Status:

UNKNOWN

T Cells Expressing a Bispecific CAR Targeting CS1 and BCMA in Relapsed/Refractory Multiple Myeloma

Lead Sponsor:

Union Hospital, Tongji Medical College, Huazhong University of Science and Technology

Collaborating Sponsors:

Wuhan Si'an Medical Technology Co., Ltd

Conditions:

CS1+ or BCMA+ Multiple Myeloma

Eligibility:

All Genders

18-75 years

Phase:

PHASE1

Brief Summary

This is a single-center, open-label, single-arm study to evaluate the safety and efficacy of the bispecific CAR T cells targeting CS1 and BCMA in patients with relapsed or refractory multiple myeloma.

Detailed Description

* Multiple myeloma(MM) is one of the most common hematological malignancies with substantial morbidity and mortality. * In recent years, several new therapies have prolonged survival of patients with ...

Eligibility Criteria

Inclusion

  • Each potential subject must meet all of the following criteria to be enrolled in the study:
  • Aged 18-78 years old, males or females.
  • Relapsed or refractory multiple myeloma according to IMWG diagnostic criteria.
  • Received at least 2 prior lines of treatment for multiple myeloma, including a proteasome inhibitor and an immunomodulatory drug.
  • Detectable MM cells in bone marrow by conventional morphologic methods or flow cytometry, and positive expression of CS1 or BCMA on MM cells as confirmed by immunohistochemistry or flow cytometry.
  • Measurable diseases at screening as defined by any of the following:
  • Serum M-protein level ≥1.0g/dL;
  • Urine M-protein level ≥200mg/24 hours;
  • Serum immunoglobulin free light chain(FLC) ≥10 mg/dL provided abnormal FLC ratio.
  • Recovery to grade 1 or baseline of toxicities due to prior treatment, excluding hematologic toxicities and toxicity of no clinical significance, like alopecia.
  • ECOG Performance Status 0 \~ 2 (ECOG status of larger than 2 points caused by MM osteolytic destruction is accepted).
  • Good organ function at screening as defined by any of the following:
  • AST and ALT ≤ 2.5×upper limit of normal (ULN);
  • Total bilirubin≤ 2.0×ULN;
  • Creatinine clearance ≥30 mL/min/1.73m2;
  • Ejection fraction of heart ≥50%, and no clinically significant abnormal ECG findings.
  • Clinical laboratory values meeting the following criteria at screening:
  • Absolute Neutrophil Count(ANC) ≥1.0×10\^9/L;
  • Platelets ≥30×10\^9/L;
  • Absolute Lymphocyte Count ≥1.0×10\^8/L;
  • Hemoglobin(Hb) ≥6.0g/dL.
  • Women of childbearing potential must have a negative pregnancy test at screening.
  • Patients with extramedullary lesions were eligible.
  • Patients who received prior allogeneic or autologous stem cell transplantation at least three months before screening were eligible.
  • Sign the informed consent voluntarily.

Exclusion

  • Any potential subject who meets any of the following criteria will be excluded from participating in the study:
  • Evidence of serious viral, bacterial, or uncontrolled systemic fungal infection.
  • Seropositive for human immunodeficiency virus (HIV) antibody.
  • Seronegative for hepatitis B antigen or a known history of hepatitis B.
  • Hepatitis C (anti-hepatitis C virus \[HCV\] antibody positive or HCV-RNA quantitation positive) or a known history of hepatitis C.
  • Systemic corticosteroid therapy of greater than 5 mg/day of prednisone or equivalent dose within 2 weeks prior to apheresis.
  • Active autoimmune disease or a history of autoimmune disease within 3 years.
  • The following cardiac conditions: Myocardial infarction or coronary artery bypass graft ≤6 months prior to enrollment; History of clinically significant ventricular arrhythmia or unexplained; New York Heart Association stage III or IV congestive heart failure.
  • A history of epilepsy or other central nervous system diseases or altered mental status.
  • Known life-threatening allergies, hypersensitivity, or intolerance to CAR-T cells or relevant lymphodepleting regimens (cyclophosphamide and fludarabine).
  • Pregnant or breast-feeding, or planning to become pregnant while enrolled in this study or within one year after receiving study treatment.
  • Any uncontrolled diseases, other than multiple myeloma, that may lead to abnormal death.
  • Being participating in other intervention studies.
  • Other cases excluded by the Investigators.

Key Trial Info

Start Date :

March 25 2020

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

December 30 2023

Estimated Enrollment :

24 Patients enrolled

Trial Details

Trial ID

NCT04662099

Start Date

March 25 2020

End Date

December 30 2023

Last Update

August 16 2023

Active Locations (1)

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Union Hospital, Tongji Medical College, Huazhong University of Science and Technology

Wuhan, Hubei, China, 430022