Evidence map›Paper›PMID 32320490›Full record

Trial reportBritish journal of clinical pharmacology2020

Effects of single green tea ingestion on pharmacokinetics of nadolol in healthy volunteers.

Shingen Misaka, Osamu Abe, Tomoyuki Ono, Yuko Ono, Hiroshi Ogata, Itaru Miura, Yayoi Shikama, Martin F Fromm, Hirooki Yabe, Kenju Shimomura

Open access · bronzeAbstract readClinical Trial, Phase IIIRandomized Controlled Trial
In one paragraph

Trial report in British journal of clinical pharmacology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.7field-weighted citation impact, top 16% 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

13 citing papers in PubMed, 23 citations in OpenAlex.

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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

10 authors at 2 institutions in 2 countries.

Shingen MisakaDepartment of Bioregulation and Pharmacological Medicine, School of Medicine, Fukushima Medical University School of Medicine, Fukushima, Japan.ORCID 0000-0003-3426-6897
Osamu AbeDepartment of Bioregulation and Pharmacological Medicine, School of Medicine, Fukushima Medical University School of Medicine, Fukushima, Japan.
Tomoyuki OnoDepartment of Bioregulation and Pharmacological Medicine, School of Medicine, Fukushima Medical University School of Medicine, Fukushima, Japan.
Yuko OnoDepartment of Bioregulation and Pharmacological Medicine, School of Medicine, Fukushima Medical University School of Medicine, Fukushima, Japan.
Hiroshi OgataDepartment of Bioregulation and Pharmacological Medicine, School of Medicine, Fukushima Medical University School of Medicine, Fukushima, Japan.
Itaru MiuraDepartment of Neuropsychiatry, School of Medicine, Fukushima Medical University School of Medicine, Fukushima, Japan.
Yayoi ShikamaCentre for Medical Education and Career Development, School of Medicine, Fukushima Medical University School of Medicine, Fukushima, Japan.
Martin F FrommInstitute of Experimental and Clinical Pharmacology and Toxicology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.
Hirooki YabeDepartment of Neuropsychiatry, School of Medicine, Fukushima Medical University School of Medicine, Fukushima, Japan.
Kenju ShimomuraDepartment of Bioregulation and Pharmacological Medicine, School of Medicine, Fukushima Medical University School of Medicine, Fukushima, Japan.
Fukushima Medical University · JPFriedrich-Alexander-Universität Erlangen-Nürnberg · DE

Funding

Honjo International Scholarship Foundation (Food and Health Program 2015), Tokyo, JapanJSPS KAKENHI JP17K17983
6 · The paper itself

Abstract

aimsThe aim of this study was to investigate the effects of a single green tea (GT), administered concomitantly or 1 hour before nadolol intake on nadolol pharmacokinetics.

methodsIn a randomized 3-phase crossover study, 11 healthy volunteers received an oral administration of nadolol with, or 1 hour after preingestion of brewed GT, or with water in a volume of 150 mL.

resultsGeometric mean ratio with 90% confidence interval for nadolol AUC

conclusionThese results suggest that single concomitant ingestion of GT substantially decreases plasma concentrations of nadolol. Moreover, the reduction in nadolol bioavailability could persist for at least 1 hour after drinking a cup of GT.

Indexed as

CatechinNadololCross-Over StudiesEatingHealthy VolunteersHumansTeaCatechinNadololTeaepigallocatechin gallatefood-drug interactiongreen teanadololpharmacokinetics

Identifiers

PMID32320490
PMCPMC7576630
OpenAlexW3017137561

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.