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Clinical trialNCT03324802CompletedPhase 3Interventional

Hypofractionated Radiation Therapy in Preventing Recurrence in Patients With Breast Cancer After Surgery

SponsorMayo ClinicEnrollment107Stage I Breast Cancer AJCC v7Stage IA Breast Cancer AJCC v7Stage IB Breast Cancer AJCC v7Stage II Breast Cancer AJCC v6 and v7Stage IIA Breast Cancer AJCC v6 and v7Stage IIB Breast Cancer AJCC v6 and v7+1 more conditions
View the registry record on ClinicalTrials.gov

Summary

The registered summary isn't in our current data snapshot. Read it on the ClinicalTrials.gov record ↗. Why? →

Investigators

The overall officials registered on this study. Names that resolve to a findmyKOL profile link to it; the rest are shown as registered.

A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

3 registered facilities, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.

United States
  • Mayo Clinic in Arizona

    Scottsdale, Arizona, United States

  • Mayo Clinic Florida

    Jacksonville, Florida, United States

  • Mayo Clinic

    Rochester, Minnesota, United States

Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.

Drugs studied

No drug or biological interventions are in our data for this study — it may test a procedure, device or behavioral intervention, or the intervention list isn't in our current snapshot. See the registry record ↗. Why? →

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start
7 Feb 2018
Primary completion
31 Jan 2022
Completion
28 Aug 2023
Last update posted
2 May 2024
Registered enrollment
107
Registry id
NCT03324802

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 12 Jul 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.