Evidence map›Paper›PMID 32482173›Full record

SynthesisBMC medicine2020

Pregnancy outcomes and risk of placental malaria after artemisinin-based and quinine-based treatment for uncomplicated falciparum malaria in pregnancy: a WorldWide Antimalarial Resistance Network systematic review and individual patient data meta-analysis.

Makoto Saito, Rashid Mansoor, Kalynn Kennon, Anupkumar R Anvikar, Elizabeth A Ashley, Daniel Chandramohan, Lauren M Cohee, Umberto D'Alessandro, Blaise Genton, Mary Ellen Gilder and 32 more

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in BMC medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 2 pooled it
1.6field-weighted citation impact, top 12% 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

14 citing papers in PubMed, 2 syntheses or guidelines pooled it, 25 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Trial
  5. Article
  6. Article
  7. Synergistic Combination ofAdvances in pharmacological and pharmaceutical sciences · 2026
    Review
  8. Article
  9. Article
  10. Acquisition of antibodies that blockFrontiers in immunology · 2023
    Article
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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

42 authors at 20 institutions in 18 countries.

Makoto SaitoWorldWide Antimalarial Resistance Network (WWARN), Oxford, UK. makoto.saito@wwarn.org.
Rashid MansoorWorldWide Antimalarial Resistance Network (WWARN), Oxford, UK.
Kalynn KennonWorldWide Antimalarial Resistance Network (WWARN), Oxford, UK.
Anupkumar R AnvikarICMR-National Institute of Malaria Research, New Delhi, India.
Elizabeth A AshleyCentre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK.
Daniel ChandramohanLondon School of Hygiene and Tropical Medicine, London, UK.
Lauren M CoheeCenter for Vaccine Development and Global Health, University of Maryland School of Medicine, Baltimore, MD, USA.
Umberto D'AlessandroMedical Research Council Unit, The Gambia at the London School of Hygiene & Tropical Medicine, Banjul, The Gambia.
Blaise GentonDepartment of Epidemiology and Public Health, Swiss Tropical and Public Health Institute, Basel, Switzerland.
Mary Ellen GilderShoklo Malaria Research Unit, Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Mae Sot, Tak, Thailand.
Elizabeth JumaKenya Medical Research Institute, Nairobi, Kenya.
Linda Kalilani-PhiriDepartment of Medicine, University of Malawi College of Medicine, Blantyre, Malawi.
Irene KuepferLondon School of Hygiene and Tropical Medicine, London, UK.
Miriam K LauferCenter for Vaccine Development and Global Health, University of Maryland School of Medicine, Baltimore, MD, USA.
Khin Maung LwinShoklo Malaria Research Unit, Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Mae Sot, Tak, Thailand.
Steven R MeshnickDepartment of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA.
Dominic MoshaIfakara Health Institute, Dar es Salaam, Tanzania.
Atis MuehlenbachsDepartment of Pathology, University of Washington, Seattle, WA, USA.
Victor MwapasaDepartment of Medicine, University of Malawi College of Medicine, Blantyre, Malawi.
Norah MwebazaInfectious Disease Research Collaboration, Makerere University, Kampala, Uganda.
Michael NamboziDepartment of Clinical Sciences, Tropical Diseases Research Centre, Ndola, Zambia.
Jean-Louis A NdiayeDepartment of Parasitology, Universite Cheikh Anta Diop, Dakar, Senegal.
François NostenCentre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK.
Myaing NyuntDuke Global Health Institute, Duke University, Durham, NC, USA.
Bernhards OgutuKenya Medical Research Institute, Nairobi, Kenya.
Sunil ParikhYale School of Public Health, New Haven, CT, USA.
Moo Kho PawShoklo Malaria Research Unit, Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Mae Sot, Tak, Thailand.
Aung Pyae PhyoShoklo Malaria Research Unit, Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Mae Sot, Tak, Thailand.
Mupawjay PimanpanarakShoklo Malaria Research Unit, Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Mae Sot, Tak, Thailand.
Patrice PiolaInstitut Pasteur du Cambodge, Phnom Penh, Cambodia.
Marcus J RijkenShoklo Malaria Research Unit, Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Mae Sot, Tak, Thailand.
Kanlaya SriprawatShoklo Malaria Research Unit, Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Mae Sot, Tak, Thailand.
Harry K TagborSchool of Medicine, University of Health and Allied Sciences, Ho, Ghana.
Joel TarningWorldWide Antimalarial Resistance Network (WWARN), Oxford, UK.
Halidou TintoClinical Research Unit of Nanoro, Institut de Recherche en Sciences de la Santé, Nanoro, Burkina Faso.
Innocent ValéaClinical Research Unit of Nanoro, Institut de Recherche en Sciences de la Santé, Nanoro, Burkina Faso.
Neena ValechaICMR-National Institute of Malaria Research, New Delhi, India.
Nicholas J WhiteCentre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK.
Jacher WiladphaingernShoklo Malaria Research Unit, Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Mae Sot, Tak, Thailand.
Kasia StepniewskaWorldWide Antimalarial Resistance Network (WWARN), Oxford, UK.
Rose McGreadyCentre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK.
Philippe J GuérinWorldWide Antimalarial Resistance Network (WWARN), Oxford, UK. philippe.guerin@wwarn.org.
University of Oxford · GBWorldwide Veterinary Service · GBShoklo Malaria Research Unit · THInstitut de Recherche en Sciences de la Santé · BFKenya Medical Research Institute · KELondon School of Hygiene & Tropical Medicine · GBMahidol Oxford Tropical Medicine Research Unit · THMahidol University · THNational Institute of Malaria Research · INUniversity of Malawi · MWUniversity of Maryland, Baltimore · USCheikh Anta Diop University · SNDuke Institute for Health Innovation · USIfakara Health Institute · TZInstitut Pasteur du Cambodge · KHMakerere University · UGMRC Unit the Gambia · GMMyanmar Oxford Clinical Research Unit · MMSwiss Tropical and Public Health Institute · CHTropical Diseases Research Centre · ZM

Funding

Yale Clinical and Translational Science Award (U Component)UL1TR001863 · NCATS · YALE UNIVERSITY · PI John H. Krystal, LUCILA OHNO-MACHADO · 2016 to 2026
$102.9M
NCATS NIH HHS UL1 TR001863
6 · The paper itself

Abstract

backgroundMalaria in pregnancy, including asymptomatic infection, has a detrimental impact on foetal development. Individual patient data (IPD) meta-analysis was conducted to compare the association between antimalarial treatments and adverse pregnancy outcomes, including placental malaria, accompanied with the gestational age at diagnosis of uncomplicated falciparum malaria infection.

methodsA systematic review and one-stage IPD meta-analysis of studies assessing the efficacy of artemisinin-based and quinine-based treatments for patent microscopic uncomplicated falciparum malaria infection (hereinafter uncomplicated falciparum malaria) in pregnancy was conducted. The risks of stillbirth (pregnancy loss at ≥ 28.0 weeks of gestation), moderate to late preterm birth (PTB, live birth between 32.0 and < 37.0 weeks), small for gestational age (SGA, birthweight of < 10th percentile), and placental malaria (defined as deposition of malaria pigment in the placenta with or without parasites) after different treatments of uncomplicated falciparum malaria were assessed by mixed-effects logistic regression, using artemether-lumefantrine, the most used antimalarial, as the reference standard. Registration PROSPERO: CRD42018104013.

resultsOf the 22 eligible studies (n = 5015), IPD from16 studies were shared, representing 95.0% (n = 4765) of the women enrolled in literature. Malaria treatment in this pooled analysis mostly occurred in the second (68.4%, 3064/4501) or third trimester (31.6%, 1421/4501), with gestational age confirmed by ultrasound in 91.5% (4120/4503). Quinine (n = 184) and five commonly used artemisinin-based combination therapies (ACTs) were included: artemether-lumefantrine (n = 1087), artesunate-amodiaquine (n = 775), artesunate-mefloquine (n = 965), and dihydroartemisinin-piperaquine (n = 837). The overall pooled proportion of stillbirth was 1.1% (84/4361), PTB 10.0% (619/4131), SGA 32.3% (1007/3707), and placental malaria 80.1% (2543/3035), and there were no significant differences of considered outcomes by ACT. Higher parasitaemia before treatment was associated with a higher risk of SGA (adjusted odds ratio [aOR] 1.14 per 10-fold increase, 95% confidence interval [CI] 1.03 to 1.26, p = 0.009) and deposition of malaria pigment in the placenta (aOR 1.67 per 10-fold increase, 95% CI 1.42 to 1.96, p < 0.001).

conclusionsThe risks of stillbirth, PTB, SGA, and placental malaria were not different between the commonly used ACTs. The risk of SGA was high among pregnant women infected with falciparum malaria despite treatment with highly effective drugs. Reduction of malaria-associated adverse birth outcomes requires effective prevention in pregnant women.

Indexed as

AdultAntimalarialsArtemisininsFemaleHumansMalaria, FalciparumPlacentaPregnancyPregnancy OutcomeQuinineYoung AdultAntimalarialsArtemisininsQuinineArtemisininFalciparum malariaPregnancyPreterm birthQuinineSafetySmall for gestational ageStillbirthSystematic reviewTreatment

Identifiers

PMID32482173
PMCPMC7263905
OpenAlexW3031532630

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.