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

Cabaletta Bio

Status and phase

Enrolling

Phase 2

Phase 1

Conditions

Lupus Nephritis

Systemic Lupus Erythematosus

Treatments

Biological: CABA-201

Study type

Interventional

Funder types

Industry

Identifiers

NCT06121297

CAB-201-001

Details and patient eligibility

About

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

Full 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.

Enrollment

28 estimated patients

Sex

All

Ages

18 to 65 years old

Volunteers

No Healthy Volunteers

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.

Trial design

Primary purpose

Treatment

Allocation

Non-Randomized

Interventional model

Sequential Assignment

Masking

None (Open label)

28 participants in 2 patient groups

CABA-201 with FLU/CY Preconditioning

Experimental group

Description:

LN Cohort: Infusion of CABA-201 with preconditioning in subjects with LN Non-renal SLE Cohort: Infusion of CABA-201 with preconditioning in subjects with non-renal SLE who do not meet criteria for inclusion in the LN cohort Expansion Cohort: Infusion of CABA-201 with preconditioning in subjects with LN and SLE

Treatment:

Biological: CABA-201

CABA-201, No Preconditioning

Experimental group

Description:

Infusion of CABA-201 with no preconditioning in subjects with LN and non-renal SLE

Treatment:

Biological: CABA-201