Green Tea Extract in Treating Patients With Nonmetastatic Bladder Cancer
A Phase II Randomized, Placebo-Controlled Trial of Polyphenon E to Evaluate Bladder Tissue Levels of EGCG
7 other identifiers
interventional
31
1 country
6
Brief Summary
Green tea extract contains ingredients that may slow the growth of certain cancers. It is not yet known whether green tea extract is more effective than a placebo when given before surgery in treating patients with bladder. This randomized phase II trial is studying green tea extract to see how well it works compared to a placebo when given before surgery in treating patients with nonmetastatic bladder cancer.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_2
Started Jul 2008
Longer than P75 for phase_2
6 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
April 24, 2008
CompletedFirst Posted
Study publicly available on registry
April 25, 2008
CompletedStudy Start
First participant enrolled
July 2, 2008
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 26, 2012
CompletedResults Posted
Study results publicly available
March 28, 2016
CompletedStudy Completion
Last participant's last visit for all outcomes
June 9, 2017
CompletedNovember 17, 2017
October 1, 2017
3.8 years
April 24, 2008
January 20, 2016
October 17, 2017
Conditions
Outcome Measures
Primary Outcomes (1)
Epigallocatechin Gallate (EGCG) Levels in Nonmalignant Bladder Tissue (e.g., Normal-appearing Urothelium, Inflammatory Lesions in the Bladder, Sessile Noninvasive Bladder Tumors, and Papillary Noninvasive Bladder Tumors)
Comparison of nonmalignant bladder tissue levels of EGCG between the placebo group and the EGCG groups combined using student t-test.
up to 28 days
Secondary Outcomes (12)
Levels of EGCG in Malignant Bladder Tissue
up to 28 days
Levels of Surrogate Intermediate Endpoint Biomarkers in Malignant and Nonmalignant Bladder Tissue Assessed by Immunohistochemistry
up to 28 days
Serum Insulin Growth Factor-1 (IGF-1) Levels Assessed by ELISA
Baseline and up to day 28
Levels of Other Catechins (Epicatechin Gallate, Epicatechin, and Epigallocatechin) Found in Polyphenon E Tumor Tissue Samples
up to 28 days
Absolute Change for Baseline From EGCG in Serum Samples
Baseline and up to 28 days
- +7 more secondary outcomes
Study Arms (3)
Arm I (placebo)
PLACEBO COMPARATORPatients receive six oral placebo capsules once daily for 14-28 days.
Arm II (polyphenon E, placebo)
EXPERIMENTALPatients receive four oral polyphenon E capsules and two oral placebo capsules once daily for 14-28 days in the absence of unacceptable toxicity.
Arm III (polyphenon E, trans-urethral resection or cystectomy)
EXPERIMENTALPatients receive six oral polyphenon E capsules once daily for 14-28 days in the absence of unacceptable toxicity. After completion of study treatment, patients undergo trans-urethral resection of bladder tumor or cystectomy.
Interventions
Given orally
Correlative studies
Correlative studies
Given orally
Undergo surgery
Eligibility Criteria
Contact the study team to discuss eligibility requirements. They can help determine if this study is right for you.
Sponsors & Collaborators
Study Sites (6)
University of Alabama at Birmingham Cancer Center
Birmingham, Alabama, 35233, United States
Lahey Hospital and Medical Center
Burlington, Massachusetts, 01805, United States
Minneapolis Veterans Medical Center
Minneapolis, Minnesota, 55417, United States
University of Rochester
Rochester, New York, 14642, United States
Urology San Antonio Research PA
San Antonio, Texas, 78229, United States
University of Wisconsin Hospital and Clinics
Madison, Wisconsin, 53792, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Howard H. Bailey
- Organization
- University of Wisconsin
Study Officials
- PRINCIPAL INVESTIGATOR
Tracy Downs
University of Wisconsin, Madison
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- LTE60
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, INVESTIGATOR
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- NIH
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
April 24, 2008
First Posted
April 25, 2008
Study Start
July 2, 2008
Primary Completion
April 26, 2012
Study Completion
June 9, 2017
Last Updated
November 17, 2017
Results First Posted
March 28, 2016
Record last verified: 2017-10