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Prospective study to test whether the immunochemical fecal occult blood test (FIT) for colorectal cancer (CRC) helps to prioritize patients with iron deficiency anemia for colonoscopy.
Full description
This is a multicenter (two centers), prospective study to test the accuracy of FIT for CRC detection in patients with severe IDA and its potential value for prioritizing colonoscopy.
An appointment with a gastroenterologist will be scheduled for patients with IDA referred for upper gastrointestinal endoscopy or colonoscopy. The gastroenterologist will check the inclusion and exclusion criteria. Eligible patients will sign the informed consent to carry out the following procedures:
The hypothesis of the study is that one-time FIT is a useful tool for increasing the efficiency of colonoscopy and can be used to prioritize outpatient colonoscopy in patients with IDA. In order to calculate the sample size required for the study, the investigators have assumed that FIT is positive in 25% of cases with iron deficiency anemia and 20% of them would have an advanced colorectal neoplasia at colonoscopy whereas only 10% of advanced colorectal neoplasias would be found in the remaining 75% patients with a negative FIT. Considering a type I error (alpha) of 5%, a power of 80% and a percentage of losses of 15%, 550 patients will be necessary to include. The investigators estimate that approximately 15% of these patients (n=83) will have severe anemia.
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550 participants in 2 patient groups
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Marta Carrillo, MD, PhD
Data sourced from clinicaltrials.gov
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