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Understanding the Development of Compensatory Pathways in a Mutant Malaria Parasite Harbouring Hypomorphic Allele of Plant-Like Kinases
Published on: November 22, 2024
[Treatment of malaria in children: 1. Uncomplicated malaria]
1Service des Maladies infectieuses et Tropicales, Hôpital d'Instruction des Armées Bégin, 69, avenue de Paris, 94163 Saint-Mandé, France. hiabegin.mit@worldonline.fr
Insights
Pediatric malaria is rising in France, primarily from Plasmodium falciparum. Current treatments like halofantrine and mefloquine have drawbacks, prompting research into effective malaria therapies for children.
Area of Science:
- Tropical Medicine
- Infectious Diseases
- Pharmacology
Context:
- Malaria poses a significant global health threat, particularly to young children, with increasing incidence in France.
- Plasmodium falciparum accounts for over 80% of pediatric malaria cases in France, necessitating effective treatment strategies.
- Current treatment guidelines recommend hospitalization for all malaria cases, impacting pediatric care.
Purpose:
- To review current antimalarial drug therapies for pediatric malaria, focusing on Plasmodium falciparum.
- To evaluate the efficacy and safety profiles of commonly used antimalarials, including halofantrine and mefloquine.
- To discuss alternative and emerging treatments for malaria in children, considering drug resistance patterns.
Summary:
- Halofantrine is widely used for uncomplicated Plasmodium falciparum malaria in children, but cardiotoxicity is a concern.
- Mefloquine is an alternative, though its formulation and gastrointestinal side effects present challenges in pediatric use.
- Chloroquine remains a standard for other Plasmodium species and in areas of moderate resistance; amodiaquine, sulfadoxine-pyrimethamine, and quinine are options for resistance or treatment failure.
- Artemisinin derivative combinations show high efficacy, with ongoing evaluation for widespread use to combat resistance.
Impact:
- Highlights the challenges in pediatric malaria treatment due to drug toxicity and formulation issues.
- Underscores the need for safer and more effective antimalarial drugs for children globally.
- Informs clinical practice and future research directions for managing pediatric malaria, especially in the context of evolving drug resistance.
Abstract:
Malaria is a worldwide epidemic causing high morbidity and mortality especially in children younger than 5 years. In France the incidence of pediatric malaria has constantly increased up to 1500 cases in the last two years, due to Plasmodium falciparum in more than 80% of cases. According to current recommendations, any patient with clinical suspicion or confirmed diagnosis of malaria must be hospitalized for treatment. Halofantrine is the most widely used antimalarial for treatment of uncomplicated P. falciparum malaria in children. However due to halofontrine-related cardiotoxicity some teams recommend mefloquine as the first-line drug despite disadvantages related to its poorly adapted formulation and adverse gastrointestinal effects in young children. Treatment of malaria involving other plasmodium species is still based on chloroquine. Likewise the World Health Organization continues to recommend chloroquine as the first-line agent for uncomplicated malaria in endemic zones with moderate chloroquine resistance. Amodiaquin or sulfadoxine-pyrimethamine combination may be used either in case of failure or as first-line agents in zones with high chloroquine resistance. In case of multiple resistance, quinine may be used alone or in association with an antimicrobial. Other drug therapies such as combinations using artemisinine derivatives have been shown to be highly effective for control of clinical symptoms and parasitemia. Widespread use of these therapies to prevent the appearance and extension of resistance is now undergoing evaluation.
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