1.	Selenium for Prevention of Adenomatous Colorectal Polyps Phase: Phase III Type: Prevention Status: Active Age: 40 to 80 Sponsor: NCI, Other Protocol IDs: CDR0000353185, P30CA023074, UARIZ-00-0430-01, UARIZ-HSC-00142, P01CA041108, 00-0430-01, NCT00078897
2.	Effect of Vitamin E and/or Selenium on Colorectal Polyps in Men Enrolled on SELECT Trial SWOG-S0000 Phase: Phase III Type: Natural history/Epidemiology, Prevention Status: Active Age: 50 and over Sponsor: NCI Protocol IDs: SWOG-S0000D, S0000D, NCT00706121
3.	Rosuvastatin in Treating Patients With Stage I or Stage II Colon Cancer That Was Removed By Surgery Phase: Phase III Type: Biomarker/Laboratory analysis, Prevention, Treatment Status: Active Age: 18 and over Sponsor: NCI Protocol IDs: NSABP-P-5, NSABP P-5, NCT01011478
4.	Trial In Pediatric Patients With Familial Adenomatous Polyposis (FAP) Phase: Phase III Type: Prevention Status: Active Age: 10 to 17 Sponsor: Pharmaceutical / Industry Protocol IDs: A3191193, MDA-2006-0040, PFIZER-A3191193, N01-CN-05126-2, NCT00393016, NCT00585312
5.	S0820, Adenoma and Second Primary Prevention Trial Phase: Phase III Type: Prevention Status: Approved-not yet active Age: 18 and over Sponsor: NCI, Other Protocol IDs: S0820, U10CA037429, NCT01349881
6.	Trial of Eflornithine Plus Sulindac in Patients With Familial Adenomatous Polyposis (FAP) Phase: Phase III Type: Biomarker/Laboratory analysis, Prevention Status: Approved-not yet active Age: Not specified Sponsor: Pharmaceutical / Industry Protocol IDs: CPP-FAP-310, NCT01483144
7.	Influence of Sulindac and Probiotics on the Development of Pouch Adenomas in Patients With Familial Adenomatous Polyposis Phase: Phase II Type: Prevention Status: Active Age: 16 and over Sponsor: Other Protocol IDs: 23266, KUN 2003-2911, NCT00319007
8.	Polyethylene Glycol for ACF Reduction and Biomarker Modulation in Individuals With Colorectal Cancer Risk Phase: Phase II Type: Biomarker/Laboratory analysis, Prevention Status: Active Age: 18 and over Sponsor: NCI, Other Protocol IDs: NCI 06-8-01, P30CA060553, NU-NWU06-8-01, NWU06-8-01, NCT00828984
9.	Study of the MUC1 Peptide-Poly-ICLC Adjuvant Vaccine in Individuals With Advanced Colorectal Adenoma Phase: Phase II Type: Prevention Status: Active Age: 40 to 70 Sponsor: NCI, Other Protocol IDs: PRO07030214, NIH grant 5P01 CA73743-08, NCT00773097
10.	Acetylsalicylic Acid and Eflornithine in Treating Patients at High Risk for Colorectal Cancer Phase: Phase II Type: Biomarker/Laboratory analysis, Natural history/Epidemiology, Prevention Status: Active Age: 40 to 120 Sponsor: NCI Protocol IDs: NCI-2009-01192, R01CA113681, MC054A, NCT00983580
11.	A Clinical Trial of COX and EGFR Inhibition in Familial Polyposis Patients Phase: Phase II Type: Biomarker/Laboratory analysis, Prevention Status: Active Age: 18 to 69 Sponsor: NCI, Other Protocol IDs: 00039278, P01CA073992, NCT01187901
12.	A Trial of Metformin for Colorectal Cancer Risk Reduction Among Patients With a History of Colorectal Adenomas and Elevated Body Mass Index Phase: Phase II Type: Biomarker/Laboratory analysis, Prevention Status: Active Age: 35 to 80 Sponsor: NCI, Other Protocol IDs: UCI 10-31, NIH, UCI09-13-01, NCT01312467
13.	Minimizing the Risk of Metachronous Adenomas of the Colorectum With Green Tea Extract -MIRACLE- Phase: Phase II Type: Biomarker/Laboratory analysis, Prevention Status: Active Age: 50 to 80 Sponsor: Other Protocol IDs: MIRACLE, NCT01360320
14.	Green Tea Catechin Extract in Preventing Polyps in Patients at High-Risk for Recurrent Colon Polyps Phase: Phase II Type: Biomarker/Laboratory analysis, Prevention Status: Approved-not yet active Age: 40 and over Sponsor: NCI Protocol IDs: MAYO-MC084C, MC084C, R01-CA-132991
15.	Fish Oil Supplementation, Nutrigenomics and Colorectal Cancer Prevention Phase: Phase II Type: Biomarker/Laboratory analysis, Prevention Status: Approved-not yet active Age: 40 to 79 Sponsor: NCI, Other Protocol IDs: 11165, R01CA160938, NCT01661764
16.	Curcumin in Preventing Colorectal Cancer in Patients Undergoing Colorectal Endoscopy or Colorectal Surgery Phase: Phase I Type: Biomarker/Laboratory analysis, Prevention Status: Active Age: 18 and over Sponsor: Other Protocol IDs: CDR0000648267, LRI-UL-CURCUMIN, EUDRACT-2007-001971-13, EU-20961, UL-CURCUMIN, NCT00973869
17.	Inositol in Preventing Colorectal Cancer in Patients With Colitis-Associated Dysplasia Phase: Phase I Type: Biomarker/Laboratory analysis, Prevention Status: Active Age: 18 and over Sponsor: NCI Protocol IDs: NU-NWU09-13-02, NWU09-13-02, NCT01111292
18.	Personalized Prevention of Colorectal Cancer Trial Phase: No phase specified Type: Biomarker/Laboratory analysis, Prevention Status: Active Age: 40 to 85 Sponsor: Other Protocol IDs: 100106, NCT01105169
19.	A Pilot Study of Docosahexaenoic Acid (DHA) in Obese Menopausal Women Phase: No phase specified Type: Biomarker/Laboratory analysis, Prevention Status: Active Age: 40 to 70 Sponsor: Other Protocol IDs: PHO-0702, NCT01127867
20.	Colon Cancer Prevention Using Selenium Phase: No phase specified Type: Biomarker/Laboratory analysis, Prevention Status: Approved-not yet active Age: 50 and over Sponsor: Other Protocol IDs: 2008-1122, NCT01211561
21.	Cruciferous Vegetable Intake and Histone Status in Screening Colonoscopy Patients Phase: No phase specified Type: Biomarker/Laboratory analysis, Prevention, Screening Status: Active Age: 50 to 75 Sponsor: NCI, Other Protocol IDs: P01 CA090890, NCT01344330
22.	Prospective Trial of Metformin - Chemoprevention Role Phase: No phase specified Type: Biomarker/Laboratory analysis, Prevention Status: Approved-not yet active Age: 40 to 75 Sponsor: Other Protocol IDs: 2011-1100, NCT01550900
23.	FLAX FX, A Research Study of the Effects of Flaxseed Lignans on Colon Health Phase: No phase specified Type: Biomarker/Laboratory analysis, Prevention Status: Approved-not yet active Age: 20 to 45 Sponsor: Other Protocol IDs: FHCRC IR 7532, NCT01619020