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

Prostate Cancer Clinical Trial

Official title:

A Phase II Trial of Green Tea Extract in the Treatment of Androgen-Independent Metastatic Prostate Cancer

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT00005828
• Other study ID #: NCCTG-N9951
• Secondary ID: CDR0000067842
• Status: Completed
• Phase: Phase 2
• First received: June 2, 2000
• Last updated: July 12, 2016
• Start date: December 2000
• Est. completion date: June 2008

Study information

• Verified date: July 2016
• Source: Alliance for Clinical Trials in Oncology
• Contact: n/a
• Is FDA regulated: No
• Health authority: United States: Federal Government
• Study type: Interventional

Clinical Trial 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.

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.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 54
• Est. completion date: June 2008
• Est. primary completion date: March 2003
• Accepts healthy volunteers: No
• Gender: Male
• Age group: 18 Years and older

Eligibility

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

Study Design

Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment

Related Conditions & MeSH terms

• Prostate Cancer
• Prostatic Neoplasms

Intervention

Dietary Supplement:
• green tea extract

Locations

Country	Name	City	State
United States	Medcenter One Health System	Bismarck	North Dakota
United States	CCOP - Cedar Rapids Oncology Project	Cedar Rapids	Iowa
United States	CCOP - Iowa Oncology Research Association	Des Moines	Iowa
United States	CCOP - Duluth	Duluth	Minnesota
United States	CCOP - Merit Care Hospital	Fargo	North Dakota
United States	CCOP - Missouri Valley Cancer Consortium	Omaha	Nebraska
United States	CCOP - Illinois Oncology Research Association	Peoria	Illinois
United States	Rapid City Regional Hospital	Rapid City	South Dakota
United States	Mayo Clinic Cancer Center	Rochester	Minnesota
United States	CCOP - Metro-Minnesota	Saint Louis Park	Minnesota
United States	CCOP - Scottsdale Oncology Program	Scottsdale	Arizona
United States	Siouxland Hematology-Oncology	Sioux City	Iowa
United States	CCOP - Sioux Community Cancer Consortium	Sioux Falls	South Dakota
United States	CCOP - Toledo Community Hospital Oncology Program	Toledo	Ohio
United States	CCOP - Carle Cancer Center	Urbana	Illinois
United States	CCOP - Wichita	Wichita	Kansas

Sponsors (2)

Lead Sponsor	Collaborator
Alliance for Clinical Trials in Oncology	National Cancer Institute (NCI)

Country where clinical trial is conducted

United States, 

References & Publications (1)

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):14 — View Citation

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Response rate and duration		Up to 5 years	No
Primary	Disease-regression		Up to 5 years	Yes