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Green Tea Extract in Treating Patients With Nonmetastatic Bladder Cancer

This study is ongoing, but not recruiting participants.
Sponsor:
ClinicalTrials.gov Identifier:
NCT00666562
First Posted: April 25, 2008
Last Update Posted: July 2, 2017
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by (Responsible Party):
National Cancer Institute (NCI)
  Purpose
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.

Condition Intervention Phase
Stage I Bladder Cancer Stage II Bladder Cancer Stage III Bladder Cancer Dietary Supplement: Defined Green Tea Catechin Extract Other: Laboratory Biomarker Analysis Other: Pharmacological Study Drug: Placebo Procedure: Therapeutic Conventional Surgery Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double (Participant, Investigator)
Primary Purpose: Prevention
Official Title: A Phase II Randomized, Placebo-Controlled Trial of Polyphenon E to Evaluate Bladder Tissue Levels of EGCG

Resource links provided by NLM:


Further study details as provided by National Cancer Institute (NCI):

Primary Outcome Measures:
  • 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) [ Time Frame: up to 28 days ]
    Comparison of nonmalignant bladder tissue levels of EGCG between the placebo group and the EGCG groups combined using student t-test.


Secondary Outcome Measures:
  • Levels of EGCG in Malignant Bladder Tissue [ Time Frame: up to 28 days ]
  • Levels of Surrogate Intermediate Endpoint Biomarkers in Malignant and Nonmalignant Bladder Tissue Assessed by Immunohistochemistry [ Time Frame: up to 28 days ]
  • Serum Insulin Growth Factor-1 (IGF-1) Levels Assessed by ELISA [ Time Frame: Baseline and up to day 28 ]
  • Levels of Other Catechins (Epicatechin Gallate, Epicatechin, and Epigallocatechin) Found in Polyphenon E Tumor Tissue Samples [ Time Frame: up to 28 days ]
  • Absolute Change for Baseline From EGCG in Serum Samples [ Time Frame: Baseline and up to 28 days ]
    The difference between the amount at the end of study (up to 28 days) from baseline.

  • Metabolism of EGCG in Serum and Urine in Relation to Pharmacogenetic Polymorphisms in Catechol-O-Methyltransferase (COMT) [ Time Frame: At Baseline ]
  • Serum IGFBP-3 Levels Assessed by ELISA [ Time Frame: Baseline and up to 28 days ]
  • Levels of Other Catechins (Epicatechin Gallate, Epicatechin, and Epigallocatechin) Found in Polyphenon E Normal Tissue Samples [ Time Frame: up to 28 days ]
  • Absolute Change From Baseline of Other Catechins (Epicatechin Gallate, Epicatechin, and Epigallocatechin) Found in Polyphenon E in Urine Samples [ Time Frame: Baseline and up to 28 days ]
    The difference between the amount at the end of study (up to 28 days) from baseline.

  • Absolute Change From Baseline of Other Catechins (Epicatechin Gallate, Epicatechin, and Epigallocatechin) Found in Polyphenon E Plasma Samples [ Time Frame: Baseline and up to 28 days ]
    The difference between the amount at the end of study (up to 28 days) from baseline.

  • Absolute Change for Baseline of EGCG in Urine Samples [ Time Frame: Baseline and up to 28 days ]
    The difference between the amount at the end of study (up to 28 days) from baseline.

  • Metabolism of EGCG in Serum and Urine in Relation to Pharmacogenetic Polymorphisms in Uridinediphosphate- Glucuronosyltransferase (UGT) [ Time Frame: At Baseline ]

Enrollment: 31
Actual Study Start Date: July 2, 2008
Primary Completion Date: April 26, 2012 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Placebo Comparator: Arm I (placebo)
Patients receive six oral placebo capsules once daily for 14-28 days.
Other: Laboratory Biomarker Analysis
Correlative studies
Other: Pharmacological Study
Correlative studies
Drug: Placebo
Given orally
Other Names:
  • placebo therapy
  • PLCB
  • sham therapy
Experimental: Arm II (polyphenon E, placebo)
Patients receive four oral polyphenon E capsules and two oral placebo capsules once daily for 14-28 days in the absence of unacceptable toxicity.
Dietary Supplement: Defined Green Tea Catechin Extract
Given orally
Other Names:
  • Polyphenon E
  • Polyphenon E TM
Other: Laboratory Biomarker Analysis
Correlative studies
Other: Pharmacological Study
Correlative studies
Drug: Placebo
Given orally
Other Names:
  • placebo therapy
  • PLCB
  • sham therapy
Experimental: Arm III (polyphenon E, trans-urethral resection or cystectomy)
Patients 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.
Dietary Supplement: Defined Green Tea Catechin Extract
Given orally
Other Names:
  • Polyphenon E
  • Polyphenon E TM
Other: Laboratory Biomarker Analysis
Correlative studies
Other: Pharmacological Study
Correlative studies
Procedure: Therapeutic Conventional Surgery
Undergo surgery

  Show Detailed Description

  Eligibility

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Criteria:

  • Diagnosis of bladder cancer
  • Bladder tumor discovered on cystoscopy within the past 60 days
  • Invasive or non-invasive tumor
  • Primary tumor may represent either an initial diagnosis or recurrent disease of any clinical stage
  • No metastatic disease
  • Must be an eligible candidate for a partial cystectomy, radical cystectomy, or trans-urethral resection of bladder tumor (TURBT)
  • Has not undergone any treatment for superficial or invasive bladder cancer since the diagnostic cystoscopy
  • TURBT or radical cystectomy is the planned curative surgical treatment
  • ECOG performance status (PS) 0-1 OR Karnofsky PS 70-100%
  • More than 30 days since any prior intravesical therapy or adjuvant chemotherapy
  • More than 30 days since prior bladder surgery
  • Biopsies are not considered surgeries
  • No prior pelvic radiotherapy
  • No concurrent systemic chemotherapy for any other cancer, except nonmelanoma skin cancer
  • No concurrent NSAIDs (e.g., ibuprofen, naproxen, or cyclooxygenase-2 inhibitors) except =< 81 mg aspirin per day
  • Concurrent acetaminophen (Tylenol) or prescription opioids combined with acetaminophen (i.e., Percocet, Darvocet, Vicodin, Tylenol #3) allowed for pain
  • No other concurrent investigational agents
  • White Blood Cell (WBC) >= 3,000/mm^3
  • Platelet count >= 100,000/mm^3
  • Hemoglobin >= 10 g/dL
  • Alkaline phosphatase =< upper limit of normal (ULN)
  • Bilirubin =< ULN
  • Asparate Aminotransferase (AST) and Alanine Transaminase (ALT) =< ULN
  • Sodium 135-144 mmol/L (inclusive)
  • Potassium 3.2-4.8 mmol/L (inclusive)
  • Chloride 85-114 mmol/L (inclusive)
  • Bicarbonate >11 mEQ/dL
  • Negative pregnancy test
  • Fertile patients must use effective contraception
  • Willing to avoid green tea beverages and green tea-containing products during study participation
  • No evidence of other cancers, except nonmelanoma skin cancer
  • No history of allergic reactions attributed to tea or to any of the compounds of similar chemical or biologic composition to Polyphenon E or any of the inactive ingredients in Polyphenon E capsules
  • No uncontrolled intercurrent illness including, but not limited to, any of the following: Ongoing or active infection, Symptomatic congestive heart failure, Unstable angina pectoris, Cardiac arrhythmia, Psychiatric illness/social situations that would limit study compliance
  • More than 24 hours since prior and no concurrent consumption of any other green tea supplements or more than 2 cups (16 oz) of green tea either through dietary sources or through nutritional supplementation
  • Topical cosmetics (i.e., lotions, shampoos, makeup) that contain green tea are allowed
  • Creatinine normal
  • Not pregnant or nursing
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00666562


Locations
United States, Alabama
University of Alabama at Birmingham Cancer Center
Birmingham, Alabama, United States, 35233
United States, Massachusetts
Lahey Hospital and Medical Center
Burlington, Massachusetts, United States, 01805
United States, Minnesota
Minneapolis Veterans Medical Center
Minneapolis, Minnesota, United States, 55417
United States, New York
University of Rochester
Rochester, New York, United States, 14642
United States, Texas
Urology San Antonio Research PA
San Antonio, Texas, United States, 78229
United States, Wisconsin
University of Wisconsin Hospital and Clinics
Madison, Wisconsin, United States, 53792
Sponsors and Collaborators
National Cancer Institute (NCI)
Investigators
Principal Investigator: Tracy Downs University of Wisconsin, Madison
  More Information

Responsible Party: National Cancer Institute (NCI)
ClinicalTrials.gov Identifier: NCT00666562     History of Changes
Other Study ID Numbers: NCI-2009-00906
NCI-2009-00906 ( Registry Identifier: CTRP (Clinical Trial Reporting Program) )
CO06810
CDR0000594276
H-2007-0250
UWI06-8-01 ( Other Identifier: University of Wisconsin Hospital and Clinics )
UWI06-8-01 ( Other Identifier: DCP )
N01CN35153 ( U.S. NIH Grant/Contract )
P30CA014520 ( U.S. NIH Grant/Contract )
First Submitted: April 24, 2008
First Posted: April 25, 2008
Results First Submitted: January 20, 2016
Results First Posted: March 28, 2016
Last Update Posted: July 2, 2017
Last Verified: June 2017

Additional relevant MeSH terms:
Urinary Bladder Neoplasms
Urologic Neoplasms
Urogenital Neoplasms
Neoplasms by Site
Neoplasms
Urinary Bladder Diseases
Urologic Diseases
Epigallocatechin gallate
Antioxidants
Molecular Mechanisms of Pharmacological Action
Protective Agents
Physiological Effects of Drugs
Antimutagenic Agents
Anticarcinogenic Agents
Antineoplastic Agents
Neuroprotective Agents