Colorectal Cancer Screening in Familiar-Risk Population: Immunochemical Fecal Occult Blood Testing Versus Colonoscopy (COLONFAM)
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Purpose
This study is aimed: 1) to compare the accuracy of colonoscopy vs immunochemical faecal occult blood test (iFOBT) and colonoscopy when positive for colorectal cancer (CRC) screening in familiar-risk population and; 2) to determine the complications associated with both strategies.
| Condition | Intervention | Phase |
|---|---|---|
|
Colorectal Cancer |
Procedure: Immunochemical fecal occult blood test And colonoscopy if test is positive Procedure: Colonoscopy with sedation |
Phase 3 |
| Study Type: | Interventional |
| Study Design: | Allocation: Randomized Endpoint Classification: Safety Study Intervention Model: Parallel Assignment Masking: Open Label Primary Purpose: Prevention |
| Official Title: | Colorectal Cancer Screening in Familiar-Risk Population: a Randomized Control Trial Comparing Immunochemical Fecal Occult Blood Testing Versus Colonoscopy |
- Advanced colorectal neoplasm detection rate [Time Frame: 2 years] [Designated as safety issue: No] [ Time Frame: 2 years ] [ Designated as safety issue: No ]
- Complications rate [ Time Frame: 2 years ] [ Designated as safety issue: No ]
| Enrollment: | 1501 |
| Study Start Date: | September 2008 |
| Estimated Study Completion Date: | December 2012 |
| Primary Completion Date: | December 2011 (Final data collection date for primary outcome measure) |
| Arms | Assigned Interventions |
|---|---|
|
Experimental: Fecal occult blood testing
Immunochemical fecal occult blood test Annual (2 rounds), without diet restriction, 1 stool sample. Positive cut-off level: 50 ng/ml.
|
Procedure: Immunochemical fecal occult blood test And colonoscopy if test is positive
Annual (2 rounds), without diet restriction, 1 stool sample. Positive cut-off level: 50 ng/ml.
|
|
Active Comparator: Colonoscopy
Colonoscopy with sedation.
|
Procedure: Colonoscopy with sedation
Colonoscopy with sedation
|
Detailed Description:
This is an observational, controlled, randomized phase III study to evaluate the effectiveness of the iFOBT for detecting advanced neoplasia (polyps > 1cm in size, high grade dysplasia or with villous component, or CRC) in first degree relatives of patients with CRC.
Index cases will be interviewed to obtain the family tree and their first-degree relatives will be contacted to invite them to participate in the study. Index-cases, will be randomized into one of the following two groups in order that their relatives receive the same screening strategy: A) colonoscopy; or B) annual iFOBT test (OC-Sensor®, cut off ≥50 ng/ml) and colonoscopy if positive. To determine the sensitivity and specificity of the iFOBT strategy, individuals randomized to group B will be invited to undergo a complete colonoscopy following two years follow-up. In addition, epidemiological data, personal history of disease, family history of neoplasm, characteristics of lesions at colonoscopy and histological diagnosis will be recorded.
To test the hypothesis of equivalence between the iFOBT test and colonoscopy for detecting advanced colorectal neoplasm, it was considered a probability of participation, detection capability and prevalence of advanced adenomas for iFOBT of 0.750, 0.565 and 0.077, respectively, being the product of them 0.033. In the case of colonoscopy, the likelihood of participation, detection capability and prevalence of advanced adenomas in this population at risk are 0,500, 0.965 and 0.077, respectively, and their product 0.037. Accordingly, for a Type I error (alpha) of 5%, a power of 80% and a maximum deviation between the probabilities of the two tests of 0.03 the number of subjects to be included per arm is 744
Eligibility| Ages Eligible for Study: | 40 Years to 75 Years |
| Genders Eligible for Study: | Both |
| Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Men and women aged 40-75 years, first degree relatives of patients with non-syndromic CRC
Exclusion Criteria:
- Personal history of CRC, colorectal adenoma, colorectal polyposis, or inflammatory bowel disease
Contacts and Locations| Spain | |
| Hospital Universitario de Canarias | |
| Tenerife, Spain, 38320 | |
| Study Director: | Enrique Quintero, MD | Fundación Canaria para la Investigación Biomédica Rafael Clavijo |
More Information
Publications:
| Responsible Party: | Enrique Quintero, PhD, Fundación Canaria Rafael Clavijo para la Investigación Biomédica |
| ClinicalTrials.gov Identifier: | NCT01075633 History of Changes |
| Other Study ID Numbers: | COLONFAM |
| Study First Received: | February 24, 2010 |
| Last Updated: | October 18, 2012 |
| Health Authority: | Spain: Spanish Agency of Medicines |
Keywords provided by Fundación Canaria Rafael Clavijo para la Investigación Biomédica:
|
FOBT colonoscopy familiar risk colorectal cancer advanced adenoma |
Additional relevant MeSH terms:
|
Colorectal Neoplasms Intestinal Neoplasms Gastrointestinal Neoplasms Digestive System Neoplasms Neoplasms by Site Neoplasms |
Digestive System Diseases Gastrointestinal Diseases Colonic Diseases Intestinal Diseases Rectal Diseases |
ClinicalTrials.gov processed this record on May 23, 2013