Evidence map›Paper›PMID 40734520›Full record

ArticleNeurogastroenterology and motility2025

Predicting Symptomatic Response to Prokinetic Treatment Using Gastric Alimetry.

Chris Varghese, Sibylle Van Hove, Gabriel Schamberg, Billy Wu, Nooriyah Poonawala, Mikaela Law, Nicky Dachs, Gen Johnston, India Fitt, Daphne Foong and 7 more

Abstract read
In one paragraph

Article in Neurogastroenterology and motility, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing 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

8 citing papers in PubMed.

  1. Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

17 authors.

Chris VargheseDepartment of Surgery, University of Auckland, Auckland, New Zealand.ORCID https://orcid.org/0000-0001-7369-8639
Sibylle Van HoveAlimetry Ltd, Auckland, New Zealand.
Gabriel SchambergDepartment of Surgery, University of Auckland, Auckland, New Zealand.ORCID https://orcid.org/0000-0002-4188-9614
Billy WuAlimetry Ltd, Auckland, New Zealand.
Nooriyah PoonawalaAlimetry Ltd, Auckland, New Zealand.
Mikaela LawDepartment of Surgery, University of Auckland, Auckland, New Zealand.
Nicky DachsDepartment of Surgery, University of Auckland, Auckland, New Zealand.ORCID https://orcid.org/0009-0009-3964-8086
Gen JohnstonDepartment of Surgery, University of Auckland, Auckland, New Zealand.
India FittDepartment of Surgery, University of Auckland, Auckland, New Zealand.
Daphne FoongAlimetry Ltd, Auckland, New Zealand.
Henry P ParkmanDepartment of Medicine, Temple University Hospital, Philadelphia, Pennsylvania, USA.ORCID https://orcid.org/0000-0003-4904-4891
Thomas AbellDivision of Gastroenterology, Hepatology and Nutrition, University of Louisville, Louisville, Kentucky, USA.ORCID https://orcid.org/0000-0002-3175-5161
Vincent HoWestern Sydney University, Sydney, Australia.
Stefan CalderAlimetry Ltd, Auckland, New Zealand.
Armen A GharibansDepartment of Surgery, University of Auckland, Auckland, New Zealand.
Christopher N AndrewsDepartment of Gastroenterology, University of Calgary, Calgary, Canada.
Gregory O'GradyDepartment of Surgery, University of Auckland, Auckland, New Zealand.ORCID https://orcid.org/0000-0002-5998-1080

Funding

Health Research Council of New ZealandNew Zealand Society of Gastroenterology Janssen Research FellowshipNIH HHS
6 · The paper itself

Abstract

backgroundChronic neurogastroduodenal disorders are challenging to manage, with therapy often initiated on a trial and error basis. Prokinetics play a significant role in management, but responses are variable and have been associated with adverse events, impacting widespread use. We investigated whether body surface gastric mapping (BSGM) biomarkers (using Gastric Alimetry) could inform patient selection for prokinetic therapy.

methodsPatients with chronic gastroduodenal symptoms taking oral prokinetic agents, regardless of gastric emptying status, were prospectively recruited and underwent BSGM (30 m baseline, 482 kcal standardized meal, 4 h postprandial recording) while off-prokinetic agents. Patients were followed up with daily symptom diaries. A subset was compared to matched patients not taking prokinetic agents. Prokinetic responders were defined based on symptom improvement greater than a minimum clinically important difference methodology. KEY

resultsForty-two patients (88% female; median age 36; median BMI 26) taking prokinetics were analyzed. Prokinetic prescribing, compared to matched patients, was independent of BSGM metrics (p > 0.15). In patients on existing prokinetics (withheld for BSGM), lower amplitudes predicted reduced symptom burden, whereas low rhythm stability predicted a worse symptom burden (p < 0.05). In prokinetic-naive patients (i.e., started on a prokinetic during the study), a lower postprandial amplitude predicted responders (mean 37.5 ± 10.6 uV in responders [n = 5] vs. mean 54.8 ± 6.6 uV among nonresponders [n = 3], p = 0.047).

conclusionsGastric Alimetry biomarkers may help in the prediction of prokinetic response in patients with chronic gastroduodenal symptoms. Lower postprandial amplitudes, indicating a reduced meal response, appear to predict benefit, while impaired rhythm stability predicted poorer therapeutic response.

Indexed as

Gastrointestinal AgentsStomachAdultFemaleGastric EmptyingHumansMaleMiddle AgedProspective StudiesTreatment OutcomeGastrointestinal Agentsbody surface gastric mappingdisorders of gut‐brain interactionfunctional dyspepsiagastrointestinal motilitygastroparesisprokinetics

Identifiers

PMID40734520
PMCPMC12534585

What Socratic holds

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LicenceCC BY
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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 Socratic graph.