Evidence map›Paper›PMID 30477515›Full record

ArticleMalaria journal2018

Lack of significant recovery of chloroquine sensitivity in Plasmodium falciparum parasites following discontinuance of chloroquine use in Papua New Guinea.

Makoto Sekihara, Shin-Ichiro Tachibana, Masato Yamauchi, Shoki Yatsushiro, Steven Tiwara, Naoyuki Fukuda, Mie Ikeda, Toshiyuki Mori, Makoto Hirai, Francis Hombhanje and 1 more

Open access · goldAbstract read
In one paragraph

Article in Malaria journal, 2018. 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
3.7field-weighted citation impact, top 7% 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

9 citing papers in PubMed, 22 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

11 authors at 3 institutions in 2 countries.

Makoto SekiharaDepartment of Tropical Medicine and Parasitology, Juntendo University, Faculty of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.
Shin-Ichiro TachibanaDepartment of Tropical Medicine and Parasitology, Juntendo University, Faculty of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.
Masato YamauchiDepartment of Tropical Medicine and Parasitology, Juntendo University, Faculty of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.
Shoki YatsushiroHealth Technology Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Takamatsu, Japan.
Steven TiwaraWewak General Hospital, Wewak, East Sepik Province, Papua New Guinea.
Naoyuki FukudaDepartment of Tropical Medicine and Parasitology, Juntendo University, Faculty of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.
Mie IkedaDepartment of Tropical Medicine and Parasitology, Juntendo University, Faculty of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.
Toshiyuki MoriDepartment of Tropical Medicine and Parasitology, Juntendo University, Faculty of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.
Makoto HiraiDepartment of Tropical Medicine and Parasitology, Juntendo University, Faculty of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.
Francis HombhanjeCentre for Health Research & Diagnostics, Divine Word University, P.O. Box 483, Madang, Papua New Guinea.
Toshihiro MitaDepartment of Tropical Medicine and Parasitology, Juntendo University, Faculty of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan. tmita@juntendo.ac.jp.ORCID http://orcid.org/0000-0001-8180-2344
Juntendo University · JPDivine Word University · PGNational Institute of Advanced Industrial Science and Technology · JP

Funding

GHIT G2015-210Japan Agency for Medical Research and Development JP15km0908001Japan Society for the Promotion of Science 17H04074Japan Society for the Promotion of Science 26305015Japan Society for the Promotion of Science 26460515Ministry of Health, Labour and Welfare H26-Iryokiki-Ippan-004
6 · The paper itself

Abstract

backgroundChloroquine treatment for Plasmodium falciparum has been discontinued in almost all endemic regions due to the spread of resistant isolates. Reversal of chloroquine susceptibility after chloroquine discontinuation has been reported in dozens of endemic regions. However, this phenomenon has been mostly observed in Africa and is not well documented in other malaria endemic regions. To investigate this, an ex vivo study on susceptibility to chloroquine and lumefantrine was conducted during 2016-2018 in Wewak, Papua New Guinea where chloroquine had been removed from the official malaria treatment regimen in 2010. Genotyping of pfcrt and pfmdr1 was also performed.

resultsIn total, 368 patients were enrolled in this study. Average IC

conclusionsEight years of chloroquine withdrawal has not induced a significant recovery of susceptibility in Papua New Guinea. However, an increasing tendency of parasites harbouring chloroquine-susceptible K76 suggests a possibility of resurgence of chloroquine susceptibility in the future.

Indexed as

Drug ResistanceAdolescentAdultAntimalarialsATP-Binding Cassette, Sub-Family C ProteinsChildChild, PreschoolChloroquineCross-Sectional StudiesDrug UtilizationFemaleGenotypeGenotyping TechniquesHumansInfantInfant, NewbornAntimalarialsATP-Binding Cassette, Sub-Family C ProteinsChloroquineLumefantrineMdr1 protein, Plasmodium falciparumMembrane Transport ProteinsPfCRT protein, Plasmodium falciparumProtozoan ProteinsChloroquineFitnessPapua New GuineapfcrtPlasmodium falciparumRecoveryResistance

Identifiers

PMID30477515
PMCPMC6260888
OpenAlexW2902740155

What OpenQuestion holds

Textmetadata
LicenceCC BY
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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.