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Active, not recruiting Phase 2 Interventional

Radiation, Immunotherapy and PARP Inhibitor in Triple Negative Breast Cancer

ClinicalTrials.gov ID: NCT04837209

Public ClinicalTrials.gov record NCT04837209. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 8, 2026, 5:21 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Phase II Study of NirAparib, Dostarlimab and Radiotherapy in Metastatic, PD-L1 Negative or Immunotherapy-Refractory Triple-Negative Breast Cancer (NADiR)

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

This research study is looking to see whether the combination of Dostarlimab and Niraparib plus Radiation Therapy (RT) is safe and effective in participants with metastatic triple negative breast cancer. The names of the study treatment involved in this study are: * Dostarlimab * Niraparib * Radiation Therapy (RT), which is given per standard of care.

Study identification

NCT ID
NCT04837209
Recruitment status
Active, not recruiting
Study type
Interventional
Phase
Phase 2
Enrollment
32 participants

Conditions and interventions

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Jul 20, 2021
Primary completion
Jan 31, 2027
Completion
Nov 30, 2029
Last update posted
Jun 16, 2026

2021 – 2029

United States locations

U.S. sites
4
U.S. states
4
U.S. cities
4
Facility City State ZIP Site status
Sibley Memorial Hospital Washington D.C. District of Columbia 20016
Massachusetts General Hospital Cancer Center Boston Massachusetts 02114
Duke University Medical Center Durham North Carolina 27710
University of Pennsylvania Abramson Cancer Center Philadelphia Pennsylvania 19104

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT04837209, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Jun 16, 2026 · Synced Sep 8, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT04837209 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →