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Clinical trialNCT03624478CompletedPhase 2Interventional

Hypofractionated Radiation Therapy in Treating Participants With Breast Cancer Before Surgery

SponsorMayo ClinicEnrollment25Anatomic Stage I Breast Cancer AJCC v8Anatomic Stage IA Breast Cancer AJCC v8Anatomic Stage IB Breast Cancer AJCC v8Anatomic Stage IIA Breast Cancer AJCC v8Prognostic Stage I Breast Cancer AJCC v8Prognostic Stage IA Breast Cancer AJCC v8+2 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 in 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
20 Nov 2018
Primary completion
30 Jun 2021
Completion
24 Sept 2025
Last update posted
15 May 2026
Registered enrollment
25
Registry id
NCT03624478

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.