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Sensitivity of Fecal Immunochemical Test (FIT) for Colorectal Cancer (CRC) Screening

ABSTRACT: Fecal immunochemical test (FIT) was introduced in France late 2015, FIT has better diagnostic accuracy for colorectal cancers (CRCs) than previous screening tests. Our primary objective was to evaluate the sensitivity of FIT and the proportion of interval cancer.

DISEASE(S): Colorectal Neoplasms Malignant,Mass Screening,Colonoscopy,Middle Aged,Early Detection Of Cancer,Colorectal Neoplasms,Occult Blood,Neoplasms

PROVIDER: 2398790 | ecrin-mdr-crc |

REPOSITORIES: ECRIN MDR

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Molecular analysis of FIT interval colorectal cancers

Project description:To optimize a fecal immunochemical test-based screening program, the rate of missed colorectal cancers (CRCs), so-called FIT-interval CRCs, should be minimized. A specific molecular make-up of those CRCs could be an explanation for those interval CRCs. Knowledge of the molecular make-up of these missed lesions could facilitate more accurate detection of all precursor lesions. In this study we aimed to compare the molecular make-up of FIT-interval CRCs and screen-detected CRCs (SD-CRCs).

| EGAS00001004683 | EGA

Fe-FIT-Diff

Project description:au13-06_fit - Fe-FIT-Diff - FIT (FER-LIKE IRON DEFICIENCY-INDUCED TRANSCRIPTION FACTOR) is a regulator of Fe deficiency responses in the root. FIT is a basic helix-loop-helix protein. Here, we investigated the transcriptome changes in response to Fe deficiency (- Fe) versus the control condition (+ Fe) in wild type, the fit-3 loss of function mutant and in FIT overexpression plants.

2015-02-14 | GSE65934 | GEO

Geographically Clustered Mailing of Fecal Immunochemical Test (FIT) Kits

Project description:This is a pragmatic, randomized, controlled trial of a geographically randomized intervention in which all eligible patients will receive a mailed fecal immunochemical test (FIT) kit (the GeoMail study). In this study, all ZIP Codes in Dallas County will be randomized to either treatment or usual care. Patients in treated neighborhoods will receive kits at the same time; patients in usual care neighborhoods will receive FIT kits randomly throughout the year. All eligible patients will receive a FIT kit each year. The trial will be conducted in a racially and socioeconomically diverse cohort of patients served by an integrated safety net delivery system. This study represents a pragmatic adaptation to the "FIT first" population health screening strategy in which all eligible patients are mailed FIT kits. All patients will also have access to whatever colorectal cancer (CRC) screening is recommended through usual visit-based care.

| 2287757 | ecrin-mdr-crc

fe-fit-diff_6d-Differential gene expression in A. thaliana roots depending on iron supply and FIT (FER-LIKE IRON DEFICIENCY-INDUCED TRANSCRIPTION FACTOR) abundance

Project description:au15-01_iron-fit - fe-fit-diff_6d - Changes in gene expression profiles between fit knock-out, wild-type and FIT overexpressor seedlings under sufficient iron supply and under iron deficiency. - Col-0, HA-FIT and fit-3.

2016-07-01 | GSE80281 | GEO

fe-fit-diff_6d-Differential gene expression in A. thaliana roots depending on iron supply and FIT (FER-LIKE IRON DEFICIENCY-INDUCED TRANSCRIPTION FACTOR) abundance

2016-07-01 | E-GEOD-80281 | biostudies-arrayexpress

Novel stool-based protein biomarkers for improved colorectal cancer screening

Project description:Fecal immunochemical tests (FIT) detecting hemoglobin in stool are widely used for non-invasive colorectal cancer (CRC) screening, but their sensitivity leaves room for improvement. Our aim is to identify novel protein biomarkers in stool that outperform or complement hemoglobin in detecting CRCs and advanced adenomas (AAs). Stool samples (one series of 12 CRCs and 10 controls, and a second series of 81 CRCs, 40 AAs, 43 non-advanced adenomas and 129 controls) were analyzed by mass-spectrometry and searched for human proteins. Classification and regression tree and logistic regression analyses were performed to identify protein combinations that differentiated CRCs and/or AAs from controls. Antibody-based assays for four selected proteins were performed on an independent series of FIT samples (14 CRCs, 16 AAs, 18 non-advanced adenomas and 24 controls) Results: In total, 834 human proteins were identified, of which 29 were significantly enriched in CRCs versus controls in both stool sample series. Combinations of four proteins reached sensitivities of 80% and 45% for detecting CRCs and AAs, at 95% specificity, which was higher than hemoglobin alone.

2020-05-26 | PXD007767 | Pride

Diagnostic sensitivity analysis of the immunochemical fecal occult blood test for colorectal cancers

Project description:Interventions: Immunochemical fecal occult blood test (FIT) using OC sensor io (Eiken co) Primary outcome(s): Diagnostic sensitivity of immunochemical fecal occult blood test (FIT) for colorectal cancers based on the location, staging, tumor size and macroscopic types. Study Design: Single arm Non-randomized

| 2624966 | ecrin-mdr-crc

The fecal immunochemical test (fit): Selected aspects regarding its effectiveness for colorectal cancer screening in Quebec City.

Project description:Background and aims:FIT's value has been ascertained across Canada and worldwide, but still needs to be assessed within the province of Quebec. There also remains a gap between formal indications for FIT, and its actual use in clinical practice. This research aims to evaluate some aspects of FIT's effectiveness in our setting, and its application by prescribers. Methods:We retrospectively identified and reviewed all the colonoscopies conducted for a positive FIT in 2014 at 2 hospitals located in Quebec City. Results:Five hundred and fifty-nine (559) colonoscopies were reviewed. We obtained PPVs of 6.8% and 46.9% for the detection of CRC and AA, respectively. The PPV for the detection of SCL was higher in men compared to women (OR 1.56, 95%CI 1.11-2.20) and among justified FITs compared to unwarranted ones (OR 1.88, 95%CI 1.34-2.63). The PPV for CRC detection was 25.0% in the presence of unexplained iron deficiency anemia and 6.5% when anemia was absent (p?=?0.0058). In 49.9% of cases, the prescription of a FIT was inappropriate. Conclusion:The FIT holds a better PPV for detecting SCL among men and when it is indicated. Anemia is associated with a higher CRC detection rate. Half of the FITs were not initially indicated.

| S-EPMC6082993 | biostudies-literature

Feasibility and performance of the fecal immunochemical test (FIT) for average-risk colorectal cancer screening in Nigeria.

Project description:IntroductionThere is a paucity of prospective data on the performance of the fecal immunochemical test (FIT) for colorectal cancer (CRC) screening in sub-Saharan Africa. The aim of this exploratory analysis was to evaluate the feasibility and performance of FIT in Nigeria.MethodsThis was a prospective, single-arm study. A convenience sample of asymptomatic, average-risk individuals between 40-75 years of age were enrolled at Obafemi Awolowo University Teaching Hospital. Study participants returned in 48 hours with a specimen for ova and parasite (O&P) and qualitative FIT (50ug/g) testing. Participants with a positive FIT had follow-up colonoscopy and those with intestinal parasites were provided treatment.ResultsBetween May-June 2019, 379 individuals enrolled with a median age of 51 years (IQR 46-58). In total, 87.6% (n = 332) returned for FIT testing. FIT positivity was 20.5% (95% CI = 16.3%-25.2%). Sixty-one (89.7%) of participants with a positive FIT had a follow-up colonoscopy (n = 61), of whom 9.8% (95%CI:3.7-20.2%) had an adenoma and 4.9% (95%CI:1.0-13.7%) had advanced adenomas. Presence of intestinal parasites was inversely related to FIT positivity (6.5% with vs. 21.1% without parasites, p = 0.05). Eighty-two percent of participants found the FIT easy to use and 100% would recommend the test to eligible family or friends if available.ConclusionsAsymptomatic, FIT-based CRC screening was feasible and well tolerated in this exploratory analysis. However, the high FIT positivity and low positive predictive value for advanced neoplasia raises concerns about its practicality and cost effectiveness in a low-resource setting such as Nigeria.

| S-EPMC7802943 | biostudies-literature

Quantitative Versus Qualitative Fecal Immunochemical Tests (FIT) to Prioritize Urgency of Colonoscopy Referral

Project description:The main aim of this study is to determine whether there is a difference in time to diagnosis of advanced colorectal neoplasms using quantitative Fecal Immunochemical Tests (FIT) to prioritize referral for colonoscopy (intervention) compared to usual care (qualitative FIT and appointment-based referral).

| 2158887 | ecrin-mdr-crc

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