Green Tea Extract in Treating Patients With Metastatic Prostate Cancer That Has Not Responded to Hormone Therapy
Prostate Cancer
About this trial
This is an interventional treatment trial for Prostate Cancer focused on measuring stage IV prostate cancer, recurrent prostate cancer
Eligibility Criteria
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
Sites / Locations
- CCOP - Scottsdale Oncology Program
- CCOP - Illinois Oncology Research Association
- CCOP - Carle Cancer Center
- CCOP - Cedar Rapids Oncology Project
- CCOP - Iowa Oncology Research Association
- Siouxland Hematology-Oncology
- CCOP - Wichita
- CCOP - Duluth
- Mayo Clinic Cancer Center
- CCOP - Metro-Minnesota
- CCOP - Missouri Valley Cancer Consortium
- Medcenter One Health System
- CCOP - Merit Care Hospital
- CCOP - Toledo Community Hospital Oncology Program
- Rapid City Regional Hospital
- CCOP - Sioux Community Cancer Consortium
Arms of the Study
Arm 1
Experimental
green tea extract
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.