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ClinicalTrials.gov public records Last synced Sep 11, 2026, 4:28 AM EDT

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Showing 1–15 of 15 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Intervention: Niraparib Capsule Clear all
Active, not recruiting Phase 3 Interventional Results available

A Comparison of Platinum-based Therapy With TSR-042 and Niraparib Versus Standard of Care (SOC) Platinum-based Therapy as First-line Treatment of Stage III or IV Nonmucinous Epithelial Ovarian Cancer

NCT03602859
View directory record Official record
Conditions
Ovarian Neoplasms, Ovarian, Fallopian Tube and Primary Peritoneal Carcinoma
Interventions
Niraparib, Dostarlimab (TSR-042), Standard of care, Dostarlimab-Placebo, Niraparib-Placebo
Drug
Lead sponsor
Tesaro, Inc.
Industry
Eligibility
18 Years and older · Female only
Enrollment
1,400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2029
U.S. locations
65
States / cities
Anchorage, Alaska • Phoenix, Arizona • Tucson, Arizona + 55 more
Source: ClinicalTrials.gov public record
Updated Dec 30, 2025 · Synced Sep 11, 2026, 4:28 AM EDT
Completed Phase 1 Interventional

ESP1/SARC025 Global Collaboration: A Phase I Study of a Combination of the PARP Inhibitor, Niraparib and Temozolomide and/or Irinotecan Patients With Previously Treated, Incurable Ewing Sarcoma

NCT02044120
View directory record Official record
Conditions
Ewing Sarcoma
Interventions
niraparib, Temozolomide, Irinotecan
Drug
Lead sponsor
Sarcoma Alliance for Research through Collaboration
Other
Eligibility
13 Years and older
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2021
U.S. locations
4
States / cities
Los Angeles, California • Bethesda, Maryland • Ann Arbor, Michigan + 1 more
Source: ClinicalTrials.gov public record
Updated Jan 11, 2021 · Synced Sep 11, 2026, 4:28 AM EDT
Completed Phase 1 Interventional Results available

Crossover Study to Assess the Relative Bioavailability and Bioequivalence of Niraparib Tablet Compared to Niraparib Capsule

NCT03329001
View directory record Official record
Conditions
Neoplasms
Interventions
Niraparib Tablet, Niraparib Capsule
Drug
Lead sponsor
Tesaro, Inc.
Industry
Eligibility
18 Years and older
Enrollment
236 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2023
U.S. locations
16
States / cities
Encinitas, California • Fresno, California • Denver, Colorado + 13 more
Source: ClinicalTrials.gov public record
Updated Jul 24, 2024 · Synced Sep 11, 2026, 4:28 AM EDT
Terminated Phase 2 Interventional Results available

Bevacizumab and/or Niraparib in Patients With Recurrent Endometrial and/or Ovarian Cancer With ARID1A Mutation

NCT05523440
View directory record Official record
Conditions
Recurrent Endometrial Carcinoma, Recurrent Ovarian Carcinoma, ARID1A Gene Mutation
Interventions
Bevacizumab, Niraparib
Drug
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years and older · Female only
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
2
States / cities
Oklahoma City, Oklahoma • Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Jun 2, 2026 · Synced Sep 11, 2026, 4:28 AM EDT
Withdrawn Phase 1 Interventional

ZEN003694 Combined With Niraparib in Patients With Metastatic or Recurrent Solid Tumors

NCT06161493
View directory record Official record
Conditions
Ovarian Cancer, Recurrent Solid Tumors
Interventions
ZEN003694, Niraparib
Drug
Lead sponsor
Haider Mahdi
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 14, 2024 · Synced Sep 11, 2026, 4:28 AM EDT
Active, not recruiting Phase 3 Interventional Results available

A Study of Niraparib in Combination With Abiraterone Acetate and Prednisone Versus Abiraterone Acetate and Prednisone for Treatment of Participants With Metastatic Prostate Cancer

NCT03748641
View directory record Official record
Conditions
Castration-Resistant Prostatic Cancer
Interventions
Niraparib, Abiraterone Acetate, Prednisone, Placebo, New Formulation of Niraparib and Abiraterone Acetate (AA)
Drug
Lead sponsor
Janssen Research & Development, LLC
Industry
Eligibility
18 Years and older · Male only
Enrollment
765 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2027
U.S. locations
47
States / cities
Homewood, Alabama • Phoenix, Arizona • Tucson, Arizona + 40 more
Source: ClinicalTrials.gov public record
Updated Jul 30, 2026 · Synced Sep 11, 2026, 4:28 AM EDT
Recruiting Phase 2 Interventional

Genomic Biomarker-Selected Umbrella Neoadjuvant Study for High Risk Localized Prostate Cancer

NCT04812366
View directory record Official record
Conditions
Prostate Cancer
Interventions
Apalutamide 60mg Tab, Abiraterone Acetate 250mg, Prednisone 5mg Tab, Docetaxel, Niraparib 100mg Oral Capsule, Atezolizumab, Tazemetostat Pill, Capivasertib
Drug
Lead sponsor
University of British Columbia
Other
Eligibility
18 Years and older · Male only
Enrollment
315 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
5
States / cities
Sacramento, California • Boston, Massachusetts • Ann Arbor, Michigan + 2 more
Source: ClinicalTrials.gov public record
Updated Aug 13, 2026 · Synced Sep 11, 2026, 4:28 AM EDT
Completed Phase 2 Interventional Results available

An Efficacy and Safety Study of Niraparib in Men With Metastatic Castration-Resistant Prostate Cancer and DNA-Repair Anomalies

NCT02854436
View directory record Official record
Conditions
Prostatic Neoplasms
Interventions
Niraparib
Drug
Lead sponsor
Janssen Research & Development, LLC
Industry
Eligibility
18 Years and older · Male only
Enrollment
289 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2023
U.S. locations
23
States / cities
Tucson, Arizona • Los Angeles, California • Riverside, California + 20 more
Source: ClinicalTrials.gov public record
Updated Dec 21, 2025 · Synced Sep 11, 2026, 4:28 AM EDT
Completed Phase 2 Interventional

Trial of Maintenance With Niraparib- Uterine Serous Carcinoma

NCT04080284
View directory record Official record
Conditions
Endometrial Cancer, Papillary Serous Endometrial Carcinoma, Uterine Serous Carcinoma, Endometrial Carcinoma, Cancer of the Endometrium
Interventions
Niraparib
Drug
Lead sponsor
Northwell Health
Other
Eligibility
18 Years and older · Female only
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
6
States / cities
New Brunswick, New Jersey • Newark, New Jersey • Bay Shore, New York + 3 more
Source: ClinicalTrials.gov public record
Updated Aug 18, 2025 · Synced Sep 11, 2026, 4:28 AM EDT
Terminated Phase 3 Interventional Results available

A Phase III Trial of Niraparib Versus Physician's Choice in HER2 Negative, Germline BRCA Mutation-positive Breast Cancer Patients

NCT01905592
View directory record Official record
Conditions
Neoplasms, Breast, Carcinoma of Breast, Human Epidermal Growth Factor 2 Negative Carcinoma of Breast, BRCA1 Gene Mutation, BRCA2 Gene Mutation, Ovarian Neoplasms
Interventions
niraparib, Physician's choice
Drug
Lead sponsor
Tesaro, Inc.
Industry
Eligibility
18 Years and older
Enrollment
216 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2021
U.S. locations
25
States / cities
Tucson, Arizona • Los Angeles, California • Fort Myers, Florida + 20 more
Source: ClinicalTrials.gov public record
Updated Nov 14, 2022 · Synced Sep 11, 2026, 4:28 AM EDT
Completed Phase 2 Interventional Results available

Effects of Single Agent Niraparib and Niraparib Plus Programmed Cell Death-1 (PD-1) Inhibitors in Non-Small Cell Lung Cancer Participants

NCT03308942
View directory record Official record
Conditions
Neoplasms
Interventions
Niraparib, Pembrolizumab, TSR-042 (Dostarlimab)
Drug · Biological
Lead sponsor
Tesaro, Inc.
Industry
Eligibility
18 Years and older
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
16
States / cities
Whittier, Alaska • Port Saint Lucie, Florida • Atlanta, Georgia + 13 more
Source: ClinicalTrials.gov public record
Updated Oct 15, 2023 · Synced Sep 11, 2026, 4:28 AM EDT
Active, not recruiting Phase 2 Interventional

Niraparib in Tumors Metastatic to the CNS

NCT04992013
View directory record Official record
Conditions
Metastatic Cancer, Central Nervous System Cancer
Interventions
Niraparib
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 20, 2026 · Synced Sep 11, 2026, 4:28 AM EDT
Active, not recruiting Phase 2 Interventional

Radiation, Immunotherapy and PARP Inhibitor in Triple Negative Breast Cancer

NCT04837209
View directory record Official record
Conditions
Breast Cancer, Triple Negative Breast Cancer
Interventions
Niraparib, Dostarlimab, Radiation therapy
Drug · Radiation
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2029
U.S. locations
4
States / cities
Washington D.C., District of Columbia • Boston, Massachusetts • Durham, North Carolina + 1 more
Source: ClinicalTrials.gov public record
Updated Jun 16, 2026 · Synced Sep 11, 2026, 4:28 AM EDT
Recruiting Phase 2 Interventional

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

NCT04641247
View directory record Official record
Conditions
Ovarian Neoplasms, Breast Neoplasms
Interventions
Niraparib
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
13
States / cities
Tucson, Arizona • Encinitas, California • Los Angeles, California + 10 more
Source: ClinicalTrials.gov public record
Updated Jun 23, 2026 · Synced Sep 11, 2026, 4:28 AM EDT
Active, not recruiting Phase 2 Interventional

Niraparib/TTFields in GBM

NCT04221503
View directory record Official record
Conditions
Glioblastoma, Recurrent Glioblastoma, GBM
Interventions
Niraparib, Optune, Planned surgical resection
Drug · Device · Procedure
Lead sponsor
Abramson Cancer Center at Penn Medicine
Other
Eligibility
22 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 7, 2026 · Synced Sep 11, 2026, 4:28 AM EDT