Cardiff Oncology, Inc. · NASDAQ:CRDF

Cardiff Oncology — Technical Presentation (June 2026)

27 slides from Cardiff Oncology's technical presentation, Jun 3, 2026

  1. Slide 1: Interim Results from the Randomized, Controlled Phase 2 CRDF-004 Trial

    June 3, 2026 Interim Results from the Randomized, Controlled Phase 2 CRDF-004 Trial Onvansertib + SoC Chemo/Bevacizumab in First-Line RAS-Mutated mCRC

  2. Slide 2: Forward-Looking Statements

    Forward-Looking Statements Certain statements in this presentation are forward-looking within the meaning of the Private Securities Litigation Reform Act of 1995. These statements may be identified by the use of words such as "anticipate," "believe," "forecast," "estimated" and "intend" or other sim

  3. Slide 3: Agenda

    Program Overview Mani Mohindru, PhD, President and CEO CRDF-004 Clinical Update & Path Forward Mani Mohindru, PhD, President and CEO KOL Perspectives Heinz-Josef Lenz, MD, University Professor of Medicine, Population and Public Health Sciences and Cancer Biology; Professor of Medicine and Preventive

  4. Slide 4: Program Overview

    Program Overview CRDF-004 Clinical Update Path Forward FIRST-LINE RAS-MUTATED mCRC ONVANSERTIB

  5. Slide 5: Highly selective PLK1 inhibitor with practice-changing potential in first-line RAS-mutated mCRC

    Highly selective PLK1 inhibitor with practice-changing potential in first-line RAS-mutated metastatic colorectal cancer *ORR reflects BICR. PFS reflects Investigator Assessment* ORR: Objective Response Rate; PFS: Progression Free Survival; BICR: Blinded Independent Central Review First-line RAS-muta

  6. Slide 6: Positioned to address the first-line RAS-mutated mCRC market

    RAS Wild Type G12C ~4% RAS-mutated ~50% ~50% Positioned to address the first-line RAS-mutated mCRC market​ Blockbuster potential: Onvansertib targets All RAS-mut mCRC ~150,000 newly diagnosed CRC patients in U.S.; 20% present metastatic disease* 1st Line Standard-of-Care Remains Unchanged for Two De

  7. Slide 7: Large unmet need in first-line mCRC: efficacy data from existing therapies

    Large unmet need in first-line mCRC: efficacy data from existing therapies Targeted agent Trial Mechanism of action Trial population Sample size ORR Exp. vs Ctrl. PFS (months) Exp. vs Ctrl. Hazard ratio bevacizumab IFL/bev vs IFL Antiangiogenic KRAS WT or mutant All ITT patients Mutant only1 813 78

  8. Slide 8: CRDF-004 Clinical Update (Data cut-off Mar 18, 2026)

    Program Overview CRDF-004 Clinical Update (Data cut-off Mar 18, 2026) Path Forward FIRST-LINE RAS-MUTATED mCRC ONVANSERTIB

  9. Slide 9: CRDF-004: dose-finding, randomized, controlled Phase 2 trial design

    mCRC: metastatic colorectal cancer; ORR: objective response rate; DoR: duration of response; PFS: progression free survival; SoC: standard of care; onv: onvansertib; bev: bevacizumab CRDF-004: dose-finding, randomized, controlled Phase 2 trial in first-line patients with RAS-mutated mCRC First-line

  10. Slide 10: Demographics and baseline characteristics

    Demographics and baseline characteristics FOLFIRI/bev (N=19) Onv 20 mg + FOLFIR/bev (N=18) Onv 30 mg + FOLFIRI/bev (N=18) FOLFOX/bev (N=18) Onv 20 mg + FOLFOX/bev (N=18) Onv 30 mg + FOLFOX/bev (N=19) Age (years) Mean (SD) 55.41 (14.34) 52.41 (13.13) 59.67 (12) 56.24 (12.04) 59.41 (14.5) 60.11 (14.1)

  11. Slide 11: Patient populations and trial status

    Population, n FOLFIRI/bev Onv 20mg + FOLFIRI/bev Onv 30mg + FOLFIRI/bev FOLFOX/bev Onv 20mg + FOLFOX/bev Onv 30mg + FOLFOX/bev Total Intent-to-treat (ITT) 19 18 18 18 18 19 110 Safety population (dosed) 17 17 18 17 17 18 104 Patients still on study treatment 1 5 4 0 3 1 14 Trial is ongoing as of Mar

  12. Slide 12: Onv 30 mg + FOLFIRI/bev delivers superior ORR and depth of response

    Onv 30 mg + FOLFIRI/bev delivers superior ORR & depth of response: 30% improvement in ORR over FOLFIRI/bev Onv 20 mg/Onv 30 mg + FOLFIRI/bev (n=36) Combined ORR: 58.3% (21) Objective Response Rate (per BICR) - ITT Analysis ** CR at last assessment; unconfirmed due to discontinuation for curative sur

  13. Slide 13: Onv 30 mg + FOLFIRI/bev demonstrates longer duration of treatment

    Onv 30 mg + FOLFIRI/bev demonstrates longer duration of treatment 9 of 10 remaining patients on onv + FOLFIRI/bev Onv 30 mg + FOLFIRI/bev Onv 20 mg + FOLFIRI/bev Control Arm (FOLFIRI/bev) Patients that are not evaluable are not shown in the plots (n=19) (n=18) (n=18) Reason For Discontinuation Adver

  14. Slide 14: Deep and durable tumor shrinkage over time

    % Change in target lesions from baseline Patients that are not-evaluable or do not have target lesions are not shown in the plots. Onv 30 mg + FOLFIRI/bev demonstrates deep and durable tumor shrinkage over time Control Arm (FOLFIRI/bev) Onv 20 mg + FOLFIRI/bev Onv 30 mg + FOLFIRI/bev (n=19) (n=18) (

  15. Slide 15: Onv + FOLFIRI/bev shows improved PFS vs SoC

    No. at risk No. at risk Onv (20 & 30 mg) + FOLFIRI/bev shows improved PFS vs SoC (FOLFIRI/bev & FOLFOX/bev) BICR Assessment Investigator Assessment Onv (30mg & 20mg) + FOLFIRI/bev Combined SoC (FOLFIRI/bev & FOLFOX/bev) FOLFIRI/bev + FOLFOX/bev Onv (20 & 30mg) + FOLFIRI/bev N 37 36 Median PFS 11.07

  16. Slide 16: Onv 30 mg + FOLFIRI/bev shows improved PFS vs FOLFIRI/bev

    Onv 30 mg + FOLFIRI/bev shows improved PFS vs FOLFIRI/bev BICR Assessment Investigator Assessment FOLFIRI/bev Onv 30 mg + FOLFIR/bev N 19 18 Median PFS 18.89* NR** HR (95% CI) 0.55 (0.15, 2.09) FOLFIRI/bev Onv 30 mg + FOLFIR/bev N 19 18 Median PFS 12.22* NR** HR (95% CI) 0.57 (0.2, 1.65) *Discordanc

  17. Slide 17: Forest plot of ORR by baseline characteristics

    STAGE I at initial diagnosis excluded due to too few patients to meaningfully analyze. Forest plot of ORR (BICR) by baseline characteristics demonstrates consistent benefit across subgroups with Onv 30 mg + FOLFIRI/bev Onv 30 mg + FOLFIRI/bev vs FOLFIRI/bev N Difference in ORR (95% CI) Level Favors

  18. Slide 18: Forest plot of PFS by baseline characteristics

    Forest plot of PFS* by baseline characteristics demonstrates trends in benefit across subgroups with Onv 30 mg + FOLFIRI/bev * Progressive disease events were based on events of BICR and Investigator assessments. The earliest reported date was used for a conservative estimate STAGE I at initial diag

  19. Slide 19: Onvansertib shows no unexpected, overlapping, or new toxicities

    Onvansertib shows no unexpected, overlapping, or new toxicities when added to FOLFIRI/bev or FOLFOX/bev *Data cut-off March 18, 2026, from an ongoing trial and unlocked EDC database. events shown occurred in ≥20% of total patients; Subjects reporting more than one adverse event (AE) within a preferr

  20. Slide 20: Onvansertib adds no consistent meaningful benefit to FOLFOX/bev

    Patients that are not evaluable are not shown in the plots Onvansertib adds no consistent meaningful benefit to FOLFOX/bev Best confirmed Response PR Stable Disease Progressive Disease CR Confirmed ORR (n) FOLFOX/bev (n=18) 44.4% (8) Onv 20 mg + FOLFOX/bev (n=18) 55.6% (10) Onv 30 mg + FOLFOX/bev (n

  21. Slide 21: Mechanistic rationale for onvansertib's synergy with FOLFIRI but not FOLFOX

    Mechanistic rationale for onvansertib's synergy with FOLFIRI but not FOLFOX HCT116 is a human colorectal cell line; Irinotecan, a component of FOLFIRI, is a prodrug of SN38 Topoisomerase I inhibitors (Irinotecan/SN38) + Onvansertib Both suppress HIF1α → dual anti-angiogenic effect Irinotecan-induced

  22. Slide 22: CRDF-004 Phase 2 trial: key goals/endpoints achieved

    CRDF-004 Phase 2 trial: key goals/endpoints achieved Primary Endpoint: ORR Secondary Endpoint: PFS Primary Goal: DOSE + CHEMO SELECTION 30 mg onvansertib + FOLFIRI/bev Selected the efficacious and safe dose of onvansertib + SoC for the registrational program 30% improvement in ORR 30 mg onvansertib

  23. Slide 23: Path Forward

    Program Overview CRDF-004 Clinical Update Path Forward FIRST-LINE RAS-MUTATED mCRC ONVANSERTIB

  24. Slide 24: Proposed pivotal trial design in first-line RAS-mutated mCRC

    Proposed pivotal trial design in first-line RAS-mutated mCRC FDA End-of-Phase 2 meeting completed in 2Q 2026 ENROLLMENT CRITERIA ENDPOINTS Dual Primary Endpoints: Secondary: ORR and PFS DoR and OS Design details: Proposed sample size ~ 640 patients >90% power to detect PFS and ORR difference in the

  25. Slide 25: Key takeaways for onvansertib

    Key takeaways for onvansertib mCRC, metastatic colorectal cancer; bev, bevacizumab; ORR, objective response rate; PFS, progression-free survival; PLK1, polo-like kinase 1; SoC, standard of care Onvansertib: highly selective, oral, small molecule inhibitor of PLK1 Large Unmet Need Proven Synergy with

  26. Slide 26: KOL perspectives: mCRC market and therapeutic landscape

    KOL perspectives: mCRC market and therapeutic landscape Josep Tabanero, M.D., PhD., is Head of the Medical Oncology Department at Vall d’Hebron University Hospital, Professor of Medicine at the Universitat de Vic and Director of the Vall d’Hebron Institute of Oncology. Heinz Josef-Lenz, M.D., is a U

  27. Slide 27: Q&A

    Heinz-Josef Lenz, MD Mani Mohindru, PhD President & CEO Joshua Muntner CFO Josep Tabernero, MD, PhD Q&A GI ONCOLOGY KOLS: CARDIFF LEADERSHIP:

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