Evidence map›Paper›PMID 22926572›Full record

ArticleAntimicrobial agents and chemotherapy2012

Population pharmacokinetic and pharmacodynamic modeling of amodiaquine and desethylamodiaquine in women with Plasmodium vivax malaria during and after pregnancy.

Joel Tarning, Palang Chotsiri, Vincent Jullien, Marcus J Rijken, Martin Bergstrand, Mireille Cammas, Rose McGready, Pratap Singhasivanon, Nicholas P J Day, Nicholas J White and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 2 pooled it
5.0field-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

31 citing papers in PubMed, 2 syntheses or guidelines pooled it, 52 citations in OpenAlex.

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  15. High-throughput quantitation method for amodiaquine and desethylamodiaquine in plasma using supported liquid extraction technology.Journal of chromatography. B, Analytical technologies in the biomedical and life sciences · 2021
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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

12 authors at 7 institutions in 4 countries.

Joel TarningMahidol-Oxford Tropical Medicine Research Unit, Mahidol University, Bangkok, Thailand. joel@tropmedres.ac
Palang Chotsiri
Vincent Jullien
Marcus J Rijken
Martin Bergstrand
Mireille Cammas
Rose McGready
Pratap Singhasivanon
Nicholas P J Day
Nicholas J White
Francois Nosten
Niklas Lindegardh
Mahidol Oxford Tropical Medicine Research Unit · THUniversity of Oxford · GBMahidol University · THHôpital Saint-Vincent-de-Paul · FRShoklo Malaria Research Unit · THUniversité Paris Cité · FRUppsala University · SE

Funding

Wellcome Trust 089275Wellcome Trust 093956
6 · The paper itself

Abstract

Amodiaquine is effective for the treatment of Plasmodium vivax malaria, but there is little information on the pharmacokinetic and pharmacodynamic properties of amodiaquine in pregnant women with malaria. This study evaluated the population pharmacokinetic and pharmacodynamic properties of amodiaquine and its biologically active metabolite, desethylamodiaquine, in pregnant women with P. vivax infection and again after delivery. Twenty-seven pregnant women infected with P. vivax malaria on the Thai-Myanmar border were treated with amodiaquine monotherapy (10 mg/kg/day) once daily for 3 days. Nineteen women, with and without P. vivax infections, returned to receive the same amodiaquine dose postpartum. Nonlinear mixed-effects modeling was used to evaluate the population pharmacokinetic and pharmacodynamic properties of amodiaquine and desethylamodiaquine. Amodiaquine plasma concentrations were described accurately by lagged first-order absorption with a two-compartment disposition model followed by a three-compartment disposition of desethylamodiaquine under the assumption of complete in vivo conversion. Body weight was implemented as an allometric function on all clearance and volume parameters. Amodiaquine clearance decreased linearly with age, and absorption lag time was reduced in pregnant patients. Recurrent malaria infections in pregnant women were modeled with a time-to-event model consisting of a constant-hazard function with an inhibitory effect of desethylamodiaquine. Amodiaquine treatment reduced the risk of recurrent infections from 22.2% to 7.4% at day 35. In conclusion, pregnancy did not have a clinically relevant impact on the pharmacokinetic properties of amodiaquine or desethylamodiaquine. No dose adjustments are required in pregnancy.

Indexed as

Secondary PreventionAdolescentAdultAmodiaquineAntimalarialsBiotransformationBody WeightDrug Administration ScheduleFemaleHumansMalaria, VivaxNonlinear DynamicsPlasmodium vivaxPregnancyPregnancy Complications, ParasiticAmodiaquineAntimalarialsdesethylamodiaquine

Identifiers

PMID22926572
PMCPMC3486620
OpenAlexW2135660833

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.