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Radiation Therapy in Treating Women With Invasive Breast Cancer

This study has been completed.
National Cancer Institute (NCI)
Information provided by (Responsible Party):
University of California, San Francisco Identifier:
First received: March 8, 2006
Last updated: August 19, 2013
Last verified: August 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 Intervention Phase
Breast Cancer Other: laboratory biomarker analysis Procedure: adjuvant therapy Radiation: radiation therapy Early Phase 1

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: The Relationship Between Plasma Transforming Growth Factor-beta 1 (TGF-β) and Fractionation in Radiotherapy for Breast Cancer: A Randomized Study

Resource links provided by NLM:

Further study details as provided by University of California, San Francisco:

Enrollment: 20
Study Start Date: April 2004
Study Completion Date: May 2004
Primary Completion Date: May 2004 (Final data collection date for primary outcome measure)
Detailed Description:



  • 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.


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No


  • Histologically confirmed invasive breast cancer
  • Underwent lumpectomy (breast-preserving surgery) with or without adjuvant chemotherapy within the past 12 weeks

    • Histologically negative surgical margins (i.e., no tumor on ink)
  • Candidates for postoperative breast radiotherapy

    • Determined not to need radiotherapy to regional nodes (e.g., third supraclavicular field)
  • Hormone receptor status not specified


  • Female
  • Menopausal status not specified
  • Not pregnant or nursing
  • Negative pregnancy test
  • Fertile patients must use effective contraception
  • No history of scleroderma or systemic lupus erythematosis
  • No other prior or concurrent malignancy except nonmelanoma skin cancer or carcinoma in situ of the cervix


  • See Disease Characteristics
  • No prior breast radiotherapy
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00301041

United States, California
UCSF Helen Diller Family Comprehensive Cancer Center
San Francisco, California, United States, 94115
Sponsors and Collaborators
University of California, San Francisco
National Cancer Institute (NCI)
Principal Investigator: Catherine C. Park, MD University of California, San Francisco
  More Information

Responsible Party: University of California, San Francisco Identifier: NCT00301041     History of Changes
Other Study ID Numbers: CDR0000465214
Study First Received: March 8, 2006
Last Updated: August 19, 2013

Keywords provided by University of California, San Francisco:
invasive ductal breast carcinoma
invasive lobular breast carcinoma
stage I breast cancer
stage II breast cancer
stage IIIA breast cancer

Additional relevant MeSH terms:
Breast Neoplasms
Neoplasms by Site
Breast Diseases
Skin Diseases processed this record on September 19, 2017