Oligometastatic Prostate Carcinoma Clinical Trial
Official title:
Safety and Efficacy Study of Neoadjuvant Radiohormonal Therapy for Oligometastatic Prostate Cancer: a Multi-center Randomized Controlled Clinical Trial
The optimal treatment for oligometastatic prostate cancer (OMPC) is still on its way. Accumulating evidence has proven the safety and feasibility of radical prostatectomy and local or metastasis-directed radiotherapy for oligometastatic patients. The aim of this trial is to compare the safety and feasibility outcomes of metastasis-directed neoadjuvant radiotherapy (naRT) and neoadjuvant androgen deprivation therapy (naADT) followed by robotic-assisted radical prostatectomy (RARP) to ADT combined with abiraterone for treating OMPC.
The present study will be conducted as a prospective, open-label, two arms clinical trial. Patients with ≤ 3 de novo oligometastatic PCa, diagnosed on Ga-68 prostate-specific membrane antigen (PSMA) PET/CT, will be randomized in a 1:1 ratio between arm A (hormone) and arm B (neoadjuvant hormone and RT). The patients in arm A with oligometastatic PCa will receive long-term ADT combined with abiraterone. The patients in arm B with oligometastatic PCa will receive 1 month of naADT, followed by metastasis-directed radiation and abdominal or pelvic radiotherapy. Then, radical prostatectomy will be performed at intervals of 5-15 weeks after radiotherapy, and long-term ADT will be continued. The primary endpoints of the study are progression-free survival (PFS) including biochemical recurrence-free survival (bPFS), and radiological progression-free survival (RPFS). The secondary endpoints include quality of life (QoL), time to CRPC, positive surgical margin (pSM), overall survival (OS), postoperative continence, and toxicities parameters. ;
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