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Trial · NCT06154252

RESET-Myositis: An Open-Label Study to Evaluate the Safety and Efficacy of CABA-201 in Subjects With Active Idiopathic Inflammatory Myopathy or Juvenile Idiopathic Inflammatory Myopathy

NCT06154252, Phase 2, Phase 3, Recruiting, Cabaletta Bio

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. RESET-Myositis: An Open-Label Study to Evaluate the Safety and Efficacy of CABA-201 in Subjects With Active Idiopathic Inflammatory Myopathy or Juvenile Idiopathic Inflammatory Myopathy. Trials, record NCT06154252. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT06154252

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
RESET-Myositis: An Open-Label Study to Evaluate the Safety and Efficacy of CABA-201 in Subjects With Active Idiopathic Inflammatory Myopathy or Juvenile Idiopathic Inflammatory Myopathy
NCT number
NCT06154252
Status
Recruiting
Phases
Phase 2, Phase 3
Enrollment
74 participants, estimated
Lead sponsor
Cabaletta Bio
Conditions
Idiopathic Inflammatory Myopathy, Dermatomyositis, Anti-Synthetase Syndrome, Immune-Mediated Necrotizing Myopathy, Juvenile Dermatomyositis, Juvenile Polymyositis, Juvenile Idiopathic Inflammatory Myopathy (JIIM), Juvenile Myositis
Interventions
CABA-201 following preconditioning with fludarabine and cyclophosphamide
First posted
2023-12-04
Last updated
2026-10-15

Source ClinicalTrials.gov

Registered outcomes15

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryPhase 1/2: Incidence and severity of adverse events (AEs)Up to 28 days after CABA-201 infusionIncidence and severity of AEs
PrimaryPhase 2b Sub-study 1: Proportion of DM & ASyS subjects achieving at least a moderate Total Improvement Score (TIS) without any immunomodulatory medications and no or low dose of steroidsWithin 16 weeks≥40 on the TIS, a composite measure ranging from 0 to 100, derived from six Core Set Measures, with higher scores indicating greater clinical improvement
PrimaryPhase 2b Sub-study 2: Proportion of subjects with IMNM achieving at least a minimal TIS without any immunomodulatory medications and no or low dose of steroidsWithin 24 weeks≥20 on the TIS, a composite measure ranging from 0 to 100, derived from six Core Set Measures, with higher scores indicating greater clinical improvement
SecondaryIncidence of adverse events and laboratory abnormalitiesUp to 156 weeks (Phase 1/2) and through 52 weeks (Sub-study 1 and 2)Incidence and severity of AEs, including changes in laboratory values and vital signs
SecondaryPharmacodynamics (PD)Up to 156 weeks (Phase 1/2) and through 52 weeks (Sub-study 1 and 2)Levels of B cells in the blood
SecondaryPharmacokinetics (PK)Up to 156 weeks (Phase 1/2) and through 52 weeks (Sub-study 1 and 2)Levels of CABA-201-positive T cells in the blood
SecondaryChange in disease-related biomarkers of muscle inflammationUp to 156 weeks (Phase 1/2)Levels of muscle enzymes (CK, LDH, AST, ALT, and aldolase) in serum
SecondaryChange in autoantibody-related biomarkersUp to 156 weeks (Phase 1/2)Levels of autoantibodies from the Myositis-Specific Autoantibody Panel (e.g., MDA-5, Jo-1, and HMGCR) in the serum
SecondaryProportion of DM subjects achieving at least a moderate TIS without any immunomodulatory medications and no or low dose of steroidsWeek 16 (Sub-study 1)≥40 on the TIS, a composite measure ranging from 0 to 100, derived from six Core Set Measures, with higher scores indicating greater clinical improvement
SecondaryMean change from baseline on the MMT-8 in subjects with DM and ASyS without any immunomodulatory medications and no or low dose of steroidsWeek 16 (Sub-study 1)MMT-8 measures muscle strength on a scale ranging from 0 to 150 points, where higher scores reflect greater muscle strength

Outcomes0

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

None in this release.

Results by group0

Each measurement the trial posted, group by group, in the words and numbers it posted.

None in this release.

Participant flow0

How many started, completed or left each group, period by period.

None in this release.

Adverse events0

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

None in this release.

Adverse event totals0

The totals the trial posted for each group.

None in this release.

Papers1

The papers the trial lists on ClinicalTrials.gov.

PMIDListed as
39245937DERIVED

Source PubMed

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons0

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

None in this release.

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this trial from software.

The record and each of its lists are JSON, twenty rows a page. No key.

GET https://conductscience.org/api/trials/v1/NCT06154252

GET https://conductscience.org/api/trials/v1/NCT06154252/registered