Jasper Therapeutics, Inc. · NASDAQ:JSPR

Jasper Therapeutics — EAACI Congress 2024

20 slides from Jasper Therapeutics's conference presentation, Jun 1, 2024

  1. Slide 1: EAACI Congress 2024

    EAACI Congress 2024 Valencia, Spain 31 May - 3 June Revolutionising Patient Care Through the Power of Data Science ein | | OMe Ray | HEED | ooe@one #EAAClIcongress www.eaaci.org

  2. Slide 2: Phase 1b/2a BEACON Study in Chronic Spontaneous Urticaria

    Phase 1b/2a BEACON Study in Chronic Spontaneous Urticaria Randomized, Double-Blind, Placebo-Controlled, Multiple Ascending Dose Study of Briquilimab Subcutaneously Administered Prof. Marcus Maurer Professor of Dermatology and Allergy, Head of Dermatological Allergology and Director of Research at th

  3. Slide 3: Disclosure of Conflict of Interest

    Disclosure of Conflict of Interest Marcus Maurer is or recently was a speaker and/or advisor for and/or has received research funding from Allakos, Alexion, Alvotech, Almirall, Amgen, Aquestive, argenX, AstraZeneca, Celldex, Celltrion, Clinuvel, Escient, Evommune, Excellergy, GSK, Incyte, Jasper, Ka

  4. Slide 4: Table of Content

    Table of Content 1 Mast Cells 2 Briquilimab 3 Trial Design 4 Summary

  5. Slide 5: Mast Cells

    1 Mast Cells Chronic urticaria is an inflammatory disease driven by the activation of skin mast cells • Devastating disease characterized by severe itching, hives/wheals, inflammation, and/or angioedema occurring for >6 weeks • Patients suffer numerous physical/psychological symptoms that significan

  6. Slide 6: Mast Cells

    1 Mast Cells Mast cells (MCs) are key drivers of the inflammatory response in a number of allergic and dermatologic diseases • MCs are potent drivers of inflammation in skin, lungs and gut • Activated MCs release pro-inflammatory compounds that drive diseases such as CSU, & CIndU • Current approved

  7. Slide 7: Mast Cells

    1 Mast Cells Depletion of mast cells by anti-c-Kit monoclonal antibody blockade is a novel approach to treat urticarias • SCF signaling through c-Kit prevents mast cells apoptosis via the Bim-mediated pathway1 • Blockade of c-Kit signaling on MCs leads to apoptosis and phagocytic clearance2 • Partia

  8. Slide 8: Briquilimab

    2 Briquilimab Mast cell survival assay Briquilimab blocks c-Kit signaling leading to durable mast cell depletion • Briquilimab is an aglycosylated IgG1 anti c-Kit antibody with high affinity to c-Kit (Kd <5pm) • Briquilimab blocks c-Kit signaling by blocking the SCF ligand binding site on the recept

  9. Slide 9: Briquilimab

    2 Briquilimab Skin mast cell depletion 4 weeks after single dose (≥42 mg)1 Single subcutaneous injection of briquilimab Briquilimab Healthy Volunteer Phase 1 Subcutaneous Study significantly depletes human skin MCs • SC dose above 80mg, potently depletes skin MCs • Dose dependent MC depletion • MC d

  10. Slide 10: Briquilimab

    2 Briquilimab Pharmacokinetics (≥10 mg)1 Briquilimab Healthy Volunteer Phase 1 Subcutaneous Study Briquilimab pharmacokinetics may enable optimal biologic dosing • Briquilimab is designed to minimize unwanted c- Kit-related effects • Half life = 9 days • Low frequency of ADAs and do not appear to af

  11. Slide 11: Trial Design

    3 Trial Design Briquilimab Phase 1b/2a BEACON study in patients with Chronic Spontaneous Urticaria (CSU) • Study Goal: • Identify the optimal therapeutic doses & dosing frequency of SC briquilimab to inform future registrational trials • Key Objectives: • Multiple briquilimab dose levels, and interv

  12. Slide 12: Trial Design

    3 Trial Design Phase 1b/2a BEACON Study in Chronic Spontaneous Urticaria Randomized, Double-Blind, Placebo-Controlled, Multiple Ascending Dose Study

  13. Slide 13: Trial Design

    3 Trial Design Phase 1b/2a BEACON Study in Chronic Spontaneous Urticaria Randomized, Double-Blind, Placebo-Controlled, Multiple Ascending Dose Study Screening/Eligibility Study Operations Key Assessments ü Disease Scores: UAS7, UCT • CSU diagnosis ≥ 6 mos. • H1-antihistamine-failed • US Lead: Tom Ca

  14. Slide 14: Trial Design

    3 Trial Design Phase 1b/2a BEACON Study in Chronic Spontaneous Urticaria Randomized, Double-Blind, Placebo-Controlled, Multiple Ascending Dose Study Screening/Eligibility Study Operations Key Assessments ü Disease Scores: UAS7, UCT • CSU diagnosis ≥ 6 mos. • H1-antihistamine-failed • US Lead: Tom Ca

  15. Slide 15: Trial Design

    3 Trial Design Phase 1b/2a BEACON Study in Chronic Spontaneous Urticaria Randomized, Double-Blind, Placebo-Controlled, Multiple Ascending Dose Study Screening/Eligibility Study Operations Key Assessments ü Disease Scores: UAS7, UCT • CSU diagnosis ≥ 6 mos. • H1-antihistamine-failed • US Lead: Tom Ca

  16. Slide 16: Trial Design

    3 Trial Design Phase 1b/2a BEACON Study in Chronic Spontaneous Urticaria Randomized, Double-Blind, Placebo-Controlled, Multiple Ascending Dose Study Screening/Eligibility Study Operations Key Assessments ü Disease Scores: UAS7, UCT • CSU diagnosis ≥ 6 mos. • H1-antihistamine-failed • US Lead: Tom Ca

  17. Slide 17: Trial Design

    3 Trial Design Phase 1b/2a BEACON Study in Chronic Spontaneous Urticaria Randomized, Double-Blind, Placebo-Controlled, Multiple Ascending Dose Study Screening/Eligibility Study Operations Key Assessments ü Disease Scores: UAS7, UCT • CSU diagnosis ≥ 6 mos. • H1-antihistamine-failed • US Lead: Tom Ca

  18. Slide 18: Summary

    4 Summary • Briquilimab design and characteristics offers a new approach to treatment of MC diseases • Beacon study is enrolling to assess an optimal biologic dosing schedule • Takes advantage of the MC recovery time (over 12 weeks) • Potential to deplete MCs, with durable efficacy and reduced undes

  19. Slide 19: Summary

    4 Summary Thank you to the patients and our Beacon investigators in the US and Germany!

  20. Slide 20: EAACI Congress 2024

    EAACI Congress 2024 Valencia, Spain 31 May - 3 June Revolutionising Patient Care Through the Power of Data Science ein | | OMe Ray | HEED | ooe@one #EAAClIcongress www.eaaci.org

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