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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Beckman, David A. Youreneff, Maureen Butt, Mark T. |
| Description | Country affiliation: United States Author Affiliation: Beckman DA ( Preclinical Safety, Novartis Institute for Biomedical Research, East Hanover, New Jersey 07936, USA. david.beckman@novartis.com) |
| Abstract | BACKGROUND: Oral administration of artemether in combination with lumefantrine is approved for the treatment of malaria in adults and children. In adult animals, artemether can produce neurotoxicity with intramuscular, but not oral, administration. Herein, the potential of orally administered artemether to produce neurotoxicity in juvenile rats was investigated. METHODS: In the first study, the toxicity of artemether was evaluated in juvenile rats dosed with 0, 10, 30, and 100mg/kg/day on postpartum days (ppds) 7 to 21. In-life, clinical pathology, anatomic pathology, behavioral, and toxicokinetics evaluations were performed. The second study focused on neurotoxicity during different dosing intervals, with doses of 0, 30, and 80 mg/kg/day on ppds 7 to 13, and doses of 0, 30, and 120 mg/kg/day on ppds 14 to 21, 22 to 28, and 29 to 36. For each dosing interval, in-life, extensive histology, toxicokinetics, and behavioral evaluations were performed. In the third study, toxicokinetics evaluations in the adult were conducted at 20 and 200 mg/kg/day. RESULTS: The first study demonstrated increased mortality, renal necrosis, and brain hemorrhage at ≥30 mg/kg/day with no persistent effects in surviving animals. In the second study, increased mortality, body weight effects, and a trend toward increased exposure were observed in the ppd 14 and younger animals. Neither specific neurotoxicity nor persistent effects were seen. The toxicokinetic study in adults revealed lower exposures as compared to those in the younger juvenile rats. CONCLUSIONS: As in the adult rat, oral administration of artemether in the juvenile rat is not associated with the neurotoxicity produced by intramuscular administration. |
| File Format | HTM / HTML |
| ISSN | 15429733 |
| Issue Number | 2 |
| Volume Number | 98 |
| e-ISSN | 15429741 |
| Journal | Birth Defects Research Part B: Developmental and Reproductive Toxicology |
| Language | English |
| Publisher | Wiley |
| Publisher Date | 2013-04-01 |
| Publisher Place | United States |
| Access Restriction | Subscribed |
| Subject Keyword | Discipline Teratology Discipline Toxicology Antimalarials Administration & Dosage Toxicity Artemisinins Neurotoxicity Syndromes Pathology Administration, Oral Animals Pharmacokinetics Body Weight Drug Effects Dose-response Relationship, Drug Ethanolamines Female Fluorenes Kinetics Male No-observed-adverse-effect Level Rats Rats, Wistar Toxicity Tests Journal Article |
| Content Type | Text |
| Resource Type | Article |
| Subject | Developmental Biology Health, Toxicology and Mutagenesis Toxicology Embryology |
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