Celecoxib With or Without Eflornithine in Preventing Colorectal Cancer in Patients With Familial Adenomatous Polyposis
Conditions
- Colorectal Cancer
- Familial Adenomatous Polyposis
Interventions
- DRUG: Celecoxib
- OTHER: Placebo
- DRUG: eflornithine
- OTHER: Laboratory biomarker analysis
- OTHER: Questionnaire administration
Sponsor
National Cancer Institute (NCI)