Radiation Therapy in Treating Women With Invasive Breast Cancer
|The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.|
|ClinicalTrials.gov Identifier: NCT00301041|
Recruitment Status : Completed
First Posted : March 10, 2006
Last Update Posted : August 21, 2013
RATIONALE: Radiation therapy uses high-energy x-rays to kill tumor cells. Giving radiation therapy in different ways may kill more tumor cells.
PURPOSE: This randomized clinical trial is studying the side effects and best way to give radiation therapy and to see how well it works in treating patients with invasive breast cancer.
|Condition or disease||Intervention/treatment||Phase|
|Breast Cancer||Other: laboratory biomarker analysis Procedure: adjuvant therapy Radiation: radiation therapy||Early Phase 1|
- Compare the ratio between post- and pre-treatment plasma transforming growth factor-beta 1 (TGF-β) in women with invasive breast cancer undergoing hypofractionated radiotherapy vs standard-fractionated external-beam radiotherapy.
- Establish longitudinal serum and plasma biorepository for retrospective evaluation of TGF-β and other biomarkers with special relevance to radiation response.
- Correlate pre-treatment plasma TGF-β levels with clinical fibrosis development.
OUTLINE: This is a randomized study. Patients are randomized to 1 of 2 treatment arms.
- Arm I (hypofractionated radiotherapy): Patients undergo external-beam radiotherapy once daily 5 days a week for up to 3.5 weeks (16 fractions total).
- Arm II (standard fractionated radiotherapy): Patients undergo radiotherapy as in arm I at a lower dose for up to 5 weeks (25 fractions total).
After completion of study treatment, patients are followed every 6 months for 2 years and then annually for 3 years.
PROJECTED ACCRUAL: A total of 100 patients will be accrued for this study.
|Study Type :||Interventional (Clinical Trial)|
|Actual Enrollment :||20 participants|
|Intervention Model:||Parallel Assignment|
|Masking:||None (Open Label)|
|Official Title:||The Relationship Between Plasma Transforming Growth Factor-beta 1 (TGF-β) and Fractionation in Radiotherapy for Breast Cancer: A Randomized Study|
|Study Start Date :||April 2004|
|Actual Primary Completion Date :||May 2004|
|Actual Study Completion Date :||May 2004|
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00301041
|United States, California|
|UCSF Helen Diller Family Comprehensive Cancer Center|
|San Francisco, California, United States, 94115|
|Principal Investigator:||Catherine C. Park, MD||University of California, San Francisco|