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Green Tea Extract in Treating Patients With Metastatic Prostate Cancer That Has Not Responded to Hormone Therapy

This study has been completed.
Information provided by:
National Cancer Institute (NCI) Identifier:
First received: June 2, 2000
Last updated: February 6, 2009
Last verified: January 2005

RATIONALE: Green tea extract contains substances that may slow the growth of certain cancers and may prevent the development of new cancers.

PURPOSE: Phase II trial to determine the effectiveness of green tea extract in treating patients who have metastatic prostate cancer that has not responded to hormone therapy.

Condition Intervention Phase
Prostate Cancer
Dietary Supplement: green tea extract
Phase 2

Study Type: Interventional
Study Design: Primary Purpose: Treatment
Official Title: A Phase II Trial of Green Tea Extract in the Treatment of Androgen-Independent Metastatic Prostate Cancer

Resource links provided by NLM:

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

Study Start Date: December 2000
Detailed Description:

OBJECTIVES: I. Determine the effectiveness and toxicity of green tea extract in patients with androgen-independent metastatic prostate cancer. II. Determine the response rate and response duration in patients treated with this regimen. III. Determine whether a decline in prostate-specific antigen (PSA) coincides with evidence of disease regression in these patients.

OUTLINE: Patients receive oral green tea extract six times daily for 4 months. Patients with a 50% decline in PSA, complete or partial response, or stable disease after 4 months continue treatment in the absence of disease progression or unacceptable toxicity. Patients with disease progression after 4 months receive no further treatment. Patients are followed every 3 months for 5 years or until disease progression. If disease progression, patients are followed every 6 months for 5 years.

PROJECTED ACCRUAL: A total of 15-44 patients will be accrued for this study within 1.5 years.


Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Male
Accepts Healthy Volunteers:   No

DISEASE CHARACTERISTICS: Clinically proven androgen-independent metastatic prostate cancer Radiological, physically palpable, and/or biochemical evidence of progression Increase in PSA after orchiectomy or hormonal treatment No symptoms directly attributable to metastatic disease No CNS metastases or carcinomatous meningitis

PATIENT CHARACTERISTICS: Age: 18 and over Performance status: ECOG 0-2 Life expectancy: At least 12 weeks Hematopoietic: Not specified Hepatic: Bilirubin no greater than 1.5 mg/dL Renal: Creatinine no greater than 2 times upper limit of normal Cardiovascular: No uncontrolled high blood pressure No unstable angina No symptomatic congestive heart failure No uncontrolled cardiac arrhythmias No myocardial infarction in past 6 months Other: No other malignancy within the past 5 years except basal cell skin cancer No uncontrolled diabetes mellitus or inability to tolerate high sugar content of green tea at discretion of oncologist No other medical or psychiatric conditions that would preclude study

PRIOR CONCURRENT THERAPY: Biologic therapy: At least 4 weeks since prior immunotherapy Chemotherapy: At least 4 weeks since prior chemotherapy No concurrent chemotherapy Endocrine therapy: At least 4 weeks since prior flutamide or megestrol At least 6 weeks since prior longer-acting hormonal agents such as bicalutamide At least 4 weeks since prior hormonal therapy, except luteinizing hormone- releasing hormone agonist No concurrent hormonal therapy, including corticosteroids for cancer treatment Radiotherapy: No concurrent radiotherapy Surgery: See Disease Characteristics Other: No other concurrent investigational agents

  Contacts and Locations
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Please refer to this study by its identifier: NCT00005828

United States, Arizona
CCOP - Scottsdale Oncology Program
Scottsdale, Arizona, United States, 85259-5404
United States, Illinois
CCOP - Illinois Oncology Research Association
Peoria, Illinois, United States, 61602
CCOP - Carle Cancer Center
Urbana, Illinois, United States, 61801
United States, Iowa
CCOP - Cedar Rapids Oncology Project
Cedar Rapids, Iowa, United States, 52403-1206
CCOP - Iowa Oncology Research Association
Des Moines, Iowa, United States, 50309-1016
Siouxland Hematology-Oncology
Sioux City, Iowa, United States, 51101-1733
United States, Kansas
CCOP - Wichita
Wichita, Kansas, United States, 67214-3882
United States, Minnesota
CCOP - Duluth
Duluth, Minnesota, United States, 55805
Mayo Clinic Cancer Center
Rochester, Minnesota, United States, 55905
CCOP - Metro-Minnesota
Saint Louis Park, Minnesota, United States, 55416
United States, Nebraska
CCOP - Missouri Valley Cancer Consortium
Omaha, Nebraska, United States, 68131
United States, North Dakota
Medcenter One Health System
Bismarck, North Dakota, United States, 58501
CCOP - Merit Care Hospital
Fargo, North Dakota, United States, 58122
United States, Ohio
CCOP - Toledo Community Hospital Oncology Program
Toledo, Ohio, United States, 43623-3456
United States, South Dakota
Rapid City Regional Hospital
Rapid City, South Dakota, United States, 57709
CCOP - Sioux Community Cancer Consortium
Sioux Falls, South Dakota, United States, 57105-1080
Sponsors and Collaborators
North Central Cancer Treatment Group
Study Chair: Aminah Jatoi, MD Mayo Clinic
  More Information

Additional Information:
Publications: Identifier: NCT00005828     History of Changes
Other Study ID Numbers: CDR0000067842, NCCTG-N9951
Study First Received: June 2, 2000
Last Updated: February 6, 2009
Health Authority: United States: Federal Government

Keywords provided by National Cancer Institute (NCI):
stage IV prostate cancer
recurrent prostate cancer

Additional relevant MeSH terms:
Prostatic Neoplasms
Genital Diseases, Male
Genital Neoplasms, Male
Neoplasms by Site
Prostatic Diseases
Urogenital Neoplasms processed this record on November 25, 2014