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Prostate CancerPhase 2NCT00058266

Genistein in Treating Patients With Localized Prostate Cancer Who Are Planning to Undergo Radical Prostatectomy

A Phase 2 study testing genistein and conventional surgery in people with Prostate Cancer, run by Northwestern University at 5 sites in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

RATIONALE: Genistein may stop the growth of cancer cells by blocking the enzymes necessary for cancer cell growth. PURPOSE: Phase II trial to study the effectiveness of genistein in treating patients with localized prostate cancer who are planning to undergo radical prostatectomy. 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?
genistein and conventional surgery
Could I receive a placebo?
No, everyone receives an active treatment
How many people
36 participants
Where
5 sitesUnited States
Study dates
Dec 2002to Sep 2009
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:

  • Diagnosis of localized prostate cancer
  • Diagnosed within the past 6 months
  • T1 or T2 disease
  • Gleason score 5-8
  • Prostate-specific antigen no greater than 20 ng/mL
  • Radical prostatectomy planned

PATIENT CHARACTERISTICS:

Age

  • 18 and over

Performance status

  • ECOG 0-1

Life expectancy

  • More than 2 years

Hematopoietic

  • Hemoglobin greater than 9.0 g/dL
  • Platelet count greater than 100,000/mm^3
  • Absolute neutrophil count greater than 1,000/mm^3

Hepatic

  • SGPT and SGOT less than 3 times normal
  • Bilirubin less than 3 mg/dL (less than 1.5 times normal) (patients with an elevated bilirubin due to a familial defect in bilirubin metabolism will be considered on an individual basis)

Renal

  • Creatinine less than 2.0 mg/dL

Cardiovascular

  • No venous thrombosis within the past year

Other

  • Patients must use effective barrier contraception
  • No other medical condition that would preclude study therapy
  • No known soy intolerance

PRIOR CONCURRENT THERAPY:

Biologic therapy

  • Not specified

Chemotherapy

  • Not specified

Endocrine therapy

  • No concurrent hormonal therapy for prostate cancer

Radiotherapy

  • Not specified

Surgery

  • See Disease Characteristics

Other

  • No concurrent soy supplements
  • No concurrent foods high in genistein
  • No concurrent active therapy for neoplastic disorders

Trial locations and contacts

5 sites in 1 country.

5 sites in 1 country

United States5 sites
  • Robert H. Lurie Comprehensive Cancer Center at Northwestern University

    Chicago, Illinois, 60611-3013

  • Veterans Affairs Medical Center - Lakeside Chicago

    Chicago, Illinois, 60611

  • Evanston Northwestern Healthcare - Evanston Hospital

    Evanston, Illinois, 60201-1781

  • Ingalls Cancer Care Center at Ingalls Memorial Hospital

    Harvey, Illinois, 60426

  • University of Washington School of Medicine

    Seattle, Washington, 98195

Other trials in United States

About this study

Official title: A Phase II Study Of Genistein In Patients With Localized Prostate Cancer (Molecular Correlates of Soy In Humans)

RATIONALE: Genistein may stop the growth of cancer cells by blocking the enzymes necessary for cancer cell growth.

PURPOSE: Phase II trial to study the effectiveness of genistein in treating patients with localized prostate cancer who are planning to undergo radical prostatectomy.

Read the detailed description

OBJECTIVES:

  • Determine the toxicity of genistein in patients with localized prostate cancer treated with radical prostatectomy.
  • Determine the decrease, if any, of prostate-specific antigen-positive cells in the operative field of patients treated with this drug.
  • Determine the quality of life of patients treated with this drug.

OUTLINE: Patients receive 1 of 2 treatment regimens.

  • Group A: Patients receive oral genistein once daily for 1-2 months, undergo radical prostatectomy, and then continue oral genistein once daily for 1-2 months afterward (for a total of 3 months of therapy).
  • Group B: Patients undergo radical prostatectomy. Beginning 1 month after surgery, patients receive genistein as in arm I for 3 months.

Quality of life is assessed at baseline and at 1 and 3 months after surgery.

Patients are followed every 3 months.

PROJECTED ACCRUAL: A total of 88 patients (44 patients per treatment group) will be accrued for this study within 2 years.

Conditions
Prostate Cancer
Being tested
genistein, conventional surgery
Keywords
stage I prostate cancer, stage II 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.

  • genisteinDietary supplement

    Given orally

  • conventional surgeryProcedure or surgery

    Patients undergo surgery

Study groups in NCT00058266
Study groupRoleWhat they receive
Group AExperimentalPatients receive oral genistein once daily for 1-2 months, undergo radical prostatectomy, and then continue oral genistein once daily for 1-2 months afterward (for a total of 3 months of therapy).
Receives: Dietary Supplement: genistein; Procedure: conventional surgery
Group BExperimentalPatients undergo radical prostatectomy. Beginning 1 month after surgery, patients receive genistein as in arm I for 3 months.
Receives: Dietary Supplement: genistein; Procedure: conventional surgery

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Toxicity

    Measured: At surgery & monthly thereafter during treatment (3 mos)

  2. Decrease in prostate-specific antigen-positive cells

    Measured: At time of surgery

  3. Alteration in cell morphology

    Measured: At time of surgery

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted9 Apr 2003 (estimated)
  2. Study startDec 2002
  3. Primary completionNov 2006
  4. Study completionSep 2009

Why it stopped: Data Monitoring Committee cited poor accrual.

Resources

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
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
36 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00058266
Sponsor's protocol ID
NU 00U7
Other IDs
NU-00U7
Status last verified
Jul 2012
First submitted
7 Apr 2003
Last updated
19 Jul 2012
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing genistein and conventional surgery in people with Prostate Cancer, run by Northwestern University at 5 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: stopped early, as of the sponsor's last update on 19 Jul 2012. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 5 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 was stopped early (reason given: Data Monitoring Committee cited poor accrual.). Results are not available in the source record.

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?

Toxicity (time frame: At surgery & monthly thereafter during treatment (3 mos)). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 19 Jul 2012.

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