Testing Olaparib Either Alone or in Combination With Atezolizumab in BRCA Mutant Non-HER2-positive Breast Cancer
Public ClinicalTrials.gov record NCT02849496. 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.
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 Open-Label, Randomized Study of PARP Inhibition (Olaparib) Either Alone or in Combination With Anti-PD-L1 Therapy (Atezolizumab; MPDL3280A) in Homologous DNA Repair (HDR) Deficient, Locally Advanced or Metastatic Non-HER2-Positive Breast Cancer
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This randomized phase II trial studies how well olaparib with or without atezolizumab work in treating patients with non-HER2-positive breast cancer that has spread to nearby tissue or lymph nodes (locally advanced), that cannot be removed by surgery (unresectable), or that has spread from where it first started (primary site) to other places in the body (metastatic). Olaparib is an inhibitor of PARP, an enzyme that helps repair deoxyribonucleic acid (DNA) when it becomes damaged. Blocking PARP may help keep cancer cells from repairing their damaged DNA, causing them to die. PARP inhibitors are a type of targeted therapy. Immunotherapy with monoclonal antibodies, such as atezolizumab, may help the body's immune system attack the tumor, and may interfere with the ability of tumor cells to grow and spread. It is not known whether giving olaparib with or without atezolizumab will work better in patients with non-HER2-positive breast cancer.
Study identification
- NCT ID
- NCT02849496
- Recruitment status
- Active, not recruiting
- Study type
- Interventional
- Phase
- Phase 2
- Enrollment
- 89 participants
Conditions and interventions
Conditions
Interventions
- Atezolizumab Drug
- Biopsy Procedure Procedure
- Biospecimen Collection Procedure
- Bone Marrow Aspiration Procedure
- Bone Marrow Biopsy Procedure
- Bone Scan Procedure
- Computed Tomography Procedure
- Magnetic Resonance Imaging Procedure
- Olaparib Drug
- Positron Emission Tomography Procedure
- Questionnaire Administration Other
- X-Ray Imaging Procedure
Drug · Procedure · Other
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
- Mar 30, 2017 (Actual)
- Primary completion
- Jun 10, 2026 (Actual)
- Completion
- Aug 26, 2027 (Estimated)
- Last update posted
- Aug 28, 2026
2017 – 2027
United States locations
- U.S. sites
- 58
- U.S. states
- 21
- U.S. cities
- 46
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Mayo Clinic Hospital in Arizona | Phoenix | Arizona | 85054 | — |
| Mayo Clinic in Arizona | Scottsdale | Arizona | 85259 | — |
| UC San Diego Moores Cancer Center | La Jolla | California | 92093 | — |
| University of California Davis Comprehensive Cancer Center | Sacramento | California | 95817 | — |
| UC San Diego Medical Center - Hillcrest | San Diego | California | 92103 | — |
| UCSF Medical Center-Mount Zion | San Francisco | California | 94115 | — |
| UCHealth University of Colorado Hospital | Aurora | Colorado | 80045 | — |
| Smilow Cancer Hospital-Derby Care Center | Derby | Connecticut | 06418 | — |
| Smilow Cancer Hospital Care Center-Fairfield | Fairfield | Connecticut | 06824 | — |
| Smilow Cancer Hospital Care Center - Guilford | Guilford | Connecticut | 06437 | — |
| Smilow Cancer Hospital Care Center at Saint Francis | Hartford | Connecticut | 06105 | — |
| Smilow Cancer Center/Yale-New Haven Hospital | New Haven | Connecticut | 06510 | — |
| Yale University | New Haven | Connecticut | 06520 | — |
| Smilow Cancer Hospital-Orange Care Center | Orange | Connecticut | 06477 | — |
| Smilow Cancer Hospital-Torrington Care Center | Torrington | Connecticut | 06790 | — |
| Smilow Cancer Hospital Care Center-Trumbull | Trumbull | Connecticut | 06611 | — |
| Smilow Cancer Hospital-Waterbury Care Center | Waterbury | Connecticut | 06708 | — |
| Mayo Clinic in Florida | Jacksonville | Florida | 32224-9980 | — |
| Moffitt Cancer Center-International Plaza | Tampa | Florida | 33607 | — |
| Moffitt Cancer Center | Tampa | Florida | 33612 | — |
| University of Chicago Comprehensive Cancer Center | Chicago | Illinois | 60637 | — |
| UC Comprehensive Cancer Center at Silver Cross | New Lenox | Illinois | 60451 | — |
| University of Chicago Medicine-Orland Park | Orland Park | Illinois | 60462 | — |
| University of Kansas Clinical Research Center | Fairway | Kansas | 66205 | — |
| Johns Hopkins University/Sidney Kimmel Cancer Center | Baltimore | Maryland | 21287 | — |
| Massachusetts General Hospital Cancer Center | Boston | Massachusetts | 02114 | — |
| Brigham and Women's Hospital | Boston | Massachusetts | 02115 | — |
| Beth Israel Deaconess Medical Center | Boston | Massachusetts | 02215 | — |
| Dana-Farber Cancer Institute | Boston | Massachusetts | 02215 | — |
| Wayne State University/Karmanos Cancer Institute | Detroit | Michigan | 48201 | — |
| Weisberg Cancer Treatment Center | Farmington Hills | Michigan | 48334 | — |
| Mayo Clinic in Rochester | Rochester | Minnesota | 55905 | — |
| Siteman Cancer Center at Saint Peters Hospital | City of Saint Peters | Missouri | 63376 | — |
| Siteman Cancer Center at West County Hospital | Creve Coeur | Missouri | 63141 | — |
| Washington University School of Medicine | St Louis | Missouri | 63110 | — |
| Siteman Cancer Center-South County | St Louis | Missouri | 63129 | — |
| Siteman Cancer Center at Christian Hospital | St Louis | Missouri | 63136 | — |
| Nebraska Medicine-Bellevue | Bellevue | Nebraska | 68123 | — |
| Nebraska Medicine-Village Pointe | Omaha | Nebraska | 68118 | — |
| University of Nebraska Medical Center | Omaha | Nebraska | 68198 | — |
| Rutgers Cancer Institute of New Jersey | New Brunswick | New Jersey | 08903 | — |
| NYP/Columbia University Medical Center/Herbert Irving Comprehensive Cancer Center | New York | New York | 10032 | — |
| Montefiore Medical Center-Einstein Campus | The Bronx | New York | 10461 | — |
| Montefiore Medical Center-Weiler Hospital | The Bronx | New York | 10461 | — |
| Montefiore Medical Center - Moses Campus | The Bronx | New York | 10467 | — |
| UNC Lineberger Comprehensive Cancer Center | Chapel Hill | North Carolina | 27599 | — |
| Duke University Medical Center | Durham | North Carolina | 27710 | — |
| Case Western Reserve University | Cleveland | Ohio | 44106 | — |
| Ohio State University Comprehensive Cancer Center | Columbus | Ohio | 43210 | — |
| UPMC Hillman Cancer Center | Pittsburgh | Pennsylvania | 15232 | — |
| Vanderbilt Breast Center at One Hundred Oaks | Nashville | Tennessee | 37204 | — |
| Vanderbilt University/Ingram Cancer Center | Nashville | Tennessee | 37232 | — |
| UT Southwestern/Simmons Cancer Center-Dallas | Dallas | Texas | 75390 | — |
| Baylor College of Medicine/Dan L Duncan Comprehensive Cancer Center | Houston | Texas | 77030 | — |
| Farmington Health Center | Farmington | Utah | 84025 | — |
| University of Utah Sugarhouse Health Center | Salt Lake City | Utah | 84106 | — |
| Huntsman Cancer Institute/University of Utah | Salt Lake City | Utah | 84112 | — |
| South Jordan Health Center | South Jordan | Utah | 84009 | — |
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 NCT02849496, 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 Aug 28, 2026 · Synced Oct 21, 2026
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Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT02849496 live on ClinicalTrials.gov.