Silence Therapeutics PLC · NASDAQ:SLN

Silence Therapeutics — FY2024 Earnings Presentation

23 slides from Silence Therapeutics's earnings presentation, Feb 27, 2025

  1. Slide 1: Full Year 2024 Results

    Exhibit 99.2 Full Year 2024 Results February 27, 2025

  2. Slide 2: Forward-Looking Statements

    Forward-Looking Statements The information contained in this presentation is being supplied and communicated to you solely for your information and may not be reproduced, further distributed to any other person or published, in whole or in part, for any purpose. The distribution of this presentation

  3. Slide 3: Company Overview

    Company Overview CRAIG TOOMAN Chief Executive Officer 3

  4. Slide 4: Silence Delivered Strong Clinical Results and Pipeline Advancement in 2024

    Silence Delivered Strong Clinical Results and Pipeline Advancement in 2024 ZERLASIRAN DIVESIRAN GOLD PLATFORM • ALPACAR-360 Ph. 2 • SANRECO Ph. 1 study • SLN312 (licensed to study delivered positive delivered positive results AstraZeneca) entered results in high Lp(a) in PV Ph. 1 study • Finalized P

  5. Slide 5: 2025: Advancing Clinical Pipeline in Rare Conditions with High Unmet Needs

    2025: Advancing Clinical Pipeline in Rare Conditions with High Unmet Needs DIVESIRAN GOLD PLATFORM EXTRA HEPATIC • First-in-class siRNA for PV • SLN548 (complement factor • Advancing programs targeting B) Ph. 1 study start multiple cell types • SANRECO Ph. 1 data anticipated in 2H 2025 presentations

  6. Slide 6: Financial Review and 2025 Guidance

    Financial Review and 2025 Guidance RHONDA HELLUMS Chief Financial Officer 6

  7. Slide 7: 2024 Financial Results

    2024 Financial Results Financial Results ($ thousands) FY 2024 FY 2023 Revenue $43,258 $31,634 Cost of Sales ($11,810) ($12,867) Research and Development Costs ($67,883) ($56,937) General and Administrative Expenses ($26,884) ($26,222) Operating Loss ($63,319) ($64,383) Net Loss ($45,309) ($54,228)

  8. Slide 8: 2025 Financial Guidance

    2025 Financial Guidance FINANCIAL PRIORITIES CASH GUIDANCE • Divesiran for PV Projected Runway • Advancing pipeline in rare conditions Extended into 2027 • Extra-hepatic 8 8

  9. Slide 9: Clinical Update

    Clinical Update STEVEN ROMANO, MD Chief R&D Officer 9

  10. Slide 10: Polycythemia Vera (PV): A Rare Blood Cancer We Are Targeting

    Polycythemia Vera (PV): A Rare Blood Cancer We Are Targeting • Myeloproliferative neoplasm characterized by the excessive production of red blood cells (RBCs) Treatment goal is o Elevated hematocrit (HCT) is a hallmark of the disease, to control HCT indicating overproduction of RBCs <45% to reduce •

  11. Slide 11: People Living with PV Experience Significant Unmet Needs

    People Living with PV Experience Significant Unmet Needs Inconsistent HCT Control Iron Deficiency Disease Burden • Patients with HCT between 45- • Most patients with PV are iron • Patients with elevated HCT often 50% are ~4x more likely to die deficient due to depleted bone require frequent phleboto

  12. Slide 12: Divesiran is a First-in-Class siRNA for PV

    Divesiran is a First-in-Class siRNA for PV Divesiran has FDA Fast Track and Orphan Drug Designations in PV 12 12

  13. Slide 13: SANRECO Phase 1 Study of Divesiran in PV Patients

    SANRECO Phase 1 Study of Divesiran in PV Patients Open-label, dose-finding study of divesiran in PV patients Design • 21 patients Cohorts • 6 patients at 3 mg/kg, 8 patients at 6 mg/kg and 7 patients at 9 mg/kg • Administered subcutaneously every 6 weeks for four doses Dosing & • 16-week follow-up p

  14. Slide 14: Divesiran Reduced Phlebotomy Frequency in PV Patients

    Divesiran Reduced Phlebotomy Frequency in PV Patients Cohort 1 (3mg/kg) Cohort 2 (6mg/kg) Cohort 3 (9mg/kg) 79 Phlebotomies Prior to Dosing, 5 in Treatment Period and 2 in Follow-up; No Well-Controlled Patients (HCT<45% at baseline) Required a Phlebotomy 1. Interim Phase 1 results presented at the A

  15. Slide 15: Divesiran Reduced Hematocrit in PV Patients

    Divesiran Reduced Hematocrit in PV Patients Dosing Divesiran Decreased Hematocrit in All Cohorts 1. Interim Phase 1 results presented at the American Society of Hematology (ASH) 2024 Annual Meeting. December 8, 2024. Interim Phase 1 results included 19 PV patients. 2. Orange dotted line 15 15 repres

  16. Slide 16: Divesiran Treatment Produced Sustained Increases in Hepcidin

    Divesiran Treatment Produced Sustained Increases in Hepcidin Dosing Divesiran Treatment Induced Hepcidin 1. Interim Phase 1 results presented at the American Society of Hematology (ASH) 2024 Annual Meeting. December 8, 2024. Interim Phase 1 results included 19 PV patients. 2. Orange dotted line repr

  17. Slide 17: Divesiran Demonstrated a Favorable Safety and Tolerability Profile

    Divesiran Demonstrated a Favorable Safety and Tolerability Profile • Divesiran was well tolerated with no dose-limiting toxicities • Treatment emergent adverse events (TEAEs) were recorded in 19/21 participants • Majority of TEAEs (84%) were grade 1 • No TEAEs grade > 2 • 52 mild self-limiting injec

  18. Slide 18: SANRECO Phase 2 Study of Divesiran in PV Patients

    SANRECO Phase 2 Study of Divesiran in PV Patients Design Randomized, double-blind study of divesiran in up to 40 PV patients • PV diagnosis Key • At least 3 phlebotomies in the last 6 months or 5 in the last year prior to screening Inclusion • Stable dose of cytoreductive agents allowed Criteria • H

  19. Slide 19: The Complement Pathway

    The Complement Pathway Complement Pathway(s) CC lassi lassi cal cal Lectin Alternative FP MBL C3(H O 2 Ficolins C1q C1r C3 “tick over” MASP1,2,3 C1s FH C3b FB C2 C4 FD C4b2b C3bBb C3(H O)Bb 2 C3 C3b C3a FB FD C3bBb Inflammatory C3bBb3b signaling Chemoattraction C5 C5a C5b C5b9 Tissue Injury MAC Cell

  20. Slide 20: Phase 1 Study of SLN548 in Healthy Volunteers

    Phase 1 Study of SLN548 in Healthy Volunteers Design Randomized, double-blind, placebo-controlled, single-ascending dose study • Approximately 32 healthy volunteers Enrollment • All patients will be vaccinated and receive prophylactic antibiotics as appropriate • 4 cohorts, 8 subjects per cohort Dos

  21. Slide 21: Anticipated 2025 Milestones

    Anticipated 2025 Milestones Divesiran – Polycythemia Vera (PV) SANRECO Phase 1 follow-up completion Phase 1 data at medical meetings 2025 SANRECO Phase 2 study full enrollment 4Q 2025 SLN548 – Complement-Mediated Diseases Phase 1 study initiation 2H 2025 21 21

  22. Slide 22: Q&A

    Q&A 22

  23. Slide 23: Thank You

    } SILENCE THERAPEUTICS > THANK YOU!

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