LARGE BOWEL ADENOMATOUS POLYP DIETARY INTERVENTION STUDY--CLINICAL CENTERS RFP AVAILABLE: NCI-CN-05220-20 P.T. 04; K.W. 0715035, 0705025, 0710095, 0755015 National Cancer Institute The National Cancer Institute, Division of Cancer Prevention and Control, is soliciting proposals for clinical centers to conduct a large bowel adenomatous polyp dietary intervention study. This multi-center randomized controlled intervention study will examine the effect of a low-fat, high-fiber, vegetable and fruit-enriched diet on the recurrence of adenomatous polyps of the large bowel. It is expected that an individual offeror will randomize participants at a minimum rate of 7 per month, or 170 participants over the two-year randomization period. General requirements include identification and accrual of eligible participants, nutritional education and counselling, participant follow-up and endpoint assessment. Intermediate endpoint specimens will be collected. Data maintenance and reporting quality control systems will be supported. A separate Request for Proposals (RFP) will be issued for a data and nutrition coordinating center. Date of issuance of the RFP will be approximately October 26, 1989, with a closing date for receipt of proposals to be approximately January 4, 1990. The Institute plans to award up to 12 contracts from this solicitation. Copies of RFP No. NCI-CN-05220-20 may be obtained by sending a WRITTEN request to: Mr. Charles E. Lerner, Contract Specialist National Institutes of Health National Cancer Institute Research Contracts Branch, PCCS Executive Plaza South, Room 635 Bethesda, Maryland 20892 Telephone: (301) 496-8603 Vol. 18, No. 38, October 27, 1989 - Page 1 NIH GUIDE