A Study of Niraparib Combination Therapies for the Treatment of Metastatic Castration-Resistant Prostate Cancer

Sponsor: Janssen Research & Development, LLC

Sponsor score: 60

ClinicalTrials ID:NCT03431350

This multicenter study assesses the safety and efficacy of niraparib with cetrelimab or abiraterone acetate plus prednisone in mCRPC patients. It includes dose selection, expansion, and bioavailability phases. Participants receive niraparib, cetrelimab, abiraterone acetate, and prednisone. Evaluations cover efficacy, pharmacokinetics, biomarkers, safety, and tolerability.

Patient Parameters

Program Overview

The purpose of this study is to: a) establish the recommended phase 2 dose (RP2D) and to evaluate the antitumor activity and safety of niraparib combination therapies (Combinations 1 and 2) and b) to determine the relative bioavailability of niraparib and abiraterone acetate (AA) in combination (Combination 3) in participants with metastatic castration-resistant prostate cancer (mCRPC).

Description

This multicenter study will evaluate safety and efficacy of niraparib in combination with other anti-cancer agents. Combination 1 will combine niraparib with the anti-programmed cell death protein (PD)-1 monoclonal antibody cetrelimab, in participants with mCRPC. Combination 1 has 2 parts: in Part 1 (dose selection), participants will be enrolled to establish RP2D doses of niraparib and cetrelimab; and Part 2 (dose expansion) will evaluate the combination therapy in an expanded number of participants into 2 cohorts (biomarker positive or biomarker negative). Combination 2 will combine niraparib with abiraterone acetate plus prednisone (AA-P) in mCRPC participants with DNA-repair gene defects (DRD). Combination 3 will evaluate the relative bioavailability (BA) of niraparib and AA in combination. In a pharmacokinetics (PK) assessment phase, niraparib and AA will be administered, and in an extension phase, niraparib and AA-P will be administered. Combinations 1 and 2 will have 5 phases: A Pre-screening Phase, a Screening Phase, a Treatment Phase, a Follow-up Phase, and a Long-term Extension (LTE) Phase; Combination 3 has 3 phases: A Screening Phase, A PK Assessment Phase, an Extension Phase (including LTE phase). Study evaluations will include efficacy, PK, PK/pharmacodynamics, biomarkers, safety and tolerability.

Eligibility Criteria

Exclusion Criteria

  • History or current diagnosis of myelodysplastic syndrome (MDS)/acute myeloid leukemia (AML)
  • Active malignancies (that is, progressing or requiring treatment change in the last 24 months) other than the disease being treated under study. The only allowed exceptions are: non-muscle invasive bladder cancer; skin cancer (non-melanoma or melanoma); breast cancer; malignancy that is considered cured with minimal risk of recurrence
  • Active infection requiring systemic therapy
  • Allergies, hypersensitivity, or intolerance to niraparib or the corresponding excipients

Combination 3:

  • Symptomatic brain metastases
  • Prior disease progression during combination treatment with AA and poly (adenosine diphosphate [ADP]-ribose) polymerase inhibitor (PARPi). Prior discontinuation of treatment with AA or PARPi due to AA- or PARPi-related toxicity

Locations

FACILITYZIPCITYSTATE
Urological Associates of Southern Arizona, P.C.85741TucsonArizona
The Urology Center of Colorado80211DenverColorado
Mayo Clinic - Division Of Hematology/oncology32224JacksonvilleFlorida
First Urology, PSC47130JeffersonvilleIndiana
Chesapeake Urology Research Associates21204TowsonMaryland
Michigan Institute of Urology48084TroyMichigan
New York Oncology Hematology12208AlbanyNew York
Memorial Sloan Kettering Cancer Center10604HarrisonNew York
Memorial Sloan Kettering Cancer Center10065New YorkNew York
Thomas Jefferson University19107PhiladelphiaPennsylvania

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