Two Versus One Week Breast Radiotherapy

This study is comparing two different radiation therapy (RT) schedules for early breast cancer to see which is more effective and has fewer side effects. One group will receive whole breast RT over one week (2600 cGy in five treatments). The other group will receive whole breast RT over two weeks (3200 cGy in ten treatments) with an extra focused dose (a "concomitant boost") to the area where the tumor was. The study will look at side effects after one month, as well as breast appearance and how well the treatments control the cancer over time. We are looking for women who have had a segmental mastectomy for pT1-2 breast cancer with clear margins, and who are clinically N0 or pN0-1 or Nx or sentinel node negative. The current status of this study is unclear.

Study design
This interventional study plans to enroll 400 women to compare two different radiation therapy schedules for breast cancer.
What's involved
Not specified in the trial record.
Compensation
Not stated in the trial record.
Follow-up
The study will assess acute toxicity at 1 month and aims to evaluate local control at 2, 5, and 10 years.

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NCT06960707

Two Versus One Week Breast Radiotherapy (RT)

Recruiting
PHASE3All AgesInterventionalTreatment
Weill Medical College of Cornell University
~400 participants
Updated 2026-06-15 on ClinicalTrials.gov
What's tested:Radiation therapy - 1 weekRadiation therapy - 2 weeks

At a glance

Recruiting sites
3 of 3 listed sites are recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Rate of RT-related acute toxicity
Measured over 1 month
Breast Cancer
3 sites across 1 states
New York3
  • Silvia C. Formenti, MD · PRINCIPAL_INVESTIGATOR · Weill Medical College of Cornell University

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  • Rate of RT-related acute toxicity1 month

    The rate of RT-related acute toxicity is defined as cumulative acute toxicity events from the start of radiation treatment to 1 month follow up post RT. The toxicities will be graded by the research nurses assigned to the study according to Common Terminology Criteria for Adverse Events, version 5.0.