Evidence map›Paper›PMID 24867967›Full record

ArticleAntimicrobial agents and chemotherapy2014

Emergence of resistance to atovaquone-proguanil in malaria parasites: insights from computational modeling and clinical case reports.

Gilles Cottrell, Lise Musset, Véronique Hubert, Jacques Le Bras, Jérôme Clain, Atovaquone-Proguanil Treatment Failure Study Group

Open access · bronzeAbstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 2 pooled it
3.9field-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

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

  1. Pooled it
  2. Pooled it
  3. Review
  4. Treatment of avian malaria in captive African penguins (International journal of veterinary science and medicine · 2025
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  5. Targeting theProceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Oxidative Stress in Malaria: Potential Benefits of Antioxidant Therapy.International journal of molecular sciences · 2022
    Review
  11. Article
  12. Article
  13. Selection of CytochromeAntimicrobial agents and chemotherapy · 2021
    Article
  14. Article
  15. Article
  16. An Overview of Drug Resistance in Protozoal Diseases.International journal of molecular sciences · 2019
    Review
  17. Selection ofProceedings of the National Academy of Sciences of the United States of America · 2018
    Article
  18. Review
  19. Review
  20. Advanced Molecular Detection of Malarone Resistance.Antimicrobial agents and chemotherapy · 2016
    Article
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

6 authors at 5 institutions in 2 countries.

Gilles CottrellUMR216, Institut de Recherche pour le Développement, Paris, France UMR216, Faculté de Pharmacie, Université Paris Descartes, Sorbonne Paris Cité, Paris, France jerome.clain@parisdescartes.fr gilles.cottrell@ird.fr.
Lise MussetLaboratoire de Parasitologie, Institut Pasteur de la Guyane, Cayenne, French Guiana Centre National de Référence du Paludisme, Laboratoire Associé pour la Région Antilles-Guyane, Cayenne, French Guiana.
Véronique HubertCentre National de Référence du Paludisme, Laboratoire de Parasitologie-Mycologie, Assistance Publique-Hôpitaux de Paris, Hôpital Bichat-Claude Bernard, Paris, France.
Jacques Le BrasUMR216, Institut de Recherche pour le Développement, Paris, France UMR216, Faculté de Pharmacie, Université Paris Descartes, Sorbonne Paris Cité, Paris, France Centre National de Référence du Paludisme, Laboratoire de Parasitologie-Mycologie, Assistance Publique-Hôpitaux de Paris, Hôpital Bichat-Claude Bernard, Paris, France.
Jérôme ClainUMR216, Institut de Recherche pour le Développement, Paris, France UMR216, Faculté de Pharmacie, Université Paris Descartes, Sorbonne Paris Cité, Paris, France Centre National de Référence du Paludisme, Laboratoire de Parasitologie-Mycologie, Assistance Publique-Hôpitaux de Paris, Hôpital Bichat-Claude Bernard, Paris, France jerome.clain@parisdescartes.fr gilles.cottrell@ird.fr.
Atovaquone-Proguanil Treatment Failure Study Group
Assistance Publique – Hôpitaux de Paris · FRDélégation Paris 5 · FRHôpital Bichat-Claude-Bernard · FRInstitut de Recherche pour le Développement · FRUniversity of French Guiana · GF

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The usefulness of atovaquone-proguanil (AP) as an antimalarial treatment is compromised by the emergence of atovaquone resistance during therapy. However, the origin of the parasite mitochondrial DNA (mtDNA) mutation conferring atovaquone resistance remains elusive. Here, we report a patient-based stochastic model that tracks the intrahost emergence of mutations in the multicopy mtDNA during the first erythrocytic parasite cycles leading to the malaria febrile episode. The effect of mtDNA copy number, mutation rate, mutation cost, and total parasite load on the mutant parasite load per patient was evaluated. Computer simulations showed that almost any infected patient carried, after four to seven erythrocytic cycles, de novo mutant parasites at low frequency, with varied frequencies of parasites carrying varied numbers of mutant mtDNA copies. A large interpatient variability in the size of this mutant reservoir was found; this variability was due to the different parameters tested but also to the relaxed replication and partitioning of mtDNA copies during mitosis. We also report seven clinical cases in which AP-resistant infections were treated by AP. These provided evidence that parasiticidal drug concentrations against AP-resistant parasites were transiently obtained within days after treatment initiation. Altogether, these results suggest that each patient carries new mtDNA mutant parasites that emerge before treatment but are killed by high starting drug concentrations. However, because the size of this mutant reservoir is highly variable from patient to patient, we propose that some patients fail to eliminate all of the mutant parasites, repeatedly producing de novo AP treatment failures.

Indexed as

Models, StatisticalAdolescentAntimalarialsAtovaquoneChildDNA, MitochondrialDrug CombinationsDrug ResistanceErythrocytesFemaleGenome, MitochondrialHumansInfantLife Cycle StagesMalaria, FalciparumMaleAntimalarialsAtovaquoneatovaquone, proguanil drug combinationDNA, MitochondrialDrug CombinationsProguanil

Identifiers

PMID24867967
PMCPMC4136057
OpenAlexW2079105656

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.