Multi-center, Phase 1/2 Study of an Autologous Anti-CD20/BCMA CAR T Cell Therapy (C-CAR168) for the Treatment of Autoimmune Disease Refractory to Standard Therapy

Summary

This multi-center, open-label, Phase 1/2 study aims to evaluate the safety, tolerability, and preliminary efficacy of C-CAR168, an autologous anti-CD20/BCMA CAR-T therapy, in patients with autoimmune diseases refractory to standard treatments. The study includes both dose escalation and dose expansion phases, with participants grouped into condition-specific cohorts. The purpose of this study is to: 1. Test the safety and ability for subjects with autoimmune refractory to standard treatment to tolerate the C-CAR168. 2. Determine the recommended Phase 2 dose of C-CAR168 in subjects with autoimmune disease refractory to standard treatment. Participants will be asked to: * Undergo screening to determine eligibility based on entry criteria. * Taper steroid use before leukapheresis. * Undergo leukapheresis for the manufacturing of C-CAR168. * Temporarily discontinue immunosuppressive therapy at least 7 days prior to leukapheresis. * Receive bridging therapy (steroids) if necessary to maintain disease stability during C-CAR168 manufacturing. * Undergo lymphodepletion therapy with fludarabine and cyclophosphamide. * Receive a single intravenous infusion of C-CAR168 at the assigned dose level on Day 0. * Attend regular safety and efficacy assessments for up to 24 months post-infusion. * Undergo dose-limiting toxicity evaluation during the first 28 days post-infusion (for those in the dose escalation phase). * Follow withdrawal procedures if necessary, including a discharge visit within 14 days if their condition deteriorates, unacceptable toxicity occurs, they no longer meet criteria, or they choose to withdraw.

Eligibility

Age range

18–70 years

Sex

All

Healthy volunteers

No

Interventions

• Biological
  C-CAR168

  This is a multi-center, Phase 1/2, open-label, dose-escalation and dose-expansion study evaluating C-CAR168 for the treatment of autoimmune diseases refractory to standard therapy. A traditional 3+3 design is used to identify the Maximum Tolerated Dose (MTD) and/or Recommended Dose (RD) in disease-specific cohorts.

Location