Evidence map›Paper›PMID 27056954›Full record

Trial reportThe Journal of infectious diseases2016

Piperaquine Monotherapy of Drug-Susceptible Plasmodium falciparum Infection Results in Rapid Clearance of Parasitemia but Is Followed by the Appearance of Gametocytemia.

Cielo J Pasay, Rebecca Rockett, Silvana Sekuloski, Paul Griffin, Louise Marquart, Christopher Peatey, Claire Y T Wang, Peter O'Rourke, Suzanne Elliott, Mark Baker and 2 more

Open access · hybridAbstract readClinical Trial, Phase II
In one paragraph

Trial report in The Journal of infectious diseases, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
10.3field-weighted citation impact, top 2% 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

42 citing papers in PubMed, 78 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

12 authors at 4 institutions in 2 countries.

Cielo J PasayQIMR Berghofer Medical Research Institute.
Rebecca RockettSchool of Chemistry and Molecular Biosciences Queensland Pediatric Infectious Diseases Laboratory.
Silvana SekuloskiQIMR Berghofer Medical Research Institute.
Paul GriffinQIMR Berghofer Medical Research Institute School of Medicine, University of Queensland Q-Pharm Department of Infectious Diseases, Mater Health Services and Mater Research Institute.
Louise MarquartQIMR Berghofer Medical Research Institute.
Christopher PeateyAustralian Army Malaria Institute, Brisbane.
Claire Y T WangQueensland Pediatric Infectious Diseases Laboratory.
Peter O'RourkeQIMR Berghofer Medical Research Institute.
Suzanne ElliottQ-Pharm.
Mark BakerMedicaments pour Tous, Rolle.
Jörg J MöhrleMedicines for Malaria Venture, Geneva, Switzerland.
James S McCarthyQIMR Berghofer Medical Research Institute School of Medicine, University of Queensland Q-Pharm.
QIMR Berghofer Medical Research Institute · AUQueensland Health · AUMedicines for Malaria Venture · CHUniversity of Queensland · AU

Funding

Wellcome Trust
6 · The paper itself

Abstract

backgroundPiperaquine, coformulated with dihydroartemisinin, is a component of a widely used artemisinin combination therapy. There is a paucity of data on its antimalarial activity as a single agent. Such data, if available, would inform selection of new coformulations.

methodsWe undertook a study in healthy subjects, using the induced blood stage malaria (IBSM) model to test the antimalarial activity of single doses of piperaquine (960, 640, and 480 mg) in 3 cohorts. In a pilot study in the third cohort, gametocyte clearance following administration of 15 mg, or 45 mg or no primaquine was investigated.

resultsParasite clearance over the 48-hour period after piperaquine administration was more rapid in the 960 mg cohort, compared with the 640 mg cohort (parasite reduction ratio, 2951 [95% confidence interval {CI}, 1520-5728] vs 586 [95% CI, 351-978]; P < .001). All 24 subjects developed gametocytemia as determined by pfs25 transcripts. Clearance of pfs25 was significantly faster in those receiving primaquine than in those not receiving primaquine (P < .001).

conclusionsPiperaquine possesses rapid parasite-clearing activity, but monotherapy is followed by the appearance of gametocytemia, which could facilitate the spread of malaria. This new information should be taken into account when developing future antimalarial coformulations. CLINICAL TRIALS REGISTRATION: ACTRN12613000565741.

Indexed as

AdolescentAdultAntimalarialsAustraliaCohort StudiesFemaleGametogenesisHumansMalaria, FalciparumMaleMiddle AgedParasitemiaPilot ProjectsPlasmodium falciparumQuinolinesYoung AdultAntimalarialsQuinolinesgametocytemiamalariaP. falciparumpiperaquine clinical trial

Identifiers

PMID27056954
PMCPMC4907420
OpenAlexW2314579490

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.