Clinical Study to Assess the Efficacy and Safety of Olaparib in Chinese Patients With Metastatic Castration-Resistant Prostate Cancer Who Have Failed Prior Treatment With a New Hormonal Agent and Have BRCA1/2 Mutations
Metastatic Castration-resistant Prostate Cancer
About this trial
This is an interventional treatment trial for Metastatic Castration-resistant Prostate Cancer focused on measuring metastatic castration-resistant prostate cancer (mCRPC), BRCA1/2 mutations
Eligibility Criteria
Inclusion criteria:
- Histologically confirmed diagnosis of prostate cancer.
- Documented evidence of metastatic castration resistant prostate cancer (mCRPC).
- Subjects must have progressed on prior new hormonal agent (e.g. abiraterone acetate and/or enzalutamide) for the treatment of metastatic prostate cancer and/or CRPC .
- Ongoing therapy with LHRH analog or bilateral orchiectomy.
- Radiological progression at study entry while on androgen deprivation therapy (or after bilateral orchiectomy).
- Deleterious or suspected deleterious BRCA1/2 mutation in tumor tissue.
- Normal organ and bone marrow function measured within 28 days prior to administration of study treatment.
- Eastern Cooperative Oncology Group (ECOG) performance status 0-2 with no deterioration over the previous 2 weeks prior to baseline or day of first dosing.
Exclusion criteria:
- Any previous treatment with a poly (adenosine diphosphate [ADP] ribose) polymerase (PARP) inhibitor, including olaparib.
- Subjects who had any previous treatment with DNA-damaging cytotoxic chemotherapy, except if for non-prostate cancer indication and last dose > 5 years prior to randomization.
- History of another primary malignancy except for malignancy treated with curative intent with no known active disease for ≥5 years before the first dose of study intervention and of low potential risk for recurrence.
- Spinal cord compression or brain metastases unless asymptomatic, stable, and not requiring steroids for at least 4 weeks prior to start of study intervention.
Sites / Locations
- Research SiteRecruiting
- Research SiteRecruiting
- Research SiteRecruiting
- Research SiteRecruiting
- Research SiteRecruiting
- Research Site
- Research SiteRecruiting
- Research SiteRecruiting
- Research SiteRecruiting
- Research SiteRecruiting
- Research Site
- Research SiteRecruiting
- Research SiteRecruiting
- Research SiteRecruiting
- Research SiteRecruiting
- Research SiteRecruiting
- Research SiteRecruiting
- Research SiteRecruiting
- Research SiteRecruiting
- Research SiteRecruiting
- Research SiteRecruiting
- Research SiteRecruiting
- Research SiteRecruiting
- Research SiteRecruiting
- Research SiteRecruiting
- Research SiteRecruiting
- Research SiteRecruiting
- Research SiteRecruiting
- Research SiteRecruiting
- Research SiteRecruiting
- Research SiteRecruiting
- Research SiteRecruiting
- Research SiteRecruiting
- Research SiteRecruiting
- Research SiteRecruiting
- Research SiteRecruiting
- Research SiteRecruiting
Arms of the Study
Arm 1
Arm 2
Experimental
Active Comparator
Olaparib
Enzalutamide OR abiraterone acetate
Olaparib is available as a film-coated tablet containing 150 mg or 100 mg of olaparib. Subjects will be administered study treatment orally at a dose of 300 mg twice daily (bid). The planned dose of 300 mg bid will be made up of two x 150 mg tablets twice daily, with 100 mg tablets used to manage dose reductions
Enzalutamide: Enzalutamide is available as capsules or tablets containing 40 mg of enzalutamide. Subjects will be administered study treatment orally at a dose of 160 mg once daily. Abiraterone acetate with prednisone: Abiraterone acetate is available as tablets containing 250 mg of abiraterone acetate. Subjects will be administered study treatment orally at a dose of 1,000 mg once daily. Prednisone is 5mg twice daily. Prednisolone is permitted for use instead of prednisone if necessary.