BCMA CAR-T for Dynamic High-risk Multiple Myeloma

Institute of Hematology & Blood Diseases Hospital, China

Status and phase: Enrolling; Phase 2

Conditions: Multiple Myeloma

Treatments: Biological: anti-BCMA-CAR-T

Study type: Interventional

Funder types: Other

Identifiers

NCT06880393

IIT2024103

Details and patient eligibility

About

This is a single-arm, open-label study to evaluate the efficacy and safety of BCMA CAR-T in dynamic high-risk patients with multiple myeloma

Full description

The study is a prospective, single-arm, single-centre, phase II study designed to evaluate the efficacy and safety of BCMA CAR-T in dynamic high-risk patients with multiple myeloma. Patients received BCMA CAR-T cells infusion after standard FC lymphoma deletion therapy.

Enrollment: 40 estimated patients

Sex: All

Ages: 18 to 75 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

1. Be informed and voluntarily sign the Informed Consent Form (ICF).
2. Age between 18 and 75 years (inclusive).
3. Have measurable disease meeting at least one of the following criteria: Serum M-protein ≥1 g/dL (>10 g/L) as detected by serum protein electrophoresis (SPEP), or quantifiable IgA or IgD levels for IgA or IgD-type myeloma; Urine M-protein ≥200 mg/24 hours; In cases where serum and urine M-protein do not meet the above thresholds, an abnormal free light chain (FLC) ratio (normal range: 0.26 to 1.65) and involved serum FLC ≥100 mg/L.
4. Have received only one line of standard anti-myeloma therapy, including: Induction therapy with at least one proteasome inhibitor, one immunomodulatory agent, and corticosteroids; Sequential autologous hematopoietic stem cell transplantation or consolidation therapy; Maintenance therapy based on either a proteasome inhibitor or an immunomodulatory agent.
5. Meet at least one of the following dynamic high-risk criteria: Early relapse: Disease progression or relapse within 18 months of starting first-line therapy, including progression or relapse within 12 months post-autologous hematopoietic stem cell transplantation; Primary refractory disease: Failure to achieve at least minimal response (MR) after four cycles of induction therapy; Relapse with new genetic abnormalities: Gain(1q), del(17p), or TP53 mutation.
6. Confirmed expression of the BCMA target antigen on MM cells by flow cytometry or bone marrow immunohistochemistry.

Exclusion criteria

1. Primary plasma cell leukemia.
2. Concurrent amyloidosis.
3. Involvement of the central nervous system (CNS).
4. Previous treatment with BCMA-targeted therapy or CAR-T cell therapy.
5. Disease progression or relapse within 3 months of autologous hematopoietic stem cell transplantation.

Trial design

Primary purpose: Treatment

Allocation: N/A

Interventional model: Single Group Assignment

Masking: None (Open label)

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40 participants in 1 patient group

BCMA CAR-T

Experimental group

Description:

Autologous BCMA-directed CAR-T cells, infusion intravenously at a target dose of 2-4 x 10\^6 anti-BCMA CAR+T cells/kg.

Treatment:

Biological: anti-BCMA-CAR-T