Radiation Omission in Patients With HER2 Overexpressing Tumors With Pathologic Complete Response
Primary Purpose
Breast Cancer, HER2-positive Breast Cancer
Status
Withdrawn
Phase
Phase 2
Locations
United States
Study Type
Interventional
Intervention
Omit breast radiation
Sponsored by

About this trial
This is an interventional treatment trial for Breast Cancer focused on measuring HER2, partial mastectomy, lumpectomy, sentinel node biopsy, axillary node dissection, pathologic complete response, breast cancer, HER2-positive
Eligibility Criteria
Inclusion Criteria:
- Female
- Age ≥ 40 years
- Patients must have a tissue diagnosis of HER2+ breast cancer
- Patients must have documented clinical T1-3, N0, M0 disease prior to receiving neo-adjuvant chemotherapy
- Patients must have undergone neo-adjuvant chemotherapy and targeted HER2 therapy prior to surgery and plan for completion of adjuvant systemic therapy as directed by their medical oncologist
- Patients must have completed partial mastectomy/lumpectomy and sentinel node biopsy or axillary node dissection.
- Patient must have documented pathologic complete response (defined as no residual invasive or in situ disease in the breast or axilla, including free of isolated tumor cells or micrometastasis)
Exclusion Criteria:
- Breastfeeding
- Prior history of breast cancer (invasive or ductal carcinoma in-situ) in either breast
- Prior adjuvant radiation therapy
- Patients with diagnosis of inflammatory breast cancer
- Patients with known BRCA mutation or other known breast cancer related deleterious mutations
Sites / Locations
- Cedars-Sinai Medical Center
Arms of the Study
Arm 1
Arm Type
Experimental
Arm Label
Omit breast radiation
Arm Description
Outcomes
Primary Outcome Measures
Feasibility of enrolling patients measured by proportion of recruited patients to participate in the trial
Measured by the number of recruited patients over the number of patients approached to participate to the trial. Feasibility will be defined as recruitment rate of greater or equal to 25% among patients who are eligible to participate in the trial.
Secondary Outcome Measures
Full Information
1. Study Identification
Unique Protocol Identification Number
NCT05371860
Brief Title
Radiation Omission in Patients With HER2 Overexpressing Tumors With Pathologic Complete Response
Official Title
Radiation Omission in Patients With HER2 Overexpressing Tumors With Pathologic
Study Type
Interventional
2. Study Status
Record Verification Date
July 2023
Overall Recruitment Status
Withdrawn
Why Stopped
PI voluntarily closed the study. Will be reopened as a national cooperative group trial.
Study Start Date
July 2023 (Anticipated)
Primary Completion Date
October 2028 (Anticipated)
Study Completion Date
October 2028 (Anticipated)
3. Sponsor/Collaborators
Responsible Party, by Official Title
Sponsor-Investigator
Name of the Sponsor
Armando Giuliano
4. Oversight
Studies a U.S. FDA-regulated Drug Product
No
Studies a U.S. FDA-regulated Device Product
No
Data Monitoring Committee
Yes
5. Study Description
Brief Summary
The purpose of this study is to evaluate the feasibility, based on recruitment rate over a 3-year period, of enrolling patients for the omission of post-operative breast radiation following breast conserving surgery and sentinel node biopsy or axillary lymph node dissection in women with HER2+ breast cancer who achieve pathologic complete response.
6. Conditions and Keywords
Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Breast Cancer, HER2-positive Breast Cancer
Keywords
HER2, partial mastectomy, lumpectomy, sentinel node biopsy, axillary node dissection, pathologic complete response, breast cancer, HER2-positive
7. Study Design
Primary Purpose
Treatment
Study Phase
Phase 2
Interventional Study Model
Single Group Assignment
Masking
None (Open Label)
Allocation
N/A
Enrollment
0 (Actual)
8. Arms, Groups, and Interventions
Arm Title
Omit breast radiation
Arm Type
Experimental
Intervention Type
Other
Intervention Name(s)
Omit breast radiation
Intervention Description
Omit breast radiation for 3 years after surgery
Primary Outcome Measure Information:
Title
Feasibility of enrolling patients measured by proportion of recruited patients to participate in the trial
Description
Measured by the number of recruited patients over the number of patients approached to participate to the trial. Feasibility will be defined as recruitment rate of greater or equal to 25% among patients who are eligible to participate in the trial.
Time Frame
At time of consent. Assessed up to 3 years
10. Eligibility
Sex
Female
Minimum Age & Unit of Time
40 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria:
Female
Age ≥ 40 years
Patients must have a tissue diagnosis of HER2+ breast cancer
Patients must have documented clinical T1-3, N0, M0 disease prior to receiving neo-adjuvant chemotherapy
Patients must have undergone neo-adjuvant chemotherapy and targeted HER2 therapy prior to surgery and plan for completion of adjuvant systemic therapy as directed by their medical oncologist
Patients must have completed partial mastectomy/lumpectomy and sentinel node biopsy or axillary node dissection.
Patient must have documented pathologic complete response (defined as no residual invasive or in situ disease in the breast or axilla, including free of isolated tumor cells or micrometastasis)
Exclusion Criteria:
Breastfeeding
Prior history of breast cancer (invasive or ductal carcinoma in-situ) in either breast
Prior adjuvant radiation therapy
Patients with diagnosis of inflammatory breast cancer
Patients with known BRCA mutation or other known breast cancer related deleterious mutations
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Armando Giuliano, MD, FACS, FRCSEd
Organizational Affiliation
Cedars-Sinai Medical Center
Official's Role
Principal Investigator
Facility Information:
Facility Name
Cedars-Sinai Medical Center
City
Los Angeles
State/Province
California
ZIP/Postal Code
90048
Country
United States
12. IPD Sharing Statement
Learn more about this trial
Radiation Omission in Patients With HER2 Overexpressing Tumors With Pathologic Complete Response
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