Cabaletta Bio, Inc. · NASDAQ:CABA

Cabaletta Bio — Investor Presentation (March 2026)

48 slides from Cabaletta Bio's investor presentation, Mar 23, 2026

  1. Slide 1: Corporate Presentation March 2026

    Corporate Presentation March 2026 Exhibit 99.2

  2. Slide 2: Disclaimer

    Disclaimer This presentation, including any printed or electronic copy of these slides, the talks given by the presenters, the information communicated during any delivery of the presentation and any question and answer session and any document distributed at or in connection with the presentation (

  3. Slide 3: Develop and launch the first curative targeted cellular therapies for autoimmune diseases

    Develop and launch the first curative targeted cellular therapies for patients with autoimmune diseases

  4. Slide 4: Rese-cel: Delivering on the promise of CD19-CAR T in autoimmunity

    Pivotal myositis study enrolling; automated manufacturing & new clinical data with no preconditioning in 2026 Rese-cel1: Delivering on the promise of CD19-CAR T in autoimmunity BLA – biologics license application; f/u – follow-up; PV – pemphigus vulgaris; SLE – systemic lupus erythematosus; TIS – to

  5. Slide 5: Removing PC should expand access while automated manufacturing should reduce COGS

    Removing PC should expand access while automated manufacturing should reduce COGS & increase scale Transformative value proposition with PC elimination & automation Initial clinical data without PC from the first SLE cohort and initial clinical experience with rese-cel manufactured by Cellares Trans

  6. Slide 6: SLE registrational design in hand; SSc and MG designs anticipated

    SLE registrational design in hand; SSc pivotal design anticipated 1H26 and MG anticipated mid-2026 Innovative clinical strategy to support accelerated regulatory path Program Trial Preclinical Phase 1/2 Registrational Rese-cel (CABA-201) 4-1BB CD19-CAR T RESET-Myositis® CARTA Chimeric Antigen Recept

  7. Slide 7: Rese-cel: Clinical Profile and Commercial Opportunity

    Rese-cel: Clinical Profile and Commercial Opportunity

  8. Slide 8: Broad portfolio of trials designed to address high unmet need

    Broad portfolio of trials designed to address high unmet need and realize the potential of rese-cel RESET™ program advancing trials in a broad portfolio of diseases SLE – Systemic lupus erythematosus; DM – Dermatomyositis; SSc – Systemic sclerosis; gMG – Generalized myasthenia gravis; PC – Precondit

  9. Slide 9: Rese-cel: CD19-CAR T specifically designed for autoimmunity

    Rese-cel binder with similar in vitro & in vivo activity to construct used in academic studies in autoimmunity1,3 Rese-cel: CD19-CAR T specifically designed for autoimmunity Peng BJ, et al. Mol Ther Methods Clin Dev. 2024;32(2):101267. Dai, Zhenyu, et al. "Development and functional characterization

  10. Slide 10: Many RESET trials share common elements of preconditioning, dose, and design

    Many of the RESET trials share common elements of preconditioning, dose, and study design RESETTM clinical trials have consistent design principles1 †Follow up period encompasses at least 15 years in total, ed to regulatory guidance for CAR T cell therapies. AE, adverse event; CABA, Cabaletta Approa

  11. Slide 11: Peak rese-cel expansion and transient B cell depletion within ~2 weeks

    Peak rese-cel expansion and transient peripheral B cell depletion occurred within ~2 weeks post infusion​​ Rese-cel expansion & B cell kinetics across indications* *All data is as of 11 Sep, 2025, except DM-3 which includes Week 24 data as of 08 Oct 2025. **LN-1 had prolonged rese-cel detection due

  12. Slide 12: 95% of patients with no CRS or Grade 1 CRS and 95% with no ICANS

    Across 4 RESET™ studies, 95% of patients with no CRS or Grade 1 CRS (fever) and 95% with no ICANS1 Demographics & CRS/ICANS in 1st 40 rese-cel patients by indication RESET-Myositis RESET-SLE RESET-SSc RESET-MG Number of patients 15 10 9 6 Age, years, mean (SD) 51.7 (14.6) 30.4 (7.6) 53.1 (12.3) 57.5

  13. Slide 13: Safety profile permits outpatient administration and favorable reimbursement

    Rese-cel safety profile permits outpatient administration which can facilitate favorable reimbursement CAR T may eliminate active disease & use of expensive medications Cancer patients experience early and frequent CRS/ICANS following CAR T therapy, which increases inpatient admissions and shifts Me

  14. Slide 14: Outpatient administration improves patient and provider accessibility

    Outpatient administration reduces administrative burden and improves patient and provider accessibility RESET™ program designed for outpatient administration at launch INPATIENT MODEL OUTPATIENT MODEL Limited patient beds and resource infrastructure Increases inpatient resource pressure: ↑ total cos

  15. Slide 15: Patient health status improves manufacturing cost efficiency

    Health status of patient population and slower disease progression improve manufacturing cost efficiency Rese-cel commercial model – manufacturing and COGM Late-stage oncology patients have high drop-off rate due to rapid disease progression and compromised T cell fitness, leading to higher manufact

  16. Slide 16: Myositis: Unmet Need & Clinical Data

    Myositis: Unmet Need & Clinical Data

  17. Slide 17: Myositis: High rates of disability and increased risk of mortality

    Highly concentrated treatment network in the US; dermatomyositis represents ~75% of this market Myositis: High rates of disability & increased risk of mortality High disease burden: disability & mortality Typical patient is a middle-aged female who experiences muscle weakness, fatigue, pain, shortne

  18. Slide 18: Myositis: Limited treatment options for ~80k U.S. patients

    IVIg is the only approved therapy (only for patients with the adult dermatomyositis subtype) Myositis: Limited treatment option​s for ~80k U.S. patients Lundberg, Ingrid E., et al. "Idiopathic inflammatory myopathies." Nature Reviews Disease Primers 7.1 (2021): 86.​ Analysis from quantitative survey

  19. Slide 19: Myositis registrational cohort – key design elements

    Single-arm cohort including DM/ASyS patients with a primary endpoint at 16 weeks Myositis registrational cohort – Key design elements Registrational Cohort2 ASyS DM & ASyS (n=17) Initial Phase 1/2 Cohorts1 DM (combined n ~6) TIS, total improvement score. Pediatric submission based on data available

  20. Slide 20: Baseline characteristics: first 13 patients in RESET-Myositis

    All patients had active, refractory disease despite multiple immunomodulatory agents, including IVIg Baseline characteristics: First 13 patients in RESET-Myositis* *As of 11 Sep, 2025. †Baseline disease activity = activity before preconditioning. ‡Reflects any exposure to RTX and IVIg prior or at ti

  21. Slide 21: DM: Efficacy data following rese-cel infusion

    3 of 3 patients with DM with sufficient follow-up achieved major TIS responses at Week 16 DM: Efficacy data following rese-cel infusion* *As of 11 Sep, 2025. † Historical NXP-2 autoantibody, but none detected at Pre-preconditioning (Baseline) visit). ‡ At latest follow-up (Day 29). § Insufficient fo

  22. Slide 22: ASyS: Efficacy data following rese-cel infusion

    Patient who would meet key inclusion criteria in registrational cohort achieved a major TIS response at Week 16 ASyS: Efficacy data following rese-cel infusion* *As of 11 Sep, 2025. †Reflects trend from baseline to latest timepoint antibody results are available (Week 24 for both patients). In ASyS-

  23. Slide 23: Rese-cel Manufacturing Strategy & Innovation

    Rese-cel Manufacturing Strategy & Innovation

  24. Slide 24: Rese-cel commercial process preliminary comparability established

    Rese-cel commercial process preliminary comparability established T cell collection Rese-cel manufacture (9 day) Rese-cel administration apheresis cell selection and activation cell expansion cell harvest preconditioning infusion Product release QC testing and QA release Reliable process with >90% m

  25. Slide 25: Advancing breakthrough innovations to improve scalability and costs

    Automation and elimination of preconditioning and apheresis could enhance patient experience Advancing breakthrough innovations to improve scalability and costs Stratton et al, ESGCT 2024. Poster available at https://www.cabalettabio.com/technology/posters-publications (https://d1io3yog0oux5.cloudfr

  26. Slide 26: Three successful engineering runs led to IND amendment clearance

    Three successful engineering runs3 completed in 2025 led to IND amendment (INDa) clearance Rese-cel engineering runs with Cellares supported INDa clearance Note: Shaded areas represent historical ranges defined by tolerance intervals that covers 90% of the population with 95% confidence. Cellares us

  27. Slide 27: Rese-cel – Initial Dose Data without Preconditioning

    Rese-cel – Initial Dose Data without Preconditioning

  28. Slide 28: Evidence of biologic and clinical activity in all three PV patients

    Clear evidence of biologic and clinical activity in all three PV patients in the initial dose cohort PDAI improvements were present in all three and were compelling in two of the three patients All patients remain off all immunomodulators while GCs are being tapered from low doses Peripheral B cell

  29. Slide 29: Similar rese-cel expansion and B cell depletion with and without PC

    Similar magnitude of rese-cel expansion & B cell depletion kinetics in patients treated with and without PC Similar PK & B cell depletion in rese-cel treated patients without PC* *As of 11 September 2025. Gray vertical dotted line indicates day of rese-cel infusion (study visit Day 1). Gray shading

  30. Slide 30: Near complete resolution of symptoms in 2 of 3 patients

    Near complete resolution of clinical symptoms and rapid reduction in autoantibodies in 2 of 3 patients Early clinical activity of rese-cel without preconditioning* *As of 11 September 2025. Cabaletta Bio: Data on file. Disease severity intervals as defined Krain RL, et al. Br J Dermatol. 2021;184(5)

  31. Slide 31: Lupus: Unmet Need & Clinical Data

    Lupus: Unmet Need & Clinical Data

  32. Slide 32: Increased mortality risk and negative impact on quality of life in SLE and LN

    Increased mortality risk & negative impact on quality of life for patients with SLE & LN SLE & LN: Represent a high unmet clinical need ESRD, end-stage renal disease; LN, lupus nephritis; SLE, systemic lupus erythematosus. 1. Zen M, et al. Eur J Intern Med. 2023;112:45–51. 2. Rahman P, et al. Lupus.

  33. Slide 33: Baseline characteristics: first 9 patients in RESET-SLE

    All patients had active, refractory disease and had failed multiple B cell-targeted therapies Baseline characteristics: First 9 patients in RESET-SLE* *As of 11 Sep, 2025. †Baseline disease activity = activity before preconditioning. ‡SLE medications may include biologics, anti-malarials, and immuno

  34. Slide 34: Improvements in SLEDAI-2K and reduction in anti-dsDNA antibodies

    Improvements in SLEDAI-2K over time and significant reduction in anti-dsDNA antibodies after discontinuing immunomodulators Efficacy data following rese-cel infusion* *As of 11 Sep, 2025. †Week 20 urinalysis components of the SLEDAI-2K (WBC, RBC and casts) imputed from Week 16 for total SLEDAI-2K sc

  35. Slide 35: Systemic Sclerosis: Unmet Need & Clinical Data

    Systemic Sclerosis: Unmet Need & Clinical Data

  36. Slide 36: Systemic sclerosis: Profound unmet need and limited options

    Associated with progressive morbidity and high mortality1,2 Systemic sclerosis: Profound unmet need & limited options AHSCT, autologous hematopoietic stem cell transplantation; ILD, interstitial lung disease; SSc, systemic sclerosis. 1. Allanore Y, et al. Nat Rev Dis Primers. 2015;1:15002. 2. Denton

  37. Slide 37: Baseline characteristics: first 6 patients in RESET-SSc

    All patients had active, refractory disease and were on 1 to 3 disease-specific therapies at screening Baseline characteristics: First 6 Patients in RESET-SSc* *As of 11 Sep, 2025; primary endpoint is incidence and severity of adverse events through Day 29 †Baseline disease activity = activity befor

  38. Slide 38: SSc: Efficacy data following rese-cel infusion

    As of the data cut-off, 4 of 4 SSc patients with ≥12 weeks follow-up had FVC stabilization or improvement SSc: Efficacy data following rese-cel infusion* *As of 11 Sep, 2025; primary endpoint is incidence and severity of adverse events through Day 29. †Reflects trend from baseline to latest availabl

  39. Slide 39: Myasthenia Gravis: Unmet Need & Clinical Data

    Myasthenia Gravis: Unmet Need & Clinical Data

  40. Slide 40: Myasthenia gravis: Significant disease and treatment burden

    High impact of disease due to patient symptoms & cost burden, particularly for refractory patients Myasthenia gravis: Significant disease & treatment burden Gilhus NE, et al. Eur J Neurol. 2024 2. Dresser L, et al. J Clin Med. May 2021. 3. Results from quantitative survey of U.S. MG-treating physici

  41. Slide 41: Baseline characteristics: first patients in RESET-MG

    Baseline characteristics: First 4 patients in RESET-MG* *As of 11 Sep, 2025. †Baseline disease activity = activity before preconditioning. ‡ Serognegative = no anti-AChR, anti-MuSK and anti-LRP4 antibodies AChR, acetylcholine receptor; AZA, azathioprine; ECU, eculizumab; EFG, efgartigimod; GC, gluco

  42. Slide 42: MG: Efficacy data following rese-cel infusion

    As of latest follow-up, both evaluable patients showed improvement off immunomodulators and steroids MG: Efficacy data following rese-cel infusion* *As of 11 Sep. 2025. †AChR-pos-1, Day 29 visit data unavailable. In AChR-pos-1, azathioprine, a prohibited medication, was continued until the day of in

  43. Slide 43: Corporate Summary

    Corporate Summary Cabaletta Bio’

  44. Slide 44: Cabaletta Bio leadership

    Track record of operational success evaluating & developing novel cell therapy candidates in autoimmunity Cabaletta Bio leadership LEADERSHIP TEAM Anup Marda Chief Financial Officer Nicolette Sherman Chief HR Officer Michael Gerard General Counsel Steven Nichtberger, M.D. President, CEO & Chairman H

  45. Slide 45: Removing PC should expand access while automated manufacturing should reduce COGS

    Removing PC should expand access while automated manufacturing should reduce COGS & increase scale Transformative value proposition with PC elimination & automation Initial clinical data without PC from the first SLE cohort and initial clinical experience with rese-cel manufactured by Cellares Trans

  46. Slide 46: Appendix

    Appendix Cabaletta Bio’

  47. Slide 47: TIS is a composite tool measuring improvement from baseline

    TIS is a composite tool measuring a patient’s relative improvement from their baseline Myositis outcomes captured through validated composite endpoint Major Total Improvement Score 100 80 0 Minimal Moderate 60 40 20 Week 24 Baseline Week 12 None Extramuscular Activity 20 max achievable score Manual

  48. Slide 48: Corporate Presentation March 2026

    Corporate Presentation March 2026

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