Chinese Research Team New Treatment Shows Promise: CD7 CAR-T Cell Therapy for Relapsed/Refractory AML
Chinese Research Team New Treatment Shows Promise: CD7 CAR-T Cell Therapy for Relapsed/Refractory AML
A recent clinical trial has unveiled a new prospect for treating relapsed/refractory acute myeloid leukemia (AML). The study delved into the safety and efficacy of a natural selection CD7 CAR-T cell (NS7 CAR-T cell) in treating CD7+ relapsed/refractory AML patients.
The research involved 10 cases of CD7+ relapsed/refractory AML, where 30% of AML patients expressed CD7. Following treatment with NS7 CAR-T cell infusion, the results showed that within 4 weeks post-infusion, 70% of patients achieved complete bone marrow remission (CR), with 6 patients achieving a deep remission at the level of minimal residual disease (MRD). Notably, the loss of CD7 was identified as a primary reason for non-response in some patients.
The study also indicated that the majority of patients (80%) experienced mild cytokine release syndrome (CRS) post-infusion, with no observed neurotoxicity.
Furthermore, for select patients, continuing with a second allogeneic hematopoietic stem cell transplantation post NS7 CAR-T cell treatment resulted in promising long-term outcomes. However, further exploration is required for patients who did not undergo consolidative transplants to enhance treatment efficacy.
Professor Lu Peihua(Lu Daopei Hospital) remarked that this study highlights the potential of CD7 CAR-T cells as a bridging therapy before transplantation, demonstrating preliminary therapeutic efficacy for relapsed/refractory AML patients. Nevertheless, a comprehensive evaluation of its efficacy requires a larger sample size and longer-term follow-up.
This preliminary study represents a significant advancement in the field of AML treatment, but collaborative efforts and more research are still necessary. Looking ahead, we anticipate further studies and treatment outcomes to bring more beneficial therapeutic options for the long-term survival of patients, supported by a broader patient cohort and collaborative efforts from the medical community.
The outlook for this CD7 CAR-T cell therapy is promising, especially for AML patients who have undergone various treatments and allogeneic hematopoietic stem cell transplants. We look forward to more in-depth research and treatment outcomes in the future, offering more beneficial treatment choices for long-term survival among patients.
(source: ClinicalTrials.gov registration number NCT04938115
Preliminary results published by Professor Lu Peihua and their team in a top-tier journal)
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