A Prospective Study of a New Immunochemical Fecal Occult Blood Test in U.S. Veteran Patients Undergoing Colonoscopy

Status

UNKNOWN

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT00533975

Enrollment

500

Registered

2007-09-24

Start date

2007-09-30

Completion date

2008-12-31

Last updated

2007-09-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Colon Cancer

Keywords

Colon Cancer screening, immunofecal occult blood test, colonoscopy, diagnostic validity

Brief summary

The purpose of our study is to evaluate the diagnostic validity of a new immunofecal occult blood test (IFOBT) (Teco Diagnostics) in U.S. veterans and to compare it with the guaiac based FOBT.

Detailed description

Colorectal cancer (CRC) is the third most common cancer in men and women in the United States with an estimated 147,000 new cases and more than 56,000 deaths each year. Early detection of colon cancer and removal of precancerous adenomatous polyps have been shown to reduce its morbidity, mortality and incidence. There are several recommended CRC screening tests, including fecal occult blood test (FOBT), flexible sigmoidoscopy, air-contrast barium enema, and colonoscopy. In the VA, FOBT is the predominant screening test for CRC. Numerous randomized controlled trials have established the efficacy of FOBT in CRC screening. Its advantages include privacy, noninvasiveness, and cost-effectiveness. Use of guaiac-based testing, however, is hampered by low patient compliance, sensitivity, specificity, and positive predictive value. The poor patient compliance, and low specificity and positive predictive value, may be related to the testing procedure. For example, dietary and medication restrictions are recommended to decrease false-negative and false-positive tests. Such restrictions may impede patient compliance. Recently, several studies have evaluated the effectiveness immunochemical-based testing as a potential alternative, with reportedly better compliance, sensitivity, and specificity than guaiac-based tests. The purpose of our study is to evaluate the diagnostic validity of a new IFOBT (Teco Diagnostics) in U.S. veterans and to compare it with the guaiac based FOBT.

Interventions

None listed

Study design

Observational model

DEFINED_POPULATION

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Yes

Inclusion criteria

* Patients (men or women) that are \>18 years of age undergoing colonoscopy for a variety of indications (bleeding, diarrhea, weight loss, anemia, abdominal pain, etc)

Exclusion criteria

* concurrent hospitalization * visible rectal bleeding * known diagnosis of inflammatory bowel disease * hematuria * menstruation at the time of obtaining a stool specimen and performing the tests * inability to prepare the 3 different IFOBT or 3 different FOBT kits

Countries

United States

Contacts

Primary ContactJeffrey K Lee, B.A.

jklee@ucsd.edu510-847-1198

Outcome results