A Study of Niraparib in Combination With Abiraterone Acetate and Prednisone Versus Abiraterone Acetate and Prednisone for Treatment of Participants With Metastatic Prostate Cancer

Official record

Identifier

NCT03748641

Recruiting locations

countries

United StatesArgentinaAustraliaBelgiumBrazilBulgariaCanadaChinaCzechiaFranceGermanyHungaryIsraelItalyMalaysiaMexicoNetherlandsPolandPortugalPuerto RicoRussiaSouth AfricaSouth KoreaSpainSwedenTaiwanTurkey (Türkiye)UkraineUnited Kingdom

Interventions studied

NiraparibAbiraterone AcetatePrednisonePlaceboNew Formulation of Niraparib and Abiraterone Acetate (AA)

Lead sponsor

Janssen Research & Development, LLC

Target enrolment

765 participants

Study type

INTERVENTIONAL

Phase

Phase 3

Status

Active, not recruiting

First posted

Nov 21, 2018

Last updated on the registry

Jul 31, 2026

Age

18 Years

Sex

MALE

Study contact

No public contact is listed on the official record.

Eligibility criteria

Reproduced verbatim from the official record. Eligibility is decided by the study team, never by this page.

Inclusion Criteria:

* HRR gene alteration (as identified by the sponsor's required assays) as follows:

  1. Cohort 1: positive for HRR gene alteration
  2. Cohort 2: not positive for DRD (that is, HRR gene alteration)
  3. Cohort 3: eligible by HRR status
* Metastatic disease documented by positive bone scan or metastatic lesions on computed tomography (CT) or magnetic resonance imaging (MRI)
* Metastatic prostate cancer in the setting of castrate levels of testosterone less than or equal to (\<=) 50 nanogram per deciliter (ng/dL) on a gonadotropin releasing hormone analog (GnRHa) or bilateral orchiectomy
* Able to continue GnRHa during the study if not surgically castrate
* Score of \<= 3 on the brief pain inventory-short form (BPI-SF) question number 3 (worst pain in last 24 hours)

Exclusion Criteria:

* Prior treatment with a poly (adenosine diphosphate \[ADP\]-ribose) polymerase (PARP) inhibitor
* Systemic therapy (that is, novel second-generation AR-targeted therapy such as enzalutamide, apalutamide, or darolutamide; taxane-based chemotherapy, or more than 4 months of abiraterone acetate plus prednisone \[AAP\] prior to randomization) in the metastatic castration-resistant prostate cancer (mCRPC) setting; or AAP outside of the mCRPC setting
* Symptomatic brain metastases
* History or current diagnosis of myelodysplastic syndrome (MDS)/acute myeloid leukemia (AML)
* Other prior malignancy (exceptions: adequately treated basal cell or squamous cell skin cancer, superficial bladder cancer, or any other cancer in situ currently in complete remission) \<= 2 years prior to randomization, or malignancy that currently requires active systemic therapy

Indexed under

Prostate Cancer