Long-term Extension Study of Niraparib Treatment for Adults Who Completed a Previous GlaxoSmithKlineTESARO Niraparib Study and Are Benefiting from Continued Therapy

What this Trial Is About

This research aims to provide continued access to niraparib and to further assess its long-term safety in participants with ovarian or breast neoplasms who are currently receiving niraparib treatment within previous GlaxoSmithKlineTESARO-sponsored studies. It focuses on participants who have completed earlier studies where the primary objectives were met and are judged by their doctors to still benefit from niraparib. The study is a phase 2, open-label extension trial designed to monitor treatment continuation and safety over time. Participants will receive niraparib once daily by mouth, following the same dose and schedule as in their previous parent study. Treatment is organized in 90-day cycles and will continue until disease progression, unacceptable side effects, new anticancer therapy unrelated to the parent study, withdrawal, or other reasons for discontinuation occur. The dosing regimen mirrors what was assigned in the prior study, ensuring consistency for each participant. During the study, participants will have regular evaluations to monitor safety and health status for up to five years. These assessments include tracking adverse events, serious side effects, and specific safety concerns, as well as monitoring physical exams, vital signs, blood tests, and medication use. Participants must comply with scheduled visits and treatments while using effective contraception if of childbearing potential. The study duration and follow-up are designed to gather detailed long-term safety information on niraparib treatment.

A Long-term Treatment Extension Study of Niraparib in Participants Who Completed a Prior GlaxoSmithKline/TESARO-sponsored Niraparib Study