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RESET-SSc: An Open-Label Study to Evaluate the Safety and Efficacy of CABA-201, a CD19-CAR T Cell Therapy, in Subjects With Systemic Sclerosis

A Phase 1/2, Open-Label Study to Evaluate the Safety and Efficacy of Autologous CD19-specific Chimeric Antigen Receptor T Cells (CABA-201) in Subjects With Systemic Sclerosis

Status
Recruiting
Phases
Phase 2Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06328777
Enrollment
37
Registered
2024-03-25
Start date
2024-07-02
Completion date
2029-07-01
Last updated
2026-08-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Interstitial Lung Diseases, Scleroderma, Systemic Sclerosis

Keywords

CABA-201, autoimmune disease, anti-CD19 CAR-T therapy, systemic sclerosis, scleroderma, Interstitial lung disease

Brief summary

RESET-SSc: A Phase 1/2 Open-Label Study to Evaluate the Safety and Efficacy of CABA-201, a CD19-CAR T cell therapy, in Subjects with Systemic Sclerosis

Detailed description

Systemic sclerosis (SSc), also known as scleroderma , is a rare autoimmune disorder characterized by autoantibody production and abnormal B cell function. Though the cause of SSc is not well understood, it is thought to involve B cells that cause the body to attack different tissues in one's own body, causing skin and organ fibrosis. This study is being conducted to evaluate the safety and efficacy of an investigational therapy, CABA-201, a CD19-CAR T cell therapy, that can be given to patients with SSc who have active disease. A single dose of CABA-201 in combination with cyclophosphamide (CY) and fludarabine (FLU) will be evaluated.

Interventions

BIOLOGICALCABA-201

Single intravenous infusion of CABA-201 at a single dose level following preconditioning with fludarabine and cyclophosphamide

Sponsors

Cabaletta Bio
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* Age ≥18 and ≤75 * A clinical diagnosis of SSc, based on the 2013 American College of Rheumatology and European League Against Rheumatism classification criteria. * Early active disease * Evidence of significant skin, pulmonary, or cardiac involvement

Exclusion criteria

* Contraindication to leukapheresis * History of anaphylactic or severe systemic reaction to fludarabine, cyclophosphamide or any of their metabolites * Active infection requiring medical intervention at screening visit * Current symptoms of severe, progressive, or uncontrolled renal, hepatic, hematological, gastrointestinal, pulmonary, psychiatric, cardiac, neurological, or cerebral disease, including severe and uncontrolled infections, such as sepsis and opportunistic infections. * Concomitant medical conditions that, in the opinion of the investigator, might place the subject at unacceptable risk for participation in this study, interfere with the assessment of the effects or safety of the investigational product or with the study procedures * Severe lung or cardiac impairment * Previous CAR T cell therapy * Prior solid organ (heart, liver, kidney, lung) transplant or hematopoietic cell transplant Other protocol-defined inclusion/

Design outcomes

Primary

MeasureTime frameDescription
Phase 1/2: To evaluate incidence of adverse eventsUp to 28 days after CABA-201 infusionIncidence and severity of AEs
Phase 2b Sub-study: To evaluate the efficacy of CABA-201 on % predicted forced vital capacity (FVC) in SSc-ILD subjectsWeek 52Mean change from baseline in % predicted FVC without any immunomodulatory or anti-fibrotic medications and on no or low dose of steroids

Secondary

MeasureTime frameDescription
To evaluate adverse events and laboratory abnormalitiesUp to 156 weeks (Phase 1/2) and through 104 weeks (Sub-study)Incidence and severity of AEs, including changes in laboratory values and vital signs
To characterize the pharmacodynamics (PD)Up to 156 weeks (Phase 1/2) and through 104 weeks (Sub-study)Levels of B cells in the blood
To characterize the pharmacokinetics (PK)Up to 156 weeks (Phase 1/2) and through 104 weeks (Sub-study)Levels of CABA-201-positive T cells in the blood
To evaluate efficacyUp to 156 weeks (Phase 1/2) and at Week 52 (Sub-study)Proportion of subjects achieving revised Composite Response Index for Systemic Sclerosis (CRISS) criteria
Mean change from baseline in Modified Rodnan Skin Score (mRSS)Week 52 (Sub-study)

Countries

United States

Contacts

CONTACTCabaletta Bio
clinicaltrials@cabalettabio.com267 759 3100
STUDY_DIRECTORMedical Director

Cabaletta Bio

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 18, 2026