Tolerability and Efficacy of a Pediatric Granule Formulation of Artesunate-Mefloquine in Young Children from Cameroon with Uncomplicated Falciparum Malaria

Félix Tietche Faculty of Medicine and Biomedical Sciences, University of Yaoundé 1, Yaoundé, Cameroon; Centre Mère et Enfant, Fondation Chantal Biya, Yaoundé, Cameroon; Swiss Tropical Institute, Basel, Switzerland; University Children's Hospital Basel, Switzerland; Mepha Ltd, Aesch, Switzerland; Institute for Clinical Pharmacology, Public Health Research Association Saxony, Technical University, Dresden, Germany

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David Chelo Faculty of Medicine and Biomedical Sciences, University of Yaoundé 1, Yaoundé, Cameroon; Centre Mère et Enfant, Fondation Chantal Biya, Yaoundé, Cameroon; Swiss Tropical Institute, Basel, Switzerland; University Children's Hospital Basel, Switzerland; Mepha Ltd, Aesch, Switzerland; Institute for Clinical Pharmacology, Public Health Research Association Saxony, Technical University, Dresden, Germany

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Njiki Kinkela Mina Ntoto Faculty of Medicine and Biomedical Sciences, University of Yaoundé 1, Yaoundé, Cameroon; Centre Mère et Enfant, Fondation Chantal Biya, Yaoundé, Cameroon; Swiss Tropical Institute, Basel, Switzerland; University Children's Hospital Basel, Switzerland; Mepha Ltd, Aesch, Switzerland; Institute for Clinical Pharmacology, Public Health Research Association Saxony, Technical University, Dresden, Germany

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Florence Minjiwa Djoukoue Faculty of Medicine and Biomedical Sciences, University of Yaoundé 1, Yaoundé, Cameroon; Centre Mère et Enfant, Fondation Chantal Biya, Yaoundé, Cameroon; Swiss Tropical Institute, Basel, Switzerland; University Children's Hospital Basel, Switzerland; Mepha Ltd, Aesch, Switzerland; Institute for Clinical Pharmacology, Public Health Research Association Saxony, Technical University, Dresden, Germany

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Christoph Hatz Faculty of Medicine and Biomedical Sciences, University of Yaoundé 1, Yaoundé, Cameroon; Centre Mère et Enfant, Fondation Chantal Biya, Yaoundé, Cameroon; Swiss Tropical Institute, Basel, Switzerland; University Children's Hospital Basel, Switzerland; Mepha Ltd, Aesch, Switzerland; Institute for Clinical Pharmacology, Public Health Research Association Saxony, Technical University, Dresden, Germany

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Sarabel Frey Faculty of Medicine and Biomedical Sciences, University of Yaoundé 1, Yaoundé, Cameroon; Centre Mère et Enfant, Fondation Chantal Biya, Yaoundé, Cameroon; Swiss Tropical Institute, Basel, Switzerland; University Children's Hospital Basel, Switzerland; Mepha Ltd, Aesch, Switzerland; Institute for Clinical Pharmacology, Public Health Research Association Saxony, Technical University, Dresden, Germany

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Adrian Frentzel Faculty of Medicine and Biomedical Sciences, University of Yaoundé 1, Yaoundé, Cameroon; Centre Mère et Enfant, Fondation Chantal Biya, Yaoundé, Cameroon; Swiss Tropical Institute, Basel, Switzerland; University Children's Hospital Basel, Switzerland; Mepha Ltd, Aesch, Switzerland; Institute for Clinical Pharmacology, Public Health Research Association Saxony, Technical University, Dresden, Germany

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Sonja Trapp Faculty of Medicine and Biomedical Sciences, University of Yaoundé 1, Yaoundé, Cameroon; Centre Mère et Enfant, Fondation Chantal Biya, Yaoundé, Cameroon; Swiss Tropical Institute, Basel, Switzerland; University Children's Hospital Basel, Switzerland; Mepha Ltd, Aesch, Switzerland; Institute for Clinical Pharmacology, Public Health Research Association Saxony, Technical University, Dresden, Germany

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Roland Zielonka Faculty of Medicine and Biomedical Sciences, University of Yaoundé 1, Yaoundé, Cameroon; Centre Mère et Enfant, Fondation Chantal Biya, Yaoundé, Cameroon; Swiss Tropical Institute, Basel, Switzerland; University Children's Hospital Basel, Switzerland; Mepha Ltd, Aesch, Switzerland; Institute for Clinical Pharmacology, Public Health Research Association Saxony, Technical University, Dresden, Germany

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Edgar A. Mueller Faculty of Medicine and Biomedical Sciences, University of Yaoundé 1, Yaoundé, Cameroon; Centre Mère et Enfant, Fondation Chantal Biya, Yaoundé, Cameroon; Swiss Tropical Institute, Basel, Switzerland; University Children's Hospital Basel, Switzerland; Mepha Ltd, Aesch, Switzerland; Institute for Clinical Pharmacology, Public Health Research Association Saxony, Technical University, Dresden, Germany

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A fixed-dose pediatric formulation of artesunate and mefloquine (Artequin Pediatric) has been developed. In this open, non-comparative study in Cameroonian children with uncomplicated falciparum malaria, the safety and efficacy of this formulation was tested, with a particular emphasis on the risk of neuropsychiatric adverse events (AEs). In total, 220 subjects, weighing between 10 and 20 kg, were enrolled; 213 qualified for analysis. Artesunate-mefloquine was given once daily for 3 days. Overall, 13.1% of patients reported mild to moderate neuropsychiatric AEs (elicited through a structured questionnaire or reported spontaneously) out of which 3.8% (mainly insomnia) were considered drug-related. Other drug-related AEs were infrequent (< 3%). Polymerase chain reaction-corrected cure rate (adequate clinical and parasitological response) determined by survival analysis at 28 and 63 days was 96.6%. New infections were observed in 11.2% of evaluable patients at 63 days. The new formulation was well tolerated and efficacious in the population investigated.

Author Notes

*Address correspondence to Edgar A. Mueller, Institute for Clinical Pharmacology, Public Health Research Association Saxony, Medical Faculty, Technical University, Fiedlerstrasse 27, D-01307 Dresden. E-mail: Edgar.Mueller@tu-dresden.de
†Deceased.

Financial support: This study was supported by Mepha Ltd, Aesch, Switzerland.

Disclosure: Adrian Frentzel and Sonja Trapp are employees of Mepha Ltd. This statement is made in the interest of full disclosure and not because the authors consider this a conflict of interest.

Authors' addresses: David Chelo, Faculty of Medicine and Biomedical Sciences, University of Yaoundé 1, Cameroon, and Centre Mère et Enfant, Fondation Chantal Biya, Cameroon, E-mail: chelodad6@yahoo.fr. Njiki Kinkela Mina Ntoto and Florence Minjiwa Djoukoue, Centre Mère et Enfant, Fondation Chantal Biya, Yaoundé, Cameroon, E-mails: mnjikin@yahoo.fr and minjiflo@yahoo.fr. Christoph Hatz, Swiss Tropical Institute, Basel, Switzerland, E-mail: Christoph.Hatz@unibas.ch. Sarabel Frey, University Children's Hospital, Basel, Switzerland, E-mail: Sarabel.Frey@ukbb.ch. Adrian Frentzel and Sonja Trapp, Mepha Ltd., Aesch, Switzerland, E-mails: Adrian.Frentzel@mepha.ch and Sonja.Trapp@mepha.ch. Roland Zielonka and Edgar A. Mueller, Institute for Clinical Pharmacology, Public Health Research Association Saxony, Medical Faculty, Technical University, Dresden, Germany, E-mails: Roland.Zielonka@googlemail.com and Edgar.Mueller@tu-dresden.de.

Reprint requests: Edgar A. Mueller, Institute for Clinical Pharmacology, Public Health Research Association Saxony, Medical Faculty, Technical University, Fiedlerstrasse 27, D-01307 Dresden, Germany, E-mail: Edgar.Mueller@tu-dresden.de.

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