Cardiff Oncology, Inc. (CRDF)

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, 2025, filed on February 24, 2026. 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 advancing innovative cancer treatments focused on PLK1 inhibition, a validated oncology drug target with practice-changing potential. Our lead asset, onvansertib, is a highly specific, oral PLK1 inhibitor currently being evaluated in a Phase 2 trial for first-line treatment of RAS-mutated metastatic colorectal cancer ("mCRC"), addressing a large, underserved patient population with high unmet need. Onvansertib is also under investigation in other PLK1-driven cancers through investigator-initiated trials such as metastatic pancreatic ductal adenocarcinoma ("mPDAC"), small cell lung cancer ("SCLC"), and metastatic triple negative breast cancer ("mTNBC"). Additionally, onvansertib has also shown promising single agent activity in an ongoing investigator-initiated trial in chronic myelomonocytic leukemia ("CMML"). These programs and our broader development strategy are designed to target tumor vulnerabilities and deliver improved clinical outcomes in patients with cancer. Our clinical development programs incorporate tumor genomics and biomarker assays to refine patient selection and assessment of patient response to treatment.

Our Lead Drug Candidate, Onvansertib

We believe the attributes of onvansertib and its early clinical evidence of favorable safety and efficacy, with expected on-target, manageable and tolerable side effects, may prove beneficial in addressing clinical therapeutic needs across a variety of cancers. Key attributes of onvansertib include:

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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 (IC50500 nM), including the PLK members PLK2 and PLK3 (IC5010,000 nM);

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Orally bioavailable, allowing for relative ease and flexibility of dosing;

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Relatively short drug half-life of 24 hours, allowing for flexible dosing and scheduling that has demonstrated a favorable safety profile across multiple clinical trials.

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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 additive or synergistic effects on efficacy have been observed in xenograft models of onvansertib in combination with irinotecan, 5-fluorouracil ("5-FU"), abiraterone, PARP inhibitors, venetoclax, paclitaxel, and bevacizumab ("bev"). Combining onvansertib with standard of care ("SoC") cancer agents may provide opportunities for synergy with many cancer therapies.

There are ongoing clinical trials of onvansertib in select cancer indications: one trial (CRDF-004) in first-line treatment in patients with RAS-mutated mCRC, and investigator-initiated trials in first-line mPDAC, relapsed / refractory or advanced CMML as monotherapy, second-line relapsed SCLC as monotherapy, and second-line unresectable locally advanced or metastatic TNBC.

RAS-mutated mCRC Program:

CRDF-004 Randomized Clinical Trial in First-Line RAS-mutated mCRC

CRDF-004 is a Phase 2, randomized, open label multi-center clinical trial to assess the efficacy of two different doses of onvansertib (20 mg and 30 mg) in combination with FOLFIRI/bev or FOLFOX/bev, compared with FOLFIRI/bev or FOLFOX/bev SoC alone, for the treatment of mCRC in patients with a KRAS or NRAS mutation in the first-line setting. Trial endpoints include objective response rate ("ORR"), progression-free survival ("PFS") and duration of response ("DoR") together with pharmacokinetics, pharmacodynamics and safety assessments. The primary goal of the clinical trial is to select the safe and efficacious dose of onvansertib plus appropriate standard of care regimen for the Phase 3 trial based on a benefit-risk assessment of the totality of the evidence, including numerical differences between the onvansertib and SoC arms. The trial has enrolled 110 patients in the intent-to-treat ("ITT") population and is being conducted in partnership with Pfizer Ignite, an end-to-end service for biotech companies. For more information, please visit NCT06106308 at www.clinicialtrials.gov.

Data highlights from the ongoing Phase 2 trial were presented at the ASCO Meeting on June 2, 2026, using a data cut of March 18, 2026. Overall, results showed that the onvansertib 30 mg + FOLFIRI/bev dose regimen, demonstrated deep and durable tumor shrinkage, including clinically meaningful improvements in ORR and PFS compared to SoC alone, with no additive adverse events. In the ITT population, the dose selected for the registrational program, 30 mg onvansertib arm in combination with FOLFIRI/ bev achieved:

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Primary endpoint of confirmed objective response rate of 72.2% (13/18), compared with 42.1% (8/19) for FOLFIRI/bev alone, a 30% improvement over SoC. The responses were deeper and more durable in the onvansertib arm.

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Secondary endpoint of PFS hazard ratio ("HR") of 0.55 (95% CI: 0.15–2.09) and 0.57 (95% CI: 0.20–1.65) vs. FOLFIRI/bev by Blinded Independent Central Review ("BICR") and investigator assessment ("IA"), respectively.

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Median PFS not reached in 30 mg onvansertib + FOLFIRI/bev arm, but has been reached in both SoC arms. Four patients remain on onvansertib treatment beyond 15 months, including 2 beyond 20 months.

No meaningful differences in efficacy were observed between the onvansertib + FOLFOX/bev arms and FOLFOX/bev alone.

Safety/Tolerability

Onvansertib in combination with both chemotherapy (FOLFIRI or FOLFOX)/bev regimens was well-tolerated. There were no major or unexpected toxicities observed, and no additive adverse events reported. Grade 3 or higher adverse events were infrequent, with neutropenia being the most common treatment-emergent adverse event across both the onvansertib combination and SoC arms.

The Phase 2 trial is still ongoing and as of a June 23, 2026 data cut-off, 12 patients remain on trial, with 8 patients in the onvansertib (20 or 30 mg) plus FOLFIRI/bev arms and one patient remaining on SoC.

In April 2026 we completed our End-of-Phase 2 Type B meeting with the U.S. Food and Drug Administration ("FDA"). Incorporating FDA feedback, we have designed the registrational Phase 3 trial (CRDF-005) as a global randomized, controlled trial that will evaluate the safety and efficacy of onvansertib 30 mg + FOLFIRI/bev as first-line therapy versus SoC FOLFIRI/bev in patients with RAS mutated mCRC. We expect to enroll approximately 640 patients across sites in the US, Europe and other regions. Additional details of the trial will be disclosed at the time of initiation of the trial.

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Additionally, we have initiated the process of soliciting scientific advice from the European Medicines Agency ("EMA") on our Phase 3 plans. We remain on track with the manufacturing of clinical material and also with companion diagnostic related regulatory activities as we prepare for the registrational trial.

Other Clinical Programs:

We support certain investigator-initiated trials by supplying onvansertib to academic clinicians who conduct clinical trials independently. These studies allow us to tap into the expertise of independent clinicians and academic investigators to explore new therapeutic indications or new dosage regimens at a low cost to us. By facilitating independent research, we have the opportunity to gain valuable evidence and safety data that can inform future regulatory decisions or improve our understanding of onvansertib’s efficacy. Furthermore, supporting investigator-initiated trials act as a collaborative effort that strengthens relationships with KOLs.

Phase 1b/2 Investigator-Initiated Clinical Trial in First-Line mPDAC

In February 2024, the FDA approved NALIRIFOX as a first-line treatment option for mPDAC. As a result, we are currently supporting an investigator-initiated mPDAC Phase 1b/2 trial of onvansertib in combination with first-line SoC NALIRIFOX, at the University of Kansas Medical Center. The trail has completed enrollment, and data will be disclosed by the investigator after completion of the trial. For more information, please visit NCT06736717 at www.clinicaltrials.gov.

The primary objective in this study is to determine anti-tumor activity by measuring ORR. The secondary objectives are to determine treatment safety based on toxicities in participants who have received at least one dose of onvansertib, to determine anti-tumor activity by PFS, Disease Control Rate ("DCR"), as well as Overall Survival ("OS").

Phase 2 Investigator-Initiated Clinical Trial in SCLC

A single-arm, two-stage, Phase 2 trial of onvansertib monotherapy in patients with relapsed SCLC at the University of Maryland, Baltimore completed enrollment of 15 patients in Stage 1, with the study proceeding

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ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Company 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"), as well as in investigator-initiated trials in metastatic pancreatic ductal adenocarcinoma ("mPDAC"), small cell lung cancer ("SCLC"), metastatic triple negative breast cancer ("mTNBC") and Chronic Myelomonocytic Leukemia ("CMML"). Our clinical development programs incorporate tumor genomics and biomarker assays to refine patient selection and assessment of patient response to treatment. Our common stock is listed on the Nasdaq Capital Market under the ticker symbol "CRDF".

Our accumulated deficit through December 31, 2025 is $430.0 million. To date, we have generated minimal revenues, unrelated to onvansertib, and expect to incur additional losses to perform further research and development activities.

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. 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.

Recent Developments

Appointment of Interim Chief Executive Officer and Chief Accounting Officer

On January 27, 2026, we announced that Mani Mohindru, PhD, a member of Cardiff Oncology’s Board of Directors since 2021 and a seasoned biotech executive, has been appointed interim Chief Executive Officer, effective immediately. Mark Erlander, PhD, Chief Executive Officer, and James Levine, Chief Financial Officer, have stepped down from their respective roles.

As part of this transition, Brigitte Lindsay was promoted to the role of Chief Accounting Officer, ensuring continuity within the finance function.

Critical Accounting Policies and Estimates

Our accounting policies are described in Part II, Item 8. Financial Statements—Note 2 Basis of Presentation and Summary of Significant Accounting Policies in this Annual Report on Form 10-K. The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of expenses during the reporting period. Actual results could differ from those estimates. We believe that the following discussion represents our critical accounting policies and estimates.

Accrued Clinical Trial Expenses

We accrue and expense research and development expenditures as incurred, which include costs related to clinical trial activities. We accrue costs for clinical trial activities based upon estimates of the services received and related expenses incurred that have yet to be invoiced by the Clinical Research Organizations ("CROs"), professional service providers, and other vendors providing clinical trial services (collectively, the “service providers”). We consider several elements including the key terms of the clinical trial agreements, budgets, contract amendments, and the progress of clinical trials toward completion (which includes consideration of patient

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enrollment) in estimating the clinical trial accrual. We accrue costs based on estimated work completed in accordance with agreements established with our service providers. We determine the estimated costs through discussions with internal personnel and external service providers as to the progress or stage of completion of the services and the agreed-upon fee to be paid for such services. We make estimates of our accrued expenses as of each balance sheet date in our financial statements based on facts and circumstances known to us at that time. Due to the nature of estimates, we cannot assure you that we will not make changes to our estimates in the future as we become aware of additional information about the status or conduct of our clinical trial activities.

Results of Operations

Years Ended December 31, 2025 and 2024

Revenues

Total revenues were $0.6 million for the year ended December 31, 2025, as compared to $0.7 million for the same period in 2024. 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:

Research and development expenses decreased by $1.5 million for the year ended December 31, 2025, compared to the same period in 2024. The overall decrease in expenses was primarily due to a reduction in clinical trial expenses and a decrease in preclinical activities. The increase in stock based compensation was due to new stock option grants during the current period.

Selling, General and Administrative Expenses

Selling, general and administrative expenses consisted of the following:

Selling, general and administrative expenses increased by $1.7 million for the year ended December 31, 2025, compared to the same period in 2024. The overall increase in expenses was primarily within professional fees and was primarily from strategic advisory services utilized during the current period and an increase in patent fees. Salaries and staff costs increased due to employee severance agreements which were expensed during the current period.

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Interest Income

Interest income was $3.1 million for the year ended December 31, 2025 as compared to $3.3 million for the same period of 2024. Our interest income is primarily from our short-term investment portfolios and money market accounts. The amount of interest income earned varies each period based on the balance of our accounts and interest rates.

Liquidity and Capital Resources

As of December 31, 2025, and December 31, 2024, we had working capital of $43.7 million and $81.6 million, respectively.

We have incurred net losses since our inception and have negative operating cash flows. As of December 31, 2025, we had $58.3 million in cash, cash equivalents and short-term investments. Based on our current projections, we expect that our capital resources are sufficient to fund our operations into the first quarter of 2027, which is not sufficient to meet our funding requirements for at least the next 12 months following the issuance of our financial statements. Management has performed an analysis and concluded that there exists a substantial doubt about the Company's ability to continue as a going concern, see Note 1 Business Overview and Liquidity to the financial statements for additional details.

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.

Cash Flow Summary

Operating Activities

Net cash used in operating activities for the year ended December 31, 2025, was $37.9 million. Our primary use of cash was from our net loss of $45.9 million, adjusted for non-cash items of $5.7 million primarily related to stock-based compensation. The net change in our operating assets and liabilities decreased cash used in operations by $2.2 million.

Net cash used in operating activities for the year ended December 31, 2024, was $37.7 million. Our primary use of cash was from our net loss of $45.4 million, adjusted for non-cash items of $5.1 million primarily related to stock-based compensation. The net change in our operating assets and liabilities decreased cash used in operations by $2.6 million.

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Investing Activities

Net cash provided by investing activities for the year ended December 31, 2025, was $1.3 million, primarily related to maturities and sales in excess of purchases of marketable securities.

Net cash provided by investing activities for the year ended December 31, 2024, was $13.7 million, primarily related to maturities and sales in excess of purchases of marketable securities.

Financing Activities

Net cash provided by financing activities for the year ended December 31, 2025, was $2.6 million, from the exercise of warrants and employee stock options exercises.

Net cash provided by financing activities for the year ended December 31, 2024, was $53.8 million from the net proceeds from the sale of common stock.