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NCT Number: NCT04641247

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

Recruiting

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Key information

Conditions

Ovarian Neoplasms Adnexal Diseases Breast Diseases Breast Neoplasms Endocrine Gland Neoplasms Endocrine System Diseases Female Urogenital Diseases Female Urogenital Diseases and Pregnancy Complications Genital Diseases Genital Diseases, Female Genital Neoplasms, Female Gonadal Disorders Neoplasms Neoplasms by Site Ovarian Diseases Skin Diseases Skin and Connective Tissue Diseases Urogenital Diseases Urogenital Neoplasms

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 2

Primary location

GSK Investigational Site, Graz, Austria

Loading trial locations.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Participant is able to understand the study procedures and agrees to participate in the study by providing written informed consent.
  • Participant is willing and able to comply with scheduled visits, treatment plans, and any other study procedures.
  • Participant is currently receiving treatment with niraparib (as monotherapy or in combination) in a GlaxoSmithKline/TESARO-sponsored study that has fulfilled the requirements for the primary objective.
  • Participant is currently benefiting from treatment with niraparib as assessed by the Investigator according to the parent study protocol requirements.
  • Participants of childbearing potential who are sexually active and their partners must agree to the use of an effective form of contraception throughout their participation during study treatment through 180 days after last dose of study drug.

Exclusion criteria

  • Participant has been permanently discontinued from niraparib treatment in the parent study for any reason.
  • Participant currently has unresolved toxicities for which niraparib dosing has been interrupted in the parent study. Participants meeting all other eligibility criteria may be enrolled once toxicities have resolved to allow niraparib treatment to resume.
  • Participant is pregnant or is expecting to conceive children while receiving study drug or for up to 180 days after the last dose of study drug. Participant is breastfeeding or is expecting to breastfeed within 30 days of receiving the final dose of study drug (women should not breastfeed or store breastmilk for use during niraparib treatment and for 30 days after receiving the final dose of study treatment).

Treatment and study plan

Niraparib

Drug

Niraparib tablets or capsules will be given once a day via the oral route.

Primary outcomes

  1. Number of participants with adverse events (AEs), serious adverse events (SAEs) and AEs of special interest (AESI)

    Time frame: Up to 5 years

    AEs, SAEs and AESI will be collected.

  2. Number of participants with clinically significant changes in Eastern Co-operative Oncology Group (ECOG) performance status

    Time frame: Up to 5 years

    The performance status will be assessed using ECOG scale, where Grade 0 (fully active), Grade 1 (restricted in physically strenuous activity), Grade 2 (ambulatory and capable of all self-care), Grade 3 (capable of only limited self-care) and Grade 4 (completely disabled). Number of participants with clinically significant changes in ECOG performance status will be summarized.

  3. Number of participants with clinically significant changes in hematology and clinical chemistry parameters

    Time frame: Up to 5 years

    Blood samples will be collected for the analysis of hematology and clinical chemistry parameters.

  4. Number of participants with clinically significant changes in vital signs

    Time frame: Up to 5 years

    Number of participants with clinically significant changes in vital signs will be assessed.

  5. Number of participants with clinically significant changes in physical examination

    Time frame: Up to 5 years

    Number of participants with clinically significant changes in physical examination will be assessed.

  6. Number of participants with use of concomitant medications

    Time frame: Up to 5 years

    Number of participants using concomitant medications will be assessed.

Study contacts

Contact information is provided by the study sponsor or research team.

EU GSK Clinical Trials Call Center

CONTACT

[email protected]

+44 (0) 20 89904466

US GSK Clinical Trials Call Center

CONTACT

[email protected]

877-379-3718

Sponsors and collaborators

Lead sponsor

GlaxoSmithKline

Industry

Registry information

Official study title

An Open-Label, Multicenter, Long-term Treatment Extension Study in Subjects Who Have Completed a Prior GlaxoSmithKline/TESARO-Sponsored Niraparib Study and Are Judged by the Investigator to Benefit From Continued Treatment With Niraparib

Important dates

Study start
2021
Primary completion
2026
Study completion
2026
First posted
Nov 23, 2020
Registry last updated
Jun 24, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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