RecruitingNot ApplicableNCT07100067

LCAR-F33S in Treatment of Relapsed/Refractory Multiple Myeloma

A Clinical Study to Evaluate the Safety, Tolerance and Efficacy of LCAR- F33S Cell Therapy in Patients With Relapsed/Refractory Multiple Myeloma.


Sponsor

Nanjing Legend Biotech Co.

Enrollment

35 participants

Start Date

Sep 16, 2025

Study Type

INTERVENTIONAL

Conditions

Summary

A prospective, single-arm, open-label dose-exploration and expansion study to evaluate the safety, tolerability, pharmacokinetics, and antitumor efficacy characteristics of LCAR-F33S in patients with relapsed/refractory multiple myeloma(Investigator-initiated Study).


Eligibility

Min Age: 18 Years

Inclusion Criteria9

  • Subjects voluntarily participate in clinical research.
  • Age ≥18 years old.
  • Eastern Cooperative Oncology Group (ECOG) score 0-2.
  • Examination evidence of initial diagnosis of MM according to IMWG diagnostic criteria.
  • Measurable lesions were present.
  • Subjects have received treatment with one PI, one IMiD and a CD38 monoclonal antibody.
  • Subjects have received at least three previous lines of multiple myeloma therapy, each with at least one complete therapy cycle, unless the best response to the therapeutic regimen was documented as disease progression (PD confirmed according to IMWG criteria).
  • Expected survival ≥3 months.
  • Clinical laboratory values in the screening period meet criteria.

Exclusion Criteria7

  • Received previous therapy targeting FcRH5 targets.
  • Subjects had Plasma cell leukemia, Waldenstrom macroglobulinemia, POEMS syndrome, or primary AL amyloidosis at the time of screening.
  • Subjects who were positive for any of HBsAg, HBV DNA, HCV-Ab, HCV RNA, and HIV-Ab;
  • Life-threatening allergic reactions, hypersensitivity reactions, or intolerance to CAR-T cell formulations or their excipients, including DMSO, are known.
  • Serious underlying diseases were present.
  • Female subjects who were pregnant, breastfeeding, or planning to become pregnant while participating in this study or within 1 year of receiving study treatment.
  • Also enrolled in other clinical studies.

Interventions

BIOLOGICALLCAR- F33S cells intravenous infusion

Prior to infusion of the LCAR- F33S cell, Subjects will receive a conditioning premedication regimen consisting of cyclophosphamide and fludarabine.


Locations(4)

Beijing Boren Hospital

Beijing, China

Institute of Hematology & Blood Diseases Hospital

Tianjin, China

Institute of Hematology & Blood Diseases Hospital

Tianjin, China

Wuhan Union Hospital

Wuhan, China

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NCT07100067


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