Cardiff Oncology, Inc. · NASDAQ:CRDF

Cardiff Oncology — Investor Presentation (January 2024)

64 slides from Cardiff Oncology's investor presentation, January 2024

  1. Slide 1: Company Overview: The Onvansertib Opportunity

    Company Overview The Onvansertib Opportunity J A N UA RY 2 0 2 4

  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: Onvansertib: first-in-class PLK1 inhibitor with robust mCRC data

    First-in-Class Robust clinical data in FDA Pfizer PLK1 inhibitor 2L KRAS-mut mCRC • Onvansertib • 73% • FDA • Pfizer ~25% • 15 month • Pfizer • ~8 month We expect clinical data from our 1st line RAS-mutated mCRC trial in mid-2024 Runway with current cash extends into 2025

  4. Slide 4: Onvansertib and bevacizumab reduce tumor size in mouse mCRC models

    Human metastatic colorectal cancer (mCRC) tumors grown in mice (KRAS G12V) The combination of onvansertib and bevacizumab shows dramatically reduced • tumor size and • • vascularization

  5. Slide 5: Annual eligible U.S. patients by target

    Annual eligible U.S. patients (’000s)* Targets with Targets without oncogenic oncogenic alterations alterations Announced acquisition 48 50 for $4.8 billion by BMS 29 3 5 5 * ROS1 estimated eligible patients presented in KRAS G12C estimated eligible patients includes Turning Point Therapeutics’ corp

  6. Slide 6: Line of therapy and trial program

    Line of Therapy Trial IIT* Ph2 Ph3 Combination with:

  7. Slide 7: Fighting mCRC through PLK1 inhibition

    Fighting mCRC through PLK1 inhibition Robust data in lead mCRC program Path forward to accelerated approval

  8. Slide 8: Onvansertib

    Onvansertib PROPERTIES SPECIFICITY • • •

  9. Slide 9: 350 140

    350 140 300 120 250 100 200 80 150 60 100 40 50 20 0 0

  10. Slide 10: mCRC standard of care leaves a significant unmet need

    mCRC standard of care leaves a significant unmet need Standard of Care for 1st / 2"4 line RAS-mutated mCRC includes chemo + bevacizumab FOLFOX (approved 1996) Chemotherapy FOLFIRI (approved 2002) oo . Bevacizumab Antiangiogenic (Avastin”) (approved 2004) Targeted therapy None

  11. Slide 11: Other mCRC development programs leave a significant unmet need

    Other mCRC development programs leave a significant unmet need KRAS G12C therapies would address a small part of the need" 4% G12C G12D G12V Normal (WT) G13D G12S G12A Q61H NRAS G13C Onvansertib js targeting all RAS-mutated mCRC' G12C G12D 52% RAS-mutated G12V | G13D G12S G12A Q61H NRAS G13C

  12. Slide 12: Multiple onvansertib MOAs underlie focus on RAS-mutated mCRC

    Multiple onvansertib MOAs underlie our focus on RAS-mutated mCRC Onvansertib attacks RAS-mutated mCRC in three ways Synthetic RAS-mut mCRC tumor cells are lethality hypersensitive to onvansertib Inhibit Onvansertib inhibits repair of DNA repair chemo-induced DNA damage Inhibit tumor Onvansertib inhi

  13. Slide 13: Annual eligible U.S. patients by target

    Annual eligible U.S. patients (’000s)* Targets with Targets without oncogenic oncogenic alterations alterations 50 48 50 15 12 3 5 * ROS1 estimated eligible patients presented in mCRC estimated population includes 1st line, Turning Point Therapeutics’ corporate KRAS- and NRAS-mutated cancers. mPDAC

  14. Slide 14: Fighting mCRC through PLK1 inhibition

    Fighting mCRC through PLK1 inhibition Robust data in lead mCRC program Path forward to accelerated approval

  15. Slide 15: 1st line and 2nd line mCRC trials

    Normal 1st LINE 2nd LINE RAS Mutated

  16. Slide 16: 1st line and 2nd line mCRC trials

    Normal 1st LINE 2nd LINE RAS Mutated

  17. Slide 17: Trial design: enrollment criteria and endpoints

    ENROLLMENT CRITERIA EFFICACY ENDPOINTS 1 2 28 DAY CYCLE 3

  18. Slide 18: Bev exposed vs bev naive patients

    Bev exposed vs bev naïve patients 1st LINE 2nd LINE

  19. Slide 19: Bev naive patients achieved higher response rate with onvansertib+SoC

    Bev naive patients achieved higher response rate with onvansertib+SoC Best Radiographic Response and Duration of Response* - 66 evaluable patients (as of June 16, 2023) All Bev patients naive N 66 15 ORR 29% (19) 73% (11) 95% Cl (18-41%) (45-92%) mDoR = 12.0mo_ 13.0mo 95% Cl (8.9,-) | (12.0, -) Dise

  20. Slide 20: Response by KRAS variant

    KRAS G12C Variant CR+PR SD PD Total G12D G12V G13D G12S G12A Q61H G13C

  21. Slide 21: PFS exceeds historical controls for SoC

    PFS exceeds historical controls for SoC, particularly in bev naive patients Progression free survival* — 66 evaluable patients (as of June 16, 2023) 3 1.00 3 1.004 g 5 a a ° 8 Bojs. Bors, . iad I O76 — Bev naive 8 — All patients 4 £ P & — Bev exposed 050) - 22-22 eee- eee 77 ee ieee 0.25: 0.25- 5.0

  22. Slide 22: Scientific basis for clinical findings

    Scientific basis for clinical findings

  23. Slide 23: Combination had superior anti-tumor activity compared to single agents

    The combination had significant superior anti-tumor activity compared to the single agents SW620 (KRAS G12V) 2500 2000 Tumor volume (mm3) 1500 1000 500 0 0 10 20 30

  24. Slide 24: Onv + bev tumors appear smaller and pale

    • • • KRAS-mut mCRC tumors from mice treated with onv + bev appear smaller and pale (less vascularized)

  25. Slide 25: New MOA inhibits a survival switch of tumorigenesis

    This new MOA, which inhibits a “survival switch” of tumorigenesis, may underlie the increased efficacy observed clinically

  26. Slide 26: Fighting mCRC through PLK1 inhibition

    Fighting mCRC through PLK1 inhibition Robust data in lead mCRC program Path forward to accelerated approval

  27. Slide 27: mCRC clinical development program agreed with FDA at June 2023 Type C meeting

    mCRC clinical development program agreed with FDA at June 2023 Type C meeting • • • • • • •

  28. Slide 28: Planned trial design: enrollment, endpoints, benchmark of success

    ENROLLMENT CRITERIA ENDPOINTS Primary Secondary Benchmark of success PFIZER IGNITE

  29. Slide 29: Historical controls include RAS-mut and RAS wild-type cancers

    2nd Line mCRC 1st line mCRC 2nd Line mCRC 1st line mCRC Given the design of prior trials, historical controls include RAS-mut and RAS wild-type cancers

  30. Slide 30: Pfizer Breakthrough Growth Initiative and Ignite

    PFIZER BREAKTHROUGH GROWTH INITIATIVE PFIZER Ignite • • • • •

  31. Slide 31: Onvansertib: first-in-class PLK1 inhibitor with robust mCRC data

    First-in-Class Robust clinical data in FDA Pfizer PLK1 inhibitor 2L KRAS-mut mCRC • Onvansertib • 73% • FDA • Pfizer ~25% • 15 month • Pfizer • ~8 month We expect clinical data from our 1st line RAS-mutated mCRC trial in mid-2024

  32. Slide 32: Appendix: Additional mCRC Data

    Appendix Additional mCRC Data

  33. Slide 33: Trial patient demographics reflect 2nd line mCRC population

    The trial’s patient demographics reflects 2"4 line mCRC population Enrollment* Number of Patients (N) Phase 1b, Dose Level 0 Phase 1b, Dose Level +1 Phase 1b, Dose Level +2 Phase 2 RP2D Total Patients Onvansertib 12 mg/m? Onvansertib 15 mg/m? Onvansertib 18 mg/m? Onvansertib 15 mg/m? All Doses Treat

  34. Slide 34: Bev naive patients experienced more durable responses

    Bev naive patients experienced more durable responses Swimmer plot* - 66 evaluable patients (as of June 16, 2023) All Bev Bev patients naive exposed Pursued surgery / ablation 18% 12/60) 53% (g/15) 8% 4/51) Initial PR at 8 week scan 9 8 1 Initial PR at 16+ week scan 10 3 7 o e@ eee ee eo ew ew 8 le

  35. Slide 35: No single patient characteristic explains difference in response

    No single patient characteristic explains the difference in response rates by prior bev status

  36. Slide 36: Treatment-emergent adverse events

    • TEAE GR1 GR2 GR3 GR4 TOTAL TEAE GR1 GR2 GR3 GR4 TOTAL Fatigue 24 22 7 0 53 78% Cough 11 0 0 0 11 16% • Neutropenia 1 18 23 7 49 72% Pyrexia 8 1 1 0 10 15% Nausea 29 13 4 0 46 68% Dyspnea 7 3 0 0 10 15% • Diarrhea 21 13 4 0 38 56% AST Increase 7 2 1 0 10 15% Leukopenia 9 14 5 1 29 43% Lymphocytopen

  37. Slide 37: Hypoxia: a hallmark of cancer

    Hypoxia: a hallmark of cancer In response to hypoxia, cancer cells activate the hypoxia- inducible factor (HIF) pathway, which can promote tumorigenesis through multiple means: ° Angiogenesis Cell proliferation and survival Highly immunosuppressive and invasive tumor microenvironment * Hypoxia-induc

  38. Slide 38: Onvansertib inhibited hypoxia-induced HIF1α expression

    α In 4 RAS-mutant CRC cell lines1, onvansertib inhibited hypoxia-induced HIF1α expression α α α α PLK1 inhibition using siRNA against PLK1 (siPLK1)2 prevented hypoxia-induced HIF1α expression α α β β α

  39. Slide 39: PLK1 inhibition blocks hypoxia-induced HIF1a expression dose-dependently

    PLK1 inhibition blocks hypoxia-induced HIF1a protein expression in a dose dependent manner in KRAS-mutant mCRC cells absence (-) of onvansertib SW620 0, 20% 1% Onv (nM) _- = 25 100 116; at HIF 1 —_—— — — } 8-Actin 40 Normalized HIF1a 1.0 11.9 83 4.1 SW620 and HCT116 ce an additional KRAS-mutant CRC

  40. Slide 40: Prior bev treatment modulates gene pathways conferring resistance

    Prior bev treatment modulates gene pathways that can confer resistance to bev and onvansertib Aim: to identify potential mechanisms of treatment resistance in bev exposed KRAS-mutant mCRC patients Method: KRAS-mutant mCRC patients 1* line treatment fe) . FOLFOX (n=71) 7 . Analysis of genes and pathw

  41. Slide 41: Onv, bev and irinotecan combination in xenografts

    Vehicle Bev – Onv Onv+Bev – Bev+Irin *** Onv+Irin ** Onv+Bev+Irin *

  42. Slide 42: Xenograft response: KRAS G12D and G12C models

    C1143 (KRAS G12D) 600 Vehicle 400 Onvansertib Irinotecan 200 200 Onv+Irino 150 100 *** 50 ** 0 0 5 10 15 20 -50 Treatment time (days) C1144 (KRAS G12C) 250 200 **** 150 100 ** 50 0 0 5 10 15 20 Treatment time (days)

  43. Slide 43: Xenograft response: KRAS G12C, G12D and G13D models

    B8239 (KRAS G12C) C1143 (KRAS G12D) 800 300 600 200 400 *** 100 200 **** *** * 0 0 5 10 15 20 0 5 10 15 20 Treatment time (days) Treatment time (days) C1138 (KRAS G13D) 300 200 *** 100 ** 0 0 5 10 15 20 Treatment time (days)

  44. Slide 44: Onvansertib inhibits vascularization in vitro

    Onvansertib inhibits vascularization in vitro Tube formation assay: HUVEC endothelial cells seeded onto a 3D extracellular matrix form tube-like structures upon stimulation with the angiogenic factor VEGFA, simulating the formation of new blood vessels Treatment with onvansertib (25, 100 and 400nM)

  45. Slide 45: Appendix: Metastatic Pancreatic Adenocarcinoma (mPDAC)

    Appendix: Metastatic Pancreatic Adenocarcinoma (mPDAC)

  46. Slide 46: Path forward: Move to 1st line mPDAC

    mPDAC mPDAC CRDF-001 Ph 2 Second-Line Trial Biomarker Discovery Trial (IIT) • • Path forward: Move to 1st line mPDAC •

  47. Slide 47: Path forward: Move to 1st line mPDAC

    mPDAC mPDAC CRDF-001 Ph 2 Second-Line Trial Biomarker Discovery Trial (IIT) • • Path forward: Move to 1st line mPDAC •

  48. Slide 48: CRDF-001 trial design

    ENROLLMENT CRITERIA OBJECTIVE PRIMARY ENDPOINT 14 DAY SECONDARY ENDPOINT CYCLE

  49. Slide 49: Onvansertib+SoC has higher efficacy than 2nd line historical controls

    Onvansertib+SoC has higher efficacy than 2"9 line historical controls Best Radiographic Response - 21 evaluable patients (as of September 13, 2023)* 400 ve ® Historical controls! £ 3 50 . ' 3 24 \ine 15 line 4 CRDF-001 mPDAC mPDAC 6 = Best Response é a 9 5 PD ORR is 77% 23% $8 0 OO @ O (4/21) 2 | %

  50. Slide 50: Stable disease patients have converted to partial responses over time

    Stable disease patients have converted to partial responses over time Swimmer plot — 23 evaluable patients (as of September 13, 2023)* Q oO ie} 085 te} e e Reason for Discontinuation (o} [e) Adverse Event — — 7 Death Disease Progression (} e e @ Withdrawal of Informed Consent Response oO @ Progressi

  51. Slide 51: Patient responses can deepen over time

    Patient responses to onvansertib+SoC can deepen over time Spider plot - 21 evaluable patients (as of September 13, 2023)* 100+ ( mPFS for SoC is 3.1 months } A T = i} 3 ! i} 6 1 - 2 20+ i} Best Response co} 2 of ! — Partial Response 3 — Progressive Disease 5 — Stable Disease © 20+ @ Confirmed PR ° !

  52. Slide 52: Onvansertib+SoC has longer median PFS than historical controls

    Onvansertib+SoC has longer median PFS than 2"9 line historical controls Progression-free survival — 23 evaluable patients (as of September 13, 2023)* Historical controls! 2r9 line CRDF-001 mPDAC mPFS 5.0mos 3.1 mos 16 week progression- 56% van free? available mber 13, 2023 from 1% line mPDAC 5.5 mos

  53. Slide 53: Path forward: Move to 1st line mPDAC

    mPDAC mPDAC CRDF-001 Ph 2 Second-Line Trial Biomarker Discovery Trial (IIT) • • Path forward: Move to 1st line mPDAC •

  54. Slide 54: Biomarker trial enrollment criteria and objectives

    ENROLLMENT CRITERIA OBJECTIVES • •

  55. Slide 55: Patient 28 responder vs Patient 33 non-responder

    • • Patient 28 (tumor responder) Patient 33 (tumor non-responder)     

  56. Slide 56: Path forward: Move to 1st line mPDAC

    mPDAC mPDAC CRDF-001 Ph 2 Second-Line Trial Biomarker Discovery Trial (IIT) • • Path forward: Move to 1st line mPDAC •

  57. Slide 57: 1st line mPDAC trial design

    SUBSEQUENT CHEMO + ENROLLMENT CRITERIA TWO LEAD-IN COHORTS ONVANSERTIB TREATMENT* • • PRIMARY ENDPOINT 28 DAY CYCLE SECONDARY ENDPOINTS

  58. Slide 58: Appendix: Investigator-Initiated Trial Small Cell Lung Cancer (SCLC)

    Appendix: Investigator-Initiated Trial Small Cell Lung Cancer (SCLC)

  59. Slide 59: Onvansertib demonstrates single-agent activity in SCLC

    Onvansertib demonstrates single-agent activity in SCLC TRIAL RATIONALE Onvansertib monotherapy showed significant tumor growth inhibition against platinum-sensitive and -resistant models Tumor volume (mm3) 2, cisplatin 3mg/kg IP weekly, or In vivo efficacy of onvansertib monotherapy (SCLC xenografts

  60. Slide 60: SCLC trial design

    ENROLLMENT CRITERIA OBJECTIVE PRIMARY ENDPOINT 21 DAY CYCLE SECONDARY ENDPOINTS

  61. Slide 61: Appendix: Investigator-Initiated Trial Triple Negative Breast Cancer (TNBC)

    Appendix: Investigator-Initiated Trial Triple Negative Breast Cancer (TNBC)

  62. Slide 62: Onvansertib + paclitaxel is superior to single agent therapy

    Onvansertib + paclitaxel is superior to single agent therapy TRIAL RATIONALE In vivo efficacy of onvansertib in combination with paclitaxel Tp53-Mutant SUM159 xenografts* The combination of onvansertib + paclitaxel = 1200- showed significant synergy S e 1000 + control (n=8) =) re 800 | a So 600-1 Lo

  63. Slide 63: TNBC trial design

    ENROLLMENT CRITERIA PRIMARY ENDPOINTS − 28 DAY CYCLE

  64. Slide 64: TNBC trial endpoints

    ENROLLMENT CRITERIA PRIMARY ENDPOINTS − 28 DAY CYCLE SECONDARY ENDPOINT

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