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Optimized-dose Amoxicillin Versus Standard-dose Amoxicillin for Quadruple Therapy in Helicobacter Pylori Eradication

Prospective Randomized Trial: Comparison Between Optimized-dose Amoxicillin and Standard-dose Amoxicillin for Quadruple Therapy in the Treatment of Helicobacter Pylori Infection in Tunisian Patients

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05635942
Acronym
Helicomatri
Enrollment
88
Registered
2022-12-02
Start date
2019-01-29
Completion date
2022-11-01
Last updated
2022-12-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Helicobacter Pylori

Keywords

Disease Eradication

Brief summary

The goal of this prospective randomized clinical trial is to compare the rate of Helicobacter Pylori (HP) eradication after standard or dose-optimized amoxicillin quadritherapy in patients naïve to any anti-HP treatment and with chronic HP infection documented by histological examination. The main questions it aims to answer are: * compare the eradication rate of H.Pylori after a standard concomitant quadritherapy with 2g of amoxicillin versus an optimized quadritherapy with 3g of amoxicillin, in Tunisian population * Identify different factors associated with poor therapeutic response Patients were randomly assigned to either standard quadruple therapy (Qs-14: amoxicillin 1g twice daily, clarithromycin 500mg twice daily, metronidazole 500mg twice daily and esomeprazole 40mg twice daily for 14 days), or optimized quadruple therapy (Qo-14: amoxicillin 1g three times a day, clarithromycin 500mg twice daily, metronidazole 500mg twice daily and esomeprazole 40mg twice daily for 14 days). Eradication control was performed by urea breath test.

Detailed description

This study was a prospective, randomized, single-center study conducted in the hepato-gastroenterology department of Mahmoud Matri Hospital in Ariana, in collaboration with the bacteriology and biochemistry laboratory of the same hospital, the anatomopathology department of Abderrahmen Mami Hospital in Ariana, and the private clinical analysis laboratory Fendri. all patients aged from 18 and 65 years-old with H. pylori infection documented by pathological examination of per endoscopic gastric biopsies were recruited. This was a population of patients who had undergone upper endoscopy (UE) and in whom the search for H.Pylori was indicated, according to the European Maastrich IV recommendations. Eligible subjects were randomly assigned in a 1:1 ratio to receive either standard quadruple therapy (Qs-14) including : amoxicillin 1g twice daily ,clarithromycin 500mg twice daily ,metronidazole 500mg twice daily and esomeprazole (Medis Pharmaceutical Company) 40 mg twice daily for 14 days, or optimized quadruple therapy (Qo-14) including : amoxicillin 1g three times daily ,clarithromycin 500mg twice daily, metronidazole 500mg twice daily and esomeprazole 40 mg twice daily (Medis Pharmaceutical Company) for 14 days. Eradication control was performed by 13C-UBT at least 4 weeks after the end of the treatment.

Interventions

DRUGoptimized quadruple therapy

Association of amoxicillin 3 g/day + Esomeprazole, nitroimidazole and clarithromycin for 14 days

DRUGstandard quadruple therapy

Association of amoxicillin 2 g/day + Esomeprazole, nitroimidazole and clarithromycin for 14 days

Sponsors

Les Laboratoires des Médicaments Stériles
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Masking description

Technicians, who performed culture, antimicrobial susceptibility testing or urea breath test were blinded to treatment allocation.

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* H. pylori infection documented by pathological examination of per endoscopic gastric biopsies.

Exclusion criteria

* Previously received H.Pylori eradication therapy. Known allergy to one of the components of the kit used (Helikit) for 13C-urea breath test (UBT). * A contraindication to 13C-UBT. Allergy or contraindication to the following antibiotics: Amoxicillin, Clarithromycin, Metronidazole and quinolones. * Received antibiotics during the four weeks, or proton pump inhibitors (PPIs) during the two weeks prior to inclusion in the study. * A history of bariatric surgery. Active gastro intestinal bleeding. * Severe comorbidity such as decompensated cirrhosis, end-stage renal disease, decompensated cardiac disease and neoplastic disease. * Patients on long-term immunosuppressive or corticosteroid therapy at a dose greater than 20mg/day. * Pregnant or lactating women.

Design outcomes

Primary

MeasureTime frameDescription
HP eeradication rate6 weeks after treatment completionUrea Breath test (UBT) is performed no sooner than 6 weeks after completion of H pylori therapy. Use of PPIs should be discontinued for at least 2 weeks before administration of the UBT.

Secondary

MeasureTime frameDescription
prevalence of adverse reactions6 weeks after treatment completionThe percentage of patients reporting side effects during treatment and the following days until the evaluation of Hp eradication

Countries

Tunisia

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026