Metastatic Castration-resistant Prostate Cancer, mCRPC Clinical Trial
Official title:
An Open-Label, Non-Randomized, Single-Center, Investigator-Initiated Trial to Determine the Safety, Dosimetry, and Preliminary Effectiveness of 177Lu-Dansyl-PSMA in Patients With Metastatic Castration-Resistant Prostate Cancer
Ten to 20% of patients with prostate cancer (PC) experience progression in their disease, even after undergoing pharmaceutical or surgical castration, leading to metastatic CRPC (mCRPC). Prostate-specific membrane antigen (PSMA) is a membrane-bound glycoprotein mostly specific to the prostate. While PSMA is expressed at low levels in normal prostate, this expression increased by 100-1000-fold in PC, which makes it a favorable target for therapy. This study was designed to evaluate the safety, tolerability, and maximum tolerated dose of a long-lasting radiolabeled ligand 177Lu-Dansyl-PSMA in mCRPC patients.
This proposal is a phase I, open-label study of escalating doses of 177Lu-Dansyl-PSMA Injection in patients with PSMA-positive mCRPC. The initial dose of 177Lu-Dansyl-PSMA is 1.85GBq (50 mCi), and subsequent cohorts receive an incremental 50% dose increase until dose-limiting toxicity (DLT) is observed. Treatment is planned for up to 2 cycles, and the time interval between cycles is 6 weeks. The primary endpoint assessed the safety and maximum tolerated dose of 177Lu-Dansyl-PSMA used for radioligand therapy in patients with PSMA-positive mCRPC. Secondary endpoints included dosimetry and determination of the preliminary treatment efficacy of 177Lu-Dansyl-PSMA. ;