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Study identifier: NCT04038502 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

Carboplatin or Olaparib for BRcA Deficient Prostate Cancer

Condition: Metastatic Castrate Resistant Prostate Cancer · BARD1, BRCA1, BRCA2, BRIP1, CHEK1, FANCL, PALB2 · RAD51B, RAD51C, RAD51D, or RAD54L Mutations  ·  Sponsor: VA Office of Research and Development

PhasePhase 2
Planned participants100
Who can joinMale, 18 Years to no upper limit
Healthy volunteersNo

About this study

This is an unblinded, randomized clinical study comparing the efficacy of DNA damaging chemotherapy using carboplatin, to standard of care therapy for patients who have metastatic castrate resistant prostate cancer. This trial will use olaparib or carboplatin as initial therapy with crossover to the alternate or second-line drug after first progression for patients with tumors containing BARD1, BRCA1, BRCA2, BRIP1, CHEK1, FANCL, PALB2, RAD51B, RAD51C, RAD51D, or RAD54L inactivating mutations. Participants are randomized (1:1) and receive either carboplatin (AUC 5, IV) every 21 days, first or olaparib taken orally (300 mg), twice daily in 28 day cycles, until intolerance, complete response, or progression by Prostate Cancer Working Group 3 (PCWG3) criteria. Participants then crossover from the first-line therapy to the second-line therapy with the opposite study medication and receive treatment to intolerance or progression (whichever is first). Enrolled participants will be allowed to crossover to second line therapy if they continue to meet initial eligibility criteria, and at least three weeks have elapsed since last administration of either carboplatin or olaparib. Throughout the study, safety and tolerability will be assessed. Progression will be evaluated with bone scan, CT of the abdomen/pelvis, or MRI and PSA as per PCWG3 criteria.

This description comes directly from the study's public registry record.

Talk to the study team

Robert B Montgomery, MD  ·  (206) 277-6878  ·  rbmontgo@uw.edu

Makayla L DeJong, BA  ·  (206) 277-4527  ·  Makayla.Dejong@va.gov

Always discuss trial participation with your own doctor first.

Locations (18)

VA Greater Los Angeles Healthcare System, West Los Angeles, CAWest Los Angeles, California, United StatesRecruiting
Rocky Mountain Regional VA Medical Center, Aurora, COAurora, Colorado, United StatesRecruiting
Washington DC VA Medical Center, Washington, DCWashington D.C., District of Columbia, United StatesRecruiting
Bay Pines VA Healthcare System, Pay Pines, FLBay Pines, Florida, United StatesTerminated
Orlando VA Medical Center, Orlando, FLOrlando, Florida, United StatesRecruiting
Atlanta VA Medical and Rehab Center, Decatur, GADecatur, Georgia, United StatesRecruiting
Boise VA Medical Center, Boise, IDBoise, Idaho, United StatesRecruiting
Jesse Brown VA Medical Center, Chicago, ILChicago, Illinois, United StatesTerminated
VA Ann Arbor Healthcare System, Ann Arbor, MIAnn Arbor, Michigan, United StatesRecruiting
Minneapolis VA Health Care System, Minneapolis, MNMinneapolis, Minnesota, United StatesRecruiting
Kansas City VA Medical Center, Kansas City, MOKansas City, Missouri, United StatesRecruiting
Manhattan Campus of the VA NY Harbor Healthcare System, New York, NYNew York, New York, United StatesRecruiting

+ 6 more locations — full list on the registry record.

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Source record: clinicaltrials.gov/study/NCT04038502