ClinicalTrials.gov record
Completed Phase 2 Interventional Results available

Green Tea Extract in Treating Patients With Nonmetastatic Bladder Cancer

ClinicalTrials.gov ID: NCT00666562

Public ClinicalTrials.gov record NCT00666562. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Apr 29, 2026, 12:15 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Phase II Randomized, Placebo-Controlled Trial of Polyphenon E to Evaluate Bladder Tissue Levels of EGCG

Study identification

NCT ID
NCT00666562
Recruitment status
Completed
Study type
Interventional
Phase
Phase 2
Lead sponsor
National Cancer Institute (NCI)
NIH
Enrollment
31 participants

Conditions and interventions

Interventions

  • Defined Green Tea Catechin Extract Dietary Supplement
  • Laboratory Biomarker Analysis Other
  • Pharmacological Study Other
  • Placebo Drug
  • Therapeutic Conventional Surgery Procedure

Dietary Supplement · Other · Drug + 1 more

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Jul 1, 2008
Primary completion
Apr 25, 2012
Completion
Jun 8, 2017
Last update posted
Nov 16, 2017

2008 – 2017

United States locations

U.S. sites
6
U.S. states
6
U.S. cities
6
Facility City State ZIP Site status
University of Alabama at Birmingham Cancer Center Birmingham Alabama 35233
Lahey Hospital and Medical Center Burlington Massachusetts 01805
Minneapolis Veterans Medical Center Minneapolis Minnesota 55417
University of Rochester Rochester New York 14642
Urology San Antonio Research PA San Antonio Texas 78229
University of Wisconsin Hospital and Clinics Madison Wisconsin 53792

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT00666562, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Nov 16, 2017 · Synced Apr 29, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT00666562 live on ClinicalTrials.gov.

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