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Prostate CancerNCT00322114

Lycopene in Preventing Prostate Cancer in Healthy Participants

A study testing lycopene in people with Prostate Cancer, run by University of Illinois Chicago at 1 site in United States.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

RATIONALE: Chemoprevention is the use of certain drugs or substances to keep cancer from forming, growing, or coming back. The use of lycopene, a substance found in tomatoes, may keep prostate cancer from forming. Read more about this study

Who is it for?
Ages 18 years and older, men onlyHealthy volunteers can take part
Conditions the study is for
Prostate Cancer
What is being tested?
lycopene
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
150 participants
Where
1 siteUnited States
Study dates
Feb 2006to Feb 2009
Phase
Interventional
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
  • Healthy volunteers accepted
  • Adult, Older adult

DISEASE CHARACTERISTICS:

  • Healthy participants
  • No existing prostate disease

PATIENT CHARACTERISTICS:

  • Able to supply blood and urine samples
  • Able to answer demographic and dietary recall questionnaires
  • No hospital inpatients
  • Not allergic to tomatoes or tomato products
  • Not abusing alcohol or non-prescribed drugs
  • No existing gastrointestinal disease or cancer

PRIOR CONCURRENT THERAPY:

  • At least 2 weeks since prior lycopene (in supplement form)
  • No concurrent participation in another clinical trial

Trial locations and contacts

1 site in 1 country.

United States1 site, 1 recruiting
  • University of Illinois Cancer Center

    Chicago, Illinois, 60612-7243

    Clinical Trial Office - University of Illinois Cancer Center, 312-355-3046

    Recruiting

Other trials in United States

About this study

Official title: Mechanism of Prostate Cancer Prevention by Lycopene

RATIONALE: Chemoprevention is the use of certain drugs or substances to keep cancer from forming, growing, or coming back. The use of lycopene, a substance found in tomatoes, may keep prostate cancer from forming.

PURPOSE: This randomized clinical trial is studying how well lycopene works in preventing prostate cancer in healthy participants.

Read the detailed description

OBJECTIVES:

Primary

  • Determine whether lycopene supplementation affects percent free and bound prostate-specific antigen (PSA) in healthy participants.

Secondary

  • Determine whether lycopene reduces oxidative stress in these participants, as indicated by lipid peroxidation assay.
  • Determine whether a 21-day washout period is sufficient to return lycopene, PSA, and lipid peroxidation products to baseline.

OUTLINE: This is a randomized, placebo-controlled study. Participants are randomized to 1 of 3 treatment arms.

  • Arm I: Participants receive an oral tomato dietary supplement containing lycopene twice daily for 3 weeks.
  • Arm II: Participants receive an oral tomato dietary supplement containing lycopene at a higher dose twice daily for 3 weeks.
  • Arm III: Participants receive oral placebo twice daily for 3 weeks. Urine and blood samples are collected on days 0, 21, and 42.

PROJECTED ACCRUAL: A total of 150 participants will be accrued for this study.

Conditions
Prostate Cancer
Being tested
lycopene, placebo
Keywords
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.

  • lycopeneDietary supplement

    Given orally

  • placeboOther

    Given orally

Study groups in NCT00322114
Study groupRoleWhat they receive
Arm IExperimentalParticipants receive an oral tomato dietary supplement containing lycopene twice daily for 3 weeks.
Receives: Dietary Supplement: lycopene
Arm IIExperimentalParticipants receive an oral tomato dietary supplement containing lycopene at a higher dose twice daily for 3 weeks.
Receives: Dietary Supplement: lycopene
Arm IIIPlacebo comparatorParticipants receive oral placebo twice daily for 3 weeks.
Receives: Other: placebo

What is being measured

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

  1. Measurement of changes in percent free and total serum prostate-specific antigen (PSA) induced by lycopene

Timeline

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

  1. First posted4 May 2006 (estimated)
  2. Study startFeb 2006
  3. Primary completionFeb 2009 (estimated)

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 N/A
Primary purpose
Prevention
Allocation
Randomised
Enrolment
150 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00322114
Sponsor's protocol ID
CDR0000468031
Other IDs
UIC-2004-0217
Status last verified
Jul 2009
First submitted
3 May 2006
Last updated
20 Sep 2013
Results posted
No

Questions about this trial

What is this clinical trial studying?

A study testing lycopene in people with Prostate Cancer, run by University of Illinois Chicago at 1 site 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: status not confirmed, as of the sponsor's last update on 20 Sep 2013. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site 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. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Each site lists its own contact: choose the nearest one under Trial locations. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Measurement of changes in percent free and total serum prostate-specific antigen (PSA) induced by lycopene. 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 20 Sep 2013.

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