Clinical trialNCT06954831RecruitingPhase 2Interventional

Ultra-hypofractionated Whole Breast Irradiation With Lumpectomy Cavity Boost for the Treatment of Stage I-III Breast Cancer

SponsorCity of Hope Medical CenterEnrollment82Anatomic Stage I Breast Cancer AJCC v8Anatomic Stage II Breast Cancer AJCC v8Anatomic Stage III Breast Cancer AJCC v8Breast Carcinoma

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.

Stephanie M Yoon
City of Hope Medical Center
Principal Investigator
clinicaltrials.gov ↗

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

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

United States

City of Hope at Arcadia
Arcadia, California, United States
Stephanie M. Yoon
Recruiting
City of Hope Medical Center
Duarte, California, United States
Stephanie M. Yoon
Recruiting
City of Hope at Irvine Lennar
Irvine, California, United States
Stephanie M. Yoon
Not, yet, recruiting
City of Hope Antelope Valley
Lancaster, California, United States
Stephanie M. Yoon
Recruiting
City of Hope South Pasadena
South Pasadena, California, United States
Stephanie M. Yoon
Recruiting
City of Hope at South Bay
Torrance, California, United States
Recruiting
City of Hope Upland
Upland, California, United States
Stephanie M. Yoon
Recruiting

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: 28 Aug 2025
Primary completion: 31 Jan 2028
Completion: 31 Jan 2028
Last update posted: 29 Oct 2025
Registered enrollment: 82
Registry id: NCT06954831

clinicaltrials.gov ↗

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.