UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-Q

(Mark One)

☒ QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended June 30, 2023

☐ TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from             to            

COMMISSION FILE NUMBER 001-35558

CARDIFF ONCOLOGY, INC.

(Exact Name of registrant as specified in its charter)

Delaware	27-2004382
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
11055 Flintkote Avenue, San Diego, California	92121
(Address of principal executive offices)	(Zip Code)
(858) 952-7570
(Registrant’s telephone number, including area code)

Title of each class:	Trading Symbol(s)	Name of each exchange on which registered:
Common Stock	CRDF	Nasdaq Capital Market

Indicate by check mark whether the issuer (1) filed all reports required to be filed by Section 13 or 15(d) of the Exchange Act during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒   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). Yes ☒   No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer ☐ Accelerated filer ☐  Non-accelerated filer ☒
Smaller reporting company ☒ Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

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

As of August 3, 2023, the issuer had 44,677,169 shares of Common Stock issued and outstanding.

CARDIFF ONCOLOGY, INC.

Table of Contents

		Page
PART I	FINANCIAL INFORMATION
Item 1.	Financial Statements (unaudited)
	Condensed Balance Sheets	3
	Condensed Statements of Operations	4
	Condensed Statements of Comprehensive Loss	5
	Condensed Statements of Stockholders’ Equity	6
	Condensed Statements of Cash Flows	7
	Notes to Condensed Financial Statements	8
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	17
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	23
Item 4.	Controls and Procedures	23
PART II	OTHER INFORMATION
Item 1.	Legal Proceedings	24
Item 1A.	Risk Factors	24
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	24
Item 3.	Defaults Upon Senior Securities	24
Item 4.	Mine Safety Disclosures	24
Item 5.	Other Information	24
Item 6.	Exhibits	24
SIGNATURES

2

PART I. FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS

CARDIFF ONCOLOGY, INC. 

CONDENSED BALANCE SHEETS

(in thousands, except par value)

(Unaudited)

	June 30, 2023		December 31, 2022
Assets
Current assets:
Cash and cash equivalents	$	19,369	$	16,347
Short-term investments	70,059		88,920
Accounts receivable and unbilled receivable	161		771
Prepaid expenses and other current assets	3,142		5,246
Total current assets	92,731		111,284
Property and equipment, net	1,356		1,269
Operating lease right-of-use assets	1,978		2,251
Other assets	1,390		1,387
Total Assets	$	97,455	$	116,191
Liabilities and Stockholders’ Equity
Current liabilities:
Accounts payable	$	2,939	$	1,956
Accrued liabilities	5,501		5,177
Operating lease liabilities	683		675
Total current liabilities	9,123		7,808
Operating lease liabilities, net of current portion	1,753		2,040
Total Liabilities	10,876		9,848
Commitments and contingencies (Note 7)
Stockholders’ equity
Preferred stock, 20,000 shares authorized; Series A Convertible Preferred Stock liquidation preference $1,056 and $1,044 at June 30, 2023 and December 31, 2022, respectively (Note 6)	—		—
Common stock, $0.0001 par value, 150,000 shares authorized; 44,677 shares issued and outstanding at June 30, 2023 and December 31, 2022	4		4
Additional paid-in capital	407,479		404,834
Accumulated other comprehensive loss	(431)		(395)
Accumulated deficit	(320,473)		(298,100)
Total stockholders’ equity	86,579		106,343
Total liabilities and stockholders’ equity	$	97,455	$	116,191

See accompanying notes to the unaudited condensed financial statements.

3

CARDIFF ONCOLOGY, INC.

CONDENSED STATEMENTS OF OPERATIONS

(in thousands, except per share amounts)

(Unaudited)

	Three Months Ended June 30,				Six Months Ended June 30,
	2023		2022		2023		2022
Royalty revenues	$	108	$	91	$	191	$	165
Costs and expenses:
Research and development	8,020		7,448		17,072		14,656
Selling, general and administrative	4,296		3,086		7,379		7,026
Total operating expenses	12,316		10,534		24,451		21,682
Loss from operations	(12,208)		(10,443)		(24,260)		(21,517)
Other income (expense), net:
Interest income, net	1,053		253		1,993		383
Other income (expense), net	5		(253)		(106)		(302)
Total other income (expense), net	1,058		—		1,887		81
Net loss	(11,150)		(10,443)		(22,373)		(21,436)
Preferred stock dividend payable on Series A Convertible Preferred Stock	(6)		(6)		(12)		(12)
Net loss attributable to common stockholders	$	(11,156)	$	(10,449)	$	(22,385)	$	(21,448)
Net loss per common share — basic and diluted	$	(0.25)	$	(0.24)	$	(0.50)	$	(0.50)
Weighted-average shares outstanding — basic and diluted	44,677		43,306		44,677		43,269

See accompanying notes to the unaudited condensed financial statements.

4

CARDIFF ONCOLOGY, INC.

CONDENSED STATEMENTS OF COMPREHENSIVE LOSS

(in thousands)

(Unaudited)

	Three Months Ended June 30,				Six Months Ended June 30,
	2023		2022		2023		2022
Net loss	$	(11,150)	$	(10,443)	$	(22,373)	$	(21,436)
Other comprehensive loss:
Unrealized loss on securities available-for-sale	(355)		(234)		(36)		(840)
Total comprehensive loss	(11,505)		(10,677)		(22,409)		(22,276)
Preferred stock dividend payable on Series A Convertible Preferred Stock	(6)		(6)		(12)		(12)
Comprehensive loss attributable to common stockholders	$	(11,511)	$	(10,683)	$	(22,421)	$	(22,288)

See accompanying notes to the unaudited condensed financial statements.

5

CARDIFF ONCOLOGY, INC.

CONDENSED STATEMENTS OF STOCKHOLDERS’ EQUITY

(in thousands)

(Unaudited)

	Preferred Stock Shares	Preferred Stock Amount		Common Stock Shares	Common Stock Amount		Additional Paid-In Capital		Accumulated Other Comprehensive Loss		Accumulated Deficit		Total Stockholders’ Equity
Balance, January 1, 2023	61	$	—	44,677	$	4	$	404,834	$	(395)	$	(298,100)	$	106,343
Stock-based compensation	—	—		—	—		1,064		—		—		1,064
Other comprehensive gain	—	—		—	—		—		319		—		319
Net loss	—	—		—	—		—		—		(11,223)		(11,223)
Balance, March 31, 2023	61	$	—	44,677	$	4	$	405,898	$	(76)	$	(309,323)	$	96,503
Stock-based compensation	—	—		—	—		1,581		—		—		1,581
Other comprehensive loss	—	—		—	—		—		(355)		—		(355)
Net loss	—	—		—	—		—		—		(11,150)		(11,150)
Balance, June 30, 2023	61	$	—	44,677	$	4	$	407,479	$	(431)	$	(320,473)	$	86,579

	Preferred Stock Shares	Preferred Stock Amount		Common Stock Shares	Common Stock Amount		Additional Paid-In Capital		Service Receivable		Accumulated Other Comprehensive Loss		Accumulated Deficit		Total Stockholders’ Equity
Balance, January 1, 2022	716	$	1	41,964	$	4	$	400,503	$	(139)	$	(142)	$	(259,810)	$	140,417
Stock-based compensation	—	—		—	—		1,152		—		—		—		1,152
Other comprehensive loss	—	—		—	—		—		—		(606)		—		(606)
Issuance of common stock upon conversion of Series E Convertible Preferred Stock	(328)	(1)		1,342	—		—		—		—		—		(1)
Preferred stock dividend	—	—		—	—		—		—		—		(6)		(6)
Release of clinical trial funding commitment	—	—		—	—		—		139		—		—		139
Net loss	—	—		—	—		—		—		—		(10,993)		(10,993)
Balance, March 31, 2022	388	$	—	43,306	$	4	$	401,655	$	—	$	(748)	$	(270,809)	$	130,102
Stock-based compensation	—	—		—	—		1,055		—		—		—		1,055
Other comprehensive loss	—	—		—	—		—		—		(234)		—		(234)
Preferred stock dividend	—	—		—	—		—		—		—		(6)		(6)
Net loss	—	—		—	—		—		—		—		(10,443)		(10,443)
Balance, June 30, 2022	388	$	—	43,306	$	4	$	402,710	$	—	$	(982)	$	(281,258)	$	120,474

See accompanying notes to the unaudited condensed financial statements.

6

CARDIFF ONCOLOGY, INC. 

CONDENSED STATEMENTS OF CASH FLOWS

(in thousands)

(Unaudited)

	Six Months Ended June 30,
	2023		2022
Operating activities
Net loss	$	(22,373)	$	(21,436)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	188		69
Stock-based compensation expense	2,645		2,207
Amortization of premiums (discounts) on short-term investments	(405)		557
Release of clinical trial funding commitment	—		139
Changes in operating assets and liabilities:
Other assets	(3)		54
Accounts receivable and unbilled receivable	610		(16)
Prepaid expenses and other assets	2,260		18
Operating lease right-of-use assets	273		272
Accounts payable and accrued expenses	1,293		1,367
Operating lease liabilities	(279)		(143)
Other liabilities	—		(32)
Net cash used in operating activities	(15,791)		(16,944)
Investing activities:
Capital expenditures	(259)		(483)
Insurance proceeds from casualty loss	—		71
Maturities of short-term investments	68,265		48,801
Purchases of short-term investments	(50,868)		(57,309)
Sales of short-term investments	1,675		34,886
Net cash provided by investing activities	18,813		25,966
Financing activities:
Net cash provided by financing activities	—		—
Net change in cash and cash equivalents	3,022		9,022
Cash and cash equivalents—Beginning of period	16,347		11,943
Cash and cash equivalents—End of period	$	19,369	$	20,965
Supplementary disclosure of cash flow activity:
Cash paid for taxes	$	1	$	1
Supplemental disclosure of non-cash investing and financing activities:
Acquisition of property and equipment included in accounts payable and accrued expenses	$	16	$	456
Acquisition of property and equipment included in insurance proceeds receivable	$	—	$	43

See accompanying notes to the unaudited condensed financial statements.

7

CARDIFF ONCOLOGY, INC. 

NOTES TO CONDENSED FINANCIAL STATEMENTS

(Unaudited)

1. Organization and Basis of Presentation

Business Organization and Overview

Cardiff Oncology, Inc. (“Cardiff Oncology” or the “Company”) headquartered in San Diego, California, is a clinical-stage biotechnology company leveraging Polo-like Kinase 1 (“PLK1”) inhibition to develop novel therapies across a range of cancers. The Company’s lead asset is onvansertib, a PLK1 inhibitor that is being evaluated in combination with standard-of-care therapies in clinical programs targeting indications such as RAS-mutated metastatic colorectal cancer, metastatic pancreatic cancer, as well as investigator-initiated trials in triple negative breast cancer and small cell lung cancer. These programs and the Company’s broader development strategy are designed to target tumor vulnerabilities in order to overcome treatment resistance and deliver superior clinical benefit compared to the standard-of-care alone. The Company's common stock is listed on the Nasdaq Capital Market under the ticker symbol "CRDF".

Basis of Presentation

The accompanying unaudited interim condensed financial statements of Cardiff Oncology have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) and the rules and regulations of the Securities and Exchange Commission (“SEC”) related to a quarterly report on Form 10-Q. Certain information and note disclosures normally included in annual financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to those rules and regulations. The unaudited interim condensed financial statements reflect all adjustments consisting of normal recurring adjustments which, in the opinion of management, are necessary for a fair statement of the Company’s financial position and the results of its operations and cash flows for the periods presented. The unaudited condensed balance sheet at December 31, 2022, has been derived from the audited financial statements at that date but does not include all of the information and disclosures required by GAAP for annual financial statements. The operating results presented in these unaudited interim condensed financial statements are not necessarily indicative of the results that may be expected for any future periods. These unaudited interim condensed financial statements should be read in conjunction with the audited financial statements and the notes thereto for the year ended December 31, 2022, included in the Company’s annual report on Form 10-K filed with the SEC on March 2, 2023.

Liquidity

The Company has incurred net losses since its inception and has negative operating cash flows. As of June 30, 2023, the Company had $89.4 million in cash, cash equivalents and short-term investments and believes it has sufficient cash to meet its funding requirements for at least the next 12 months following the issuance date of these financial statements.

For the foreseeable future, the Company expects to continue to incur losses and require additional capital to further advance its clinical trial programs and support its other operations. The Company cannot be certain that additional funding will be available on acceptable terms, or at all. To the extent that the Company can raise additional funds by issuing equity securities, the Company’s stockholders may experience additional dilution.

2. Summary of Significant Accounting Policies

During the six months ended June 30, 2023, there have been no changes to the Company’s significant accounting policies as described in its Annual Report on Form 10-K for the fiscal year ended December 31, 2022.

Net Loss Per Share

Basic and diluted net loss per common share is determined by dividing net loss applicable to common stockholders by the weighted-average common shares outstanding during the period. Preferred dividends are included in net loss attributable to common stockholders in the computation of basic and diluted earnings per share.

8

The following table sets forth the outstanding potentially dilutive securities that have been excluded in the calculation of diluted net loss per share because their effect was anti-dilutive:

	June 30,
	2023	2022
Options to purchase Common Stock	6,603,661	5,131,195
Warrants to purchase Common Stock	2,807,948	4,490,159
Series A Convertible Preferred Stock	877	877
Series E Convertible Preferred Stock	—	1,342,250
	9,412,486	10,964,481

Recent Accounting Pronouncement Not Yet Adopted

In August 2020, the FASB issued ASU No. 2020-06 ("ASU 2020-06"), Debt - Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging - Contracts in Entity’s Own Equity (Subtopic 815-40) (“ASU 2020-06”). ASU 2020-06 eliminates the beneficial conversion and cash conversion accounting models for convertible instruments. It also amends the accounting for certain contracts in an entity’s own equity that are currently accounted for as derivatives because of specific settlement provisions. In addition, ASU 2020-06 modifies how particular convertible instruments and certain contracts that may be settled in cash or shares impact the diluted EPS computation. The amendments in this update are effective for public business entities for fiscal years beginning after December 15, 2021 (or December 15, 2023, for companies who meet the SEC definition of Smaller Reporting Companies), and interim periods within those fiscal years. The amendment is to be adopted through either a fully retrospective or modified retrospective method of transition. Early adoption is permitted. The Company is currently evaluating the impact of this standard on its financial statements and related disclosures, and will adopt this standard on January 1, 2024.

3. Fair Value Measurements

The following table presents the Company’s assets and liabilities that are measured and recognized at fair value on a recurring basis classified under the appropriate level of the fair value hierarchy as of June 30, 2023, and December 31, 2022:

	Fair Value Measurements at June 30, 2023
(in thousands)	Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
Assets:
Money market fund	$	18,792	$	—	$	—	$	18,792
Total included in cash and cash equivalents	18,792		—		—		18,792
Available for sale investments:
Certificate of deposit	—		7,991		—		7,991
Corporate debt securities	—		23,062		—		23,062
Commercial paper	—		11,089		—		11,089
U.S. government agencies	—		7,802				7,802
U.S. treasury securities	20,115		—		—		20,115
Total available for sale investments	20,115		49,944		—		70,059
Total assets measured at fair value on a recurring basis	$	38,907	$	49,944	$	—	$	88,851

9

	Fair Value Measurements at December 31, 2022
(in thousands)	Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
Assets:
Money market fund	$	15,722	$	—	$	—	$	15,722
Total included in cash and cash equivalents	15,722		—		—		15,722
Available for sale investments:
Certificate of deposit	—		16,023		—		16,023
Corporate debt securities	—		49,535		—		49,535
Commercial paper	—		13,187		—		13,187
U.S. government agencies	—		2,288		—		2,288
U.S. treasury securities	7,887		—		—		7,887
Total available for sale investments	7,887		81,033		—		88,920
Total assets measured at fair value on a recurring basis	$	23,609	$	81,033	$	—	$	104,642

The Company’s policy is to recognize transfers between levels of the fair value hierarchy on the date of the event or change in circumstances that caused the transfer. There were no transfers into or out of Level 3 during the six months ended June 30, 2023.

10

4. Supplementary Balance Sheet Information

Investments available for sale

Investments available for sale consist of the following:

	As of June 30, 2023
(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Market Value
Maturity less than 1 year:
Certificate of deposit	$	8,005	$	—	$	(14)	$	7,991
Corporate debt securities	14,465		5		(53)		14,417
Commercial paper	11,102		—		(13)		11,089
U.S. government agencies	7,841		—		(39)		7,802
Total maturity less than 1 year	41,413		5		(119)		41,299
Maturity 1 to 2 years:
Corporate debt securities	8,711		16		(82)		8,645
U.S. treasury securities	20,366		—		(251)		20,115
Total maturity 1 to 2 years	29,077		16		(333)		28,760
Total short-term investments	$	70,490	$	21	$	(452)	$	70,059

	As of December 31, 2022
(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Market Value
Maturity less than 1 year:
Certificate of deposit	$	16,101	$	3	$	(81)	$	16,023
Corporate debt securities	44,806		8		(275)		44,539
Commercial paper	13,203		4		(20)		13,187
Non U.S. government	2,284		4		—		2,288
U.S. treasury securities	7,905		—		(18)		7,887
Total maturity less than 1 year	84,299		19		(394)		83,924
Maturity 1 to 2 years:
Corporate debt securities	5,016		1		(21)		4,996
Total maturity 1 to 2 years	5,016		1		(21)		4,996
Total short-term investments	$	89,315	$	20	$	(415)	$	88,920

We periodically review our portfolio of debt securities to determine if any investment is impaired due to credit loss or other potential valuation concerns. For debt securities where the fair value of the investment is less than the amortized cost basis, we have assessed at the individual security level for various quantitative factors including, but not limited to, the nature of the investments, changes in credit ratings, interest rate fluctuations, industry analyst reports, and the severity of impairment. Unrealized losses in investments available for sale debt securities at June 30, 2023, were substantially due to increases in interest rates, not due to increased credit risks associated with specific securities. Accordingly, we have not recorded an allowance for credit losses. It is not more likely than not that we will be required to sell the investments before recovery of their amortized cost bases, which may be at maturity.

11

Investments available for sale that have been in a continuous unrealized loss position for greater than one-year consist of the following:

	As of June 30, 2023
(in thousands)	Fair Market Value		Gross Unrealized Loss
Corporate debt securities	$	2,963	$	(24)

Property and equipment

Property and equipment consist of the following:

 

(in thousands)	As of June 30, 2023		As of December 31, 2022
Furniture and office equipment	$	1,081	$	1,066
Leasehold improvements	2,568		2,560
Laboratory equipment	1,264		1,056
	4,913		4,682
Less—accumulated depreciation and amortization	(3,557)		(3,413)
Property and equipment, net	$	1,356	$	1,269

Accrued Liabilities

Accrued liabilities consisted of the following:

(in thousands)	As of June 30, 2023		As of December 31, 2022
Accrued compensation	$	2,175	$	1,849
Clinical trials	2,364		2,333
Research agreements and services	543		509
Director fees	125		125
Patent, license and other fees	83		24
Other accrued liabilities	211		337
Total accrued liabilities	$	5,501	$	5,177

5. Leases

 As a lessee, the Company’s current leases include its master facility lease and immaterial equipment leases, all of which are considered operating leases.

Master Facility Lease

The Company currently leases office and lab space in San Diego that expires on February 28, 2027. The lease currently requires monthly payments of approximately $61,000 per month with 3% annual escalation.

The components of lease expense were as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands)	2023		2022		2023		2022
Operating lease cost	$	180	$	190	$	363	$	381

12

Supplemental balance sheet information related to leases was as follows:

(in thousands)	As of June 30, 2023			As of December 31, 2022
Operating lease ROU assets	$	1,978		$	2,251
Current operating lease liabilities	$	683		$	675
Non-current operating lease liabilities	1,753			2,040
Total operating lease liabilities	$	2,436		$	2,715
Weighted-average remaining lease term–operating leases	3.7 years			4.2 years
Weighted-average discount rate–operating leases	7.0		%	7.0		%

Supplemental cash flow and other information related to leases was as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands)	2023		2022		2023		2022
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	183	$	180	$	368	$	251

Total remaining annual commitments under non-cancelable lease agreements for each of the years ended December 31 are as follows:

(in thousands)
Year Ending December 31,	Operating Leases
2023 (excluding the six months ended June 30, 2023)	$	306
2024	754
2025	775
2026	796
Thereafter	136
Total future minimum lease payments	2,767
Less imputed interest	(331)
Total	$	2,436

6. Stockholders’ Equity

Stock Options

Stock-based compensation expense related to Cardiff Oncology equity awards have been recognized in operating results as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands)	2023		2022		2023		2022
Included in research and development expense	$	297	$	126	$	691	$	460
Included in selling, general and administrative expense	1,284		929		1,954		1,747
Total stock-based compensation expense	$	1,581	$	1,055	$	2,645	$	2,207

The unrecognized compensation cost related to non-vested stock options outstanding at June 30, 2023, net of estimated forfeitures, was $8.4 million, which is expected to be recognized over a weighted-average remaining vesting period of 2.5 years. The weighted-average remaining contractual term of outstanding options as of June 30, 2023, was approximately 8.4

13

years. The total fair value of stock options vested during the six months ended June 30, 2023 and 2022, were $3.2 million and $3.0 million, respectively.

The estimated fair value of stock option awards was determined on the date of grant using the Black-Scholes option valuation model with the following weighted-average assumptions during the following periods indicated:

	Six Months Ended June 30,
	2023		2022
Risk-free interest rate	3.61	%	1.87	%
Dividend yield	0	%	0	%
Expected volatility of Cardiff Oncology common stock	109	%	106	%
Expected term(1)	5.3 years		6.0 years

(1)The expected term for options granted after January 1, 2023 is estimated based on the Company's historical employee data. Prior to January 1, 2023, the Company used the "simplified method" to estimate expected term.

A summary of stock option activity and changes in stock options outstanding is presented below:

	Total Options	Weighted-Average Exercise Price Per Share		Intrinsic Value
Balance outstanding, December 31, 2022	5,069,458	$	5.92	$	19,322
Granted	2,088,608	$	1.71
Forfeited and expired	(554,405)	$	7.12
Balance outstanding, June 30, 2023	6,603,661	$	4.49	$	23,351
Exercisable at June 30, 2023	2,766,027	$	6.16	$	21,713
Vested and expected to vest at June 30, 2023	6,410,335	$	4.55	$	23,269

2021 Equity Incentive Plan

In June 2021 the Company's stockholders approved the 2021 Omnibus Equity Incentive Plan ("2021 Plan"). The number of authorized shares in the 2021 Plan is equal to the sum of (i) 3,150,000 shares, plus (ii) the number of shares of Common Stock reserved, but unissued under the 2014 Plan; and (iii) the number of shares of Common Stock underlying forfeited awards under the 2014 Plan. On June 9, 2022, the shareholders approved an increase of shares authorized in the 2021 Plan to 5,150,000 from 3,150,000. As of June 30, 2023, there were 2,013,871 shares available for issuance under the 2021 Plan.

2014 Equity Incentive Plan

Subsequent to the adoption of the 2021 Plan, no additional equity awards can be made under the terms of the 2014 Plan.

Inducement Grants

The Company issues equity awards to certain new employees as inducement grants outside of its 2021 Plan. As of June 30, 2023, an aggregate of 1,385,240 shares were issuable upon the exercise of inducement grant stock options approved by the Company.

Modification of Stock Options

In June 2023 the Company modified stock options for a departing employee. The modification resulted in an incremental stock-based compensation expense of $0.6 million during the three month period ended June 30, 2023.

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Warrants

A summary of warrant activity and changes in warrants outstanding, including both liability and equity classifications is presented below:

	Total Warrants	Weighted-Average Exercise Price Per Share		Weighted-Average Remaining Contractual Term
Balance outstanding, December 31, 2022	4,360,968	$	5.33	2.1 years
Expired	(1,553,020)	$	10.54
Balance outstanding, June 30, 2023	2,807,948	$	2.45	2.5 years

Preferred Stock

A summary of our Company's classes of preferred stock is presented below:

				Shares outstanding
Class	Par value		Shares designated	As of June 30, 2023	As of December 31, 2022
Series A Convertible Preferred Stock	$	0.001	277,100	60,600	60,600
Series B Convertible Preferred Stock	$	0.001	8,860	—	—
Series C Convertible Preferred Stock	$	0.001	200,000	—	—
Series D Convertible Preferred Stock	$	0.0001	154,670	—	—
Series E Convertible Preferred Stock	$	0.001	865,824	—	—

Subsequent to quarter-end the Company filed a certificate of elimination and the Series B, C, D & E preferred stock have been eliminated from authorized series of preferred stock.

7. Commitments and Contingencies

Executive Agreements

Certain executive agreements provide for severance payments in case of terminations without cause or certain change of control scenarios.

Research and Development Agreements

In March 2017, the Company entered into a license agreement with Nerviano which granted the Company development and commercialization rights to NMS-1286937, which Cardiff Oncology refers to as onvansertib. Terms of the agreement also provide for the Company to pay development and commercial milestones, and royalties based on sales volume. These potential development milestones include: (a) dosing of the first subject in the first Phase III Clinical Trial for the first Product, a registration enabling Phase II Clinical Trial, or after completion of a Phase II Clinical Trial that is used as the basis for an NDA submission; and (b) upon filing of the first NDA or equivalent for the first product candidate. During the six months ended June 30, 2023 and 2022 no milestone or royalty payments were made.

The Company is a party to various agreements under which it licenses technology on an exclusive basis in the field of oncology therapeutics. These agreements include License fees, Royalties and Milestone payments. The Company also has a legacy license agreement in the field of oncology diagnostics under which royalty payments are due. These royalty payments are calculated as a percent of revenue. For the six months ended June 30, 2023 and 2022, payments have not been material.

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Litigation

Cardiff Oncology does not believe that it has legal liabilities that are probable or reasonably possible that require either accrual or disclosure. From time to time, the Company may become involved in various lawsuits and legal proceedings that arise in the ordinary course of business. Litigation is subject to inherent uncertainties, and an adverse result in matters may arise from time to time that may harm the Company’s business. As of the date of this report, management believes that there are no claims against the Company, which it believes will result in a material adverse effect on the Company’s business or financial condition.

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

Forward-Looking Statements

This Quarterly Report on Form 10-Q includes forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended (the “Securities Act”) and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). All statements other than statements of historical facts contained in this Quarterly Report, including statements regarding the future financial position, business strategy and plans and objectives of management for future operations, are forward-looking statements. The words “believe,” “may,” “will,” “estimate,” “continue,” “anticipate,” “intend,” “should,” “plan,” “expect,” and similar expressions, as they relate to us, are intended to identify forward-looking statements. We have based these forward-looking statements largely on current expectations and projections about future events and financial trends that we believe may affect our financial condition, results of operations, business strategy and financial needs. These forward-looking statements are subject to a number of risks, uncertainties and assumptions.

In addition, our business and financial performance may be affected by the factors that are discussed under “Risk Factors” in the Annual Report on Form 10-K for the year ended December 31, 2022, filed on March 2, 2023. Moreover, we operate in a very competitive and rapidly changing environment. New risk factors emerge from time to time and it is not possible for us to predict all risk factors, nor can we assess the impact of all factors on our business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements.

You should not rely upon forward-looking statements as predictions of future events. We cannot assure you that the events and circumstances reflected in the forward-looking statements will be achieved or occur. Although we believe that the expectations reflected in the forward-looking statements are reasonable, we cannot guarantee future results, levels of activity, performance or achievements.

The following discussion and analysis is qualified in its entirety by, and should be read in conjunction with, the more detailed information set forth in the financial statements and the notes thereto appearing elsewhere in this Quarterly Report on Form 10-Q. This discussion should not be construed to imply that the results discussed herein will necessarily continue into the future, or that any conclusion reached herein will necessarily be indicative of actual operating results in the future. Such discussion represents only the best present assessment of our management.

Overview

We are a clinical-stage biotechnology company leveraging PLK1 inhibition, a well-validated oncology drug target, to develop novel therapies across a range of cancers with the greatest unmet medical need. Our goal is to target tumor vulnerabilities with treatment combinations of onvansertib, our oral and highly selective PLK1 inhibitor, and standard-of-care ("SoC") therapeutics. We are focusing our clinical program in indications such as RAS-mutated metastatic colorectal cancer ("mCRC") and metastatic pancreatic ductal adenocarcinoma ("mPDAC"), as well as in investigator-initiated trials in triple negative breast cancer ("TNBC") and small cell lung cancer ("SCLC"). Our clinical development programs incorporate tumor genomics and biomarker assays to refine assessment of patient response to treatment.

Our Lead Drug Candidate, Onvansertib

Onvansertib is an oral, small molecule drug candidate that is highly specific for PLK1 inhibition with a 24-hour half-life.

We believe the attributes of onvansertib described below, as well as clinical evidence of favorable safety and efficacy, with expected on-target, easy to manage and reversible side effects, may prove beneficial in addressing clinical therapeutic needs across a variety of cancers:

•Onvansertib is highly potent and highly selective against the PLK1 enzyme (IC50 = 2nM; IC50 is the concentration for 50% inhibition), compared to prior PLK1 inhibitors that were pan-inhibitors of several PLK targets. Low or no activity of onvansertib was observed on a panel of 63 kinases (IC50>500 nM), including the PLK members PLK2 and PLK3 (IC50>10,000 nM);

•Onvansertib is orally bioavailable, allowing for relative ease and flexibility of dosing.

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•Onvansertib has a relatively short drug half-life of 24 hours, allowing for flexible dosing and scheduling which has shown favorable safety and tolerability across multiple clinical trials;

In vitro studies have shown synergistic effects when onvansertib was administered in combination with different cytotoxic agents including microtubule-targeting agents, topoisomerase 1 inhibitors, antimetabolites, alkylating agents, proteasome inhibitors, kinase inhibitors, PARP inhibitors, BCL-2 inhibitors, and androgen biosynthesis inhibitors.

In addition, in vivo combination studies have confirmed the positive results obtained in vitro and synergistic effects have been observed in xenograft models of onvansertib in combination with irinotecan, 5-fluorouracil ("5-FU"), abiraterone, PARP inhibitors, venetoclax, and paclitaxel, while additive effects in combination with cytarabine or bevacizumab have been demonstrated. Combining onvansertib with standard-of-care cancer agents provides opportunities for synergy with many cancer therapies.

There are five ongoing and planned clinical trials of onvansertib: one trial (CRDF-004) in first line treatment in patients with RAS-mutated mCRC, one trial (TROV-054) in second line treatment in patients with KRAS-mutated Metastatic Colorectal Cancer ("mCRC"), one trial in second line treatment in patients with Metastatic Pancreatic Ductal Adenocarcinoma ("mPDAC"), and two investigator-initiated trials in patients with locally advanced or metastatic Triple Negative Breast Cancer ("TNBC") and relapsed Small Cell Lung Cancer ("SCLC").

CRDF-004 Clinical Trial in RAS-mutated mCRC

CRDF-004 is a Phase 2 open-label, randomized multi-center clinical trial of onvansertib in combination with standard-of-care FOLFIRI and bevacizumab or FOLFOX and bevacizumab for the first line treatment of patients with RAS-mutated mCRC. The primary objectives of the CRDF-004 trial are to evaluate onvansertib’s safety and efficacy in combination with the standard-of-care, as well as to evaluate two doses of onvansertib, 20mg and 30mg given in combination with standard-of-care, against standard-of-care alone. The primary endpoint of the trial is objective response rate. Progression-free survival and duration of response will be secondary endpoints. We expect to begin enrollment during the second half of 2023, with initial data anticipated in mid-2024. The trial is expected to enroll approximately 90 patients.

Phase 1b/2 Clinical Trial in KRAS-mutated mCRC

TROV-054 is a Phase 1b/2 open-label multi-center clinical trial of onvansertib in combination with standard-of-care FOLFIRI and bevacizumab for the second line treatment of patients with KRAS-mutated mCRC. This trial completed enrollment in October 2022.

The primary objectives of this trial are to evaluate the Dose-Limiting Toxicities ("DLTs"), maximum tolerated dose ("MTD") and recommended Phase 2 dose ("RP2D") of onvansertib in combination with FOLFIRI and bevacizumab (Phase 1b) and to continue to assess the safety and preliminary efficacy of onvansertib in combination with FOLFIRI and bevacizumab patients with KRAS-mutated mCRC (Phase 2).

The scientific rationale for this clinical trial is based on the two key principles of synthetic lethality and synergy, with the objective of demonstrating a proof-of-concept of clinical benefit within this Phase 1b/2 trial. Synthetic lethality refers to a critical vulnerability to tumor cell death by way of PLK1 inhibition within CRC tumor cells harboring KRAS mutations versus KRAS wild-type isogenic cells. Synergy occurs when the combination of multiple drugs results in an unexpected greater activity than an expected additive effect of the individual drugs. Onvansertib in combination with two DNA-damaging agents, irinotecan and 5-FU (two components of FOLFIRI), demonstrated synergy in colorectal cancer cell lines and both combinations have demonstrated significantly greater tumor growth inhibition than either drug alone in CRC in vivo models. We believe this synergy occurs because PLK1 can promote the repair of DNA damage caused by chemotherapeutic agents and by inhibiting PLK1, onvansertib leaves damaged tumor cells unable to repair DNA damage from chemotherapy and then replicate. For more information, please visit NCT03829410 at www.clinicialtrials.gov.

Data presented on August 7, 2023, provided an update of the ongoing TROV-054 Phase 1b/2 single arm clinical trial in KRAS-mutated metastatic colorectal cancer:

•Objective response rate ("ORR") across all evaluable patients was 29%, with 19 of 66 evaluable patients achieving an objective response. Responses have been observed across multiple KRAS variants;

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•Median duration of response ("mDoR") across all evaluable patients was 12.0 months (95% confidence interval ("CI"): 8.9 – not reached);

•Median progression free survival ("mPFS") across all evaluable patients was 9.3 months (95% CI: 7.8 – 14). Historical control trials of different drug combinations, including the standard-of-care ("SOC") of FOLFIRI with bevacizumab, in similar patient populations have shown ORR and mPFS of 5 – 13% and ~4.5 – 6.7 months, respectively.

•A subgroup analysis of patients who were bevacizumab naïve when they entered 2nd line therapy vs patients who had received prior bevacizumab in 1st line therapy showed that patients who were bevacizumab naïve (n=15) had an ORR of 73% and mPFS of 15 months, which is well above historical controls. In contrast, patients previously treated with bevacizumab (n=51) had an ORR of 16% and mPFS of 7.8 months.

In reviewing the TROV-054 clinical data, we originally designed the ONSEMBLE trial (CRDF-003) as the next phase of our mCRC program. Upon review of the clinical data from the bev naïve subgroup (those patients who did not receive bev in their 1st line therapy), the preclinical data on the mechanism of action and the feedback from the FDA on our clinical development strategy, we made the decision to discontinue enrollment in the ONSEMBLE trial and to initiate CRDF-004.

Phase 2 Clinical Trial in mPDAC

CRDF-001 is a Phase 2 open-label multi-center clinical trial of onvansertib in combination with nanoliposomal irinotecan (Onivyde®), leucovorin, and fluorouracil for second line treatment of patients with mPDAC, which is being conducted at six clinical trial sites across the U.S. – The Mayo Clinic Cancer Centers (Arizona, Minnesota, and Florida), Kansas University Medical Center, Inova Schar Cancer Institute, and the University of Nebraska Medical Center. The first patient was dosed in June 2021.

The objective of this trial is to assess the safety and preliminary efficacy of onvansertib in combination with nanoliposomal irinotecan (Onyvide®), 5-FU and leucovorin as a second-line treatment in patients with mPDAC who have failed 1st line gemcitabine-based therapy. The trial is expected to enroll approximately 45 patients. For more information, please visit NCT04752696 at www.clinicialtrials.gov.

Preliminary data presented on September 12, 2022 provided an update of the ongoing CRDF-001 Phase 2 open label clinical trial in mPDAC:

•Preliminary data from 5 evaluable patients showed 1 patient achieving an initial partial response ("PR") and 3 patients achieving stable disease ("SD");

•The 4 patients achieving SD or PR remain on study; the fifth evaluable patient discontinued treatment due to disease progression and an additional 3 patients remain on study awaiting their first post-baseline scan;

•Additional data is expected in mid-2023.

Phase 1b/2 Investigator-Initiated Clinical Trial in TNBC

A single-arm, Phase 1b/2 trial of onvansertib in combination with paclitaxel in patients with unresectable locally advanced or metastatic TNBC is open for enrollment at Dana Farber Cancer Institute ("DFCI"). In Phase 1b, approximately 14-16 patients will be treated with different doses of onvansertib in combination with a fixed dose of paclitaxel to determine the maximum tolerated dose and RP2D of onvansertib. In Phase 2, approximately 34 patients will be treated with the selected onvansertib RP2D in combination with paclitaxel.

The primary endpoint of Phase 2 of the trial is ORR, with PFS included as a secondary endpoint. Preliminary data from the trial are expected in the fourth-quarter of 2023 or first-quarter of 2024. For more information, please visit NCT05383196 at www.clinicialtrials.gov.

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Phase 2 Investigator-Initiated Clinical Trial in SCLC

A single-arm, two-stage, Phase 2 trial of onvansertib monotherapy in patients with relapsed SCLC is open for enrollment at the University of Pittsburgh Medical Center ("UPMC"). The trial is designed to enroll 15 patients in Stage 1, with the study proceeding to Stage 2 if 2 or more Stage 1 patients achieve an objective response. Stage 2 is designed to enroll an additional 20 patients. The primary endpoint of the trial is ORR, while key secondary endpoints include PFS and overall survival. Preliminary data from the trial are expected in mid-2023. For more information, please visit NCT05450965 at www.clinicialtrials.gov.

Recent Updates

Pfizer Ignite to Conduct CRDF-004 Clinical Trial

Pfizer Ignite will conduct the clinical activities of our new CRDF-004 trial in 1st line RAS-mutated mCRC, which expands the relationship established in November 2021 when Pfizer made an investment in Cardiff Oncology through its Pfizer Breakthrough Growth Initiative. Pfizer VP and Development head Adam Schayowitz sits on the Cardiff Oncology Scientific Advisory Board.

Critical Accounting Policies

Our accounting policies are described in ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS of our Annual Report on Form 10-K as of and for the year ended December 31, 2022, filed with the SEC on March 2, 2023. There have been no changes to our critical accounting policies since December 31, 2022.

RESULTS OF OPERATIONS

Three Months Ended June 30, 2023 and 2022

Revenues

Total revenues were $108,000 for the three months ended June 30, 2023, as compared to $91,000 for the prior period. Revenues are from our sales-based or usage-based royalties on other intellectual property licenses, unrelated to onvansertib. Revenue recognition of the royalty depends on the timing and overall sales activities of the licensees.

Research and Development Expenses

Research and development expenses consisted of the following:

	Three Months Ended June 30,
(in thousands)	2023		2022		Increase (Decrease)
Salaries and staff costs	$	1,487	$	1,069	$	418
Stock-based compensation	297		126		171
Clinical trials, outside services, and lab supplies	5,670		5,903		(233)
Facilities and other	566		350		216
Total research and development	$	8,020	$	7,448	$	572

Research and development expenses increased by $0.6 million for the three months ended June 30, 2023, compared to the same period in 2022. The overall increase in expenses was primarily related to salaries and staff costs from additional hires in senior management and our clinical operations team (research and development average headcount grew by 35% over the comparative period). The increase in facilities and other is primarily due to increased allocation of facilities cost resulting from headcount growth compared to the prior period. The decrease in clinical trials, outside services, and lab supplies was primarily related to costs incurred in the prior period related to CMC and clinical pharmacology for studies to support the development of our lead drug candidate, onvansertib.

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Selling, General and Administrative Expenses

Selling, general and administrative expenses consisted of the following:

	Three Months Ended June 30,
(in thousands)	2023		2022		Increase (Decrease)
Salaries and staff costs	$	1,358	$	792	$	566
Stock-based compensation	1,284		929		355
Outside services and professional fees	1,070		673		397
Facilities and other	584		692		(108)
Total selling, general and administrative	$	4,296	$	3,086	$	1,210

Selling, general and administrative expenses increased by $1.2 million for the three months ended June 30, 2023, compared to the same period in 2022. Salaries and staff costs increased due to an employee severance agreement. The increase in outside services and professional fees was due to additional contract review legal fees, public relations and external accounting fees.

Interest Income, Net

Interest income, net was $1.1 million for the three months ended June 30, 2023 as compared to $0.3 million for the same period of 2022. The increase in interest income was primarily due to higher interest rates on our short-term investments portfolio for the three months ended June 30, 2023 as compared to the same period of 2022.

Six Months Ended June 30, 2023 and 2022

Revenues

Total revenues were $191,000 for the six months ended June 30, 2023, as compared to $165,000 for the same period in 2022. Revenues are from our sales-based or usage-based royalties on other intellectual property licenses, unrelated to onvansertib. Revenue recognition of the royalty depends on the timing and overall sales activities of the licensees.

Research and Development Expenses

Research and development expenses consisted of the following:

	Six Months Ended June 30,
(in thousands)	2023		2022		Increase (Decrease)
Salaries and staff costs	$	2,860	$	2,130	$	730
Stock-based compensation	691		460		231
Clinical trials, outside services, and lab supplies	12,515		11,419		1,096
Facilities and other	1,006		647		359
Total research and development	$	17,072	$	14,656	$	2,416

Research and development expenses increased by $2.4 million for the six months ended June 30, 2023, compared to the same period in 2022. The overall increase in expenses was primarily due to costs associated with clinical programs and outside service costs related to the development of our lead drug candidate, onvansertib. Salaries and staff costs increased primarily from additional hires in senior management and our clinical operations team (research and development average headcount grew by 30% over the comparative period). The increase in facilities and other is primarily due to increased allocation of facilities cost resulting from headcount growth compared to the prior period.

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Selling, General and Administrative Expenses

Selling, general and administrative expenses consisted of the following:

	Six Months Ended June 30,
(in thousands)	2023		2022		Increase (Decrease)
Salaries and staff costs	$	2,157	$	1,652	$	505
Stock-based compensation	1,954		1,747		207
Outside services and professional fees	2,091		2,279		(188)
Facilities and other	1,177		1,348		(171)
Total selling, general and administrative	$	7,379	$	7,026	$	353

Selling, general and administrative expenses increased by $0.4 million for the six months ended June 30, 2023, compared to the same period in 2022. Salaries and staff costs increased due to an employee severance agreement.

Interest Income, Net

Interest income, net was $2.0 million for the six months ended June 30, 2023 as compared to $0.4 million for the same period of 2022. The increase in interest income was primarily due to higher interest rates on our short-term investments portfolio for the six months ended June 30, 2023 as compared to the same period of 2022.

LIQUIDITY AND CAPITAL RESOURCES

Net cash used in operating activities for the six months ended June 30, 2023, was $15.8 million, compared to $16.9 million for the six months ended June 30, 2022. Our use of cash was primarily a result of the net loss of $22.4 million for the six months ended June 30, 2023, adjusted for non-cash items related to stock-based compensation of $2.6 million. The net change in our operating assets and liabilities decreased cash used in operations by $4.2 million. At our current and anticipated level of operating loss, we expect to continue to incur an operating cash outflow for the next several years.

Net cash provided by investing activities was $18.8 million primarily related to sales and maturities in excess of purchases of marketable securities for the six months ended June 30, 2023, compared to net cash provided by investing activities of $26.0 million primarily related to sales and maturities in excess of purchases of marketable securities during the same period in 2022.

Net cash provided in financing activities was $0 for the six months ended June 30, 2023, and 2022.

As of June 30, 2023, and December 31, 2022, we had working capital of $83.6 million and $103.5 million, respectively.

We have incurred net losses since our inception and have negative operating cash flows. As of June 30, 2023, we had $89.4 million in cash, cash equivalents and short-term investments and we believe we have sufficient cash to meet our funding requirements for at least the next 12 months following the issuance date of this Quarterly Report on Form 10-Q. Based on our current projections we expect that our capital resources are sufficient to fund our operations into 2025.

Our drug development efforts are in their early stages, and we cannot make estimates of the costs or the time that our development efforts will take to complete, or the timing and amount of revenues related to the sale of our drug candidates. The risk of completion of any program is high because of the many uncertainties involved in developing new drug candidates to market, including the long duration of clinical testing, the specific performance of proposed products under stringent clinical trial protocols, extended regulatory approval and review cycles, our ability to raise additional capital, the nature and timing of research and development expenses, and competing technologies being developed by organizations with significantly greater resources.

For the foreseeable future, we expect to continue to incur losses and require additional capital to further advance our clinical trial programs and support our other operations. We cannot be certain that additional funding will be available on acceptable terms, or at all. To the extent that we can raise additional funds by issuing equity securities, our stockholders may experience additional dilution.

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ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Not applicable.

ITEM 4. CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

We have performed an evaluation under the supervision and with the participation of our management, including our principal executive officer (CEO) and principal financial officer (CFO), of the effectiveness of our disclosure controls and procedures, as defined in Rule 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”). Based on that evaluation, our principal executive officer and principal financial officer concluded that our disclosure controls and procedures were effective as of June 30, 2023, to provide reasonable assurance that information required to be disclosed by us in the reports filed or submitted by us under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms.

Our disclosure controls and procedures are designed to provide reasonable assurance of achieving their objectives as specified above. Management does not expect, however, that our disclosure controls and procedures will prevent or detect all errors and fraud. Any control system, no matter how well designed and operated, is based upon certain assumptions and can provide only reasonable, not absolute, assurance that its objectives will be met. Further, no evaluation of controls can provide absolute assurance that misstatements due to error or fraud will not occur or that all control issues and instances of fraud, if any, within our company have been detected.

Changes in Internal Control over Financial Reporting

There was no change in our internal control over financial reporting during the three months ended June 30, 2023, that materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

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PART II.  OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

None.

ITEM 1A. RISK FACTORS

There have been no material changes from the risk factors disclosed in our Form 10-K for the year ended December 31, 2022.

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

None.

ITEM 3. DEFAULTS UPON SENIOR SECURITIES

None.

ITEM 4. MINE SAFETY DISCLOSURES

Not applicable.

ITEM 5. OTHER INFORMATION

None.

ITEM 6. EXHIBITS

Exhibit Number	Description of Exhibit
10.1#	Development Agreement between Cardiff Oncology, Inc. and Pfizer, Inc. dated June 30, 2023.
31.1	Certification of Principal Executive Officer required by Rule 13a-14(a)/15d-14(a) under the Exchange Act.
31.2	Certification of Principal Financial Officer required by Rule 13a-14(a)/15d-14(a) under the Exchange Act.
32.1	Certification of Principal Executive Officer pursuant to 18 U.S.C Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2	Certification of Principal Financial Officer pursuant to 18 U.S.C Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101.INS	Inline XBRL Instance Document
101.SCH	Inline XBRL Taxonomy Extension Schema
101.CAL	Inline XBRL Taxonomy Extension Calculation Linkbase
101.LAB	Inline XBRL Taxonomy Extension Labels Linkbase
101.PRE	Inline XBRL Taxonomy Extension Presentation Linkbase
101.DEF	Inline XBRL Taxonomy Extension Definition Linkbase
104	Cover Page Interactive Data File - the cover page from the Registrant’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2023, is formatted in Inline XBRL

#    Portions of this exhibit (indicated by asterisks) have been redacted in compliance with Regulation S-K Item 601(b)(10)(iv).

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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.

	CARDIFF ONCOLOGY, INC.
August 9, 2023	By:	/s/ Mark Erlander
		Mark Erlander
		Chief Executive Officer
	CARDIFF ONCOLOGY, INC.
August 9, 2023	By:	/s/ James Levine
		James Levine
		Chief Financial Officer

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