Status:

RECRUITING

Safety and Efficacy of Anti-BCMA-GPRC5D CAR-T Cells Therapy in the Treatment of r/r MM

Lead Sponsor:

920th Hospital of Joint Logistics Support Force of People's Liberation Army of China

Collaborating Sponsors:

Guangzhou Bio-gene Technology Co., Ltd

Conditions:

Relapsed/Refractory Multiple Myeloma

Eligibility:

All Genders

18-75 years

Phase:

NA

Brief Summary

This is a single-center, open-label, single-arm study to evaluate the safety and efficacy of bispecific BCMA-GPRC5D CAR-T cells in patients with relapsed or refractory multiple myeloma who received th...

Detailed Description

This is a single-center, open-label, single-arm study to evaluate the safety and efficacy of bispecific BCMA-GPRC5D CAR-T cells in patients with relapsed or refractory multiple myeloma who received th...

Eligibility Criteria

Inclusion

  • The patient or his/her guardian understands and voluntarily signs the informed consent, and is expected to complete the follow-up examination and treatment of the study procedure;
  • Age 18-75 years old, gender unlimited;
  • Diagnosed as Multiple Myeloma (MM) according to the international standard for multiple myeloma (IMWG);
  • The presence of measurable disease at screening meets one of the following criteria:Serum M-protein ≥ 1.0 g/dL or Urine M-protein ≥ 200 mg/24h or diagnosed as Light-chain MM without measurable disease in serum and urine; Serum free light chain ≥ 10 mg/dL with an abnormal κ/λ ratio;
  • Patients must relapse or be refractory after three or more lines of therapy, which at least include: one Proteasome Inhibitor (PI), one Immunomodulatory Drug (IMiD), and one anti-CD38 monoclonal antibody;
  • diagnosed as relapsed/refractory disease or primary refractory disease;
  • The last treatment is ineffective, or the disease progresses within 60 days after the end of the last therapy;
  • The patient has recovered from the toxicity of the prior treatment, i.e., CTCAE toxicity grade \< 2 (unless the abnormality is related to the tumor or is stable as judged by the investigator and has little impact on safety or efficacy);
  • ECOG score 1-2 points and the expected survival period ≥ 3 months;
  • Liver, kidney and cardiopulmonary functions meet the following requirements:
  • Total bilirubin ≤ 1.5×ULN, alanine aminotransferase (ALT) ≤ 3 × ULN and aspartate aminotransferase (AST) ≤ 3 × ULN;
  • Serum creatinine ≤ 1.5×ULN, or creatinine clearance ≥ 60 mL/min;
  • Hemoglobin (Hb) ≥ 50 g/L without prior blood transfusion within 7 days;
  • Baseline peripheral oxygen saturation \> 92%;
  • Corrected serum calcium ≤ 12.5 mg/dL (≤ 3.1 mmol/L) or free (ionized, ionic) calcium ≤ 6.5 mg/dL (≤ 1.6 mmol/L);
  • Left ventricular ejection fraction (LVEF) \> 45%, without confirmed pericardiac effusion and abnormal electrocardiography with clinical significance;
  • Without clinically significant pleural effusion;
  • Venous access could be established; without contraindications of apheresis.

Exclusion

  • Have been diagnosed with or treated for aggressive malignancies other than multiple myeloma;
  • Prior antitumor therapy (prior to blood collection for CAR-T preparation) : targeted therapy, epigenetic therapy, or investigational drug therapy within 14 days or at least 5 half-lives, whichever is shorter;
  • It is suspected that MM has involved the central nervous system or meninges and has been confirmed by MRI or CT, or there are other active central nervous system diseases;
  • Patients with Fahrenheit macroglobulinemia, POEMS syndrome, or primary AL, amyloidosis;
  • Subjects with positive HBsAg or HBcAb positive and peripheral blood HBV DNA titer is higher than the lower limit of detection of the research institution; HCV antibody positive; HIV antibody positive; CMV DNA titer is higher than the lower limit of detection of the research institution; EBV DNA titer is higher than the lower limit of detection of the research institution;
  • Patients have a severe allergic history;
  • Any unstable systemic disease: including but not limited to unstable angina, cerebrovascular accident or transient cerebral ischemia (within 6 months before screening), myocardial infarction (within 6 months before screening), congestive heart failure \[New York Heart Association (NYHA) classification ≥ grade III\];
  • Systemic diseases judged by researchers to be unstable: including but not limited to severe liver, kidney or metabolic diseases requiring drug treatment;
  • Patients with acute/chronic graft-versus-host disease (GVHD) or requiring immunosuppressive therapy for GVHD within 6 months prior to screening;
  • Active autoimmune or inflammatory diseases of the nervous system;
  • Patients develop oncology emergencies and need to be treated before screening or infusion;
  • Uncontrolled infections that need antibiotics treatment;
  • Exposure to hematopoietic growth factor of cells within 1-2 weeks before apheresis;
  • Exposure to Corticosteriods or immunosuppressive agents within 2 weeks before apheresis;
  • Patients receive a major surgical operation within 4 weeks before lymphodepletion or do not recover completely before the enrollment; or plan to receive a major surgical operation during the study period;
  • Live attenuated vaccine within 4 weeks before screening;
  • Persons with serious mental illness;
  • Alcoholics or persons with a history of drug abuse;
  • Pregnant or Lactating Women; Patients and his or her spouse have a fertility plan within two years after CAR-T cell infusion;
  • Any unsuitable to participate in this trial judged by the investigator.

Key Trial Info

Start Date :

July 1 2024

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

December 1 2026

Estimated Enrollment :

10 Patients enrolled

Trial Details

Trial ID

NCT06515262

Start Date

July 1 2024

End Date

December 1 2026

Last Update

July 23 2024

Active Locations (1)

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Page 1 of 1 (1 locations)

1

Sanbin Wang

Kunming, Kunming, Yunnan, China, 650100