Evidence map›Paper›PMID 26975361›Full record

Trial reportPharmaceutical research2016

Characteristics of the Human Upper Gastrointestinal Contents in the Fasted State Under Hypo- and A-chlorhydric Gastric Conditions Under Conditions of Typical Drug - Drug Interaction Studies.

Chara Litou, Maria Vertzoni, Constantinos Goumas, Vassilis Vasdekis, Wei Xu, Filippos Kesisoglou, Christos Reppas

Abstract readClinical TrialComparative Study
PubMed Publisher
In one paragraph

Trial report in Pharmaceutical research, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
4.8field-weighted citation impact, top 5% of its field
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

23 citing papers in PubMed, 83 citations in OpenAlex.

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  14. On the usefulness of four in vitro methods in assessing the intraluminal performance of poorly soluble, ionisable compounds in the fasted state.European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences · 2022
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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

7 authors at 4 institutions in 2 countries.

Chara LitouFaculty of Pharmacy, School of Health Sciences, National & Kapodistrian University of Athens, Panepistimiopolis, 157 71, Zografou, Greece.
Maria VertzoniFaculty of Pharmacy, School of Health Sciences, National & Kapodistrian University of Athens, Panepistimiopolis, 157 71, Zografou, Greece.
Constantinos GoumasGastroenterology Department, Red Cross Hospital of Athens, Athens, Greece.
Vassilis VasdekisDepartment of Statistics, Sciences and Technology, Athens University of Economics and Business, Athens, Greece.
Wei XuPharmaceutical Sciences and Clinically Supply, Merck & Co, Kenilworth, New Jersey, USA.
Filippos KesisoglouPharmaceutical Sciences and Clinically Supply, Merck & Co, Kenilworth, New Jersey, USA.
Christos ReppasFaculty of Pharmacy, School of Health Sciences, National & Kapodistrian University of Athens, Panepistimiopolis, 157 71, Zografou, Greece. reppas@pharm.uoa.gr.
National and Kapodistrian University of Athens · GRMerck & Co., Inc., Rahway, NJ, USA (United States) · USAthens University of Economics and Business · GRRed Cross Hospital · GR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveEvaluate the impact of reduced gastric acid secretion after administration of two acid-reducing agents on the physicochemical characteristics of contents of upper gastrointestinal lumen of fasted adults. MATERIALS AND

methodsEight healthy male adults, fasted from food for 12 h, participated in a three-phase crossover study. Phase 1: No drug treatment prior to aspirations. Phase 2: Oral administration of 40 mg pantoprazole at ~9 am the last 3 days prior to aspirations and at ~7 am on aspiration day. Phase 3: Oral administration of 20 mg famotidine at ~7 pm prior to aspirations and at ~7 am on aspiration day. Samples from the contents of upper gastrointestinal lumen were aspirated for 50 min, after administration of 240 ml table water at ~9 am.

resultsReduction of gastric acid secretion was accompanied by reduced buffer capacity, chloride ion concentration, osmolality and surface tension in stomach and by increased pH (up to ~0.7 units) in upper small intestine during the first 50 min post-water administration. The mechanism of reduction of acid secretion seems to be important for the buffer capacity in stomach and for the surface tension in upper gastrointestinal lumen.

conclusionsApart from gastric pH, reduced acid secretion affects physicochemical characteristics of contents of upper gastrointestinal lumen which may be important for the performance of certain drugs/products in the fasted state.

Indexed as

2-PyridinylmethylsulfinylbenzimidazolesAchlorhydriaAdministration, OralAdultBile Acids and SaltsBuffersChloridesCross-Over StudiesDrinkingDrug Administration ScheduleDrug InteractionsFamotidineFastingGastric AcidGastric MucosaGastrointestinal Contents2-PyridinylmethylsulfinylbenzimidazolesBile Acids and SaltsBuffersChloridesFamotidineHistamine H2 AntagonistsPantoprazoleProton Pump Inhibitorsachlorhydriaduodenal compositionfasted stategastric compositionhypochlorhydriaupper gastrointestinal lumen

Identifiers

PMID26975361
OpenAlexW2298359086

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.