E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Diagnosis of Helicobacter pylori infection for patients taking proton pump inhibitors (PPI) with one day break of
medication instead of two weeks prior to the test |
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E.1.1.1 | Medical condition in easily understood language |
Diagnosis of Helicobacter pylori infection in patients taking medication without being able to stop Treatment longer than for one day. |
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E.1.1.2 | Therapeutic area | Analytical, Diagnostic and Therapeutic Techniques and Equipment [E] - Diagnosis [E01] |
MedDRA Classification |
E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
To confirm the sensitivity and specificity of the 13C-UBT using the new test meal for H. pylori in patients with dyspepsia and GERD taking PPI. |
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E.2.2 | Secondary objectives of the trial |
To compare the sensitivity and specificity of the 13C-UBT using the new test meal and standard test meal for H. pylori in patients with dyspepsia and GERD taking PPI.
To correlate the results of the Helicobacter Test INFAI® using new test meal for H. pylori in patients with dyspepsia and GERD taking PPI with:
• Histology score for H. pylori in antrum and corpus using the updated Sydney System,
• Sex,
• Age,
• Body Mass Index (BMI).
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
• Male and female patients of at least 18 years of age
• All acid-related disorders requiring long-term PPI treatment including functional dyspepsia and GERD according Rome IV classification
• Positive or negative standard 13C-UBT at screening.
• Diagnosis of H. pylori infection confirmed or excluded by combination of culture#, histology* and rapid** urease test (PyloriTek®, Serim Research Corp., Elkhart, USA) on samples obtained by endoscopy:
- True positive: culture and/or (histology and rapid urease test) are positive
- True negative: at least two tests are negative and culture is not positive
- True negative: culture not evaluable and both histology and urease test are negative.
- Patients will undergo upper endoscopy. Six biopsy samples will be obtained during this procedure.
#) Culture will be based on antrum and corpus 2 biopsies.
*) two biopsies ( corpus and antrum ) for histology
**) two biopsies ( corpus and antrum ) for Rapid urease test(RUT)
• Written informed consent of the patient.
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E.4 | Principal exclusion criteria |
• Previous H. pylori eradication therapy.
• Intake of PPI in 2 weeks, H2 receptor antagonists 1 day and NSAIDs, antibiotics, anti¬secretory drugs, bismuth compounds, or sucralfate in the 4 weeks prior to enrolment.
• Manifest coagulopathy or any other disorder according to which endoscopy and/or biopsies are contraindicated.
• Participation in a clinical trial with another not approved drug within 30 days before entering the study and/or previous participation in this study.
• Pregnancy
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E.5 End points |
E.5.1 | Primary end point(s) |
Co-primary efficacy variables:
• The proportion of H. pylori positive patients with positive new test result using a cut-off value of 2.5‰
• The proportion of H. pylori negative patients with negative new test result using a cut-off value of 2.5‰
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
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E.5.2 | Secondary end point(s) |
• The proportion of H. pylori positive patients with positive standard test result using a cut-off value of 4‰
• The proportion of H. pylori negative patients with negative standard test result using a cut-off value of 4‰
• The delta over baseline (DOB) or Δδ-value [‰] will be calculated from the difference of the 13CO2 / total CO2 ratio 30 min after intake of the urea-13C solution and at baseline.
• Coefficients of correlation between DOB and the histology score for H. pylori in antrum and corpus using the Updated Sydney System, sex, age and BMI.
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | Yes |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | No |
E.6.4 | Safety | No |
E.6.5 | Efficacy | No |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | Yes |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | Yes |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | Yes |
E.8.2.3.1 | Comparator description |
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E.8.2.4 | Number of treatment arms in the trial | 2 |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 2 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 5 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | No |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.7 | Trial has a data monitoring committee | No |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 0 |
E.8.9.1 | In the Member State concerned months | 9 |
E.8.9.1 | In the Member State concerned days | 0 |
E.8.9.2 | In all countries concerned by the trial years | 0 |
E.8.9.2 | In all countries concerned by the trial months | 9 |
E.8.9.2 | In all countries concerned by the trial days | 0 |