CI

At a glance

ClinicalIndex Comparison Record
Phase 2Completed· 22 enrolled
Drug / intervention
Gonadotrophin Releasing Hormone +2 morebiological
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT04037254
NCT04037254Phase 2Completed

Randomized Phase II Trial of Niraparib With Standard Combination Radiotherapy and Androgen Deprivation Therapy (ADT) in High Risk Prostate Cancer (With Initial Phase I) (NADIR*) *Randomized Phase II Trial of Niraparib With Standard Combination Androgen DeprIvation Therapy (ADT) and Radiotherapy in High Risk Prostate Cancer (With Initial Phase I)

NRG Oncology·interventional·Posted Jul 30, 2019·Updated May 20, 2026

In Brief

A Phase 2 clinical trial evaluating Gonadotrophin Releasing Hormone, Intensity-Modulated Radiation Therapy, and 1 other intervention for Prostate Adenocarcinoma and 6 related conditions. Completed, enrolled 22 participants across 95 sites in 2 countries.

Detailed Summary

This is a phase I-II trial to find the safety and activity of adding a new drug (neraparib) to the usual treatment (radiation combined with male hormone deprivation therapy) in lowering the chance of prostate cancer growing or returning. Niraparib is an inhibitor of PARP, an enzyme that helps repair deoxyribonucleic acid (DNA) when it becomes damaged. Blocking PARP may help keep cancer cells from repairing their damaged DNA, causing them to die. PARP inhibitors are a type of targeted therapy. Adding niraparib to the usual care may lower the chance of prostate cancer growing or returning.

Study Details

Timeline

Phase 2CompletedFinished
2020202120222023202420252026
First PostedJul 30, 2019
Enrollment StartOct 8, 2019
Primary CompletionJul 1, 2024
Study CompletionDec 23, 2025
TodayJul 2, 2026
Enrollment to primary: 4.7 yearsPosted 6.9 years ago

Interventions

Gonadotrophin Releasing Hormonebiological

Receive standard of care GnRH agonist androgen suppression therapy

Intensity-Modulated Radiation Therapyradiation

Undergo standard of care IMRT

Niraparibdrug

tablet