Skip to content

RESET-SLE: A Phase 1/2 Open-Label Study to Evaluate the Safety and Efficacy of CABA-201 in Subjects With Active Systemic Lupus Erythematosus

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 Active Systemic Lupus Erythematosus

Status
Recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06121297
Enrollment
28
Registered
2023-11-07
Start date
2024-02-16
Completion date
2029-12-01
Last updated
2026-08-26

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

Conditions

Lupus Nephritis, Systemic Lupus Erythematosus

Keywords

CABA-201, Autoimmune Disease, Anti-CD19 CAR-T therapy, Cellular Therapy, Systemic Lupus Erythematosus, Lupus Nephritis

Brief summary

RESET-SLE: A Phase 1/2 Open-Label Study to Evaluate the Safety and Efficacy of CABA-201 in Subjects With Active Systemic Lupus Erythematosus

Detailed description

Systemic lupus erythematosus (SLE) is a chronic autoimmune disorder characterized by autoantibody production and abnormal B cell function. SLE presents with fluctuating severity and may cause tissue damage in a variety of organs over time. Lupus nephritis (LN) (renal involvement) is a common severe manifestation of SLE, which can lead to significant morbidity and mortality. This study is being conducted to evaluate the safety and efficacy of an investigational cell therapy, CABA-201, also called resecabtagene autoleucel, or "rese-cel". Rese-cel can be given to patients with either LN or SLE without renal involvement, in two separate parallel cohorts, who have active disease. Initially a single dose of CABA-201 in patients pretreated with a standard regimen including cyclophosphamide (CY) and fludarabine (FLU), will be evaluated. In addition, escalating doses of CABA-201 will be evaluated in patients without CY and FLU pretreatment.

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
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* Age ≥18 and ≤65 * A clinical diagnosis of SLE, based on the 2019 European League Against Rheumatism (EULAR)/American College of Rheumatology (ACR) classification criteria for adult SLE. * Positive antinuclear antibody (ANA) titer or anti-dsDNA antibody at screening. * For LN subjects only, active, biopsy-proven LN class III or IV, with or without the presence of class V, according to 2018 Revised International Society of Nephrology/Renal Pathology Society (ISN/RPS) criteria * For non-renal SLE subjects only: Active, moderate to severe SLE

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 * 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 * For LN subjects only: The presence of kidney disease other than active lupus nephritis * Previous CAR T cell therapy * Prior solid organ (heart, liver, kidney, lung) transplant or hematopoietic cell transplant.

Design outcomes

Primary

MeasureTime frame
To evaluate incidence of adverse eventsUp to 28 days after CABA-201 infusion

Secondary

MeasureTime frameDescription
To evaluate adverse events and laboratory abnormalitiesUp to 156 weeksIncidence and severity of AEs, including changes in laboratory values and vital signs
To characterize the pharmacodynamics (PD)Up to 156 weeksLevels of B cells in the blood
To characterize the pharmacokinetics (PK)Up to 156 weeksLevels of CABA-201-positive T cells in the blood
To evaluate disease related biomarkersUp to 156 weeksLevels of C3, C4, and CH50 in serum
To evaluate efficacyUp to 156 WeeksComplete renal response rates (in subjects with LN)

Countries

Canada, Spain, United States

Contacts

CONTACTCabaletta Bio
clinicaltrials@cabalettabio.com267 759 3100
STUDY_CHAIRMedical Director

Cabaletta Bio

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 27, 2026