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Green Tea Extract for Prostate Cancer

Phase 2
Recruiting
Led By Nagi Kumar, PhD, RD, FADA
Research Sponsored by H. Lee Moffitt Cancer Center and Research Institute
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
Age 18 years or older
Gleason score (3+3) or predominant Gleason pattern 3 (3+4)
Timeline
Screening 3 weeks
Treatment Varies
Follow Up 24 months
Awards & highlights

Study Summary

This trial will evaluate the safety, effectiveness and bioavailability of a standardized Green Tea Catechin formulation given over 24 months to men with low- to intermediate-grade prostate managed on active surveillance.

Who is the study for?
Men 18 or older with low to intermediate grade prostate cancer managed on active surveillance can join. They must have a PSA <10 ng/mL, no history of serious kidney or liver disease, and agree to limit tea intake and not use other vitamin/mineral supplements during the trial. Prior treatments for prostate cancer or recent use of certain medications disqualify participation.Check my eligibility
What is being tested?
The study is testing Sunphenon (a green tea extract) against a placebo over two years to see if it's safe and effective in men with prostate cancer who are being closely monitored but not actively treated. The trial randomly assigns participants to either the supplement or placebo group without them knowing which one they're getting.See study design
What are the potential side effects?
While specific side effects aren't listed, potential reactions could include those commonly associated with dietary supplements such as digestive discomfort, allergic reactions for those sensitive to tea components, and possible interactions with other medications.

Eligibility Criteria

Inclusion Criteria

You may be eligible if you check “Yes” for the criteria below
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I am 18 years old or older.
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My prostate cancer has a Gleason score of 3+3 or 3+4.
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I am willing to stop my current vitamins and use those provided by the study.
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My prostate cancer was confirmed by a biopsy.
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I have not received any treatment for prostate cancer before.
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I am fully active or can carry out light work.
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I have no history of kidney or liver diseases, including hepatitis B or C.

Timeline

Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~24 months
This trial's timeline: 3 weeks for screening, Varies for treatment, and 24 months for reporting.

Treatment Details

Study Objectives

Outcome measures can provide a clearer picture of what you can expect from a treatment.
Primary outcome measures
Rate of Progression to Prostate Cancer (PCa)
Secondary outcome measures
Acceptability of Green Tea Catechins vs.Placebo
Adherence of Green Tea Catechins vs.Placebo
Change in (prostate-specific antigen) PSA and PSA kinetics
+3 more

Trial Design

2Treatment groups
Experimental Treatment
Placebo Group
Group I: Sunphenon® 90DExperimental Treatment1 Intervention
Participants will be administered a standardized formulation of whole Green Tea Catechin for 24 months. The daily dose of Green Tea Catechin will be taken in divided doses, three capsules in the morning and 3 capsules in the evening, with food (within one hour of eating a substantial meal). On the day of monthly follow-up visit, capsules should be taken within 4 hours of visit and blood draw for required lab work. If the participant is scheduled to come in the afternoon, dose should be taken with lunch that day instead of with dinner for that day.
Group II: PlaceboPlacebo Group1 Intervention
Participants will be administered a placebo for 24 months. The daily dose of placebo will be taken in divided doses, three capsules in the morning and 3 capsules in the evening, with food (within one hour of eating a substantial meal). On the day of monthly follow-up visit, capsules should be taken within 4 hours of visit and blood draw for required lab work. If the participant is scheduled to come in the afternoon, dose should be taken with lunch that day instead of with dinner for that day.

Find a Location

Who is running the clinical trial?

H. Lee Moffitt Cancer Center and Research InstituteLead Sponsor
542 Previous Clinical Trials
135,357 Total Patients Enrolled
27 Trials studying Prostate Cancer
4,049 Patients Enrolled for Prostate Cancer
National Cancer Institute (NCI)NIH
13,663 Previous Clinical Trials
40,925,770 Total Patients Enrolled
560 Trials studying Prostate Cancer
506,960 Patients Enrolled for Prostate Cancer
Nagi Kumar, PhD, RD, FADAPrincipal InvestigatorMoffitt Cancer Center

Media Library

Placebo Clinical Trial Eligibility Overview. Trial Name: NCT04300855 — Phase 2
Prostate Cancer Research Study Groups: Sunphenon® 90D, Placebo
Prostate Cancer Clinical Trial 2023: Placebo Highlights & Side Effects. Trial Name: NCT04300855 — Phase 2
Placebo 2023 Treatment Timeline for Medical Study. Trial Name: NCT04300855 — Phase 2

Frequently Asked Questions

These questions and answers are submitted by anonymous patients, and have not been verified by our internal team.

How many participants are being allowed to join this experiment?

"That is correct, the information on clinicaltrials.gov currently says that this study is still looking for patients to enroll. The trial was originally posted on 8/21/2020 and has been edited as recently as 9/30/2022. So far, 135 patients have enrolled at the 1 location."

Answered by AI

Has Sunphenon been cleared by the FDA?

"Sunphenon has received a safety score of 2. This is due to the fact that it is only in Phase 2, meaning while there is some evidence supporting its safety, there is no data affirming its effectiveness."

Answered by AI

What are some of the issues that Sunphenon has been shown to be effective in treating?

"Sunphenon is most commonly used to help patients who are not immunocompromised. Additionally, this medication can be taken as a treatment for other conditions like weight loss, condylomata acuminata, and reducing diet."

Answered by AI

Are new volunteers being accepted for this research project?

"Yes, you are correct. The clinical trial is still recruiting patients and was last updated on 9/30/2022. It began enrolling participants on 8/21/2020 at a single medical centre but needs 135 total subjects."

Answered by AI
~33 spots leftby Jun 2025