Evidence map›Paper›PMID 32415986›Full record

ArticleClinical pharmacology and therapeutics2020

Population Pharmacokinetics and Pharmacodynamics of Chloroquine in a Plasmodium vivax Volunteer Infection Study.

Azrin N Abd-Rahman, Louise Marquart, Nathalie Gobeau, Anne Kümmel, Julie A Simpson, Stephan Chalon, Jörg J Möhrle, James S McCarthy

Abstract readClinical Trial, Phase I
In one paragraph

Article in Clinical pharmacology and therapeutics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing 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

9 citing papers in PubMed.

  1. Review
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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

8 authors.

Azrin N Abd-RahmanQIMR Berghofer Medical Research Institute, Brisbane, Australia.
Louise MarquartQIMR Berghofer Medical Research Institute, Brisbane, Australia.
Nathalie GobeauMedicines for Malaria Venture, Geneva, Switzerland.
Anne KümmelIntiQuan GmbH, Basel, Switzerland.
Julie A SimpsonCentre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Australia.
Stephan ChalonMedicines for Malaria Venture, Geneva, Switzerland.
Jörg J MöhrleMedicines for Malaria Venture, Geneva, Switzerland.
James S McCarthyQIMR Berghofer Medical Research Institute, Brisbane, Australia.

Funding

Wellcome Trust
6 · The paper itself

Abstract

Chloroquine has been used for the treatment of malaria for > 70 years; however, chloroquine pharmacokinetic (PK) and pharmacodynamic (PD) profile in Plasmodium vivax malaria is poorly understood. The objective of this study was to describe the PK/PD relationship of chloroquine and its major metabolite, desethylchloroquine, in a P. vivax volunteer infection study. We analyzed data from 24 healthy subjects who were inoculated with blood-stage P. vivax malaria and administered a standard treatment course of chloroquine. The PK of chloroquine and desethylchloroquine was described by a two-compartment model with first-order absorption and elimination. The relationship between plasma and whole blood concentrations of chloroquine and P. vivax parasitemia was characterized by a PK/PD delayed response model, where the equilibration half-lives were 32.7 hours (95% confidence interval (CI) 27.4-40.5) for plasma data and 24.1 hours (95% CI 19.0-32.7) for whole blood data. The estimated parasite multiplication rate was 17 folds per 48 hours (95% CI 14-20) and maximum parasite killing rate by chloroquine was 0.213 hour

Indexed as

Administration, OralAdultAntimalarialsBiotransformationChloroquineDrug Dosage CalculationsDrug ResistanceFemaleHumansMalaria, VivaxMaleModels, BiologicalParasite LoadPlasmodium vivaxTreatment OutcomeYoung AdultAntimalarialsChloroquinedesethylchloroquine

Identifiers

PMID32415986
PMCPMC7276750

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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 OpenQuestion graph.