Colon Cancer Prevention Using Selenium

NCT ID: NCT01211561

Last Updated: 2010-09-29

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

UNKNOWN

Clinical Phase

EARLY_PHASE1

Total Enrollment

50 participants

Study Classification

INTERVENTIONAL

Study Start Date

2010-12-31

Study Completion Date

2016-12-31

Brief Summary

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Selenium's ability to prevent colorectal cancer (CRC) has been suspected for nearly 30 years, but has never been directly studied in humans. The investigators will directly assess selenium's ability to prevent CRC by measuring alterations in aberrant crypt foci (ACF), an accepted surrogate marker for CRC.

ACF's are very small (i.e., microscopic) collections of abnormally shaped cells that are a commonly used marker of CRC risk. Screening colonoscopy at UIC routinely uses methods that allow ACF counting to be done as a part of standard practice. ACF's are not fixed, like polyps or cancers, but can disappear as a person's risk for developing CRC decreases.

The investigators propose giving patient's with 6 or more ACF's 200 mcg selenized yeast or placebo, and determining if there is a drug-dependant decrease in ACF number. The primary objective is to determine whether selenized yeast supplementation, compared to placebo, causes significant reduction of ACF number from baseline levels. The primary endpoint will be change in ACF number

Detailed Description

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Conditions

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Prevention of Colorectal Cancer

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

SINGLE_GROUP

Primary Study Purpose

PREVENTION

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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Selenium, selenomethionine

Group Type EXPERIMENTAL

Selenium, selenomethionine

Intervention Type DRUG

Patients will receive one 200 ug pill of Selenomethionine

placebo

Group Type ACTIVE_COMPARATOR

placebo

Intervention Type DRUG

Patients will be given one 200 ug placebo pill each day for 6 months

Interventions

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Selenium, selenomethionine

Patients will receive one 200 ug pill of Selenomethionine

Intervention Type DRUG

placebo

Patients will be given one 200 ug placebo pill each day for 6 months

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

\- All non-pregnant patients \>50 years of age

Exclusion Criteria

* The following will be specifically looked for, and result in patients not being eligible for study enrollment:

* Use of non-steroidal anti-inflammatory drugs or glucocorticosteroids within 60 days of study entry.
* History of chronic IBD or prior pelvic radiation (inflammation distorts crypt pattern).
* Intake of any selenium supplements within 60 days of study entry, including vitamins.
* Patients with increased bleeding risk from biopsy protocol (i.e. renal failure, decompensated cirrhosis, blood dyscrasia).
Minimum Eligible Age

50 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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University of Illinois at Chicago

OTHER

Sponsor Role lead

Responsible Party

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University of Illinois

Principal Investigators

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Richard V Benya, MD

Role: PRINCIPAL_INVESTIGATOR

University of Illinois at Chicago

Locations

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University of Illinois at Chicago Medical Center

Chicago, Illinois, United States

Site Status

Countries

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United States

Central Contacts

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John A O'Toole, BA

Role: CONTACT

Phone: 312-413-2446

Email: [email protected]

Facility Contacts

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John OToole, BA

Role: primary

Other Identifiers

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2008-1122

Identifier Type: -

Identifier Source: org_study_id