Refractory or Relapsed Multiple Myeloma
Conditions
Brief summary
This is a single arm, open-label, phase 1 study, to determine the safety and efficacy of LCAR-B4822M CAR-T cells in treating patients diagnosed with refractory/relapsed multiple myeloma (r/r MM).
Detailed description
Multiple myeloma (MM) is a usually incurable malignancy of plasma cells. Current therapies for multiple myeloma often cause remissions, but nearly all patients eventually relapse, there is an unmet clinical needs for these patients. B-cell maturation antigen (BCMA) is a protein expressed by normal plasma cells and the malignant plasma cells of multiple myeloma, and it was supposed to be a promising target for r/r MM.
Interventions
DRUGLCAR-B4822M CAR-T Cell Immunotherapy
Patients will undergo leukapheresis to isolate peripheral blood mononuclear cells (PBMCs) for the production of CAR-T cells. After a pre-treatment lymphodepletion therapy, patients will receive the LCAR-B4822M CAR-T Cell Immunotherapy by intravenous injection.
Sponsors
Nanjing Legend Biotech Co.
Second Affiliated Hospital of Xi'an Jiaotong University
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to 73 Years
Healthy volunteers
No
Inclusion criteria
\- Patients must have a confirmed prior diagnosis of active multiple myeloma as defined by the updated IMWG criteria. Patients with refractory multiple myeloma. Clear BCMA expression must be detected on malignant plasma cells from either bone marrow or a plasmacytoma by flow cytometry or immunohistochemistry. Refractory disease：1) At least 3 prior regimens, which must at least have contained bortezomi. or 2) other circumstances identified by clinical doctors. Relapse criteria in NCCN clinical practice guidelines in Oncology: Multiple Myeloma (2016.V2)
Exclusion criteria
\- Women of child-bearing potential or who are pregnant or breastfeeding. Have any active and uncontrolled infection: hepatitis B, hepatitis C, HIV, or other fatal viral and bacterial infection. Systemic corticosteroid steroid therapy of greater than 5 mg/day of prednisone or equivalent dose of another corticosteroid are not allowed within 2 weeks prior to either the required leukapheresis or the initiation of the conditioning chemotherapy regimen. Patients with any uncontrolled intercurrent illness or serious uncontrolled medical disorder. Patients with CNS metastases or symptomatic CNS involvement (including cranial neuropathies or mass lesions and spinal cord compression). History of allogeneic stem cell transplantation. Have active acute or chronic graft-versus-host-disease (GVHD), or require immunosuppressant medications for GVHD, within 6 months of enrollment. Patients with active autoimmune skin diseases such as psoriasis or other active autoimmune diseases such as rheumatoid arthritis.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Occurrence of treatment related adverse events | Day 1-30 days after injection | Assessed by CTCAE v4.0 |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Anti-myeloma responses to LCAR-B4822M cell treatment | Day 1-36 months after injection | by measuring the changes of aberrant immunoglobulin in serum |
| Anti-myeloma responses to LCAR-B38M cell treatment | Day 1-36 months after injection | multiple myeloma cells in bone marrow |
Countries
China
Outcome results
None listed