Radiation Therapy With or Without Trastuzumab in Treating Women With Ductal Carcinoma In Situ Who Have Undergone Lumpectomy

Completed · Phase 3

Conditions studied: Breast Ductal Carcinoma In Situ

In brief

This randomized phase III trial studies radiation therapy to see how well it works with or without trastuzumab in treating women with ductal carcinoma in situ who have undergone lumpectomy. Monoclonal antibodies, such as trastuzumab, can block tumor growth in different ways. Some block the ability of tumor cells to grow and spread. Others find tumor cells and help kill them or carry tumor-killing substances to them. Radiation therapy uses high-energy x-rays to kill tumor cells. It is not yet known whether radiation therapy is more effective with or without trastuzumab in treating ductal carcinoma in situ.

Key facts

Study ID

NCT00769379

Run by

National Cancer Institute (NCI)

People needed

2014

Starts

2008-12-10

Expected to finish

2025-06-02

Last updated by the study team

2025-06-12

Who can join

Age: 18 and older. Sex: female. Healthy volunteers: not accepted.

You may qualify if…

• The patient must have consented to participate and must have signed and dated an appropriate Institutional Review Board (IRB)-approved consent form that conforms to federal and institutional guidelines for the study treatment and for the pre-entry tumor block submission for HER2 testing and B-43 correlative studies
• Patients must have an Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1 (0 = fully active, able to carry on all pre-disease performance without restriction; 1 = restricted in physically strenuous activity but ambulatory)
• On histologic examination, the tumor must be ductal carcinoma in situ (DCIS) (patients with mixed DCIS and lobular carcinoma in situ [LCIS] are eligible)
• The DCIS must be HER2-positive as determined by central testing
• Estrogen and/or progesterone receptor status must be determined prior to randomization (patients with DCIS that is hormone receptor positive or negative are eligible)
• All DCIS must have been resected by lumpectomy
• The margins of the resected specimen must be histologically free of DCIS; for patients in whom pathologic examination demonstrates DCIS present at the line of resection, re-excision(s) may be performed to obtain clear margins (patients who require mastectomy are not eligible)
• If axillary staging is performed, nodal staging must be pN0, pN0(i-), pN0(i+) which is defined as isolated tumor cells =< 0.2 mm, regardless of the method of detection, i.e., immunohistochemistry (IHC) or hematoxylin \& eosin (H\&E), pN0(mol-), or pN0(mol+); note: axillary staging is not required
• The interval between the last surgery for excision of DCIS (lumpectomy or re-excision of lumpectomy margins) and randomization must be no more than 120 days

You may not qualify if…

• Invasive (including microinvasion staged as T1mic) breast cancer (patients with DCIS "suspicious" for microinvasion, but not confirmed, are eligible)
• Nodal staging of pN1 (including pN1mi) (note: axillary staging is not required)
• DCIS present in more than one quadrant (multicentric)
• Masses or clusters of calcification that are clinically or mammographically suspicious unless biopsied and proven to be benign (if DCIS is found, the patient is eligible if the DCIS was in the same quadrant of the ipsilateral breast and was resected with clear margins)
• Contralateral breast cancer (including DCIS)
• Whole breast irradiation administered before randomization (partial breast irradiation is prohibited)
• Prior history of breast cancer, including DCIS (patients with a history of LCIS are eligible)
• Prior anthracycline chemotherapy for any malignancy
• Cardiac disease that would preclude the use of the drugs included in the B-43 treatment regimens; this includes but is not confined to:
• Active cardiac disease:
• Angina pectoris that requires the use of anti-anginal medication;
• Ventricular arrhythmias except for benign premature ventricular contractions (PVCs) controlled by medication;
• Conduction abnormality requiring a pacemaker;
• Supraventricular and nodal arrhythmias requiring a pacemaker or not controlled with medication; and
• Clinically significant valvular disease
• History of cardiac disease:
• Myocardial infarction documented by elevated cardiac enzymes or persistent regional wall abnormalities on assessment of left ventricular (LV) function;
• Documented congestive heart failure; or
• Documented cardiomyopathy
• Uncontrolled hypertension, i.e., systolic blood pressure [BP] greater than 180 mm/Hg and/or diastolic BP greater than 100 mm/Hg (patients with hypertension that is well controlled on medication are eligible)
• Other nonmalignant systemic disease that would preclude a patient from receiving trastuzumab or radiation therapy or would prevent prolonged follow-up
• Other malignancies unless the patient is considered to be disease-free for 5 or more years prior to randomization and is deemed by her physician to be at low risk for recurrence; patients with the following cancers are eligible if diagnosed and treated within the past 5 years: carcinoma in situ of the cervix, carcinoma in situ of the colon, melanoma in situ, and basal cell and squamous cell carcinoma of the skin
• Pregnancy or lactation at the time of study entry (note: pregnancy testing according to institutional standards should be performed for women of child-bearing potential)
• Administration of any investigational agent within 30 days before study entry

Where it is running

• Providence Hospital — Mobile, Alabama, United States
• University of South Alabama Mitchell Cancer Institute — Mobile, Alabama, United States
• Alaska Breast Care and Surgery LLC — Anchorage, Alaska, United States
• Alaska Women's Cancer Care — Anchorage, Alaska, United States
• Anchorage Oncology Centre — Anchorage, Alaska, United States
• Katmai Oncology Group — Anchorage, Alaska, United States
• Providence Alaska Medical Center — Anchorage, Alaska, United States
• Fairbanks Memorial Hospital — Fairbanks, Alaska, United States
• Arizona Oncology-Deer Valley Center — Phoenix, Arizona, United States
• Arizona Center for Cancer Care - Osborn — Scottsdale, Arizona, United States
• Arizona Center for Cancer Care - Scottsdale — Scottsdale, Arizona, United States
• Virginia G Piper Cancer Care-Del Camino — Scottsdale, Arizona, United States
• Arizona Oncology Services Foundation — Scottsdale, Arizona, United States
• Arizona Oncology Associates-West Orange Grove — Tucson, Arizona, United States
• Mercy Hospital Fort Smith — Fort Smith, Arkansas, United States
• University of Arkansas for Medical Sciences — Little Rock, Arkansas, United States
• Kaiser Permanente-Anaheim — Anaheim, California, United States
• Kaiser Permanente-Deer Valley Medical Center — Antioch, California, United States
• Sutter Auburn Faith Hospital — Auburn, California, United States
• Sutter Cancer Centers Radiation Oncology Services-Auburn — Auburn, California, United States
• Kaiser Permanente-Baldwin Park — Baldwin Park, California, United States
• Kaiser Permanente-Bellflower — Bellflower, California, United States
• Alta Bates Summit Medical Center-Herrick Campus — Berkeley, California, United States
• Providence Saint Joseph Medical Center/Disney Family Cancer Center — Burbank, California, United States
• Northeast Alabama Regional Medical Center — Anniston, Alabama, United States

Full record on ClinicalTrials.gov

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