1.	Green Tea Extract in Treating Patients With Nonmetastatic Bladder Cancer Phase: Phase II Type: Biomarker/Laboratory analysis, Treatment Status: Active Age: 18 and over Sponsor: NCI, Other Protocol IDs: CDR0000594276, WCCC-UWI06-8-01, H2007-0250, 07-1270-03, UWI06-8-01, CO06810, NCT00666562
2.	Study of Polyphenon E in Men With High-grade Prostatic Intraepithelial Neoplasia Phase: Phase II Type: Prevention Status: Active Age: 30 to 80 Sponsor: NCI, Other Protocol IDs: MCC-15008, R01 CA12060-01A1, NCT00596011
3.	Polyphenon E in Treating Patients With High-Risk of Colorectal Cancer Phase: Phase II Type: Biomarker/Laboratory analysis, Treatment Status: Approved-not yet active Age: 40 and over Sponsor: NCI, Other Protocol IDs: MC084C, NCI-2012-00058, NCT01606124
4.	Phase I Chemoprevention Trial With Green Tea Polyphenon E and Erlotinib in Patients With Premalignant Lesions of the Head and Neck Phase: Phase I Type: Prevention Status: Active Age: 18 and over Sponsor: Other Protocol IDs: WCI1549-08, NCT01116336