Larimar Therapeutics, Inc. · NASDAQ:LRMR

Larimar Therapeutics — Investor Presentation (May 2024)

46 slides from Larimar Therapeutics's investor presentation, May 9, 2024

  1. Slide 1: Larimar Therapeutics Corporate Deck

    May 2024 Larimar Therapeutics Corporate Deck Exhibit 99.2

  2. Slide 2: Forward-looking statements

    This presentation contains forward-looking statements that are based on the beliefs and assumptions of Larimar Therapeutics, Inc. ( “Company”) and on information currently available to management. All statements contained in this presentation other than statements of historical fact are forward-look

  3. Slide 3: Positive Topline Phase 2 Data for Nomlabofusp (CTI-1601)

    Positive Topline Phase 2 Data for Nomlabofusp (CTI-1601) Dose-dependent increases in tissue frataxin (FXN) levels in skin and buccal cells Participants treated with 50 mg daily for 14 days and then every other day for an additional 14 days until day 28 Nomlabofusp was generally well-tolerated follow

  4. Slide 4: Clinical-Stage Novel Protein Replacement Therapy Platform

    Clinical-Stage Novel Protein Replacement Therapy Platform Lead candidate nomlabofusp (CTI-1601) is a recombinant fusion protein designed to directly address frataxin deficiency in patients with Friedreich's ataxia (FA) by delivering the protein to mitochondria. Granted Orphan Drug (US & EU), Rare Pe

  5. Slide 5: Larimar Technology is Supported by a Strong IP Portfolio

    2015 2020 2030 2035 2040 2045 2050 2055 2010 2025 Nomlabofusp Composition of Matter and Methods of Treatment US 11,459,363 (Exclusive license from Indiana University) US continuation and foreign applications pending Expiration July 2040 Composition of Matter Patent Larimar Technology is Supported by

  6. Slide 6: Friedreich's Ataxia (FA): A rare and progressive disease

    Friedreich’s Ataxia (FA): A rare and progressive disease 6 * E.C. Deutsch et al. Molecular Genetics and Metabolism 101 (2010) 238–245. Most patients with FA only produce ~20-40% of normal frataxin levels depending on the tissue, sampling technique, and assay considered* Genetic defect on both allele

  7. Slide 7: Nomlabofusp is Designed to Deliver Additional Frataxin

    Nomlabofusp is Designed to Deliver Additional Frataxin The presence of the cleavage site allows the CPP and MTS to be removed by mitochondrial processing peptidase to produce mature human FXN in the mitochondria STRUCTURE OF ENDOGENOUS FXN STRUCTURE OF NOMLABOFUSP Cleavage by mitochondrial processin

  8. Slide 8: FXN Levels Predict Disease Progression in FA

    FXN Levels Predict Disease Progression in FA Lower FXN levels are associated with earlier onset of disease, faster rate of disease progression, and shorter time to loss of ambulation Adapted from H.L.Plasterer et al. PLoS ONE 2013 8(5):e63958 Age of Onset (Years) Median Time to Loss of Ambulation (Y

  9. Slide 9: Phase 2 Dose Exploration Study for 25 and 50 mg Cohorts

    Phase 2 Dose Exploration Study for 25 and 50 mg Cohorts Goal: Further characterize PK/PD and assess safety to inform long-term dose and dose regimen Treatment Schedule - nomlabofusp (CTI-1601) or placebo 28-day Treatment Period 16 17 18 19 15 20 21 22 23 24 25 26 27 28 2 3 4 5 1 6 7 8 9 10 11 12 13

  10. Slide 10: Dose-Dependent Increase in FXN Levels in Skin Cells

    Dose-Dependent Increase in FXN Levels in Skin Cells Skin Cells FXN Levels* Change from Baseline** FXN Levels* in Skin Cells Change from Baseline at Day 14 Participants dosed daily for 14 days, then every other day until day 28 *FXN levels measured via detection of peptide derived from mature FXN; FX

  11. Slide 11: Dose-Dependent Increase in FXN Levels in Buccal Cells

    Dose-Dependent Increase in FXN Levels in Buccal Cells Buccal Cells FXN Levels* Change from Baseline** FXN Levels* in Buccal Cells Change from Baseline at Day 14 Participants dosed daily for 14 days, then every other day until day 28 *FXN levels measured via detection of peptide derived from mature F

  12. Slide 12: Absolute Increases in Skin FXN Levels

    Absolute Increases in Skin FXN Levels Day 14 Skin FXN Levels Dose Visit Absolute Values (pg/µg) Median Mean 25 mg Baseline 3.70 3.38 Day 14 5.53 6.40 Change from Baseline 2.81 3.02 50 mg Baseline 2.12 2.08 Day 14 7.40 7.32 Change from Baseline 5.57 5.24 Dose response in tissue FXN concentrations and

  13. Slide 13: Absolute Increases in Buccal FXN Levels

    Absolute Increases in Buccal FXN Levels Day 14 Buccal FXN Levels Dose Visit Absolute Values (pg/µg) Median Mean 25 mg Baseline 1.78 1.80 Day 14 2.24 2.22 Change from Baseline 0.56 0.42 50 mg Baseline 1.61 1.69 Day 14 2.44 2.38 Change from Baseline 0.72 0.69 Dose response in tissue FXN concentrations

  14. Slide 14: Skin Cell FXN Levels Achieve Higher % of Healthy Volunteers

    Skin Cell FXN Levels Achieve Higher % of Healthy Volunteers* Following 14 days of Daily Nomlabofusp Only participants with quantifiable levels at baseline and day 14 are included in the figures. *% of healthy volunteer FXN level is calculated by dividing each participant's FXN level by the average F

  15. Slide 15: Buccal Cell FXN Levels Achieve Higher % of Healthy Volunteers

    Buccal Cell FXN Levels Achieve Higher % of Healthy Volunteers* Following 14 days of Daily Nomlabofusp Only participants with quantifiable levels at baseline and day 14 are included in the figures. *% of healthy volunteer FXN level is calculated by dividing each participant's FXN level by the average

  16. Slide 16: Increasing FXN Levels May Slow Disease Progression

    Increasing FXN Levels May Slow Disease Progression *FARS: Friedreich’s ataxia rating scale, measures disease progression with a higher score indicating a greater level of disability. **FXN levels measured in peripheral blood mononuclear cells (PBMCs). FXN levels as measured by % of normal demonstrat

  17. Slide 17: Nomlabofusp: Predictable Pharmacokinetics

    Nomlabofusp: Predictable Pharmacokinetics Quick absorption after subcutaneous administration 1 2 3 Dose-proportional increases in exposure observed cc Pharmacokinetic profile consistent with Phase 1 studies

  18. Slide 18: Ph1 & Ph2 Data: Nomlabofusp is Generally Well Tolerated

    Ph1 & Ph2 Data: Nomlabofusp is Generally Well Tolerated 44 of 46 clinical trial participants dosed with nomlabofusp completed their respective study One Phase 2 participant in the 25 mg cohort withdrew due to allergic reaction that resolved with standard treatment One Phase 1 participant in the 50 m

  19. Slide 19: Open-label Extension Study

    Open-label Extension Study: Dosed first patient in Q1 2024 Preliminary interim data expected in Q4 2024 Key Eligibility Criteria Previous participation in Phase 1 or Phase 2 trials Key Study Objectives Safety and tolerability Long-term PK Tissue FXN concentrations and potential use as surrogate endp

  20. Slide 20: Nomlabofusp Clinical Development Plan

    Nomlabofusp Clinical Development Plan Planned global double-blind placebo-controlled registration/confirmatory study** Plan to include pediatric patients 2 to 17 years of age in clinical development* Intend to pursue accelerated approval pathway with potential BLA submission targeted for 2H 2025 *Co

  21. Slide 21: Nomlabofusp is a Competitively Differentiated Treatment Approach

    Nomlabofusp is a Competitively Differentiated Treatment Approach* *Competitive landscape focuses on clinical-stage, industry-sponsored programs from public companies Acquisition supports the robust market potential for FA treatments Nomlabofusp is a potential first-and-only protein replacement thera

  22. Slide 22: Regulatory Updates and 2024/2025 Milestones

    Regulatory Updates Q1 2024: Dosed first patient in OLE study Q4 2024: Initerim data from OLE study 2H 2024: Final Phase 2 data planned to be presented at a conference 2H 2025: BLA submission 2024/2025 Milestones Consistent Ph 1 and Ph 2 Findings Initiated discussions with FDA regarding use of FXN as

  23. Slide 23: Clinical-Stage Novel Protein Replacement Therapy Platform

    Clinical-Stage Novel Protein Replacement Therapy Platform Lead candidate nomlabofusp (CTI-1601) is a recombinant fusion protein designed to directly address frataxin deficiency in patients with Friedreich's ataxia (FA) by delivering the protein to mitochondria. Granted Orphan Drug (US & EU), Rare Pe

  24. Slide 24: Thank You

    THANK YOU Larimar Therapeutics May 2024 Corporate Deck

  25. Slide 25: Appendix

    Appendix Larimar Therapeutics

  26. Slide 26: Scientific Advisory Board

    Scientific Advisory Board Co-founder of Chondrial Therapeutics, which became Larimar Therapeutics, Inc. Professor of Pediatrics at Indiana University School of Medicine Mark Payne, MD Executive Director of the Mitochondrial Medicine Frontier Program at The Children’s Hospital of Philadelphia (CHOP)

  27. Slide 27: Strong Relationship with FARA

    Company has strong relationship with Friedreich’s Ataxia Research Alliance (FARA) National, non-profit organization dedicated to the pursuit of scientific research leading to treatments and a cure for FA FARA provides industry with several key items Assistance with patient recruitment and education

  28. Slide 28: Mitochondrial Localization and Preclinical Data

    Mitochondrial Localization and Preclinical Data

  29. Slide 29: Nomlabofusp Transduction of Cells In Vitro Leads to hFXN Located in Mitochondria

    Nomlabofusp Transduction of Cells In Vitro Leads to hFXN Located in Mitochondria FXN DAPI TOMM20 DAPI FXN TOMM20 DAPI FXN co-localizes with TOMM20 FXN staining TOMM20 (mitochondria) staining Rat cardiomyocytes (H9C2) were transduced with nomlabofusp Cells were fixed and analyzed by immunofluorescenc

  30. Slide 30: Nomlabofusp Extends Survival in FXN-deficient KO Mice

    Nomlabofusp Extends Survival in FXN-deficient KO Mice Median survival of MCK-Cre FXN-KO mice 166 days (nomlabofusp) vs. 98 days (Vehicle) Nomlabofusp administered 10 mg/kg SC every other day Survival beyond vehicle mean (107.5 days) 87.5% (nomlabofusp) vs. 33% (Vehicle) Demonstrates that nomlabofusp

  31. Slide 31: Nomlabofusp Prevents Development of Ataxic Gait in Neurologic KO Mouse Model

    Nomlabofusp Prevents Development of Ataxic Gait in Neurologic KO Mouse Model hFXN replacement with nomlabofusp prevents development of ataxic gait Nomlabofusp-treated mice survive longer than untreated mice Human frataxin present in brain, dorsal root ganglia and spinal cord demonstrating central ne

  32. Slide 32: Nomlabofusp Delivers hFXN to Mitochondria and Restores SDH Activity

    Nomlabofusp Delivers hFXN to Mitochondria and Restores SDH Activity in KO Mice Mitochondria hFXN concentration increases dose-dependently Given subcutaneously, nomlabofusp functionally replaces hFXN in mitochondria of KO mice MPK = mg/kg MPK = mg/kg Mitochondrial FXN (Heart) SDH Activity (Muscle) Su

  33. Slide 33: Nomlabofusp Prevents Left Ventricle Dilation in KO Mice

    Nomlabofusp Prevents Left Ventricle Dilation in KO Mice Left ventricular (LV) volume increases in systole in untreated mice by 8 weeks (after 4 weeks of dosing with vehicle), but remains similar to wildtype when treated with nomlabofusp (10 mg/kg every other day) Diameter (mm) Age in Weeks Age in We

  34. Slide 34: Nomlabofusp Preserves Left Ventricle Function in KO Mice

    Nomlabofusp Preserves Left Ventricle Function in KO Mice Percent Change Age in Weeks Left Ventricle Ejection Function Left Ventricle Fractional Shortening Percent Change Age in Weeks KO: CTI-1601 Wild-type: Vehicle KO: Vehicle Study Design – Cardiac and skeletal muscle FXN knockout mice (MCK-CRE) we

  35. Slide 35: Phase 1 Clinical Data

    Phase 1 Clinical Data O\.

  36. Slide 36: CTI-1601: Phase 1 Clinical Program in Patients with FA

    CTI-1601: Phase 1 Clinical Program in Patients with FA Phase 1 Development Plan Two double-blind, placebo-controlled dosing trials in patients with FA Patient dosing began December 2019 Safety Review Committee assessed all blinded data between each cohort to ensure patient safety Number of subjects:

  37. Slide 37: Completed Phase 1 Multiple Ascending Dose Study

    Completed Phase 1 Multiple Ascending Dose Study Treatment Schedules for Each Cohort- nomlabofusp (CTI-1601) or placebo 13-day Treatment Period Cohort 2 (50 mg; n = 9) 2 3 4 5 1 6 7 8 9 10 11 12 13 14 = Administration of nomlabofusp or placebo = No Administration 13-day Treatment Period Cohort 1 (25

  38. Slide 38: Dose Dependent Increases in FXN Levels Observed in Skin and Buccal Cells in Phase 1

    Dose Dependent Increases in FXN Levels Observed in Skin and Buccal Cells in Phase 1 *FXN levels measured via detection of peptide derived from mature FXN; FXN concentrations are normalized to total cellular protein content in each sample; Data represent median and 25th and 75th percentiles; FXN leve

  39. Slide 39: MAD Trial Patient Demographics

    MAD Trial Patient Demographics Parameter Statistic All placebo (n=7) 25 mg CTI-1601 (n=6) 50 mg CTI-1601 (n=7) 100 mg CTI-1601 (n=7) All CTI-1601 (n=20) Overall (n=27) Sex Male n (%) 5 (71.4) 3 ( 50.0) 4 ( 57.1) 3 ( 42.9) 10 ( 50.0) 15 (55.6) Female n (%) 2 (28.6) 3 ( 50.0) 3 ( 42.9) 4 ( 57.1) 10 (

  40. Slide 40: MAD Trial Patient Disease Characteristics

    MAD Trial Patient Disease Characteristics Parameter Statistic All placebo (n=7) 25 mg CTI-1601 (n=6) 50 mg CTI-1601 (n=7) 100 mg CTI-1601 (n=7) All CTI-1601 (n=20) Overall (n=27) Age at Symptom Onset Mean 14.1 24.0 19.3 11.9 18.1 17.1 SD 5.34 14.48 6.21 6.72 10.37 9.39 Median 15.0 18.0 19.0 10.0 18.

  41. Slide 41: Summary of MAD Trial PK Analyses

    Summary of MAD Trial PK Analyses CTI-1601 was quickly absorbed after subcutaneous administration Dose-proportional increases in exposure observed with increasing doses of CTI-1601 Mean half life of CTI-1601 in plasma was approximately 11 hours CTI-1601 appeared to be at or close to steady state expo

  42. Slide 42: Phase 2 Demographic/Disease Characteristics Data

    Phase 2 Demographic/ Disease Characteristics Data

  43. Slide 43: Demographics – Phase 2 Trial

    Demographics – Phase 2 Trial 25 mg Cohort 50 mg Cohort Placebo N = 4 Nomlabofusp N = 9 Overall N = 13 Placebo N = 5 Nomlabofusp N = 10 Overall N = 15 Age at Screening (Years) Mean (SD) 34.0 (9.20) 37.8 (14.93) 36.6 (13.16) 28.6 (4.67) 28.1 (11.00) 28.3 (9.17) Median 33 31 31 27 24 26 Q1, Q3 27, 42 2

  44. Slide 44: Disease Characteristics – Phase 2 Study

    Disease Characteristics – Phase 2 Study 25 mg Cohort 50 mg Cohort Placebo N = 4 Nomlabofusp N = 9 Overall N = 13 Placebo N = 5 Nomlabofusp N = 10 Overall N = 15 Age at Symptom Onset (Years) Mean (SD) 14.5 (4.93) 13.0 (10.47) 13.5 (8.77) 15.2 (7.26) 13.7 (8.37) 14.2 (7.78) Median 14.5 10 11 14 12.5 1

  45. Slide 45: Non-Interventional Study Data

    Non-Interventional Study Data

  46. Slide 46: CLIN-1601-002: Top-line Non-interventional Study Results

    CLIN-1601-002: Top-line Non-interventional Study Results Non-interventional study measured FXN in homozygous healthy volunteers FXN concentrations were measured in skin and buccal cells from 60 homozygous healthy volunteers utilizing the same sampling technique and assay as clinical trials of nomlab

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