Scholar Rock Holding Corporation · NASDAQ:SRRK

Scholar Rock — Cure SMA 2020

11 slides from Scholar Rock's conference presentation, Jun 12, 2020

  1. Slide 1: A Phase 2 Study to Evaluate SRK-015 in Later-Onset SMA (TOPAZ): An Introduction

    A Phase 2 Study to Evaluate the Efficacy and Safety of SRK-015 in Patients with Later-Onset Spinal Muscular Atrophy (TOPAZ): An Introduction Amy Place, PhD, MBA, MS, RD, CLT Global Medical Affairs Scholar Rock, Inc. Cure SMA June 12th, 2020 1 | CONFIDENTIAL AND PROPRIETARY

  2. Slide 2: Disclaimer

    Disclaimer • SRK-015 is an investigational product candidate that is currently being evaluated in a clinical trial • SRK-015 has not been approved by the U.S. Food and Drug Administration (FDA), the European Commission, or any other health authority, and the safety and effectiveness of this molecule

  3. Slide 3: TOPAZ Study Schematic: Treatment Period

    TOPAZ Study Schematic: Treatment Period www.clinicaltrials.gov 3 | CONFIDENTIAL AND PROPRIETARY NTC03921528

  4. Slide 4: SRK-015 Phase 2 Trial (TOPAZ): Objectives and Design

    SRK-015 Phase 2 Trial (TOPAZ): Objectives and Design Cohort 1 Cohort 2 Cohort 3 • N= 20; ages 5-21 • N= 20; ages ≥2 • N= 15; ages 5-21 • Double-blind, randomized (1:1) to 2 • Open-label, single-arm • Open-label, single-arm Design • 20 mg/kg SRK-015 IV Q4W • 20 mg/kg SRK-015 IV Q4W mg/kg or 20 mg/kg

  5. Slide 5: TOPAZ Study Schematic: Extension Period

    TOPAZ Study Schematic: Extension Period www.clinicaltrials.gov 5 | CONFIDENTIAL AND PROPRIETARY NTC03921528

  6. Slide 6: Study Participant Baseline Demographics (1/2)

    Study Participant Baseline Demographics (1/2) Age (Years) at Informed Consent by Cohort Age (Years) at Diagnosis by Cohort Cohort N Mean Std Min Med Max 1 23 12.6 4.53 7 13.0 21 2 15 11.7 3.94 8 10.0 19 3 20 4.0 1.23 2 4.0 6 Total 58 9.4 5.31 2 8.0 21 Scholar Rock. Data on File. March 2020 6 | CONFI

  7. Slide 7: Study Participant Baseline Demographics (2/2)

    Study Participant Baseline Demographics (2/2) Sex Distribution by Cohort Ethnicity Distribution by Cohort Race Distribution by Cohort Maintenance Dose of Nusinersen at Screening† †Excluded Cohort 1 patients who are not on Nusinersen 7 | CONFIDENTIAL AND PROPRIETARY Scholar Rock. Data on File. March

  8. Slide 8: Study Participant Baseline Motor Function

    Study Participant Baseline Motor Function Cohort 1: RHS* Score at Screening Cohorts 2 and 3: HFMSE** at Screening N Mean Std Min Med Max Cohort N Mean Std Min Med Max 15 22.3 8.98 12 19.0 37 RHS Score 23 49.0 11.00 25 49 63 2 19 25.0 9.58 12 22.0 44 3 Cohort 1: 6 Minute Walk at Screening‡ 34 23.8 9.

  9. Slide 9: Preliminary TOPAZ Biomarker Data Provide First Demonstration of Target Engagement in SMA

    Preliminary TOPAZ Biomarker Data Provide First Demonstration of Target Engagement in SMA 9 | CONFIDENTIAL AND PROPRIETARY

  10. Slide 10: SRK-015 Phase 2 Trial (TOPAZ) Timelines

    SRK-015 Phase 2 Trial (TOPAZ) Timelines • All 3 cohorts fully enrolled • Interim analysis: 6-month treatment period • Top-line results: 12-month treatment period • Patients eligible to continue treatment for an additional 12-month extension period • Results from TOPAZ trial may inform future studies

  11. Slide 11: Acknowledgements

    Acknowledgements • Phase 2 trial study investigators, site staff and participants • Medpace • Internal team Members: • Yung Chyung • Ryan Iarrobino • Doreen Barrett • Amy Place • Tiina Xu • Stephanie D’Eon • Mara Sadanowicz • Heather Faulds • Erin Treece • Shaun Cote • Ashish Kalra • Kimberly Long •

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