing collaboration agreements with Maruishi and CKD.

We will require additional capital beyond our currently anticipated amounts, as described above, and this additional capital may not be available when needed, on reasonable terms, or at all. In particular, because we do not have sufficient financial resources to meet all of our development objectives, including the completion of our planned Phase 3 trials of I.V. CR845, we will need to raise additional capital. If we are not able to do so, we could be required to postpone, scale back or eliminate some, or all, of these objectives, including one or more of our planned Phase 3 trials of I.V. CR845. To the extent that we raise additional capital through the future sale of equity or convertible debt, the ownership interest of our stockholders will be diluted, and the terms of these securities may include liquidation or other preferences that adversely affect the rights of our existing common stockholders. If we raise additional funds through the issuance of debt securities, these securities could contain covenants that would restrict our operations. If we raise additional funds through collaboration arrangements in the future, we may have to relinquish valuable rights to our technologies, future revenue streams or product candidates or grant licenses on terms that may not be favorable to us. If we are unable to raise additional funds through equity or debt financings when needed, we may be required to delay, limit, reduce or terminate our drug development or future commercialization efforts or grant rights to develop and market product candidates that we would otherwise prefer to develop and market ourselves.

Outlook

Based on our research and development plans and our timing expectations related to the progress of our programs, we expect that our existing cash and cash equivalents as of March 31, 2015 will enable us to fund our operating expenses and capital expenditure requirements for at least the next 15 months, without giving effect to any potential milestone payments we may receive under our collaboration agreements. Because the process of testing product candidates in clinical trials is costly and the timing of progress in these trials is uncertain, it is possible that the assumptions upon which we have based this estimate may prove to be wrong, and we could use our capital resources sooner than we presently expect.

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Cash Flows

The following is a summary of the net cash flows provided by (used in) our operating, investing and financing activities for the three months ended March 31, 2015 and 2014:

	Three Months Ended March 31,
	2015			2014
	Dollar amounts in thousands
Net cash used in operating activities	$	(5,241	)	$	(3,091	)
Net cash used in investing activities		(6	)		—
Net cash provided by financing activities		6			57,772
(Decrease) increase in cash and cash equivalents	$	(5,241	)	$	54,681

Net cash used in operating activities

Net cash used in operating activities for the three months ended March 31, 2015 consisted primarily of a net loss of $4.7 million and a $1.1 million outflow from net changes in operating assets and liabilities, partially offset by $0.6 million cash inflow from net non-cash charges. The net change in operating assets and liabilities primarily consisted of cash outflows of $0.7 million from an increase in prepaid expense, primarily related to increases in prepaid clinical costs and prepaid insurance and $0.5 million from a decrease in deferred revenue from the Maruishi license transaction. Those cash outflows were partially offset by a cash inflow of $0.1 million from an increase in accounts payable and accrued expenses. Net non-cash charges primarily consisted of depreciation and amortization expense of $0.2 million and stock-based compensation expense of $0.4 million, partially offset by deferred rent costs of $0.1 million.

Net cash used in operating activities for the three months ended March 31, 2014 consisted primarily of a net loss of $3.4 million, and a $0.2 million cash outflow from net changes in operating assets and liabilities, partially offset by $0.5 million of net non-cash charges. The net change in operating assets and liabilities mostly consisted of cash outflows of $0.4 million of prepaid expenses, primarily related to prepaid insurance and prepaid clinical costs, and $0.1 million of deferred revenue from the Maruishi license transaction. Those cash outflows were partially offset by cash inflows of $0.2 million in accounts payable and accrued expenses. Net non-cash charges primarily consisted of depreciation and amortization expense of $0.2 million and stock-based compensation expense of $0.4 million, partially offset by deferred rent costs of $0.1 million.

Net cash used in investing activities

Net cash used in investing activities was $6 thousand and $0 for the three months ended March 31, 2015 and 2014, respectively, related to the purchase of office equipment.

Net cash provided by financing activities

Net cash provided by financing activities for the three months ended March 31, 2015 consisted primarily of proceeds of $6 thousand received from the exercise of stock options.

Net cash provided by financing activities for the three months ended March 31, 2014 consisted primarily of gross proceeds of $63.2 million from our initial public offering, partially offset by $5.4 million of underwriting discounts and commissions and offering expenses paid in the three months ended March 31, 2014.

Significant Contractual Obligations and Commitments

Contractual obligations and commitments as of March 31, 2015 consisted of operating lease obligations in connection with our operating facility in Shelton, Connecticut. See Note 10 of Notes to Condensed Financial Statements in this Quarterly Report on Form 10-Q.

Recent Accounting Pronouncements

Please refer to Note 2 of Notes to Condensed Financial Statements in this Quarterly Report on Form 10-Q.

Off-Balance Sheet Arrangements

We did not have during the periods presented in our condensed financial statements included in this report, and we do not currently have, any off-balance sheet arrangements, as defined under SEC rules.

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Discussion of Critical Accounting Policies

The preparation of financial statements in conformity with GAAP requires us to use judgment in making certain estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities and the reported amounts of revenues and expenses in our condensed financial statements and accompanying notes. Critical accounting policies are those that are most important to the portrayal of our financial condition and results of operations and require difficult, subjective and complex judgments by management in order to make estimates about the effect of matters that are inherently uncertain. During the three months ended March 31, 2015, there were no significant changes to our critical accounting policies from those described in our Annual Report on Form 10-K for the year ended December 31, 2014.

Item 3.   Quantitative and Qualitative Disclosures About Market Risk.

The market risk inherent in our financial instruments and in our financial position represents the potential loss arising from adverse changes in interest rates. As of March 31, 2015 and December 31, 2014, we had cash and cash equivalents of $47.4 million and $52.7 million, respectively. We generally hold our cash equivalents in interest-bearing money market savings accounts. Our primary exposure to market risk is interest rate sensitivity, which is affected by changes in the general level of U.S. interest rates. Due to the short-term maturities of our cash equivalents and the low risk profile of our investments, an immediate 100 basis point change in interest rates would not have a material effect on the fair market value of our cash equivalents.

Item 4.   Controls and Procedures.

(a) Disclosure Controls and Procedures.

Our management, with the participation of our Chief Executive Officer and Chief Financial Officer, has evaluated the effectiveness of our disclosure controls and procedures (as such term is defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act) as of March 31, 2015. Management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving their objectives and management necessarily applies its judgment in evaluating the cost benefit relationship of possible controls and procedures. Based on such evaluation, our Chief Executive Officer and Chief Financial Officer have concluded that, as of March 31, 2015, our disclosure controls and procedures were effective.

(b) Changes in Internal Control Over Financial Reporting

There was no change in our internal control over financial reporting identified in connection with the evaluation required by Rule 13a-15(f) and 15d-15(f) of the Exchange Act that occurred during the quarter ended March 31, 2015 that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

21

PART II

OTHER INFORMATION

Item 1.   Legal Proceedings

From time to time, we are subject to litigation and claims arising in the ordinary course of business. We are not currently a party to any material legal proceedings and we are not aware of any pending or threatened legal proceedings against us that we believe could have a material adverse effect on our business, operating results or financial condition.

Item 1A.   Risk Factors.

Please refer to Item 1A. Risk Factors in our Annual Report on Form 10-K for the year ended December 31, 2014, filed with the SEC on March 27, 2015, for a description of certain significant risks and uncertainties to which our business, operations and financial condition are subject. During the three months ended March 31, 2015, we did not identify any additional risk factors or any material changes to the risk factors discussed in the Annual Report on Form 10-K for the year ended December  31, 2014.

Item 2.   Unregistered Sales of Equity Securities and Use of Proceeds.

Use of IPO Proceeds

On January 30, 2014, our registration statement on Form S-1 (File No 333-192230) was declared effective by the SEC for our initial public offering, pursuant to which we registered the offering and sale of 5,750,000 shares of common stock, $0.001 par value per share (including 750,000 shares issued upon the underwriters’ exercise of an option to purchase additional shares) at a public offering price of $11.00 per share for an aggregate public offering price of $63.2 million.

As a result of the initial public offering, we received net proceeds on February 5, 2014 of approximately $58.8 million, after deducting approximately $4.4 million of underwriting discounts and commissions but before giving effect to any offering expenses borne by us. In addition, we have paid approximately an additional $2.5 million of offering expenses in connection with the IPO. None of such payments were direct or indirect payments to any of (i) our directors or officers or their associates, (ii) persons owning 10 percent or more of our common stock, or (iii) our affiliates.

There has been no material change in the planned use of proceeds from our initial public offering from that described in the final prospectus related to the offering, which we filed with the SEC on February 3, 2014. As of March 31, 2015, we have used approximately $13.1 million of the funds received from our IPO for clinical trials and payments to research and development consultants.

Item 3.   Defaults upon Senior Securities.

None.

Item 4.   Mine Safety Disclosures.

Not applicable.

Item 5.   Other Information.

None.

22

Item 6.   Exhibits.

Exhibit No.	Description of Exhibit
3.1	Amended and Restated Certificate of Incorporation (1)
3.2	Amended and Restated Bylaws (2)
31.1	Certification of Chief Executive Officer of Cara Therapeutics, Inc. pursuant to Rule 13a-14(a)/15d-14(a) of the Securities Exchange Act of 1934.
31.2	Certification of Chief Financial Officer of Cara Therapeutics, Inc. pursuant to Rule 13a-14(a)/15d-14(a) of the Securities Exchange Act of 1934.
32.1*	Certifications of Chief Executive Officer and Chief Financial Officer of Cara Therapeutics, Inc. pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101	Interactive Data File
101.CAL	XBRL Taxonomy Extension Calculation Linkbase.
101.INS	XBRL Instance Document.
101.LAB	XBRL Taxonomy Extension Label Linkbase.
101.PRE	XBRL Taxonomy Extension Presentation Linkbase.
101.SCH	XBRL Taxonomy Extension Schema Linkbase.
101.DEF	XBRL Definition Linkbase Document.

(1) Filed as exhibit 3.1 to the Registrant’s Current Report on Form 8-K (File No. 001-36279) filed with the Securities and Exchange Commission on February 7, 2014 and incorporated herein by reference.

(2) Filed as exhibit 3.2 to the Registrant’s Current Report on Form 8-K (File No. 001-36279) filed with the Securities and Exchange Commission on February 7, 2014 and incorporated herein by reference.

* These certifications are being furnished solely to accompany this quarterly report pursuant to 18 U.S.C. Section 1350, and are not being filed for purposes of Section 18 of the Securities Exchange Act of 1934 and are not to be incorporated by reference into any filing of the registrant, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

23

SIGNATURES

Pursuant to 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.

	CARA THERAPEUTICS, INC.
Date: May 12, 2015	By	/s/ Derek Chalmers
	Derek Chalmers, Ph.D., D.Sc.
	President and Chief Executive Officer
	(Principal Executive Officer)
Date: May 12, 2015	By	/s/ Josef Schoell
	Josef Schoell
	Chief Financial Officer
	(Principal Financial and Accounting Officer)

24

EX-31.1

EXHIBIT 31.1

Certification of Chief Executive Officer Pursuant to

Rule 13a-14(a) under the Securities Exchange Act

of 1934, as Adopted Pursuant to

Section 302 of the Sarbanes-Oxley Act of 2002

I, Derek Chalmers, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Cara Therapeutics, Inc.;

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 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.

Date: May 12, 2015	By:	/s/ Derek Chalmers, Ph.D., D.Sc.
		DEREK CHALMERS
		CHIEF EXECUTIVE OFFICER

EX-31.2

EXHIBIT 31.2

Certification of Chief Financial Officer Pursuant to

Rule 13a-14(a) under the Securities Exchange Act

of 1934, as Adopted Pursuant to

Section 302 of the Sarbanes-Oxley Act of 2002

I, Josef Schoell, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Cara Therapeutics, Inc.;

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 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.

Date: May 12, 2015	By:	/s/ Josef Schoell
		JOSEF SCHOELL
		CHIEF FINANCIAL OFFICER

EX-32.1

EXHIBIT 32.1

CERTIFICATIONS OF

CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER

OF CARA THERAPEUTICS, INC.

PURSUANT TO 18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO SECTION 906 OF THE

SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of Cara Therapeutics, Inc. (the “Company”) for the quarter ended March 31, 2015, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), Derek Chalmers, Ph.D., D.Sc., as Chief Executive Officer of the Company, and Josef Schoell, as Chief Financial Officer of the Company, each hereby certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of his knowledge, based upon a review of the Report:

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

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

/s/ DEREK CHALMERS
Name:	Derek Chalmers, Ph.D., D.Sc.
Title:	Chief Executive Officer
Date:	May 12, 2015
/s/ JOSEF SCHOELL
Name:	Josef Schoell
Title:	Chief Financial Officer
Date:	May 12, 2015

XML

Commitments and Contingencies - Schedule of Contractual Obligations and Commitments (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
2015	$ 665
2016	913
2017	740
2018	0
Thereafter	0
Total	$ 2,318

XML

Net Loss Per Share - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2015
Earnings Per Share [Abstract]
Warrant exercise date	Jul. 31, 2014

XML

Basis of Presentation - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014
Accounting Policies [Abstract]
Clinical compound revenue	$ 27

XML

Stock-Based Compensation - Summary of Stock Option Award Activity under 2014 Plan (Detail) (2014 Equity Incentive Plan [Member], USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
2014 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Outstanding, December 31, 2014	1,022,360
Number of Shares, Granted	295,000	387,000
Number of Shares, Exercised	(22,880)
Number of Shares, Outstanding, March 31, 2015	1,294,480
Number of Shares, Options exercisable, March 31, 2015	366,349
Weighted-Average Exercise Price, Outstanding, December 31, 2014	$ 8.16
Weighted-Average Exercise Price, Granted	$ 10.21
Weighted-Average Exercise Price, Exercised	$ 0.25
Weighted-Average Exercise Price, Outstanding, March 31, 2015	$ 8.77
Weighted-Average Exercise Price, Options exercisable, March 31, 2015	$ 4.32

XML

Basis of Presentation

3 Months Ended

Mar. 31, 2015

Accounting Policies [Abstract]

Basis of Presentation

2. Basis of Presentation

The unaudited interim condensed financial statements included herein have been prepared pursuant to the rules and regulations of the SEC. Accordingly, they do not include all information and disclosures necessary for a presentation of the Company’s financial position, results of operations and cash flows in conformity with generally accepted accounting principles in the United States of America (“GAAP”). In the opinion of management, these unaudited interim financial statements reflect all adjustments, consisting primarily of normal recurring accruals, necessary for a fair presentation of results for the periods presented. The results of operations for interim periods are not necessarily indicative of the results for the full year. Certain information and footnote disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted from this report, as is permitted by SEC rules and regulations; however, the Company believes that the disclosures are adequate to make the information presented not misleading. The condensed balance sheet data for the year ended December 31, 2014 were derived from audited financial statements, but do not include all disclosures required by GAAP. These unaudited interim condensed financial statements should be read in conjunction with the audited financial statements and accompanying notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014.

Use of Estimates

The preparation of financial statements in conformity with GAAP requires the Company to make estimates and assumptions that affect the reported amounts of assets and liabilities, and disclosure of contingent assets and liabilities, as of the date of the financial statements as well as the reported amounts of revenues and expenses during the reporting period. Actual results could differ materially from the Company’s estimates and assumptions. Significant estimates include useful lives of fixed assets, the periods over which certain revenues will be recognized, including licensing and collaborative revenue recognized from non-refundable up-front and milestone payments, the determination of prepaid research and development clinical costs and accrued research projects, the amount of non-cash compensation costs related to share-based payments to employees and non-employees and the periods over which those costs are expensed and the likelihood of realization of deferred tax assets.

Significant Accounting Policies

There have been no material changes to the significant accounting policies previously disclosed in Note 2 to the Financial Statements in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014.

Recent Accounting Pronouncements

In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update 2014-09, Revenue from Contracts with Customers (Topic 606) (“ASU 2014-09”). On April 29, 2015, the FASB proposed to defer the effective date of ASU 2015-09 for the Company from January 1, 2017 to January 1, 2018. Earlier application by the Company would be permitted only as of January 1, 2017, including interim reporting periods within the year ending December 31, 2017. Comments are due by May 29, 2015.

During April 2015, the Financial Accounting Standards Board issued Accounting Standards Update 2015-03 (“ASU 2015-03”) “Interest—Imputation of Interest (Subtopic 835-30) Simplifying the Presentation of Debt Issuance Costs”, which simplifies the presentation of debt issuance costs by requiring debt issuance costs (e.g., legal fees, printing costs) to be presented as a deduction from the corresponding debt liability rather than as assets, as under current guidance. ASU 2015-03 will make the presentation of debt issuance costs consistent with the presentation of debt discounts or premiums resulting from the difference between the net proceeds received upon debt issuance and the amount payable at maturity, which is presented as a direct deduction from or an addition to the face amount of the debt. ASU 2015-03 is effective for the Company for financial statements issued for periods beginning on January 1, 2016, including interim periods. Early adoption of ASU 2015-03 is permitted for financial statements that have not been previously issued. If the Company issues debt before January 1, 2016, it will decide whether to early adopt ASU 2015-03. Upon adoption, the Company must apply the new guidance retrospectively to all prior periods presented in the financial statements. The Company does not expect the adoption of ASU 2015-03 to have a material effect on its financial position, results of operations or cash flows.

Reclassifications

Certain revenue amounting to $27 within the Statement of Operations for the three months ended March 31, 2014 has been reclassified from Collaborative revenue to Clinical compound revenue to conform to the current year presentation.

XML

Accounts Payable and Accrued Expenses - Schedule of Accounts Payable and Accrued Expenses (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Payables and Accruals [Abstract]
Accounts payable	$ 938	$ 515
Accrued research projects	841	549
Accrued professional fees	278	266
Accrued compensation and benefits	350	504
Accrued other	57	112
Total	$ 2,464	$ 1,946

XML

Collaborations - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Deferred R&D service revenue	$ 963		$ 1,452
Collaborative revenue	489	151
Revenue recognized from sale of clinical compound		27
Maruishi License Agreement [Member]
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Number of deliverables for revenue recognized	2
Clinical trial costs related to the R&D services deliverable	599	398
Maruishi Pharmaceutical Co., Ltd. [Member]
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Revenue recognized from nonsubstantive milestones	8,000
Revenue recognized from substantive milestones	2,500
Deferred R&D service revenue	963		1,452
Collaborative revenue	489	151
Revenue recognized from sale of clinical compound	0	27
Maruishi Pharmaceutical Co., Ltd. [Member] | Clinical Development [Member]
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Next potential milestone that could be received	$ 2,000

XML

Net Loss Per Share - Computation of Denominators Used in Net Loss Per Share (Detail)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Basic:
Weighted average common shares outstanding	22,808,479	15,654,079
Diluted:
Weighted average common shares outstanding -Basic	22,808,479	15,654,079
Common stock options	0	0
Common stock warrants	0	0
Convertible preferred stock	0	0
Denominator for diluted net loss per share	22,808,479	15,654,079

XML

Net Loss Per Share - Computation of Basic and Diluted Net Loss Per Share (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Earnings Per Share [Abstract]
Net loss	$ (4,689)	$ (3,383)
Weighted-average common shares outstanding:
Basic and Diluted	22,808,479	15,654,079
Net loss per share, Basic and Diluted	$ (0.21)	$ (0.22)

XML

Business

3 Months Ended

Mar. 31, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Business

1. Business

Cara Therapeutics, Inc. (the “Company”, “we”, “our” or “us”) is a clinical-stage biopharmaceutical corporation formed on July 2, 2004. The Company is focused on developing and commercializing new chemical entities designed to alleviate pain and pruritus by selectively targeting kappa opioid receptors. The Company’s primary activities to date have been organizing and staffing the company, developing its product candidates, including conducting preclinical studies and clinical trials of CR845-based product candidates and raising capital.

As of March 31, 2015, the Company has raised aggregate net proceeds of approximately $129,600 from several rounds of equity financing, including its initial public offering, and the issuance of debt. In addition, the Company received $30,100 under its license agreements for CR845, primarily with Maruishi Pharmaceutical Co. Ltd. (“Maruishi”) and Chong Kun Dang Pharmaceutical Corp. (“CKD”), and an earlier product candidate for which development efforts ceased in 2007. Included in those aforementioned payments pursuant to license agreements, in April 2013, the Company received $15,000 as an upfront payment, and in August 2014, the Company received an additional $480 related to achievement of a milestone in connection with the license of rights to CR845 in Japan to Maruishi. In 2012, the Company received aggregate upfront and milestone payments of $1,190 pursuant to a license agreement with CKD, in connection with the license of rights to CR845 in South Korea. The Company has incurred substantial losses and negative cash flows from operating activities in nearly every fiscal period since inception, and expects operating losses and negative cash flows to continue into the foreseeable future.

As of March 31, 2015, the Company has unrestricted cash and cash equivalents of $47,422 and an accumulated deficit of $84,890. The Company had net cash used in operating activities of $5,241 and $3,091 for the three months ended March 31, 2015 and 2014, respectively. The Company expects that cash and cash equivalents at March 31, 2015 will be sufficient to fund its operations beyond one year. The Company recognized net losses of $4,689 and $3,383 for the three months ended March 31, 2015 and 2014, respectively, and expects to incur additional losses for the full year ending December 31, 2015.

The Company is subject to risks common to other life science companies including, but not limited to, uncertainty of product development and commercialization, lack of marketing and sales history, development by its competitors of new technological innovations, dependence on key personnel, market acceptance of products, product liability protection of proprietary technology, ability to raise additional financing, and compliance with Food and Drug Administration (“FDA”) and other government regulations. If the Company does not successfully commercialize any of its product candidates, it will be unable to generate recurring product revenue or achieve profitability.

XML

Net Loss Per Share - Schedule of Anti-Dilutive Common Stock Equivalents Excluded from Calculations of Diluted Net Loss Per Share (Detail)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive common stock equivalents	1,294,480	897,011
Common Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive common stock equivalents	1,294,480	877,160
Common Stock Warrants [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive common stock equivalents		19,851

XML

Condensed Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 47,422	$ 52,663
Income tax receivable	215	200
Prepaid expenses	1,420	287
Total current assets	49,057	53,150
Property and equipment, net	1,897	2,084
Restricted cash	700	700
Total assets	51,654	55,934
Current liabilities:
Accounts payable and accrued expenses	2,464	1,946
Deferred revenue	963	1,452
Total current liabilities	3,427	3,398
Deferred lease obligation	803	874
Commitments and contingencies (Note 10)
Stockholders' equity:
Preferred stock; $0.001 par value; 5,000,000 shares authorized at March 31, 2015 and December 31, 2014, zero shares issued and outstanding at March 31, 2015 and December 31, 2014
Common stock; $0.001 par value; 100,000,000 shares authorized at March 31, 2015 and December 31, 2014, 22,824,919 shares and 22,802,039 shares issued and outstanding at March 31, 2015 and December 31, 2014, respectively	23	23
Additional paid-in capital	132,291	131,840
Accumulated deficit	(84,890)	(80,201)
Total stockholders' equity	47,424	51,662
Total liabilities and stockholders' equity	$ 51,654	$ 55,934

XML

Condensed Statements of Convertible Preferred Stock and Stockholders' (Deficit) Equity (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014
Statement of Stockholders' Equity [Abstract]
Sale of common stock in initial public offering, per share	$ 11.00
Underwriting discounts and commissions and offering expenses	$ 7,003

XML

Stock-Based Compensation - Summary of Assumptions Used in Black-Scholes Option Pricing Model (Detail)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate, minimum	1.43%	2.19%
Risk-free interest rate, maximum	1.70%	2.72%
Expected volatility, minimum	65.00%	67.00%
Expected volatility, maximum	67.00%	71.00%
Expected dividend yield	0.00%	0.00%
Employee Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected life of options (in years)	6 years 3 months	6 years 3 months
Nonemployee Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected life of options (in years)	10 years	10 years

XML

Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Summary of Assumptions Used in Black-Scholes Option Pricing Model

The fair values of stock options granted during the three months ended March 31, 2015 and 2014 were estimated as of the dates of grant using the Black-Scholes option pricing model with the following assumptions:

	Three Months Ended March 31,
	2015	2014
Risk-free interest rate	1.43% - 1.70%	2.19% - 2.72%
Expected volatility	65% - 67%	67% - 71%
Expected dividend yield	0%	0%
Expected life of employee options (in years)	6.25	6.25
Expected life of nonemployee options (in years)	10	10

Summary of Compensation Expense Relating to Stock Options

During the three months ended March 31, 2015 and 2014, the Company recognized compensation expense relating to stock options, as follows:

	Three Months Ended March 31,
	2015		2014
Research and development	$	198	$	72
General and administrative		247		281
Total stock option expense	$	445	$	353

Summary of Stock Option Award Activity under 2014 Plan

A summary of stock option award activity under the Company’s 2014 Plan as of and for the three months ended March 31, 2015 is presented below:

	Number of Shares			Weighted Average Exercise Price
Outstanding, December 31, 2014		1,022,360		$	8.16
Granted		295,000			10.21
Exercised		(22,880	)		0.25
Outstanding, March 31, 2015		1,294,480		$	8.77
Options exercisable, March 31, 2015		366,349		$	4.32

XML

Stock-Based Compensation - Summary of Compensation Expense Relating to Stock Options (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock option expense	$ 445	$ 353
Research and Development [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock option expense	198	72
General and Administrative [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock option expense	$ 247	$ 281

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Business - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		1 Months Ended		12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Aug. 31, 2014	Apr. 30, 2013	Dec. 31, 2012	Dec. 31, 2014	Dec. 31, 2013
Nature Of Business [Line Items]
Date of formation	Jul. 02, 2004
Proceeds from equity and debt financing	$ 129,600
Cash received in connection with license agreements, including upfront and milestone payments received	30,100
Unrestricted cash and cash equivalents	47,422	67,038				52,663	12,357
Accumulated deficit	84,890					80,201
Net cash used in operating activities	5,241	3,091
Net loss	4,689	3,383
Maruishi Pharmaceutical Co., Ltd. [Member]
Nature Of Business [Line Items]
Upfront license fee received				15,000
Milestone payment received			480
Chong Kun Dang Pharmaceutical Corporation [Member]
Nature Of Business [Line Items]
Upfront and milestone payments related to license agreement					$ 1,190

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Condensed Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Operating activities
Net loss	$ (4,689)	$ (3,383)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation expense	445	353
Depreciation and amortization	193	197
Deferred rent costs	(71)	(65)
Changes in operating assets and liabilities:
Income tax receivable	(15)	15
Prepaid expenses	(733)	(377)
Accounts payable and accrued expenses	118	227
Deferred revenue	(489)	(58)
Net cash used in operating activities	(5,241)	(3,091)
Investing activities
Purchases of property and equipment	(6)
Net cash used in investing activities	(6)
Financing activities
Proceeds from initial public offering, net of issuance costs		57,772
Proceeds from the exercise of stock options	6
Net cash provided by financing activities	6	57,772
Net cash (decrease) increase for the period	(5,241)	54,681
Cash and cash equivalents at beginning of period	52,663	12,357
Cash and cash equivalents at end of period	47,422	67,038
Noncash financing activities
Conversion of convertible preferred stock to common stock		65,586
Reclassification of prepaid IPO costs paid in 2013		1,465
Unpaid IPO issuance costs		$ 60

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Condensed Balance Sheets (Parenthetical) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	22,824,919	22,802,039
Common stock, shares outstanding	22,824,919	22,802,039

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Commitments and Contingencies

3 Months Ended

Mar. 31, 2015

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

10. Commitments and Contingencies

Contractual obligations and commitments as of March 31, 2015 were as follows:

	Payment Due for the Year Ending December 31,
	2015		2016		2017		2018		Thereafter		Total
Operating lease (1)	$	665	$	913	$	740	$	—	$	—	$	2,318

(1) The Company leases its operating facility located in Shelton, Connecticut.

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Document and Entity Information	3 Months Ended
	Mar. 31, 2015	May 08, 2015
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2015
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1
Trading Symbol	CARA
Entity Registrant Name	Cara Therapeutics, Inc.
Entity Central Index Key	0001346830
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		22,824,919

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Basis of Presentation (Policies)

3 Months Ended

Mar. 31, 2015

Accounting Policies [Abstract]

Basis of Presentation

2. Basis of Presentation

The unaudited interim condensed financial statements included herein have been prepared pursuant to the rules and regulations of the SEC. Accordingly, they do not include all information and disclosures necessary for a presentation of the Company’s financial position, results of operations and cash flows in conformity with generally accepted accounting principles in the United States of America (“GAAP”). In the opinion of management, these unaudited interim financial statements reflect all adjustments, consisting primarily of normal recurring accruals, necessary for a fair presentation of results for the periods presented. The results of operations for interim periods are not necessarily indicative of the results for the full year. Certain information and footnote disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted from this report, as is permitted by SEC rules and regulations; however, the Company believes that the disclosures are adequate to make the information presented not misleading. The condensed balance sheet data for the year ended December 31, 2014 were derived from audited financial statements, but do not include all disclosures required by GAAP. These unaudited interim condensed financial statements should be read in conjunction with the audited financial statements and accompanying notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014.

Use of Estimates

Use of Estimates

The preparation of financial statements in conformity with GAAP requires the Company to make estimates and assumptions that affect the reported amounts of assets and liabilities, and disclosure of contingent assets and liabilities, as of the date of the financial statements as well as the reported amounts of revenues and expenses during the reporting period. Actual results could differ materially from the Company’s estimates and assumptions. Significant estimates include useful lives of fixed assets, the periods over which certain revenues will be recognized, including licensing and collaborative revenue recognized from non-refundable up-front and milestone payments, the determination of prepaid research and development clinical costs and accrued research projects, the amount of non-cash compensation costs related to share-based payments to employees and non-employees and the periods over which those costs are expensed and the likelihood of realization of deferred tax assets.

Significant Accounting Policies

Significant Accounting Policies

There have been no material changes to the significant accounting policies previously disclosed in Note 2 to the Financial Statements in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014.

Recent Accounting Pronouncements

Recent Accounting Pronouncements

In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update 2014-09, Revenue from Contracts with Customers (Topic 606) (“ASU 2014-09”). On April 29, 2015, the FASB proposed to defer the effective date of ASU 2015-09 for the Company from January 1, 2017 to January 1, 2018. Earlier application by the Company would be permitted only as of January 1, 2017, including interim reporting periods within the year ending December 31, 2017. Comments are due by May 29, 2015.

During April 2015, the Financial Accounting Standards Board issued Accounting Standards Update 2015-03 (“ASU 2015-03”) “Interest—Imputation of Interest (Subtopic 835-30) Simplifying the Presentation of Debt Issuance Costs”, which simplifies the presentation of debt issuance costs by requiring debt issuance costs (e.g., legal fees, printing costs) to be presented as a deduction from the corresponding debt liability rather than as assets, as under current guidance. ASU 2015-03 will make the presentation of debt issuance costs consistent with the presentation of debt discounts or premiums resulting from the difference between the net proceeds received upon debt issuance and the amount payable at maturity, which is presented as a direct deduction from or an addition to the face amount of the debt. ASU 2015-03 is effective for the Company for financial statements issued for periods beginning on January 1, 2016, including interim periods. Early adoption of ASU 2015-03 is permitted for financial statements that have not been previously issued. If the Company issues debt before January 1, 2016, it will decide whether to early adopt ASU 2015-03. Upon adoption, the Company must apply the new guidance retrospectively to all prior periods presented in the financial statements. The Company does not expect the adoption of ASU 2015-03 to have a material effect on its financial position, results of operations or cash flows.

Reclassifications

Reclassifications

Certain revenue amounting to $27 within the Statement of Operations for the three months ended March 31, 2014 has been reclassified from Collaborative revenue to Clinical compound revenue to conform to the current year presentation.

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Condensed Statements of Operations (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Revenue:
Collaborative revenue	$ 489	$ 151
Clinical compound revenue		27
Total revenue	489	178
Operating expenses:
Research and development	3,385	2,201
General and administrative	1,822	1,398
Total operating expenses	5,207	3,599
Operating loss	(4,718)	(3,421)
Interest income	14	22
Loss before benefit from income taxes	(4,704)	(3,399)
Benefit from income taxes	15	16
Net loss	$ (4,689)	$ (3,383)
Net loss per share:
Basic and Diluted	$ (0.21)	$ (0.22)
Weighted average shares:
Basic and Diluted	22,808,479	15,654,079

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Collaborations

3 Months Ended

Mar. 31, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Collaborations

5. Collaborations

Maruishi Pharmaceutical Co., Ltd.

In April 2013, the Company entered into a license agreement with Maruishi under which the Company granted Maruishi an exclusive license to develop, manufacture, and commercialize drug products containing CR845 for acute pain and uremic pruritus in Japan. The Company and Maruishi are responsible to use commercially reasonable efforts, at their own expense, to develop, obtain regulatory approval for and commercialize CR845 in the United States and Japan, respectively. In addition, the Company will provide Maruishi specific clinical development services for CR845 used in Maruishi’s field of use.

The Company has identified two deliverables under ASC 605-25, Revenue Recognition—Multiple Element Arrangements: (1) the license; and (2) the R&D services specific to the uremic pruritus field of use. The Company has determined that the license has standalone value because Maruishi has the right to sublicense and manufacture CR845 in Japan. The second deliverable is the R&D services, which also have standalone value as similar services are sold separately by other vendors. Since both the license and the R&D services separability criteria have been met, they are being accounted for as separate units of accounting at the outset of the arrangement.

Along with the R&D services performed by the Company for Maruishi, the Company supplies Maruishi with CR845 clinical material as an accommodation. The Company had previously entered into manufacturing and service agreements with third parties to manufacture CR845. Payments made by the Company to third parties based on firm and fixed commitments by Maruishi to purchase CR845 from the Company are capitalized as prepaid expense. During the manufacturing process, title and risk of loss remains with the third party until the Company has paid in full for the material.

Once the Company has title to the CR845 and has delivered it to Maruishi, prepaid expense related to that CR845 is reduced with an offset to R&D expense. At that time, Maruishi reimburses the Company for its external and internal costs for purchasing CR845 and processing the sale to Maruishi and the Company recognizes clinical compound revenue for the reimbursement amount. Deposits received from Maruishi prior to delivery of CR845 are recorded as deferred revenue.

Under the terms of the license agreement, the Company is also entitled to receive aggregate milestone payments of $8,000 for events performed by Maruishi in Japan and $2,500 for events performed by the Company in the U.S. At the time of execution of this license agreement, there was significant uncertainty as to whether the stated milestones would be achieved. In conjunction with this uncertainty, the Company has determined that the milestones achieved in the U.S. are substantive in nature as they are commensurate with the enhancement of value of the delivered license as they relate to clinical success and advancement within the FDA drug development platform. The Company will account for those milestone payments under ASC 605 Revenue Recognition – Milestone Method. However, the milestones achieved by Maruishi in Japan are not substantive and will be accounted for as contingent consideration.

The next potential milestone that the Company could be entitled to receive under the Maruishi license agreement will be a clinical development milestone for initiation of a Phase 1 clinical trial in Japan for a certain indication. If achieved, this milestone will result in a $2,000 payment being due to the Company.

As of March 31, 2015 and December 31, 2014, the Company had $963 and $1,452, respectively, of deferred revenue pursuant to the R&D services deliverable under the license agreement with Maruishi.

During the three months ended March 31, 2015 and 2014, the Company recognized $489 and $151, respectively, of collaborative revenue from the amortization of deferred revenue arising from the portion of the upfront payment received pursuant to the license agreement with Maruishi that was allocated to the R&D services deliverable and $0 and $27, respectively, of clinical compound revenue from the sale of CR845 clinical compound to Maruishi.

The Company incurred clinical trial costs related to the R&D services deliverable of $599 and $398 during the three months ended March 31, 2015 and 2014, respectively.

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Prepaid expenses

3 Months Ended

Mar. 31, 2015

Text Block [Abstract]

Prepaid expenses

4. Prepaid expenses

As of March 31, 2015, prepaid expenses were $1,420, consisting of $619 of prepaid insurance, $741 of research and development (“R&D”) clinical costs and $60 of other costs. As of December 31, 2014, prepaid expenses were $287, consisting of $92 of prepaid insurance, $177 of prepaid R&D clinical costs and $18 of other costs.

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Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2015

Commitments and Contingencies Disclosure [Abstract]

Schedule of Contractual Obligations and Commitments

Contractual obligations and commitments as of March 31, 2015 were as follows:

	Payment Due for the Year Ending December 31,
	2015		2016		2017		2018		Thereafter		Total
Operating lease (1)	$	665	$	913	$	740	$	—	$	—	$	2,318

(1) The Company leases its operating facility located in Shelton, Connecticut.

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Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2015

Fair Value Disclosures [Abstract]

Summary of Financial Assets Measured at Fair Value on Recurring Basis

The following table summarizes the financial assets measured at fair value on a recurring basis as of March 31, 2015 and December 31, 2014.

	March 31, 2015		December 31, 2014
	Level 1		Level 1
Financial assets
Cash equivalents:
Money market savings account	$	46,962	$	52,663
Restricted cash:
Bank certificate of deposit		700		700
Total	$	47,662	$	53,363

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Stock-Based Compensation

3 Months Ended

Mar. 31, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock-Based Compensation

8. Stock-Based Compensation

2014 Equity Incentive Plan

The Company’s 2014 Equity Incentive Plan (the “2014 Plan”) is administered by the Company’s Board of Directors or a duly authorized committee thereof (the “Plan administrator”). The 2014 Plan provides for the grant of incentive stock options, non-statutory stock options, restricted stock awards, restricted stock unit awards, stock appreciation rights, performance stock awards and other forms of equity compensation (collectively, “Stock Awards”). Additionally, the 2014 Plan provides for the grant of performance cash awards. Incentive stock options may be granted only to employees. All other awards may be granted to employees, including officers, non-employee directors, and consultants. No incentive stock options may be granted under the 2014 Plan after the tenth anniversary of the effective date of the 2014 Plan. Stock Awards granted under the 2014 Plan vest at the rate specified by the Plan administrator, which, to date, has been 25% on the first anniversary of the date of grant and the balance ratably over the next 36 months. The Plan administrator determines the term of Stock Awards granted under the 2014 Plan up to a maximum of ten years.

The aggregate number of shares of the Company’s common stock reserved for issuance under the 2014 Plan will automatically increase on January 1 of each year, beginning on January 1, 2015 and continuing through and including January 1, 2024, by 3% of the total number of shares of the Company’s capital stock outstanding on December 31 of the preceding calendar year, or a lesser number of shares determined by the Company’s Board of Directors. On January 1, 2015, the aggregate number of shares of common stock that may be issued pursuant to stock awards under the Company’s 2014 Equity Incentive Plan automatically increased from 1,600,000 to 2,284,061. The maximum number of shares that may be issued pursuant to the exercise of incentive stock options under the 2014 Plan is 30,000,000 shares.

Under the 2014 Plan, the Company granted 295,000 and 387,000 stock options during the three months ended March 31, 2015 and 2014, respectively. The fair values of stock options granted during the three months ended March 31, 2015 and 2014 were estimated as of the dates of grant using the Black-Scholes option pricing model with the following assumptions:

	Three Months Ended March 31,
	2015	2014
Risk-free interest rate	1.43% - 1.70%	2.19% - 2.72%
Expected volatility	65% - 67%	67% - 71%
Expected dividend yield	0%	0%
Expected life of employee options (in years)	6.25	6.25
Expected life of nonemployee options (in years)	10	10

The weighted average grant date fair value of options granted to employees during the three months ended March 31, 2015 was $6.23. The weighted average grant date fair value of options granted to employees and members of the Board of Directors for their Board service during the three months ended March 31, 2014 was $6.88. The weighted average fair value of outstanding vested options that had been granted to nonemployee consultants as re-measured during the three months ended March 31, 2015 and 2014, in accordance with ASC 505-50, was $7.22 and $14.37, respectively.

During the three months ended March 31, 2015 and 2014, the Company recognized compensation expense relating to stock options, as follows:

	Three Months Ended March 31,
	2015		2014
Research and development	$	198	$	72
General and administrative		247		281
Total stock option expense	$	445	$	353

A summary of stock option award activity under the Company’s 2014 Plan as of and for the three months ended March 31, 2015 is presented below:

	Number of Shares			Weighted Average Exercise Price
Outstanding, December 31, 2014		1,022,360		$	8.16
Granted		295,000			10.21
Exercised		(22,880	)		0.25
Outstanding, March 31, 2015		1,294,480		$	8.77
Options exercisable, March 31, 2015		366,349		$	4.32

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Accounts Payable and Accrued Expenses

3 Months Ended

Mar. 31, 2015

Payables and Accruals [Abstract]

Accounts Payable and Accrued Expenses

6. Accounts Payable and Accrued Expenses

Accounts payable and accrued expenses consist of the following:

	March 31, 2015		December 31, 2014
Accounts payable	$	938	$	515
Accrued research projects		841		549
Accrued professional fees		278		266
Accrued compensation and benefits		350		504
Accrued other		57		112
Total	$	2,464	$	1,946

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Net Loss Per Share

3 Months Ended

Mar. 31, 2015

Earnings Per Share [Abstract]

Net Loss Per Share

7. Net Loss Per Share

The Company computes basic net income (loss) per share by dividing net income (loss) by the weighted average number of shares of common stock outstanding. Diluted net income per share includes the potential dilutive effect of common stock equivalents as if such securities were converted or exercised during the period, when the effect is dilutive. Common stock equivalents include convertible preferred stock, and outstanding stock options and stock warrants, which are included using the treasury stock method when dilutive. The computation of diluted net loss per share does not include common stock equivalents since such inclusion would be anti-dilutive. For the three months ended March 31, 2015 and 2014, the Company excluded the effects of potentially dilutive shares that were outstanding during those respective periods from the denominator as their inclusion would be anti-dilutive due to the Company’s net losses during those periods.

The denominators used in the net loss per share computations are as follows:

	Three Months Ended March 31,
	2015		2014
Basic:
Weighted average common shares outstanding		22,808,479		15,654,079
Diluted:
Weighted average common shares outstanding -Basic		22,808,479		15,654,079
Common stock options*		—		—
Common stock warrants*		—		—
Convertible preferred stock*		—		—
Denominator for diluted net loss per share		22,808,479		15,654,079

* No amounts were considered as their effects would be anti-dilutive.

Basic and diluted net loss per share are computed as follows:

	Three Months Ended March 31,
	2015			2014
Net loss	$	(4,689	)	$	(3,383	)
Weighted-average common shares outstanding:
Basic and Diluted		22,808,479			15,654,079
Net loss per share, Basic and Diluted	$	(0.21	)	$	(0.22	)

Securities outstanding at the end of the respective periods presented below, that could potentially dilute basic earnings per share in the future, that were not included in the computation of diluted net loss per share because to do so would have been anti-dilutive are as follows:

	March 31,
	2015		2014
Common stock options		1,294,480		877,160
Common stock warrants		—		19,851
Total		1,294,480		897,011

All common stock warrants were exercised in a net exercise on July 31, 2014 (see Note 8, Long-Term Debt, in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014).

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Income Taxes

3 Months Ended

Mar. 31, 2015

Income Tax Disclosure [Abstract]

Income Taxes

9. Income Taxes

For the three months ended March 31, 2015 and 2014, pre-tax losses were $4,704 and $3,399, respectively. The Company recognized a full tax valuation allowance against net deferred tax assets at March 31, 2015 and December 31, 2014.

The benefit from income taxes of $15 and $16 for the three months ended March 31, 2015 and 2014, respectively, relates to state research and development tax credits exchanged for cash pursuant to the Connecticut Research and Development Tax Credit Exchange Program, which permits qualified small businesses engaged in research and development activities within Connecticut to exchange their unused research and development tax credits for a cash amount equal to 65% of the value of the exchanged credits.

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Stock-Based Compensation - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Jan. 01, 2015	Dec. 31, 2014
Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of options granted	6.23
Employees and Members of Board of Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of options granted		6.88
Nonemployee Consultants [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average fair value of outstanding vested options	7.22	14.37
2014 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of stock options that may be granted after the tenth anniversary of the 2014 Plan	0
Annual increase in number of shares reserved for issuance as a percentage of shares of capital stock outstanding through January 1, 2024	3.00%
Share-based compensation arrangement by share-based payment award, number of shares authorized			2,284,061	1,600,000
Options granted	295,000	387,000
2014 Equity Incentive Plan [Member] | Share-Based Compensation Award, Tranche One [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of vested shares on first anniversary of grant date	25.00%
2014 Equity Incentive Plan [Member] | Share-based Compensation Award, Tranche Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period of awards granted	36 months
2014 Equity Incentive Plan [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Term of awards granted	10 years
2014 Equity Incentive Plan [Member] | Incentive Stock Options [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, number of shares authorized	30,000,000

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Net Loss Per Share (Tables)

3 Months Ended

Mar. 31, 2015

Earnings Per Share [Abstract]

Computation of Denominators Used in Net Loss Per Share

The denominators used in the net loss per share computations are as follows:

	Three Months Ended March 31,
	2015		2014
Basic:
Weighted average common shares outstanding		22,808,479		15,654,079
Diluted:
Weighted average common shares outstanding -Basic		22,808,479		15,654,079
Common stock options*		—		—
Common stock warrants*		—		—
Convertible preferred stock*		—		—
Denominator for diluted net loss per share		22,808,479		15,654,079

* No amounts were considered as their effects would be anti-dilutive.

Computation of Basic and Diluted Net Loss Per Share

Basic and diluted net loss per share are computed as follows:

	Three Months Ended March 31,
	2015			2014
Net loss	$	(4,689	)	$	(3,383	)
Weighted-average common shares outstanding:
Basic and Diluted		22,808,479			15,654,079
Net loss per share, Basic and Diluted	$	(0.21	)	$	(0.22	)

Schedule of Anti-Dilutive Common Stock Equivalents Excluded from Calculations of Diluted Net Loss Per Share

Securities outstanding at the end of the respective periods presented below, that could potentially dilute basic earnings per share in the future, that were not included in the computation of diluted net loss per share because to do so would have been anti-dilutive are as follows:

	March 31,
	2015		2014
Common stock options		1,294,480		877,160
Common stock warrants		—		19,851
Total		1,294,480		897,011

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Fair Value Measurements - Summary of Financial Assets Measured at Fair Value on Recurring Basis (Detail) (Recurring [Member], Level 1 [Member], USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Financial assets
Total	$ 47,662	$ 53,363
Money Market Savings Account [Member]
Financial assets
Cash equivalents	46,962	52,663
Bank Certificate of Deposit [Member]
Financial assets
Restricted cash	$ 700	$ 700

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Condensed Statements of Convertible Preferred Stock and Stockholders' (Deficit) Equity (USD $) In Thousands, except Share data	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Convertible Preferred Stock [Member]
Balance, Value at Dec. 31, 2013					$ 65,586
Balance, Value at Dec. 31, 2013	(54,075)	4	8,377	(62,456)
Balance, Shares at Dec. 31, 2013					29,186,929
Balance, Shares at Dec. 31, 2013		4,288,243
Preferred stock converted to common shares, Value	65,586	13	65,573		(65,586)
Preferred stock converted to common shares, Shares		12,554,171			(29,186,929)
Sale of common stock in initial public offering, net of underwriting discounts and commissions and offering expenses, Value	56,247	6	56,241
Sale of common stock in initial public offering, net of underwriting discounts and commissions and offering expenses, Shares		5,750,000
Stock-based compensation expense	353		353
Net loss	(3,383)			(3,383)
Balance, Value at Mar. 31, 2014	64,728	23	130,544	(65,839)
Balance, Shares at Mar. 31, 2014		22,592,414
Balance, Value at Dec. 31, 2014	51,662	23	131,840	(80,201)
Balance, Shares at Dec. 31, 2014		22,802,039
Stock-based compensation expense	445		445
Shares issued upon exercise of stock options, Value	6		6
Shares issued upon exercise of stock options, Shares		22,880
Net loss	(4,689)			(4,689)
Balance, Value at Mar. 31, 2015	$ 47,424	$ 23	$ 132,291	$ (84,890)
Balance, Shares at Mar. 31, 2015		22,824,919

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Fair Value Measurements

3 Months Ended

Mar. 31, 2015

Fair Value Disclosures [Abstract]

Fair Value Measurements

3. Fair Value Measurements

As of March 31, 2015 and December 31, 2014, the Company’s financial instruments consisted of cash and cash equivalents, restricted cash, accounts payable and accrued liabilities. The carrying amount of each of those financial instruments is generally considered to be representative of their respective fair values because of the short-term nature of those instruments.

Current accounting guidance defines fair value, establishes a framework for measuring fair value in accordance with Accounting Standards Codification (“ASC”) section 820, and requires certain disclosures about fair value measurements.

The valuation techniques included in the guidance are based on observable and unobservable inputs. Observable inputs reflect readily obtainable data from independent sources, while unobservable inputs reflect market assumptions and are classified into the following fair value hierarchy:

• Level 1 – Observable inputs – quoted prices in active markets for identical assets and liabilities.

• Level 2 – Observable inputs other than the quoted prices in active markets for identical assets and liabilities – such as quoted prices for similar instruments, quoted prices for identical or similar instruments in inactive markets, or other inputs that are observable or can be corroborated by observable market data.

• Level 3 – Unobservable inputs – includes amounts derived from valuation models where one or more significant inputs are unobservable and require the Company to develop relevant assumptions.

The following table summarizes the financial assets measured at fair value on a recurring basis as of March 31, 2015 and December 31, 2014.

	March 31, 2015		December 31, 2014
	Level 1		Level 1
Financial assets
Cash equivalents:
Money market savings account	$	46,962	$	52,663
Restricted cash:
Bank certificate of deposit		700		700
Total	$	47,662	$	53,363

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Prepaid Expenses - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Prepaid expenses	$ 1,420	$ 287
Prepaid insurance	619	92
Prepaid R&D clinical costs	741	177
Other costs	$ 60	$ 18

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Income Taxes - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Income Tax Disclosure [Abstract]
Pre-tax losses	$ 4,704	$ 3,399
Benefit from income taxes	$ 15	$ 16
Percentage of value of research and development tax credits exchanged for cash	65.00%

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Accounts Payable and Accrued Expenses (Tables)

3 Months Ended

Mar. 31, 2015

Payables and Accruals [Abstract]

Schedule of Accounts Payable and Accrued Expenses

Accounts payable and accrued expenses consist of the following:

	March 31, 2015		December 31, 2014
Accounts payable	$	938	$	515
Accrued research projects		841		549
Accrued professional fees		278		266
Accrued compensation and benefits		350		504
Accrued other		57		112
Total	$	2,464	$	1,946