Evidence map›Paper›PMID 24970740›Full record

Trial reportThe Journal of antimicrobial chemotherapy2014

Population pharmacokinetics of quinine in pregnant women with uncomplicated Plasmodium falciparum malaria in Uganda.

Frank Kloprogge, Vincent Jullien, Patrice Piola, Mehul Dhorda, Sulaiman Muwanga, François Nosten, Nicholas P J Day, Nicholas J White, Philippe J Guerin, Joel Tarning

Open access · hybridAbstract readClinical Trial
In one paragraph

Trial report in The Journal of antimicrobial chemotherapy, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 2 pooled it
1.6field-weighted citation impact, top 15% 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

12 citing papers in PubMed, 2 syntheses or guidelines pooled it, 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 7 institutions in 5 countries.

Frank KloproggeCentre for Tropical Medicine, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, UK Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.
Vincent JullienUniversité Paris Descartes, INSERM U663, Assistance Publique-Hôpitaux de Paris, Hôpital Saint-Vincent de Paul, Paris, France.
Patrice PiolaCentre for Tropical Medicine, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, UK Epicentre, Paris, France Mbarara University of Science & Technology, Mbarara, Uganda.
Mehul DhordaEpicentre, Paris, France Epicentre, Mbarara, Uganda Malaria Group, Center for Vaccine Development, University of Maryland School of Medicine, Baltimore, MD, USA.
Sulaiman MuwangaEpicentre, Mbarara, Uganda.
François NostenCentre for Tropical Medicine, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, UK Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand Shoklo Malaria Research Unit, Faculty of Tropical Medicine, Mahidol University, Mae Sot, Thailand.
Nicholas P J DayCentre for Tropical Medicine, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, UK Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.
Nicholas J WhiteCentre for Tropical Medicine, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, UK Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.
Philippe J GuerinCentre for Tropical Medicine, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, UK Epicentre, Paris, France.
Joel TarningCentre for Tropical Medicine, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, UK Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand joel@tropmedres.ac.
Epicentre Uganda · UGNuffield Orthopaedic Centre · GBUniversity of Oxford · GBInserm · FRMahidol Oxford Tropical Medicine Research Unit · THMahidol University · THMbarara University of Science and Technology · UG

Funding

Wellcome Trust 093956
6 · The paper itself

Abstract

objectivesOral quinine is used for the treatment of uncomplicated malaria during pregnancy, but few pharmacokinetic data are available for this population. Previous studies have reported a substantial effect of malaria on the pharmacokinetics of quinine resulting from increased α-1-acid glycoprotein levels and decreased cytochrome P450 3A4 activity. The aim of this study was to investigate the pharmacokinetic properties of oral quinine in pregnant women with uncomplicated malaria in Uganda using a population approach.

methodsData from 22 women in the second and third trimesters of pregnancy with uncomplicated Plasmodium falciparum malaria were analysed. Patients received quinine sulphate (10 mg of salt/kg) three times daily (0, 8 and 16 h) for 7 days. Plasma samples were collected daily and at frequent intervals after the first and last doses. A population pharmacokinetic model for quinine was developed accounting for different disposition, absorption, error and covariate models.

resultsParasitaemia, as a time-varying covariate affecting relative bioavailability, and body temperature on admission as a covariate on elimination clearance, explained the higher exposure to quinine during acute malaria compared with the convalescent phase. Neither the estimated gestational age nor the trimester influenced the pharmacokinetic properties of quinine significantly.

conclusionsA population model was developed that adequately characterized quinine pharmacokinetics in pregnant Ugandan women with acute malaria. Quinine exposure was lower than previously reported in patients who were not pregnant. The measurement of free quinine concentration will be necessary to determine the therapeutic relevance of these observations.

Indexed as

AdolescentAdultAntimalarialsFemaleHumansMalaria, FalciparumPregnancyPregnancy Complications, InfectiousQuinineUgandaYoung AdultAntimalarialsQuinineNONMEMP. falciparumpopulation models

Identifiers

PMID24970740
PMCPMC4195470
OpenAlexW2157138557

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.