IL-15-Armored CAR-T Therapy in Relapsed or Refractory Multiple Myeloma and Plasma Cell Leukemia

Trial statusRecruiting
Trial phasePhase 2
Trial typeInterventional
Biological sexAll
Age18-80
SponsorThe First Hospital of Jilin University

About this trial

This is an open-label, single-arm, Phase 2 study to evaluate the efficacy and safety of IL-15-armored chimeric antigen receptor T-cell (CAR-T) therapy in subjects with relapsed or refractory multiple myeloma and plasma cell leukemia.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Able and willing to provide written informed consent and comply with the scheduled visits, study treatment, laboratory assessments, and other study procedures.

Clinically diagnosed relapsed or refractory multiple myeloma or plasma cell leukemia (PCL). Patients with persistent minimal residual disease (MRD) positivity or conversion from MRD-negative to MRD-positive status following induction and consolidation therapy are also eligible for enrollment.

Age 18 to 80 years, inclusive.

Eastern Cooperative Oncology Group (ECOG) performance status of 0-3.

Disqualifiers

New York Heart Association (NYHA) Class III or IV heart failure;

Myocardial infarction;

Cardiac angioplasty or stent placement;

Unstable angina;

Trial design

Design model

Single group

Treatments tested in this trial

  • IL-15-armored CAR-T cells

    Biological/Vaccine

    BCMA-targeted: 1.0/1.5/2.0 × 10\^6 CAR-T cells; CD19/BCMA dual-targeted: 1.0/1.5/2.0 × 10\^6 CAR-T cells; GPRC5D-targeted: 1.0/2.0/3.0 × 10\^6 CAR-T cells.

Treatment groups

25 Participants
are divided into 1 treatment group
Group A: IL-15 armored CAR-T cellsExperimental treatment 1 intervention

Trial outcomes

Primary outcomes

1

Overall response rate (ORR)

Percentage of participants with presence of stringent complete response (sCR), complete response (CR), very good partial response (VGPR) or partial response (PR). ORR assessment will be based on International Myeloma Working Group (IMWG) response criteria.

Time frame
From infusion to 12 months

Secondary outcomes

1

Complete Response Rate

Percentage of participants who achieved CR or sCR according to IMWG Uniform Response Criteria for Multiple Myeloma

Time frame
From infusion to 12 months
2

MRD-negative rate

Achieving measurable residual disease (MRD) negativity, as determined by multiparameter flow cytometry (MFC) or next-generation sequencing (NGS) after CAR-T cells infusion.

Time frame
From infusion to 12 months
3

CR/MRD-negative rate

Percentage of participants who achieved both CR and MRD negativity with a sensitivity of 10\^-4 or better within 12 months post infusion.

Time frame
From infusion to 12 months
4

Time to Response

Time from infusion to first documentation of response of PR or better.

Time frame
From infusion to 12 months

Other outcomes

Sponsors and contacts

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