PMID- 38332683 OWN - NLM STAT- MEDLINE DCOM- 20240220 LR - 20240220 IS - 1523-5378 (Electronic) IS - 1083-4389 (Linking) VI - 29 IP - 1 DP - 2024 Jan-Feb TI - Eradication rate and adherence with high-dose amoxicillin and proton pump inhibitor as first-line treatment for Helicobacter pylori infection: Experience from University Hospital in Chile. PG - e13052 LID - 10.1111/hel.13052 [doi] AB - INTRODUCTION: In Chile, more than 70% of adults are infected by Helicobacter pylori. Clarithromycin should not be used in any regimen if there is >15% resistance to this antibiotic, being greater than 26% in our population. In this scenario, the effectiveness of triple therapy (proton pump inhibitor [PPI], clarithromycin, amoxicillin) was only 63.8%. AIM: To evaluate the eradication rate and safety of dual therapy (esomeprazole and amoxicillin) in high doses, through a prospective, observational, and descriptive study. METHODS: Patients with a positive urease test obtained in an upper digestive endoscopy were included. Any other previous H. pylori eradication regimen were excluded. All patients were treated with esomeprazole 40 mg three times a day and amoxicillin 750 mg four times a day for 14 days. The eradication rate of the dual therapy was evaluated with the H. pylori stool antigen test (the Pylori-Strip(R) test used) 6 weeks after completing the eradication treatment and with at least 14 days without PPI, being a negative result, confirmation of the effectiveness of this regimen. RESULTS: Of 122 patients, 106 had a negative H. pylori antigen in stool; The intention-to-treat and per protocol analysis, the eradication rates were 91.8% [95% CI: 87%-97%] and 94% [95% CI: 90%-98%], respectively. Four patients discontinued treatment due to adverse effects. Smoking and adherence to treatment were associated with eradication rate. CONCLUSIONS: In this cohort of patients with H. pylori infection, high-dose dual therapy has a high eradication rate and good adherence, raising the possibility that it could be used as first-line therapy in our country. Studies with a larger number of patients should confirm these results. CI - (c) 2024 John Wiley & Sons Ltd. FAU - von Muhlenbrock, Christian AU - von Muhlenbrock C AUID- ORCID: 0000-0001-5285-1147 AD - Digestive Diseases Center, Clinica Universidad de los Andes, Universidad de los Andes, Santiago, Chile. AD - Gastroenterology Section, Hospital Clinico Universidad de Chile, Santiago, Chile. FAU - Cordova, Andrea AU - Cordova A AD - Digestive Diseases Center, Clinica Universidad de los Andes, Universidad de los Andes, Santiago, Chile. FAU - Nunez, Paulina AU - Nunez P AUID- ORCID: 0000-0003-3727-1851 AD - Digestive Diseases Center, Clinica Universidad de los Andes, Universidad de los Andes, Santiago, Chile. AD - Gastroenterology Section, Hospital San Juan de Dios, Facultad Medicina Universidad de Chile Sede Occidente, Santiago, Chile. FAU - Pacheco, Nicole AU - Pacheco N AD - Digestive Diseases Center, Clinica Universidad de los Andes, Universidad de los Andes, Santiago, Chile. FAU - Herrera, Karin AU - Herrera K AUID- ORCID: 0000-0003-1841-5266 AD - Digestive Diseases Center, Clinica Universidad de los Andes, Universidad de los Andes, Santiago, Chile. AD - Nutrition and Food Sciences Ph.D. Program, University of Granada, Granada, Spain. FAU - Quera, Rodrigo AU - Quera R AUID- ORCID: 0000-0001-5854-0526 AD - Digestive Diseases Center, Clinica Universidad de los Andes, Universidad de los Andes, Santiago, Chile. LA - eng PT - Journal Article PT - Observational Study PL - England TA - Helicobacter JT - Helicobacter JID - 9605411 RN - 804826J2HU (Amoxicillin) RN - 0 (Anti-Bacterial Agents) RN - H1250JIK0A (Clarithromycin) RN - N3PA6559FT (Esomeprazole) RN - 0 (Proton Pump Inhibitors) SB - IM MH - Adult MH - Humans MH - Amoxicillin MH - Anti-Bacterial Agents MH - Chile MH - Clarithromycin/therapeutic use MH - Drug Therapy, Combination/adverse effects MH - Esomeprazole/therapeutic use MH - *Helicobacter Infections/drug therapy MH - *Helicobacter pylori MH - Hospitals MH - Prospective Studies MH - Proton Pump Inhibitors MH - Treatment Outcome OTO - NOTNLM OT - Helicobacter pylori OT - Chile OT - amoxicillin dual therapy OT - antibiotics EDAT- 2024/02/09 06:42 MHDA- 2024/02/10 14:47 CRDT- 2024/02/09 02:43 PHST- 2024/01/09 00:00 [revised] PHST- 2023/09/15 00:00 [received] PHST- 2024/01/22 00:00 [accepted] PHST- 2024/02/10 14:47 [medline] PHST- 2024/02/09 06:42 [pubmed] PHST- 2024/02/09 02:43 [entrez] AID - 10.1111/hel.13052 [doi] PST - ppublish SO - Helicobacter. 2024 Jan-Feb;29(1):e13052. doi: 10.1111/hel.13052.