The PRECISION Trial (Profiling Early Breast Cancer for Radiotherapy Omission): A Phase II Study of Breast-Conserving Surgery Without Adjuvant Radiotherapy for Favorable-Risk Breast Cancer
Public ClinicalTrials.gov record NCT02653755. 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.
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This research study is a way of gaining new knowledge about whether patients can omit radiation treatment after undergoing a lumpectomy, also known as "breast conserving surgery". In this trial, we are attempting to identify which patients may not need radiation.
Study identification
- NCT ID
- NCT02653755
- Recruitment status
- Active, not recruiting
- Study type
- Interventional
- Phase
- Phase 2
- Enrollment
- 671 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 50 Years to 75 Years
- Sex
- Female
- 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
- Dec 14, 2015
- Primary completion
- May 14, 2030
- Completion
- May 14, 2030
- Last update posted
- Jun 28, 2026
2015 – 2030
United States locations
- U.S. sites
- 6
- U.S. states
- 4
- U.S. cities
- 4
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Johns Hopkins | Baltimore | Maryland | 21287 | — |
| Massachusetts General Hospital | Boston | Massachusetts | 02114 | — |
| Dana-Farber Cancer Institute | Boston | Massachusetts | 02115 | — |
| NYU Langone Health | New York | New York | 10016 | — |
| Memorial Sloane Kettering Cancer Center | New York | New York | 10065 | — |
| Lifespan Cancer Institute | Providence | Rhode Island | 02903 | — |
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 NCT02653755, 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 28, 2026 · Synced Sep 7, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT02653755 live on ClinicalTrials.gov.