Outcomes and Cosmesis With Whole Breast Irradiation and Boost

Patient-Reported Outcomes and Cosmesis Following Five Fraction Whole Breast Irradiation With Simultaneous Integrated Boost

This study is being done to evaluate cosmetic, patient-reported outcome measures (PROMs), and toxicities for women undergoing ultra-short whole breast irradiation (WBI) therapy with simultaneous integrated boost (SIB). 50 participants will be on study for up to 60 months.

Study Overview

• Status: Active, not recruiting
• Conditions: Early-stage Breast Cancer
• Intervention / Treatment: Radiation: Radiation Therapy

Detailed Description

The study population will consist of 50 participants with non-metastatic, early-stage invasive breast cancer or ductal carcinoma in situ (DCIS). Eligible patients will include those with a biopsy proven invasive breast cancer or DCIS, greater than or equal to 18 years of age, undergoing breast conserving surgery and adjuvant radiation therapy at UW Health with an indication for WBI with tumor bed boost. Selection need for boost and radiation treatment field design and pre-tx imaging are at the discretion of the treating provider.

Accrual will occur over 5 years at UW Health. Participants will complete 5 treatment visits and 7 study visits over the course of approximately 5.5 years. Research-related outcome measures - MD assessments (e.g., cosmesis) PROMs, and AEs -- will be assessed prior to treatment start, at the 6-week follow-up visit, as well as at 12-, 24-, 36-, 48- and 60-month follow-up visits. Study participation ends after completion of the 60-month follow-up visit.

Objective

• To assess two-year cosmetic outcomes in patients treated with ultra-short WBI with a SIB.

Secondary Objectives

• To assess PROMs via BREAST-Q in patients treated with ultra-short WBI with SIB.
• To assess acute toxicities in patients treated with ultra-short WBI with SIB.
• To assess late toxicities in patients treated with ultra-short WBI with SIB.
• To assess ipsilateral breast tumor recurrence in patients treated with ultra-short WBI with SIB.
• To assess overall survival (OS) in patients treated with ultra-short WBI with SIB.

• Study Type: Interventional
• Enrollment (Actual): 50
• Phase: Not Applicable

Contacts and Locations

Study Locations

• United States
  • Wisconsin
    • Madison, Wisconsin, United States, 53792
      • UW Carbone Cancer Center

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult; Older Adult
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

• Ability to understand and the willingness to sign a written informed consent document
• Histologically confirmed early stage (stage T1-T2) invasive carcinoma of the breast or DCIS
• Breast conserving surgery with negative margins and negative nodes (surgical axillary staging not mandatory), stage N0 or Nx
• Treatment plan should include breast conserving surgery and adjuvant whole breast irradiation (WBI) therapy delivered with 3D-CRT or IMRT techniques
• Treatment plan includes breast tumor bed boost
• Willingness to comply with all study procedures and be available for the duration of the study

Exclusion Criteria:

• Mastectomy of ipsilateral breast
• Lack of histologic diagnosis
• Histologic involvement of the axillary or regional nodes or metastatic disease
• Accelerated partial breast irradiation treatment plan
• Previous history of non-breast malignancy diagnosed in the past 5 years except for basal or squamous cell cancer of the skin
• Previous history of chest radiation therapy
• Previous history of ipsilateral breast cancer
• Concurrent cytotoxic chemotherapy
• Active connective tissue disease including scleroderma
• Inability or unwillingness to return for required follow up visit

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: WBI with SIB	Radiation: Radiation Therapy; WBI with SIB delivered over 5 fractions

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Harvard Breast Cosmesis Scale Score	4-point scale where 1 is excellent, 2 is good, 3 is fair, and 4 is poor.	up to 2 years post-treatment (treatment ends up to 5 weeks on study)

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Change in BREAST-Q Score	The BREAST-Q questionnaire is scored from 0-100 where higher scores indicate better outcomes in each of 5 domains: Psychosocial Well-Being, Sexual Well-Being, Cancer Worry, Fatigue, and Impact on Work.	baseline, 6 weeks post-RT, 12 months post-RT, 24 months post-RT, 60 months post-RT (treatment ends up to 5 weeks on study)
Incidence of Acute Toxicities	Acute toxicities (including breast dermatitis, induration) will be assessed after final treatment within 90 days of radiation therapy completion using Common Terminology Criteria for Adverse Events (CTCAE) version 5.0.	up to 90 days post-RT (treatment ends up to 5 weeks on study)
Incidence of Late Toxicities	Late toxicities (including induration, fibrosis, shrinkage, and telangiectasia) will be assessed greater than 90 days of radiation therapy completion using CTCAE version 5.0	up to 60 months on study
Ipsilateral Breast Tumor Recurrence-Free Survival	Kaplan-Meier curves will be used to estimate ipsilateral breast tumor recurrence-free survival.	up to 60 months on study
Overall Survival (OS)	Kaplan-Meier curves will be used to estimate OS.	up to 60 months on study

Collaborators and Investigators

• Sponsor: University of Wisconsin, Madison
• Investigators: Principal Investigator: Jessica Schuster, MD, UW Carbone Cancer Center

Study record dates

Study Major Dates

• Study Start (Actual): April 17, 2024
• Primary Completion (Estimated): September 1, 2028
• Study Completion (Estimated): September 1, 2031

Study Registration Dates

• First Submitted: February 28, 2024
• First Submitted That Met QC Criteria: February 28, 2024
• First Posted (Actual): March 6, 2024

Study Record Updates

• Last Update Posted (Actual): July 24, 2026
• Last Update Submitted That Met QC Criteria: July 23, 2026
• Last Verified: July 1, 2026

More Information

Terms related to this study

• Keywords: Cosmesis; Simultaneous Integrated Boost; Whole Breast Irradiation
• Additional Relevant MeSH Terms: Neoplasms by Site; Neoplasms; Skin Diseases; Breast Diseases; Skin and Connective Tissue Diseases; Breast Neoplasms; Therapeutics; Radiotherapy
• Other Study ID Numbers: 2023-1724; A533300 (Other Identifier: UW Madison); UW23114 (Registry Identifier: UWCCC OnCore ID); Protocol Version 11/14/2024 (Other Identifier: UW Madison); NCI-2024-01891 (Registry Identifier: NCI Trial ID)

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: Yes