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NCT05766371PHASE2RECRUITING

Pembrolizumab Plus 177Lu-PSMA-617 in Patients With Castration Resistant Prostate Cancer

A Phase 2 Study of Pembrolizumab Plus 177Lu-PSMA-617 in Patients With Metastatic Castration Resistant Prostate Cancer

Sponsor: University of California, San Francisco + Merck Sharp & Dohme LLC, Prostate Cancer Foundation

No open prediction endpoints

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Key Facts

Study type
INTERVENTIONAL
Conditions
Castrate Resistant Prostate Cancer, Metastatic Castration-resistant Prostate Cancer, Prostate Cancer, Prostate Carcinoma
Interventions
Pembrolizumab, 177Lu-PSMA-617
Enrollment
48 participants
Primary completion
May 2027
Study completion
May 2031
First posted
Mar 2023
Last updated
Apr 2026

Primary Endpoints (CT.gov)

Median radiographic progression-free survival (rPFS) at 12 months

Time frame: 12 months

Secondary Endpoints

Overall median radiographic rPFS

Objective response rate (ORR)

Median duration of objective response (DOR)

Eligibility Criteria

Inclusion Criteria: 1. Histologically confirmed prostate adenocarcinoma that is progressive metastatic castration-resistant prostate cancer by Prostate Cancer Clinical Trials Working Group 3 (PCWG3) criteria at the time of study entry. 2. Male participants who are at least 18 years of age on the day of signing informed consent. 3. Castrate level of serum testosterone at study entry (\< 50 ng/dL). Note: Participants without prior bilateral orchiectomy are required to remain on Luteinizing hormone-releasing hormone (LHRH) analogue treatment for duration of study. 4. Prior progression on at least one second generation androgen signaling inhibitor including abiraterone, apalutamide, darolutamide, and/or enzalutamide. 5. Adverse events related to prior anti-cancer treatment (excluding LHRH analogs) must have recovered to Grade \<= 1 (except for any grade alopecia and grade \<= 2 neuropathy). 6. Prior radiotherapy is allowed if the last radiotherapy treatment was greater than 2 weeks from s

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✦ Analyst Commentary

Expert commentary on why this trial matters and what to watch for.

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Source

Open on ClinicalTrials.gov