Effects of a Genistein Concentrated Polysaccharide (GCP) for Prostate Cancer on Active Surveillance.

NCT ID: NCT00584532

Last Updated: 2023-11-24

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE2/PHASE3

Total Enrollment

66 participants

Study Classification

INTERVENTIONAL

Study Start Date

2003-11-30

Study Completion Date

2007-12-31

Brief Summary

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Genistein Combined Polysaccharide (GCP) may play a role as a secondary chemopreventive agent in the treatment of localized prostate cancer.

Detailed Description

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Conditions

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Prostate Cancer

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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A

A=Placebo ARM of Study

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

10 Placebo Capsules taken orally every day.

B

B=GCP Capsules. Ten 500 mg capsules per day for a total of 5 grams a day.

Group Type ACTIVE_COMPARATOR

GCP - Genistein Combined Polysaccharide

Intervention Type DRUG

Ten 500 mg capsules given orally per day. Total of 5 grams per day per patient.

Interventions

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Placebo

10 Placebo Capsules taken orally every day.

Intervention Type DRUG

GCP - Genistein Combined Polysaccharide

Ten 500 mg capsules given orally per day. Total of 5 grams per day per patient.

Intervention Type DRUG

Other Intervention Names

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Placebo capsules (contain cellulose only)

Eligibility Criteria

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Inclusion Criteria

* Participants must be male and have a pathological diagnosis of prostate cancer
* Pathological diagnosis of prostate cancer must be confirmed and on file with CRA prior to study entry.
* No treatment (surgery, radiation, or hormones) prior to study entry.
* PSA between 2.0 and 10.0 ng/ml.
* If PSA is \>10.0, patient must have been on Active Surveillance for 12 months prior to study initiation.
* No known allergy to soy or soy products.
* The patient is not currently taking more than 2 grams of genistein a day in nutritional or diet enhancing supplements (OTC supplements).
* Participant has not been on any previous GCP clinical trial.
* Normal Chemistry values prior to study entry.

Exclusion Criteria

* No pathological documentation of prostate cancer.
* Prior treatment for prostate cancer.
* PSA \>10.0 ng/ml but not on Active Surveillance for 12 months.
* Allergy to soy or soy products.
* Abnormal chemistry values.
Eligible Sex

MALE

Accepts Healthy Volunteers

No

Sponsors

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University of California, Davis

OTHER

Sponsor Role lead

Responsible Party

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University of California, Davis - Department of Nutrition

Principal Investigators

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Robert Hackman, MD

Role: PRINCIPAL_INVESTIGATOR

University of California, Davis - Dept. of Nutrition

Other Identifiers

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281609

Identifier Type: -

Identifier Source: org_study_id