Genocea Biosciences Inc · OTC:GNCAQ

Genocea Biosciences — Investor Presentation (November 2020)

26 slides from Genocea Biosciences's investor presentation, Nov 18, 2020

  1. Slide 1: Better personalized cancer immunotherapies through better neoantigen targeting

    Better personalized cancer immunotherapies through better neoantigen targeting November 2020

  2. Slide 2: Disclaimer

    This presentation contains “forward-looking” statements that are within the meaning of federal securities laws and are based on our management’s beliefs and assumptions and on information currently available to management. Forward-looking statements include information concerning our possible or ass

  3. Slide 3: Genocea at a glance

    Genocea at a glance Revolutionary antigen discovery platform TARGETS MATTER GEN-009 GEN-011 Neoantigen Neoantigen Differentiated vaccine cell therapy clinical-stage immunotherapies Differentiated Ph 1/2a Accruing patients in immune response, clinical Ph 1/2a trial responses 3

  4. Slide 4: ATLAS: high throughput platform for true antigen selection

    ATLAS: high throughput platform harnessing the immune system for true antigen selection Tumor NGS biopsy analysis Unique Bacterial plasmids for vectors Autologous every expressing each dendritic cell candidate candidate neoantigen Autologous T cell Blood sample Only ATLAS can identify InhibigensTM –

  5. Slide 5: Inhibigen identification and exclusion is critical to ensure therapeutic efficacy

    Inhibigen identification and exclusion is critical to ensure therapeutic efficacy 1,600 Adjuvant only 1,000 ) 1,400 Protective vaccine 1. Therapeutic mouse vaccination Adjuvant only 3 ) 3 1,200 Protective vaccine + Inhibigen with a pool of ATLAS-identified 800 Inhibigens + Adjuvant Inhibigens drives

  6. Slide 6: ATLAS has powerful advantages over other neoantigen selection approaches

    ATLAS has powerful advantages over other neoantigen selection and targeting approaches Benefits ATLAS advantages Identifies all true neoantigens: i.e., all surface-presented peptides eliciting anti- tumor T cell responses. Delivers cell therapies and vaccines that minimize tumor escape Enables great

  7. Slide 7: GEN-009 Neoantigen Vaccine

    GEN-009 Unprecedented immune responses; Neoantigen Vaccine Emerging clinical efficacy 7

  8. Slide 8: Simple, scalable production and delivery

    Simple, scalable production and delivery 8

  9. Slide 9: GEN-009 Phase 1/2a trial design

    GEN-009 Phase 1/2a trial design Part A • Vaccine monotherapy in patients with no evidence of disease • Multiple tumor types with CPI approval • Objectives: safety, immunogenicity • Status: all patients in long-term follow-up • Part B • Combination of GEN-009 and standard-of-care PD-1-based regimens

  10. Slide 10: Strong immune responses and recurrence-free survival in Part A

    Strong immune responses and recurrence-free survival in Part A Immune response frequency % neoantigens with immune responses 60% 99% Best peer results1 GEN-009 Achieved in combination Monotherapy with CPI Potential patient benefits Response breadth to prevent tumor escape 0 6 12 18 24 1 Sahin, et al

  11. Slide 11: GEN-009 Part B is being studied in two distinct patient groups

    GEN-009 Part B is being studied in two distinct patient groups 1. Checkpoint-sensitive / controlled GEN-009 dosing +/- prior therapy SOC and GEN-009 manufacture Biopsy Enroll Progression and GEN-009 dosing salvage treatment 2. Checkpoint-resistant SOC Therapy Melanoma: nivo monotherapy or nivo + ipi

  12. Slide 12: Part B trial design enables assessment of vaccine specific contribution

    Part B trial design enables assessment of vaccine specific contribution to clinical responses Each patient can serve as own control , Pre-Vaccination Post-Vaccine Dose 1 PD (+20%) @Scan Baseline © Ss PR (-30%) o 3 “"" etfectattributable to vaccine % Change in Target Lesion Sum be & & $s Vaccine Dose

  13. Slide 13: Compelling signal of response in checkpoint-sensitive patients

    Compelling signal of response in checkpoint-sensitive patients GEN-009 responses 1 CR and 2 PR of 7 evaluable Overall responses 2/9 (22%) with CR 4/9 (67%) with PR 2/9 (22%) with SD 7/9 (78%) progression-free 13

  14. Slide 14: Early evidence of stabilization in checkpoint-resistant patients

    Early evidence of stabilization in checkpoint-resistant patients Investigator iRECIST read after GEN-009 5/7 disease control 1 patient with possible pseudo-progression 14

  15. Slide 15: GEN-009 continues to demonstrate unparalleled immune responses

    GEN-009 continues to demonstrate unparalleled immune responses + + 900 PBMC 900 CD4 350 CD8 ~35,000/million ~30,000/million ~10,000/million 800 IFN-gamma 800 IFN-gamma IFN-gamma 300 TNF-alpha TNF-alpha TNF-alpha 700 cells T 700 cells T + + 250 600 600 500 500 200 400 400 150 300 300 100 200 200 IVS

  16. Slide 16: GEN-009: Delivering on the promise of neoantigen therapies

    GEN-009: Delivering on the promise of neoantigen therapies Compelling early signal persists with longer follow-up Clear anti-tumor activity “Targets matter” Highly differentiated immunogenicity results Powerful readthrough to GEN-011 ATLAS enables unique breadth and specificity 16

  17. Slide 17: GEN-011 Neoantigen T cell Therapy

    GEN-011 Potential best-in-class solid tumor Neoantigen T cell Therapy adoptive T cell therapy 17

  18. Slide 18: TIL therapy: Current gold standard for solid tumor cell therapy

    TIL therapy: Current gold standard for solid tumor cell therapy Tumor-infiltrating lymphocyte (TIL) 2,3,4 CAR-T therapy Unproven in solid tumors TCR-transduced (TCR-T) Limited clinical validation HLA-limited Durable efficacy Potential safety concerns1 in checkpoint-refractory patients 1. Linette et

  19. Slide 19: GEN-011: A new category of solid tumor cell therapy

    GEN-011: A new category of solid tumor cell therapy: Neoantigen-targeted Peripheral T cells (NPTs) Peripheral blood (leukopak) GEN-011 Up to 30 neoantigens Neoantigen-specific cell expansion in fully closed single-use vessels NPTs: Non-engineered, neoantigen-specific 19

  20. Slide 20: GEN-011 overcomes limitations of other solid tumor cell therapies

    GEN-011 overcomes limitations of other solid tumor cell therapies GEN-011 Advantages Features GEN-011 TIL TCR-T Targets up to 30 neoantigens to limit tumor escape Avoids Inhibigens that may be detrimental to clinical response Greater efficacy Includes CD4+ and CD8+ neoantigen-specific T cells Non-ex

  21. Slide 21: GEN-011 provides unparalleled breadth of neoantigen coverage

    GEN-011 provides unparalleled breadth of neoantigen coverage GEN-011 targets up to 30 neoantigens Recent conventional TIL data show responses to an average 89% of 6% of the predicted neoantigens2 Recent selected TIL data show successful amplification to only 4% of antigens included in the process1 G

  22. Slide 22: GEN-011 delivers billions of NPTs with desired phenotype

    Additionally, GEN-011 delivers billions of NPTs that are: The desired memory phenotype Highly neoantigen-specific 96% Antigen Specific 100 75 50 % Frequency 25 0 Activation Marker 2 Naive Terminal Memory memory (Cm+Em) Activation Marker 1 Powerfully cytolytic against their targets More active and po

  23. Slide 23: Robust and rapidly scalable manufacturing process

    Robust and rapidly scalable manufacturing process with fully closed single-use technology Peripheral blood Phenotypic (leukopak) GEN-011 Process cell sort Peripheral blood from every patient, dramatically T cells expanding accessible patient population Up to 30 verified Robust process designed to de

  24. Slide 24: TITAN trial: Phase 1/2a study of GEN-011

    Trial Objectives TITAN trial: Phase 1/2a study of GEN-011 in patients with CPI–resistant solid tumors Targeted indications Cohort A Trial objectives Patients with immune Multiple low dose • Safety responsive tumors that have (up to 12 patients) • Clinical activity not achieved an adequate • No lymph

  25. Slide 25: GEN-011: Transforming neoantigen T cell therapy for solid tumors

    GEN-011: Transforming neoantigen T cell therapy for solid tumors CD8+ and CD4+ T cells targeting up to 30 neoantigens Peripheral blood enabling greater accessibility, activity and durability Robust and rapidly scalable manufacturing process 25

  26. Slide 26: Contact details

    NASDAQ: GNCA 100 Acorn Park Drive Cambridge, MA 02140 USA +1 617.876.8191 www.genocea.com 26

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