Descartes-08 in Autoantibody Myositis

Trial statusRecruiting
Trial phasePhase 2
Trial typeInterventional
Biological sexAll
Age18+
SponsorCartesian Therapeutics

About this trial

This is a randomized, double-blind, placebo-controlled phase 2 study to evaluate the efficacy, safety and tolerability of an autologous T-cells expressing a chimeric antigen receptor (CAR) directed to B-Cell maturation antigen (BCMA) in patients with autoantibody-mediated myositis, including antisynthetase syndrome (ASyS) and dermatomyositis (DM).

Eligibility criteria

Qualifiers

Participants must have dermatomyositis or antisynthetase syndrome with muscle and/or skin involvement.

Refractory or intolerance to standard therapy.

Stable background immunosuppressive therapy for ≥8 weeks.

Adequate hematologic, renal, hepatic, and pulmonary function (SpO₂ ≥92% on room air).

Disqualifiers

Isolated interstitial lung disease (ILD) without muscle or skin involvement

Severe irreversible muscle damage or advanced weakness (e.g., wheelchair-bound).

Interstitial lung disease (ILD) requiring oxygen, severe pulmonary impairment (FVC ≤45%, DLCO ≤40%), or pulmonary hypertension.

Other inflammatory myopathies (PM, IMNM, IBM, cancer- or drug-induced myositis, overlap myositis except Sjögren's).

Trial design

Treatments tested in this trial

  • Descartes-08
  • Placebo

Treatment groups

60 Participants
are divided into 2 treatment groups

Sponsors and collaborators