On May 12, 2025, CARsgen announces preliminary clinical data for CT0596, an allogeneic BCMA-targeted CAR-T developed using the THANK-u Plus™ platform. CT0596 is currently being evaluated in an early exploratory clinical study for relapsed/refractory multiple myeloma (R/R MM) or relapsed/refractory plasma cell leukemia (R/R PCL) to assess its safety, and preliminary efficacy.
As of May 6, 2025, 8 patients with R/R MM who had received at least three prior lines of therapy were enrolled and infused with CT0596 following lymphodepletion with the FC regimen (fludarabine 22.5-30 mg/m² and cyclophosphamide 350-500 mg/m²). Key findings from up to four months of follow-up include:
No dose-limiting toxicities (DLTs), ≥Grade 3 cytokine release syndrome (CRS), immune effector cell-associated neurotoxicity syndrome (ICANS), or graft-versus-host disease (GVHD) were reported. The product demonstrated a favorable safety profile, with no patients discontinuing treatment due to adverse events.
1) Among 5 patients who completed the first efficacy assessment at Week 4, 3 patients (60%) achieved stringent complete response/complete response (sCR/CR), and 4 patients (80%) achieved minimal residual disease (MRD)-negativityin the bone marrow. 2) Early efficacy data from 2 patients at Day 14 showed reductions in measurable lesions by ≥92% and ≥65%, respectively. 3) 1 patient had not yet reached the protocol-specified efficacy assessment timepoint.
All sCR/CR patients remained in ongoing responses, including the first patient who completed the four-month follow-up.
Based on the preliminary safety and efficacy data, CT0596 demonstrated favorable tolerability and encouraging efficacy signals in R/R MM patients across all predefined dose levels, with CAR-T expansion observed. These findings warrant further exploration not only in R/R MM, but also in other plasma cell malignancies and autoimmune diseases mediated by autoreactive plasma cells.
At present, there are still many clinical trials of new anti-cancer technologies in China seeking patients. Consultation on new drugs and technologies, you can contact Beijing South Region Oncology Hospital International Department.
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Post time: May-15-2025