Helicobacter Infections Clinical Trial
Official title:
Endofaster Test for Helicobacter Pylori Detection in Patients on Proton Pump Inhibitor Therapy: Prospective Validation
Verified date | April 2014 |
Source | Niso Biomed S.R.L. |
Contact | n/a |
Is FDA regulated | No |
Health authority | United Kingdom: National Health Service |
Study type | Observational |
H. pylori infection is the most important causative agent of gastritis, and subsequent atrophic gastritis. The endoscopic diagnosis of H. pylori infection relies on urease tests such as the Clo test. However, treatment with proton pump inhibitors (PPI) impairs the diagnostic yeld of urease tests. The EndoFaster test (NISO BioMed, Turin, Italy) is a new technology that has the advantage, over conventional urease tests, of a real-time analysis of the gastric juice that can provide information regarding Helicobacter pylori infection and pH value of the gastric contents. A well designed clinical study is therefore warranted to fully assess the performance of the EndoFaster test in detecting H. pylori infection in patients treated with PPI. We aim to perform a clinical study in an adult population in United Kingdom in order to determine the diagnostic accuracy of the Endo Faster test compared to the Clo test, histological diagnosis and the faecal antigen test in evaluating H.pylori infection. Patients on PPI will undergo a gastroscopy with multiple biopsies and during the exam NISO Biomed EndoFaster test, as well as the Clo test, will be carried out. H. pylori faecal antigen test will also be performed and used as gold standard. Diagnostic accuracy of the different methods will be determined.
Status | Not yet recruiting |
Enrollment | 150 |
Est. completion date | March 2015 |
Est. primary completion date | December 2014 |
Accepts healthy volunteers | No |
Gender | Both |
Age group | 18 Years to 65 Years |
Eligibility |
Inclusion Criteria: - Adult females and males over 45 years of age with dyspeptic symptoms (epigastric pain, bloating and epigastric discomfort) Exclusion Criteria: - Patients who require surgery or immediate follow-up treatment for major symptoms, including hematemesis, melena, acute epigastric pain - Patients who previously underwent upper gastrointestinal surgery - Patients with diabetes - Pregnant women - Subjects who refuse to participate or are unable to give consent |
Observational Model: Cohort, Time Perspective: Prospective
Country | Name | City | State |
---|---|---|---|
United Kingdom | Homerton University Hospital | London |
Lead Sponsor | Collaborator |
---|---|
Niso Biomed S.R.L. |
United Kingdom,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Diagnostic accuracy of the EndoFaster test in H. pylori diagnosis | Clinical specialist consultation will be performed and eligible patients will be enrolled and candidate to undergo a gastroscopy. On the day of the endoscopic procedure the patients will bring a stool sample for the detection of Helicobacter pylori antigen. Subsequently, a gastroscopy with multiple biopsies will be performed and during the exam NISO Biomed EndoFaster test, as well as the Clo test, will be carried out. Performance indicators (sensitivity, specificity, positive predictive value, PPV, negative predictive value, NPV and their 95%CI) of the EndoFaster test will be calculated, using the STATA/SE software. The area under ROC (Receiver Operating Characteristics) called AUC, will be identified. These ROC curves can be used to identify the optimal sensitivity/specificity balance that gives each biomarker an optimal threshold for detection of each study endpoint. Significance of the difference between AUC values can be estimated using STATA's roccomb test with 95%CI. |
Six weeks | No |
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