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Study identifier: NCT04641247 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

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

Condition: Ovarian Neoplasms · Breast Neoplasms  ·  Sponsor: GlaxoSmithKline

PhasePhase 2
Planned participants37
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNo

About this study

This is a global extension study to provide continued access to niraparib and further characterize the long-term safety of niraparib treatment in participants who are currently receiving treatment with niraparib within GlaxoSmithKline/TESARO-sponsored studies (NCT01847274, NCT02354586, NCT01905592, NCT03308942, NCT02657889) that has fulfilled the requirements for the primary objective.

This description comes directly from the study's public registry record.

Talk to the study team

US GSK Clinical Trials Call Center  ·  877-379-3718  ·  GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Center  ·  +44 (0) 20 89904466  ·  GSKClinicalSupportHD@gsk.com

Always discuss trial participation with your own doctor first.

Locations (25)

GSK Investigational SiteTucson, Arizona, United StatesCompleted
GSK Investigational SiteEncinitas, California, United StatesRecruiting
GSK Investigational SiteLos Angeles, California, United StatesRecruiting
GSK Investigational SiteWhittier, California, United StatesCompleted
GSK Investigational SiteJacksonville, Florida, United StatesCompleted
GSK Investigational SiteAtlanta, Georgia, United StatesRecruiting
GSK Investigational SiteHarvey, Illinois, United StatesRecruiting
GSK Investigational SiteBoston, Massachusetts, United StatesRecruiting
GSK Investigational SiteGrand Rapids, Michigan, United StatesRecruiting
GSK Investigational SiteMorristown, New Jersey, United StatesRecruiting
GSK Investigational SiteLake Success, New York, United StatesRecruiting
GSK Investigational SiteCharlotte, North Carolina, United StatesRecruiting

+ 13 more locations — full list on the registry record.

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Source record: clinicaltrials.gov/study/NCT04641247