Agenus Inc. · NASDAQ:AGEN

Agenus — Agenus Corporate Event at ESMO 2023

34 slides from Agenus's conference presentation, Oct 22, 2023

  1. Slide 1: Immunotherapy Revolution 2.0: Agenus Corporate Event @ ESMO 2023

    Immunotherapy Revolution 2.0 Agenus Corporate Event @ ESMO 2023 October 22, 2023

  2. Slide 2: BOT/BAL Potential: $48B IO Market

    BOT/BAL Potential $48B 2022 IO market size 1 PD-(L)1 HOT TUMOR Melanoma 1st gen CTLA-4 NSCLC Pancreatic CRC COLD TUMOR BOT/BAL Sarcomas EARLY-STAGE LATE-STAGE 2 1. Global Data IO Market Report

  3. Slide 3: BOT/BAL and Standard of Care Clinical Readouts by Treatment Setting

    BOT/BAL and Standard of Care Clinical Readouts by Treatment Setting Target Population Overall Response Rate (ORR%) Survival Treatment Setting (current Standard of SOC median Overall Care, or SOC) SOC or Comparator BOT or BOT/BAL BOT or BOT/BAL Survival (mOS) MSS CRC Non-active 74% 12-month OS* 2/3L+

  4. Slide 4: Potential BLA Filings

    Potential BLA Filings Based on promising clinical signal across treatment settings Treatment US + EU5 BOT/BAL Highlights Development Plan Patients1 Setting 2/3L+ MSS CRC Data in >300 Patients • U.S. and EU regulatory interactions ongoing 13,000 NLM Fast Track Designation Granted • Planned BLA filing

  5. Slide 5: CRC

    Immunotherapy Revolution 2.0 CRC

  6. Slide 6: Colorectal Cancer (CRC): Growing Prevalence, High Unmet Need

    Colorectal Cancer (CRC): Growing Prevalence, High Unmet Neet CRC is the 3rd most common cause of cancer mortality globally1 Despite advances in treatment of CRC, long term survival remains dismal2,3 • 3-year relative OS for patients with metastatic CRC is ~30-35% • 5-year relative OS for patients wi

  7. Slide 7: Updated Clinical Data in Refractory MSS CRC

    Updated Clinical Data in Refractory MSS CRC 100 Change in Sum of Target Lesions (%) 90 80 70 2/3L+ MSS CRC with No Active Liver Mets 60 50 Efficacy Evaluable Population (n=70) 40 30 20 10 Confirmed ORR, % (95% CI) 24% (15%, 36%) 0 -10 -20 BOR, n (%) -30 -40 -50 -60 CR 1 (1%) -70 -80 -90 PR 16 (23%)

  8. Slide 8: Updated Clinical Data in Refractory MSS CRC: Overall Survival

    Updated Clinical Data in Refractory MSS CRC Median OS, 12-month OS, % Median F/U, Months (95% CI) (95% CI) Months (Range) 100 No Active Liver Mets ITT (n=77) NR (16.5 , NR) 71% (58%, 81%) 11.1 (0.6, 40.5) No Active Liver Mets EE (n=70) NR (16.5 , NR) 74% (61%, 83%) 12.3 (1.4 40.5) 90 Overall Surviva

  9. Slide 9: Expansion into Earlier Treatment Lines in MSS CRC

    Expansion into Earlier Treatment Lines in MSS CRC Investigator sponsored studies support ongoing development and registrational strategy IST / Disease Setting Anticipated Data Readout 1L MSS CRC • 1H 2024 BOT/BAL + Bev + FOLFOX vs. Bev + FOLFOX Marwan Fakih, MD Neoadjuvant MSS & MSI-H CRC • 4Q 2023

  10. Slide 10: "Window of Opportunity" Neoadjuvant CRC Study Shows Promising Results

    “Window of Opportunity” Neoadjuvant CRC Study Shows Promising Results Treatment with BOT/BAL led to significant tumor reduction within four weeks; well tolerated • BOT/BAL treatment with Standard of Care surgery Topline results: • Major tumor reductions observed within four weeks • No safety signals

  11. Slide 11: "Window of Opportunity" - Neoadjuvant CRC Study Shows Promising Results

    “Window of Opportunity” - Neoadjuvant CRC Study Shows Promising Results Treatment with BOT/BAL led to significant tumor reduction within four weeks; well tolerated Pathologic Tumor Reductions (%) by Individual Patient 0% 0% -10% -10% -20% -30% -25% -40% -50% -50% -50% -60% -70% -80% -80% -90% -90% -

  12. Slide 12: BOT: Potential to Become a Backbone Therapy in CRC

    BOT: Potential to Become a Backbone Therapy in CRC US/EU5 - CRC Patients Treated Annually 2/3L+ MSS CRC 2/3+ • >300 patients treated with BOT/BAL MSS, NLM only – ORR: 24%; 74% 12-month OS; mOS: not reached (n=70) ~13,000 • Fast Track Designation granted by FDA in April 2023 Initial Opportunity • BLA

  13. Slide 13: Rapid Development Pathway for BOT/BAL in 2/3L+ MSS CRC

    Rapid Development Pathway for BOT/BAL in 2/3L+ MSS CRC Registration Strategy Regulatory Engagement Case Study: Recent Precedence for Accelerated Approval in • No active liver mets (clinical marker) US Advanced mCRC • Filing planned for midyear 2024 • Fast Track designation granted • Tucatinib & tras

  14. Slide 14: Go-To-Market Strategy

    Go-To-Market Strategy Experienced leadership team in place to deliver successful launch of BOT upon approval Clinical Team with I/O Pioneers Extensive Medical Affairs Engagement Commercial Preparedness ✓ KOL relationships across 40+ countries ✓ 25+ FTEs with big pharma and biotech experience ✓ Robus

  15. Slide 15: 2L Pancreatic

    Immunotherapy Revolution 2.0 2L Pancreatic

  16. Slide 16: Clinical Data in 2L Pancreatic Cancer

    Clinical Data in 2L Pancreatic Cancer Patients (n=6) dosed with 150mg BOT+gem/abraxane after FOLFIRINOX failure for metastatic disease All patients had liver metastases Tumor Marker % Change From Baseline Clinical Data on Six Patients CA19-9 or CEA % tumor reduction after one (8W) or two (16W) scans

  17. Slide 17: BOT Potential in Advanced Pancreatic

    BOT Potential in Advanced Pancreatic US/EU5 - Pancreatic Patients Treated Annually 2L Pancreatic Cancer 2L • Randomized Phase 2 (N=60) ongoing with BOT + gem/Abraxane; expected to be fully Relapsed/Refractory to enrolled by EOY 2023 FOLFIRINOX • High unmet need: SOC has <15% ORR, 7-8 month mOS ~22,0

  18. Slide 18: 2L+ Melanoma

    Immunotherapy Revolution 2.0 2L+ Melanoma

  19. Slide 19: BOT and BOT/BAL Responses in CTLA-4/PD-1 R/R (2L+) Melanoma

    BOT and BOT/BAL Responses in CTLA-4/PD-1 R/R (2L+) Melanoma Cutaneous melanoma patients receiving BOT monotherapy or BOT/BAL combination 100 90 Prior Treatment Cutaneous 2L+ Melanoma 80 70 PD-1 Relapsed/Refractory (R/R) Efficacy Evaluable (First study n=10) Percent Change from Baseline 60 PD-1/CTLA-

  20. Slide 20: BOT Monotherapy Responses in CTLA-4/PD-1 R/R (2L+) Melanoma

    BOT Monotherapy Responses in CTLA-4/PD-1 R/R (2L+) Melanoma Demonstration of BOT differentiated profile Dose BRAF Prior Tx BORR BORR% Sites Phase 1 1. BRAF + MEK inhibtor C800-01 271-212 2mg/kg Mutant 2. anti-PD-1 PR -50% Adrenal, Inguinal, Oral/ Cervical 3. anti-CTLA-4 + anti-PD-1 1. anti-PD-1 447-

  21. Slide 21: BOT Potential in Advanced Melanoma

    BOT Potential in Advanced Melanoma US/EU5 - Melanoma Patients Treated Annually 2L+ Melanoma 2L+ • Phase 2 cohorts with BOT monotherapy enrollment complete; expansion with BOT/BAL Relapsed/Refractory cohorts ongoing to Ipi/Nivo • High unmet need: no established Standard of Care in IO relapsed/refract

  22. Slide 22: 2L+ NSCLC

    Immunotherapy Revolution 2.0 2L+ NSCLC

  23. Slide 23: Responses from Phase 1 in 2L+ NSCLC

    Responses from Phase 1 in 2L+ NSCLC 100 90 Efficacy Evaluable (n=9) 80 70 ORR, % 56% Best % Change from Baseline 60 50 40 30 BOR, n (%) 20 10 0 CR 0 (0) -10 -20 -30 PR 5 (56) -40 -50 -60 SD 3 (33) -70 -80 PD 1 (11) -90 -100 0 50 100 150 200 250 300 350 400 450 500 550 600 650 700 DCR (CR + PR + SD),

  24. Slide 24: 2L+ Sarcomas

    Immunotherapy Revolution 2.0 2L+ Sarcomas

  25. Slide 25: BOT/BAL Combination Response in Refractory Sarcomas

    BOT/BAL Combination Response in Refractory Sarcomas Responses in heterogenous sarcoma population RECIST Efficacy Evaluable (N=41)* iRECIST v1.1 Other subtypes (excluding ddLipo, UPS) AS (c) AS (v) LMS ddLipo UPS 20% 17% ORR†, % (95% CI) (9—35)​ (7—32)​ 1mg/kg (n=27) 15% 11% 2mg/kg (n=14) 29% 29% BOR

  26. Slide 26: BOT/BAL Combination Response in Refractory Sarcomas

    BOT/BAL Combination Response in Refractory Sarcomas Broad activity in heterogenous sarcoma population RECIST Efficacy Evaluable (N=41)* iRECIST v1.1 20% 17% AS LMS Other ORR†, % (95% CI) (9—35)​ (7—32)​ 1mg/kg (n=27) 15% 11% 2mg/kg (n=14) 29% 29% BOR, n (%)​ CR​ 0 0 PR​ 8 (20)​ 7 (17)​ SD​ 18 (44)​

  27. Slide 27: 2L+ Ovarian

    Immunotherapy Revolution 2.0 2L+ Ovarian

  28. Slide 28: Platinum R/R Ovarian BOT/BAL Efficacy

    Platinum R/R Ovarian BOT/BAL Efficacy Histology Efficacy Evaluable (n=24) Best Percent Change From Baseline (%) High grade serous Clear cell Carcinosarcoma ORR, %* 33% (95% CI, 15.6-55.3%) Endometrioid/clear cell 20% Tumor Growth BOR, n (%) ∞ CR 1* (4) PR 7* (29) 30% Tumor Reduction SD 8 (33) 0 6 12

  29. Slide 29: BOT Mechanism of Action

    Immunotherapy Revolution 2.0 BOT Mechanism of Action

  30. Slide 30: BOT: Multi-Functional Anti-CTLA-4 Immune Activator

    BOT: Multi-Functional Anti-CTLA-4 Immune Activator BOT Mechanism of Action “Turning Cold Tumors Hot” • Primes and expands T cells to eradicate tumor • Activates Natural Killer (NK) cells, and antigen presenting cells (APCs) to identify and attack the cancer • Reduces regulatory T cells that suppress

  31. Slide 31: BOT/BAL Safety

    Immunotherapy Revolution 2.0 BOT/BAL Safety

  32. Slide 32: BOT Has a Manageable Toxicity Profile

    BOT Has a Manageable Toxicity Profile TRAEs of ≥10% related to BOT; data from expanded Phase 1b study All Patients Treated with BOT/BAL Combo at 1mg/kg or 2mg/kg BOT (n = 255) n (%) All Grade Grade 3 Grade 4 Any TRAE 204 (80) 70 (27) 5 (2) GASTROINTESTINAL Immune-mediated diarrhea/colitis* 84 (33) 3

  33. Slide 33: Achievements & Upcoming Catalysts

    Immunotherapy Revolution 2.0 Achievements & Upcoming Catalysts

  34. Slide 34: Achievements & Upcoming Catalysts

    Achievements & Upcoming Catalysts 2023 (Completed) 1H 2024 Mid 2024 2H 2024 1H 2025 ✓ Data from Phase 1b: 2/3L+ • Phase 2 Data: 2L • Planned BLA filing: • Phase 2 Data: • Potential BLA MSS CRC (ASCO GI 2023) Pancreatic 2/3L+ MSS CRC 2L+ Melanoma filing: Pancreatic ✓ Data from Phase 1b: ovarian • Pha

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