Evidence map›Paper›PMID 41362749›Full record

ArticleLancet regional health. Americas2026

Comparison between optimized bismuth quadruple therapy and standard clarithromycin-based triple therapy for first-line

Patricio Andrés Medel-Jara, Gonzalo Latorre, Eduardo Fuentes-Lopez, Margarita Pizarro, Paola Viviani, Javier Chahuán, Sara Maquilón, Oscar Corsi, Diego Reyes, Alberto Espino and 13 more

Abstract read
In one paragraph

Article in Lancet regional health. Americas, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

23 authors.

Patricio Andrés Medel-JaraFacultad de Medicina, Programa de Doctorado en Epidemiología, Pontificia Universidad Católica de Chile, Santiago, Chile.
Gonzalo LatorreDepartment of Gastroenterology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.
Eduardo Fuentes-LopezDepartamento de Fonoaudiología, Escuela de Ciencias de la Salud, Pontificia Universidad Católica de Chile, Santiago, Chile.
Margarita PizarroDepartment of Gastroenterology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.
Paola VivianiSchool of Public Health, Pontificia Universidad Católica de Chile, Santiago, Chile.
Javier ChahuánDepartment of Gastroenterology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.
Sara MaquilónDepartment of Gastroenterology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.
Oscar CorsiDepartment of Gastroenterology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.
Diego ReyesDepartment of Gastroenterology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.
Alberto EspinoDepartment of Gastroenterology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.
Jose Ignacio VargasDepartment of Gastroenterology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.
Ignacio A WichmannDivision of Oncology, Department of Medicine, Stanford University School of Medicine, Stanford, CA, 94305, USA.
Paul HarrisDepartment of Pediatric Gastroenterology and Nutrition, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.
Carolina SerranoDepartment of Pediatric Gastroenterology and Nutrition, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.
Isabella BuruatoDepartment of Biosciences, Instituto Tecnológicos de Estudios Superiores de Monterrey and Department of Pediatric Gastroenterology and Nutrition, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.
Christopher SandovalLaboratory of Chemical Carcinogenesis and Pharmacogenetics, Department of Basic and Clinical Oncology, Faculty of Medicine, University of Chile, Hospital Felix Bulnes, Santiago, Chile.
Nelson M VarelaLaboratory of Chemical Carcinogenesis and Pharmacogenetics, Department of Basic and Clinical Oncology, Faculty of Medicine, University of Chile, Latin American Network for Implementation and Validation of Clinical Pharmacogenomics Guidelines (RELIVAF), Santiago, Chile.
Leslie CerpaLaboratory of Chemical Carcinogenesis and Pharmacogenetics, Department of Basic and Clinical Oncology, Faculty of Medicine, University of Chile, Latin American Network for Implementation and Validation of Clinical Pharmacogenomics Guidelines (RELIVAF), Santiago, Chile.
Luis QuiñonesLaboratory of Chemical Carcinogenesis and Pharmacogenetics, Department of Basic and Clinical Oncology, Faculty of Medicine, University of Chile Department of Pharmaceutical Sciences and Technology, Faculty of Chemical and Pharmaceutical Sciences, University of Chile, Latin American Network for Implementation and Validation of Clinical Pharmacogenomics Guidelines (RELIVAF), Santiago, Chile.
Francis MegraudINSERM U1312 BRIC, Carreire Campus, University of Bordeaux, France.
Robert J HuangDivision of Gastroenterology and Hepatology, Stanford University School of Medicine, Stanford, CA, 94305, USA.
Shailja C ShahDivision of Gastroenterology and Hepatology, University of California, Gastroenterology Section, Veterans Affairs San Diego Healthcare System, San Diego, CA, USA.
Arnoldo Riquelme PerezDepartment of Gastroenterology, School of Medicine, Pontificia Universidad Católica de Chile, Center for Cancer Prevention and Control (CECAN), Santiago, Chile.

Funding

CSRD VA IK2 CX002027
6 · The paper itself

Abstract

Background: Methods: Randomized double-blind clinical trial. 127 treatment-naïve individuals with confirmed active Findings: 127 participants were recruited and randomized (64 standard triple therapy, 63 optimized bismuth quadruple therapy). Men were 44% (56/127), and the mean age was 48 (standard deviation: 14.2) in the sample. Baseline characteristics between the two groups were similar. In intention-to-treat analysis, optimized bismuth quadruple therapy had a significantly higher eradication rate versus standard triple therapy: 95% (60/63) [95% CI 86%-99%] vs. 81% (52/64) [70%-89%], p = 0.033. Adverse events were comparable: optimized bismuth quadruple therapy 67% (42/63) [54%-77%] vs. standard triple therapy 66% (42/64) [53%-76%], p = 1.00. There was no difference in baseline clarithromycin resistance or Interpretation: Optimized bismuth quadruple therapy eradication is higher than standard triple therapy in treatment-naïve individuals with active Funding: FONDECYT (1230504 AR); ANID-FONDAP (152220002 AR); Horizon 2020 program of European Union (825832 AR); ANID-FONDAP (15130011).

Indexed as

AntibioticsBismuth quadruple therapyHelicobacter pyloriPPIStandard triple therapy

Identifiers

PMID41362749
PMCPMC12681926

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.