- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00611624
Mammosite Breast Brachytherapy Optimization in the Treatment of Breast Carcinoma (Mammosite)
April 10, 2017 updated by: Yale University
A Phase II Trial of Mammosite Breast Brachytherapy Optimization in the Treatment of Stage 0, I and II Breast Carcinoma
The purpose of this study is to determine if Mammosite Catheter optimization using multiple dwell position delivery decreases skin toxicity over historically reported skin toxicity with the single dwell delivery method.
Study Overview
Status
Completed
Conditions
Intervention / Treatment
Study Type
Interventional
Enrollment (Actual)
28
Phase
- Not Applicable
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
-
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Connecticut
-
New Haven, Connecticut, United States, 06520
- Yale University School Of Medicine
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-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
50 years and older (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
Female
Description
Inclusion Criteria:
- The patient must consent to be in the study and must have a signed an approved consent form conforming with institutional guidelines.
- Patient must be > 50 years old.
- The patient should have a life expectancy of at least two years.
- The patient must have stage 0 , I , or II breast cancer. If stage IIA, the tumor size must be 3 cm or less and the patients must be node negative.
- On histological examination, the tumor must be DCIS or invasive adenocarcinoma of the breast.
- Surgical treatment of the breast must have been lumpectomy. The margins of the resected specimen must be histologically free of tumor (>2mm, DCIS and invasive). Re-excision of surgical margins is permitted.
- Gross disease must be unifocal with pathologic (invasive and/or DCIS) tumor size 3 cm or less. (Patients with microscopic multifocality are eligible as long as total pathologic tumor size is 3 cm or less.)
- Patients with invasive breast cancer are required to have axillary staging which can include sentinel node biopsy alone (if negative), sentinel node biopsy followed by axillary dissection or sampling with a minimum total of 6 axillary nodes or axillary dissection alone (with a minimum of 6 axillary nodes). (Axillary staging is NOT required for patients with DCIS.)
- The patient must have the MammoSite catheter placed within 4 weeks or 28 days of the final surgery for their breast cancer (lumpectomy, re-excision of margins, or axillary staging procedure). Placement of a spacer for the MammoSite catheter is permitted at their final surgery.
- Patients with a history of non-ipsilateral breast malignancies are eligible if they have been disease-free for 2 or more years prior to randomization. Patients with the following cancers are eligible even if diagnosed and treated within the past 2 years: carcinoma in situ of the cervix, colon, melanoma in situ, and basal cell and squamous cell carcinoma of the skin. Patients with a prior diagnosis of ipsilateral breast cancer are ineligible.
- Chemotherapy is permitted if planned for >2 weeks after removal of Mammosite catheter.
- Patient must be ineligible or have refused enrollment on the randomized trial RTOG (Radiation Therapy Oncology Group) 0413.
Exclusion Criteria:
- Men are not eligible for this study.
- T2 (>3.0 cm), T3, node positive, stage III or IV breast cancer.
- Any positive axillary nodes.
- Palpable or radiographically suspicious ipsilateral or contralateral axillary, supraclavicular, infraclavicular or internal mammary nodes, unless biopsy proven to be negative for tumor.
- Suspicious microcalcifications, densities or palpable abnormalities in either breast unless biopsy proven to be benign.
- Non-epithelial breast malignancies such as sarcoma or lymphoma.
- Proven multicentric carcinoma in more than one quadrant or separated by more than 3 centimeters.
- Paget's disease of the nipple.
- History of invasive breast cancer or DCIS in the same breast.
- Surgical margins that cannot be microscopically assessed or are less then 2 mm.
- Collagen vascular disease, specifically dermatomyositis with a creatine phosphokinase (CPK) level above normal or with an active skin rash, systemic lupus erythematosis or scleroderma.
- Pregnancy or lactation at the time of proposed radiation. Women of reproductive potential must agree to use an effective non-hormonal method of contraception during therapy.
- Psychiatric or addictive disorders or other conditions that, in the opinion of the investigator, would preclude the patient from meeting the study requirements.
- Patients with coexisting medical conditions in whom life expectancy is < 2 years.
- Patients with skin involvement, regardless of tumor size.
- Patients for whom treatment with the MammoSite catheter is not feasible, such as those with too little breast tissue between the skin and the catheter (as determined by distance of dose calculations).
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Five Days of Mammosite Therapy
Five Days of Mammosite Therapy (Radiotherapy)
|
Treatment using MammoSite will begin within five days of placement of the catheter.
Only high dose rate (HDR) with Ir-192 treatment is allowed.
The balloon will remain inflated throughout the treatment course.
A total of 34 Gy will be prescribed to an approximate 1 cm radial distance from the balloon surface.
Two fractions per day, each of 3.4 Gy, separated by at least 6 hours, given on 5 treatment days (over a period of 5 to 10 days), will sum to 10 fractions and 34 Gy.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Skin Toxicity the First Year Following Treatment With the Multiple Dwell Mammosite Delivery Method.
Time Frame: one year
|
Evaluation of skin toxicity the first year following treatment with the multiple dwell Mammosite delivery method.
The number of participants with a grade 2 skin toxicity (or higher) at 1 year follow up are reported.
Radiation Therapy Oncology Group (RTOG) and the European organization for research and treatment of cancer (EORTC) Late Radiation Morbidity Scoring Schema were used to assess toxicity.
|
one year
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Information of Treatment Parameters in Order to Define Parameters Most Predictive of Skin Toxicity
Time Frame: Upon completion of study
|
These data were not collected and were not summarized in this study.
Results are not available.
|
Upon completion of study
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Investigators
- Principal Investigator: Joanne Weidhaas, M.D., Ph.D., Yale University
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start
May 1, 2006
Primary Completion (Actual)
April 1, 2013
Study Completion (Actual)
April 1, 2013
Study Registration Dates
First Submitted
January 29, 2008
First Submitted That Met QC Criteria
January 29, 2008
First Posted (Estimate)
February 11, 2008
Study Record Updates
Last Update Posted (Actual)
May 16, 2017
Last Update Submitted That Met QC Criteria
April 10, 2017
Last Verified
February 1, 2017
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- 0601000957
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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