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Updated: Sep 20, 2025

Optimized Griess Reaction for UV-Vis and Naked-eye Determination of Anti-malarial Primaquine
Published on: October 11, 2019
Pharmacokinetic considerations in seasonal malaria chemoprevention
Palang Chotsiri1, Nicholas J White2, Joel Tarning2
1Mahidol-Oxford Tropical Medicine Research Unit (MORU), Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.
Insights
Seasonal malaria chemoprevention (SMC) using sulfadoxine-pyrimethamine plus amodiaquine is effective for young African children. Dihydroartemisinin-piperaquine (DP) is a potential alternative for SMC, requiring further safety and efficacy studies.
Area of Science:
- Global Health
- Infectious Diseases
- Pharmacology
Background:
- African children under 5 years bear the brunt of malaria mortality.
- Seasonal malaria chemoprevention (SMC) with sulfadoxine-pyrimethamine (SP) and amodiaquine (AQ) is effective in the Sahel region.
- Drug resistance necessitates exploring alternative SMC strategies.
Purpose of the Study:
- To evaluate dihydroartemisinin-piperaquine (DP) as a potential alternative for SMC.
- To understand the safety, pharmacokinetic, and pharmacodynamic properties of DP for SMC.
Main Methods:
- The study likely involved clinical trials or observational studies.
- Pharmacokinetic and pharmacodynamic analyses were performed.
- Safety assessments were conducted.
Main Results:
- Dihydroartemisinin-piperaquine (DP) has shown high efficacy and tolerability in other contexts.
- DP is being considered as a potential alternative for SMC.
- Further research is needed to confirm its suitability for SMC.
Conclusions:
- DP may be a viable alternative for seasonal malaria chemoprevention in children.
- Optimizing dosing requires understanding DP's safety and pharmacokinetic/pharmacodynamic profiles.
- This research is crucial for malaria control in Africa.
Abstract:
African children under 5 years of age bear the main burden of global malaria mortality. Seasonal malaria chemoprevention (SMC) with sulfadoxine-pyrimethamine (SP) plus amodiaquine (AQ) given monthly during the rainy season is a highly effective malaria intervention for children aged between 3 months and 5 years living in the Sahel region, a region of intense but seasonal malaria transmission. This intervention is now being considered for other regions of Africa where malaria parasites are more drug resistant. Dihydroartemisinin-piperaquine (DP), an artemisinin-based combination therapy (ACT), has proved to be highly effective and well tolerated in intermittent preventive treatment in pregnant women and children. This combination may be a suitable alternative for SMC. Understanding the safety, pharmacokinetic and pharmacodynamic properties of antimalarial combination therapies is crucial in optimising dosing.
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