This is a prospective study of anti-BCMA CAR-T in transplant-ineligible patients with newly diagnosed multiple myeloma.
After the diagnosis of multiple myeloma (MM), patients were stratified by frailty status. Frail patients received 4 cycles of VRd regimen (bortezomib, lenalidomide, and dexamethasone), while non-frail patients received 4 cycles of DVRd regimen (daratumumab, bortezomib, lenalidomide, and dexamethasone). Following induction therapy, peripheral blood lymphocytes were collected to manufacture anti-BCMA CAR-T cells. After lymphodepletion with the FC regimen (fludarabine and cyclophosphamide), patients received a single infusion of anti-BCMA CAR-T cells at a target dose of 2.0 × 10\^6 CAR-positive cells per kilogram of body weight. Peripheral blood samples were collected at regular intervals to assess treatment efficacy, safety, and CAR-T cell expansion and persistence. Patients were closely monitored for 6 months post-infusion. Thereafter, disease assessments, physical examinations, and hematologic tests were conducted every 3 months for a total follow-up duration of 2 years.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
35
The T cells are genetically modified to express a chimeric antigen receptor targeting BCMA and are infused after induction therapy at a target dose of ≥2.0×10\^6 cells/kg
Progression-Free Survival (PFS)
Progression-Free Survival (PFS) is defined as the time from the date of CAR-T cell infusion to the date of disease progression or death from any cause, whichever occurs first. Disease progression will be determined based on the International Myeloma Working Group (IMWG) criteria. Patients who have not progressed or died will be censored at the date of last follow-up.
Time frame: Up to 36 months after CAR-T infusion
Overall Survival (OS)
Overall Survival (OS) is defined as the time from the date of CAR-T cell infusion to death from any cause. Patients who are alive at the time of analysis will be censored at their last known date of follow-up.
Time frame: Up to 36 months after CAR-T infusion
Objective Response Rate (ORR)
Objective Response Rate (ORR) is defined as the proportion of patients achieving a response of partial response (PR) or better, including PR, very good partial response (VGPR), complete response (CR), and stringent complete response (sCR), according to the International Myeloma Working Group (IMWG) criteria. The assessment will be based on laboratory parameters, imaging, and bone marrow evaluation, as applicable
Time frame: Up to 36 months after CAR-T infusion
MRD
The proportion and immunophenotype of plasma cells in bone marrow were analyzed using flow cytometry, with a sensitivity of 10\^-5.
Time frame: Up to 36 months after CAR-T infusion
Adverse Events (AE)
Focus on adverse events related to ASCT and CAR-T, including CRS, ICANS, coagulation disorders, infections, and other complications。
Time frame: Up to 36 months after CAR-T infusion
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