Evidence map›Paper›PMID 30440097›Full record

ArticleHelicobacter2019

Relative potency of proton-pump inhibitors, Helicobacter pylori therapy cure rates, and meaning of double-dose PPI.

David Y Graham, Hong Lu, Maria Pina Dore

Abstract read
In one paragraph

Article in Helicobacter, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed, 1 pooled it
–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

50 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Optimized sequential therapyWorld journal of gastroenterology · 2024
    Trial
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  4. Barriers toBMJ open · 2026
    Article
  5. Review
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  7. Article
  8. Review
  9. Do the new ACGJournal of the Canadian Association of Gastroenterology · 2025
    Article
  10. Therapeutic regimens againstTherapeutic advances in gastroenterology · 2025
    Article
  11. Observational
  12. Overcoming the effects of increasing antimicrobial resistance onExpert review of gastroenterology & hepatology · 2024
    Review
  13. Article
  14. Review
  15. Article
  16. Sequential versus Standard Triple Therapy for First-LineAntibiotics (Basel, Switzerland) · 2024
    Review
  17. Article
  18. Article
  19. Article
  20. Comparison of multiple treatment regimens in children withFrontiers in cellular and infection microbiology · 2023
    Article
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

3 authors.

David Y GrahamDepartment of Medicine, Michael E. DeBakey VAMC and Baylor College of Medicine, Houston, Texas.ORCID http://orcid.org/0000-0002-6908-8317
Hong LuGI Division, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institution of Digestive Disease, Shanghai, China.
Maria Pina DoreDipartimento di Scienze Mediche, Chirurgiche e Sperimentali, Clinica Medica, University of Sassari, Sassari, Italy.ORCID http://orcid.org/0000-0001-7305-3531

Funding

Tissue Analysis & Molecular Imaging CoreP30DK056338 · NIDDK · BAYLOR COLLEGE OF MEDICINE · PI James Versalovic · 2001 to 2026
$28.3M
NIDDK NIH HHS P30 DK056338Office of Research and Development Medical Research Service Department of Veterans Affairs, Public Health Service DK56338Texas Medical Center Digestive Diseases Center
6 · The paper itself

Abstract

backgroundHelicobacter pylori treatment recommendations often recommend use of double-dose PPI or greater. This is confusing because PPIs very markedly in relative potency such that a double dose of one may not even be equivalent to the single dose of another.

objectiveTo relate the concept of double-dose to specific amounts of the different PPIs

methodsWe used data standardizing PPI potency in terms of the duration of intragastric pH >4/24 hours (pH4-time) to rank PPIs. Relative potency varies from 4.5 mg omeprazole equivalents (20 mg pantoprazole) to 72 mg omeprazole equivalents (40 mg rabeprazole).

resultsWe defined PPI dosing for H. pylori therapy as low dose (eg, approximately 20 mg omeprazole equivalents, b.i.d.), high or double dose as approximately 40 mg omeprazole equivalents, b.i.d.) and high dose as approximately 60 mg omeprazole equivalents, b.i.d.). For example, standard double dose PPI would thus be 40 mg of omeprazole, 20 mg of esomeprazole or rabeprazole, 45 mg of lansoprazole, or 120 mg of pantoprazole each given b.i.d.

conclusionsSimply doubling the dose of any PPI achieves markedly different effects on pH4-time. However, PPIs can be used interchangeably and cost effectively based on their omeprazole equivalency.

Indexed as

Anti-Ulcer AgentsDose-Response Relationship, DrugDrug Dosage CalculationsDrug Therapy, CombinationHelicobacter InfectionsHelicobacter pyloriHumansHydrogen-Ion ConcentrationProton Pump InhibitorsTreatment OutcomeAnti-Ulcer AgentsProton Pump InhibitorsHelicobacter pyloripotencyPPI-amoxicillin dual therapyproton-pump inhibitorresistancesusceptibilitytherapy

Identifiers

PMID30440097
PMCPMC6905108

What OpenQuestion holds

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Registered trials

None linked

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.