NCT00818051

Radiation Therapy in Treating Women Who Have Undergone Breast Conservation Surgery and Systemic Therapy for Early Breast Cancer

Randomized Trial Testing Dose Escalated Intensity Modulated Radiotherapy for Women Treated by Breast Conservation Surgery and Appropriate Systemic Therapy for Early Breast Cancer

• Status: Unknown
• Phase: Phase 3
• Study type: Interventional
• Enrollment: 840 (estimated)
• Sponsor: Institute of Cancer Research, United Kingdom · Academic / Other
• Sex: Female
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

RATIONALE: Radiation therapy uses high-energy x-rays to kill tumor cells. Specialized radiation therapy, such as intensity-modulated radiation therapy, that delivers a high dose of radiation directly to the tumor may kill more tumor cells and cause less damage to normal tissue. It is not yet known which radiation therapy schedule is more effective in treating breast cancer. PURPOSE: This randomized phase III trial is studying three different radiation therapy schedules to compare how well they work in treating women who have undergone breast conservation surgery and systemic therapy for early breast cancer.

Detailed description

OBJECTIVES: * To test dose-escalated intensity-modulated radiotherapy after breast conservation surgery in women with early breast cancer who are at higher than average risk for local recurrence. OUTLINE: This is a multicenter study. Patients are stratified according to center. Patients are randomized to 1 of 3 treatment arms. * Arm I (control): Patients undergo sequential boost dose intensity-modulated radiotherapy (IMRT) 5 days a week for 4.6 weeks (23 fractions; 56 Gy). * Arm II: Patients undergo concurrent boost dose IMRT 5 days a week for 3 weeks (15 fractions; 48 Gy). * Arm III: Patients undergo concurrent boost dose IMRT 5 days a week for 3 weeks (15 fractions; 53 Gy). Quality-of-life questionnaires are administered at baseline, 6 months, and at 1, 3, and 5 years. Photograph assessments of the breasts are taken at baseline and at 3 and 5 years. Blood samples are collected at baseline and periodically thereafter. Tissue samples are also collected from primary tumor, including new primary tumor in either breast, and recurrent tumor. After completion of study treatment, patients are followed annually for 10 years.

Conditions

• Breast Cancer

Interventions

Type	Name	Description
RADIATION	intensity-modulated radiation therapy	Given as 48, 53, or 56 Gy

Timeline

• Start date: 2008-08-01
• First posted: 2009-01-07
• Last updated: 2011-01-07

Locations

1 site across 1 country: United Kingdom