RESET-MG: A Study to Evaluate the Safety and Efficacy of CABA-201 in Participants With Generalized Myasthenia Gravis

Trial statusRecruiting
Trial phasePhase 1, Phase 2
Trial typeInterventional
Biological sexAll
Age18-70
SponsorCabaletta Bio

About this trial

RESET-MG: A Phase 1/2 Open-Label Study to Evaluate the Safety and Efficacy of CABA-201 in Participants with Generalized Myasthenia Gravis

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Age ≥18 and ≤70 years of age

Diagnosis of MG with generalized muscle weakness meeting criteria as defined by the MGFA class II, III , IVa, and IVb.

Diagnosis of seropositive (autoantibodies AChR, MuSK and/or LRP4) or seronegative MG

Disqualifiers

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.

Trial design

Design model

Single group

Treatments tested in this trial

  • CABA-201

    Biological/Vaccine

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

  • CABA-201

    Biological/Vaccine

    Single intravenous infusion of CABA-201 at escalating dose levels without preconditioning

Treatment groups

24 Participants
are divided into 2 treatment groups
Group A: CABA-201Experimental treatment 1 intervention
Group B: CABA-201, No PreconditioningExperimental treatment 1 intervention

Trial outcomes

Primary outcomes

1

To evaluate incidence and severity of adverse events (AEs)

An AE is any untoward medical occurrence in a patient or clinical study participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal result of an investigation), symptom, or disease (new or exacerbated) temporally associated with the use of study treatment. The term AE is used to include both serious and non-serious AEs.

Time frame
Up to 28 days after CABA-201 infusion

Secondary outcomes

1

To evaluate the incidence and severity of adverse events (AEs)

An AE is any untoward medical occurrence in a patient or clinical study participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal result of an investigation), symptom, or disease (new or exacerbated) temporally associated with the use of study treatment. The term AE is used to include both serious and non-serious AEs.

Time frame
Up to 156 weeks
2

To characterize the pharmacodynamics (PD)

Levels of B cells in the blood

Time frame
Up to 156 weeks
3

To characterize the pharmacokinetics (PK)

Levels of CABA-201-positive T cells in the blood

Time frame
Up to 156 weeks
4

To evaluate disease-related biomarkers

Levels of MG-specific autoantibodies in the serum

Time frame
Up to 156 weeks

Other outcomes

Sponsors and contacts

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