The Department of Gastrointestinal Oncology at M. D. Anderson Cancer Center in Houston is conducting a new clinical study of the effects of two medications on reducing or preventing polyps in Familial Adenomatous Polyposis. If you are between the ages of 18 and 65 and have been diagnosed with FAP and would like more information on this study, please contact Sherri Patterson, Coordinator of Chemoprevention Programs, Department of GI Oncology, M. D. Anderson Cancer Center, 1515 Holcombe Blvd., Box 78, Houston, TX 77030. Telephone number 713-745-4155, fax 713-745-1163, email: spatterson@mdanderson.org.