Clinical Trial

Regional Radiotherapy in Biomarker Low-Risk Node Positive and T3N0 Breast Cancer

Study acronym: TAILOR RT
Active, Not Recruiting Phase 3
View on ClinicalTrials.gov →
Summary
The purpose of this study is to compare the effects on low risk breast cancer receiving usual care that includes regional radiation therapy, with receiving no regional radiation therapy. Researchers want to see if not giving this type of radiation treatment works as well at preventing breast cancer from coming back.
Protocol Amendment History 2 changes
critical Trial status changed: Recruiting → Active, Not Recruiting 2026-07-02
notable Trial sites expanded: 475 -> 483 locations 2026-04-15
Trial Details
NCT Number NCT03488693
Lead Sponsor Canadian Cancer Trials Group
Collaborators: Alliance for Clinical Trials in Oncology, Eastern Cooperative Oncology Group, NRG Oncology, SWOG Cancer Research Network
Conditions Breast Cancer
Enrollment 2,138 participants
Start Date 2018-10-16
Primary Completion 2027-09-01 (estimated)
Study Completion 2027-12-30 (estimated)
Updated on ClinicalTrials.gov 2026-07-01