A Phase 1 Dose Escalation and Expanded Cohort Study of P-PSMA-101 in Subjects With Metastatic Castration-Resistant Prostate Cancer (mCRPC) and Advanced Salivary Gland Cancers (SGC)

Condition: Prostatic Neoplasms, Castration-Resistant, Neoplasms by Histologic Type, Neoplasms, Prostate, Prostate Cancer, Metastatic Castration-resistant Prostate Cancer, Neoplasms, Prostatic Neoplasms, Genital Neoplasms, Male, Urogenital Neoplasms, Neoplasms by Site, Prostatic Disease, Salivary Gland Cancer, Salivary Gland Tumor, Adenoid Cystic Carcinoma, Salivary Duct Carcinoma, Mucoepidermoid Carcinoma, Acinic Cell Tumor

Study Type: Interventional

Clinical Trials Identifier NCT 8-digits: NCT04249947

Sponsor: Poseida Therapeutics, Inc.

Phase: Phase 1


  • Age: minimum 18 Years maximum N/A
  • Gender: All

Inclusion Criteria:

  • Subjects ≥18 years of age
  • Must have a confirmed diagnosis of mCRPC or SGC
  • Must have measurable disease by RECIST 1.1 or bone only metastases with measurable PSA (≥1 ng/mL) (mCRPC subjects only)
  • Must have progressed by PCWG3 and/or RECIST 1.1 (mCRPC subjects only)
  • Must be willing to practice birth control from screening and for 2 years after the last administration of P-PSMA-101
  • 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 or SGC, 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 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 (<5 lesions and maximum diameter
  • Has a history of or known predisposition to HLH or MAS

View trial on ClinicalTrials.gov

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