Description:
An open-label, multi-center, single and cyclic ascending dose study of P-PSMA-101 autologous CAR-T cells in patients with mCRPC.
An open-label, multi-center, single and cyclic ascending dose study of P-PSMA-101 autologous CAR-T cells in patients with mCRPC.
Recruiting
Phase 1
Drug | Synonyms | Arms |
---|---|---|
P-PSMA-101 CAR-T cells | P-PSMA-101 CAR-T cells (Multiple Dose - Part 1b) | |
Rimiducid | P-PSMA-101 CAR-T cells (Multiple Dose - Part 1b) |
This is an open label, multi-center Phase 1 study that will follow a 3 + 3 design of dose-escalating cohorts of single and multiple doses of P-PSMA-101 to determine a Recommended Phase 2 Dose (RP2D). Additional participants will be treated with P-PSMA-101 at the determined RP2D. Following consent, enrolled participants will undergo a leukapheresis procedure to obtain peripheral blood mononuclear cells (PBMCs) which will be sent to a manufacturing site to produce P-PSMA-101 CAR-T cells. The cells will then be returned to the investigational site and administered after a lymphodepleting chemotherapy regimen. Rimiducid may be administered as indicated.
Name | Type | Description | Interventions |
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P-PSMA-101 CAR-T cells (Single Dose - Part 1a) | Experimental | Single ascending dose cohorts, given in a single intravenous infusion of CAR-T cells, following conditioning chemotherapy regimen A. Rimiducid may be administered as indicated. |
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P-PSMA-101 CAR-T cells (Multiple Dose - Part 1b) | Experimental | Cyclic administration of ascending dose cohorts, given in a single intravenous infusion of CAR-T cells, following conditioning chemotherapy regimen A. Rimiducid may be administered as indicated. |
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P-PSMA-101 CAR-T cells (Single Dose - Part 1c) | Experimental | Single ascending dose cohorts, given in a single intravenous infusion of CAR-T cells, following conditioning chemotherapy regimen B. Rimiducid may be administered as indicated. |
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P-PSMA-101 CAR-T cells (Multiple Dose - Part 1d) | Experimental | Cyclic administration of ascending dose cohorts, given via intravenous infusions of CAR-T cells, following conditioning chemotherapy regimen B. Rimiducid may be administered as indicated. |
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Inclusion Criteria: - Males ≥18 years of age - Must have a confirmed diagnosis of mCRPC - Must have measurable disease by RECIST 1.1 or bone only metastases with measurable PSA (≥1 ng/mL) - Must have progressed by PCWG3 and/or RECIST 1.1 - Must have adequate vital organ function within pre-determined parameters - Must have an Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 1 Exclusion Criteria: - Has inadequate venous access and/or contraindications to leukapheresis - Has an active second malignancy in addition to mCRPC, excluding low-risk neoplasms such as non-metastatic basal cell or squamous cell skin carcinoma - Has a history of or active autoimmune disease - Has a history of significant central nervous system (CNS) disease, such as stroke or epilepsy - Has an active systemic (viral, bacterial or fungal) infection - Has received anti-cancer medications (excluding GnRH targeted therapies) within 2 weeks or 5 half-lives (whichever is longer) of the time of initiating conditioning chemotherapy - Has received immunosuppressive medications (including anti-cancer medications) within 2 weeks of initiating leukapheresis and/or expected to require them while enrolled in the study - Has received systemic corticosteroid therapy within 2 weeks of either the required leukapheresis or is expected to require it during the course of the study - Has CNS metastases or symptomatic CNS involvement - Has a history of significant ocular disease - Has a history of significant liver disease or active liver disease - Has liver metastases - Has a history of or known predisposition to HLH or MAS
Maximum Eligible Age: | N/A |
Minimum Eligible Age: | 18 Years |
Eligible Gender: | Male |
Healthy Volunteers: | No |
Measure: | Assess the Safety of P-PSMA-101 |
Time Frame: | Baseline through 15 years |
Safety Issue: | |
Description: | Incidence and severity of treatment-emergent adverse events |
Phase: | Phase 1 |
Primary Purpose: | Interventional |
Overall Status: | Recruiting |
Lead Sponsor: | Poseida Therapeutics, Inc. |
April 30, 2021