Prostate CancerPhase 2NCT00005828
Green Tea Extract in Treating Patients With Metastatic Prostate Cancer That Has Not Responded to Hormone Therapy
A Phase 2 study testing green tea extract in people with Prostate Cancer, run by Alliance for Clinical Trials in Oncology at 16 sites in United States.
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. Read more about this study
- Who is it for?
- Ages 18 years and older, men only
- Conditions the study is for
- Prostate Cancer
- What is being tested?
- green tea extract
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 54 participants
- Where
- 16 sitesUnited States
- Study dates
- Dec 2000to Jun 2008
- Phase
- Phase 2
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- Men only
- No healthy volunteers
- Adult, Older adult
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
Trial locations and contacts
16 sites in 1 country.
16 sites in 1 country
United States16 sites
Medcenter One Health System
Bismarck, North Dakota, 58501
CCOP - Cedar Rapids Oncology Project
Cedar Rapids, Iowa, 52403-1206
CCOP - Iowa Oncology Research Association
Des Moines, Iowa, 50309-1016
CCOP - Duluth
Duluth, Minnesota, 55805
CCOP - Merit Care Hospital
Fargo, North Dakota, 58122
CCOP - Missouri Valley Cancer Consortium
Omaha, Nebraska, 68131
CCOP - Illinois Oncology Research Association
Peoria, Illinois, 61602
Rapid City Regional Hospital
Rapid City, South Dakota, 57709
Mayo Clinic Cancer Center
Rochester, Minnesota, 55905
CCOP - Metro-Minnesota
Saint Louis Park, Minnesota, 55416
CCOP - Scottsdale Oncology Program
Scottsdale, Arizona, 85259-5404
Siouxland Hematology-Oncology
Sioux City, Iowa, 51101-1733
CCOP - Sioux Community Cancer Consortium
Sioux Falls, South Dakota, 57105-1080
CCOP - Toledo Community Hospital Oncology Program
Toledo, Ohio, 43623-3456
CCOP - Carle Cancer Center
Urbana, Illinois, 61801
CCOP - Wichita
Wichita, Kansas, 67214-3882
About this study
Official title: A Phase II Trial of Green Tea Extract in the Treatment of Androgen-Independent Metastatic Prostate Cancer
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.
Read the 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.
- Conditions
- Prostate Cancer
- Being tested
- green tea extract
- Keywords
- stage IV prostate cancer, recurrent prostate cancer
- Medical subject headings
- Prostatic Neoplasms
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
green tea extractDietary supplement
| Study group | Role | What they receive |
|---|---|---|
| green tea extract | Experimental | 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. Receives: Dietary Supplement: green tea extract |
What is being measured
The primary outcome is the main question the study is designed to answer.
Response rate and duration
Measured: Up to 5 years
Disease-regression
Measured: Up to 5 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted20 Apr 2004 (estimated)
- Study startDec 2000
- Primary completionMar 2003
- Study completionJun 2008
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Prostate CancerStudies of the same condition, open and under way.
- More trials run by Alliance for Clinical Trials in OncologyThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 2
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 54 participants (actual)
Sponsor and investigators
- Lead sponsor
- Alliance for Clinical Trials in Oncology
- Sponsor type
- University, hospital or other
- Collaborators
- National Cancer Institute (NCI)
- Responsible party
- Sponsor
- Investigators
- Aminah Jatoi, MD, Study chair, Mayo Clinic
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00005828
- Sponsor's protocol ID
- NCCTG-N9951
- Other IDs
- CDR0000067842
- Status last verified
- Jul 2016
- First submitted
- 2 Jun 2000
- Last updated
- 13 Jul 2016
- Results posted
- No
- Data monitoring committee
- No
Publications
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.
PubMed 12627508
Study at a glance
From the registry record, last updated by the sponsor on 13 Jul 2016. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Phase II Trial of Green Tea Extract in the Treatment of Androgen-Independent Metastatic Prostate Cancer
- ClinicalTrials.gov ID
- NCT00005828
- Acronym / sponsor ID
- NCCTG-N9951
- Conditions
- Prostate Cancer
- Keywords
- stage IV prostate cancer, recurrent prostate cancer
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 54 participants (actual)
- Lead sponsor
- Alliance for Clinical Trials in OncologyUniversity, hospital or other
- Collaborators
- National Cancer Institute (NCI)
- Study start
- Dec 2000
- Primary completion
- Mar 2003 (actual)
- Study completion
- Jun 2008 (actual)
- First posted
- 20 Apr 2004 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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.
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| green tea extract | Experimental | Dietary Supplement: green tea extractPatients 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. |
Who may qualify
- Ages
- 18 years and older
- Sex
- Male only
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| green tea extract | Dietary supplement | green tea extract |
Primary outcome
Response rate and duration
Time frame: Up to 5 years
Disease-regression
Time frame: Up to 5 years
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 13 Jul 2016.
- Results publication: PubMed 12627508Jatoi 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.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Aminah Jatoi, MD study chair
Mayo Clinic
16 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing green tea extract in people with Prostate Cancer, run by Alliance for Clinical Trials in Oncology at 16 sites in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 13 Jul 2016. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 16 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Response rate and duration (time frame: Up to 5 years). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT00005828, which also lists 1 linked publication.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 13 Jul 2016.