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RATIONALE: Radiation therapy uses high energy x-rays to kill tumor cells. Drugs used in chemotherapy, such as capecitabine, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Giving radiation therapy together with capecitabine may kill more tumor cells. Celecoxib may prevent or lessen hand-foot syndrome caused by capecitabine.
- Determine the efficacy of celecoxib in reducing the incidence and severity of hand/foot syndrome caused by capecitabine in patients with metastatic breast cancer or colorectal cancer.
OUTLINE: This is a placebo-controlled, randomized, double-blind, multicenter study. Patients are stratified according to metastatic disease (breast vs colorectal), ECOG performance status (0 or 1 vs 2), prior chemotherapy (yes vs no).
Patients receive 1 of 2 treatment regimens.
- Regimen A (concurrent radiotherapy): Patients undergo radiotherapy 5 days a week for 5-6 weeks and receive oral capecitabine twice daily 5 days a week. Following completion of radiotherapy, patients may continue oral capecitabine as in regimen B.
- Regimen B (no radiotherapy): Patients receive oral capecitabine once daily on days 1-14. Courses repeat every 21 days.
Patients are also randomized to 1 of 2 treatment arms.
- Arm I: Patients receive oral celecoxib twice daily on days 1-21.
- Arm II: Patients receive oral placebo twice daily on days 1-21. In both arms, treatment repeats every 21 days in the absence of disease progression or unacceptable toxicity.
After completion of study treatment, patients are followed every 3 months.
PROJECTED ACCRUAL: A total of 342 patients will be accrued for this study.
Allocation: Randomized, Control: Placebo Control, Endpoint Classification: Efficacy Study, Intervention Model: Single Group Assignment, Masking: Double Blind (Subject, Caregiver, Investigator), Primary Purpose: Supportive Care
Capecitabine, Celecoxib, Radiation Therapy
CCOP - Santa Rosa Memorial Hospital
M.D. Anderson Cancer Center
Published on BioPortfolio: 2014-08-27T03:45:35-0400
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