P-BCMA-101 Tscm CAR-T Cells in the Treatment of Patients With Multiple Myeloma (MM)
- Males or females, ≥18 years of age
- Must have a confirmed diagnosis of active MM
- Must have measurable MM
- Must have relapsed / refractory MM, having received treatment with proteasome inhibitor and IMiD [Phase 2: Must have relapsed / refractory MM, and refractory to last line of therapy, having received treatment with proteasome inhibitor, an IMiD, CD38 targeted therapy and undergone autologous stem cell transplant (ASCT) or not a candidate for ASCT.]
- Must have adequate hepatic, renal, cardiac and hematopoietic function
- Is pregnant or lactating
- Has inadequate venous access and/or contraindications to leukapheresis
- Has active hemolytic anemia, plasma cell leukemia, Waldenstrom's macroglobulinemia, POEMS syndrome, disseminated intravascular coagulation, leukostasis, amyloidosis, significant autoimmune, CNS or other malignant disease
- Has an active second malignancy (not disease-free for at least 5 years) in addition to MM, excluding low-risk neoplasms such as non-metastatic basal cell or squamous cell skin carcinoma.
- Has active autoimmune disease
- Has a history of significant central nervous system (CNS) disease, such as stroke, epilepsy, etc.
- Has an active systemic infection
- Has hepatitis B or C virus, human immunodeficiency virus (HIV), or human T-lymphotropic virus (HTLV) infection, or any immunodeficiency syndrome.
- Has any psychiatric or medical disorder that would preclude safe participation in and/or adherence to the protocol
- Has receiving immunosuppressive or other contraindicated therapies within the excluded time frame from entry
- Has CNS metastases or symptomatic CNS involvement
- Has a history of having undergone allogeneic stem cell transplantation, or any other allogeneic or xenogeneic transplant, or has undergone autologous transplantation within 90 days.
- Unable to take acetylsalicylic acid (ASA) daily as prophylactic anticoagulation. (Cohorts R and RP only).
- History of thromboembolic disease within the past 6 months, regardless of anticoagulation (Cohorts R and RP only).
Phase 1 follows a 3 + 3 design of dose-escalating cohorts. Phase 2 of the study is an
open-label multi-center efficacy and safety study. After a patient enrolls, leukapheresis
will be performed to obtain peripheral blood mononuclear cells which will be sent to a
manufacturing site to produce P-BCMA-101 CAR-T cells. The cells will then be returned to the
investigational site and, after a standard chemotherapy based conditioning regimen, will be
administered to the patient across 1-3 infusions, with or without combination therapy.
Treated patients will undergo serial measurements of safety, tolerability and response.
Rimiducid may be administered as indicated.
Trial Phase Phase I/II
Trial Type Treatment
Poseida Therapeutics, Inc.
- Primary ID P-BCMA-101-001
- Secondary IDs NCI-2017-02379
- Clinicaltrials.gov ID NCT03288493