Clinical trial NCT00005828: Green Tea Extract in Treating Patients With Metastatic Prostate Cancer That Has Not Responded to Hormone Therapy
Official title: A Phase II Trial of Green Tea Extract in the Treatment of Androgen-Independent Metastatic Prostate Cancer
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: PHASE2
Conditions: Prostate Cancer
Keywords: stage IV prostate cancer
recurrent prostate cancer
Lead sponsor: Alliance for Clinical Trials in Oncology
Sponsor class: OTHER
Collaborators: name: National Cancer Institute (NCI)
First posted: 2004-04-20
Enrollment: 54
Sex: MALE
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: NA
Intervention model: SINGLE_GROUP
Primary purpose: TREATMENT

Brief summary: 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.

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.

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

Primary outcomes:
measure: Response rate and duration
timeFrame: Up to 5 years
measure: Disease-regression
timeFrame: Up to 5 years
Secondary outcomes:
Other outcomes:
Locations:
city: Scottsdale
country: United States
facility: CCOP - Scottsdale Oncology Program
state: Arizona
city: Peoria
country: United States
facility: CCOP - Illinois Oncology Research Association
state: Illinois
city: Urbana
country: United States
facility: CCOP - Carle Cancer Center
state: Illinois
city: Cedar Rapids
country: United States
facility: CCOP - Cedar Rapids Oncology Project
state: Iowa
city: Des Moines
country: United States
facility: CCOP - Iowa Oncology Research Association
state: Iowa
city: Sioux City
country: United States
facility: Siouxland Hematology-Oncology
state: Iowa
city: Wichita
country: United States
facility: CCOP - Wichita
state: Kansas
city: Duluth
country: United States
facility: CCOP - Duluth
state: Minnesota
city: Rochester
country: United States
facility: Mayo Clinic Cancer Center
state: Minnesota
city: Saint Louis Park
country: United States
facility: CCOP - Metro-Minnesota
state: Minnesota
city: Omaha
country: United States
facility: CCOP - Missouri Valley Cancer Consortium
state: Nebraska
city: Bismarck
country: United States
facility: Medcenter One Health System
state: North Dakota
city: Fargo
country: United States
facility: CCOP - Merit Care Hospital
state: North Dakota
city: Toledo
country: United States
facility: CCOP - Toledo Community Hospital Oncology Program
state: Ohio
city: Rapid City
country: United States
facility: Rapid City Regional Hospital
state: South Dakota
city: Sioux Falls
country: United States
facility: CCOP - Sioux Community Cancer Consortium
state: South Dakota
Study officials:
affiliation: Mayo Clinic
name: Aminah Jatoi, MD
role: STUDY_CHAIR
References:
citation: Jatoi A, Ellison N, Burch PA, Sloan JA, Dakhil SR, Novotny P, Tan W, Fitch TR, Rowland KM, Young CY, Flynn PJ. A phase II trial of green tea in the treatment of patients with androgen independent metastatic prostate carcinoma. Cancer. 2003 Mar 15;97(6):1442-6. doi: 10.1002/cncr.11200.