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Nature. 2008 Mar 13;452(7184):176-80. doi: 10.1038/nature06722.

A new class of anthelmintics effective against drug-resistant nematodes.

Author information

1
Novartis Centre de Recherche Santé Animale, CH-1566 St Aubin (FR), Switzerland. ronald.kaminsky@novartis.com

Abstract

Anthelmintic resistance in human and animal pathogenic helminths has been spreading in prevalence and severity to a point where multidrug resistance against the three major classes of anthelmintics--the benzimidazoles, imidazothiazoles and macrocyclic lactones--has become a global phenomenon in gastrointestinal nematodes of farm animals. Hence, there is an urgent need for an anthelmintic with a new mode of action. Here we report the discovery of the amino-acetonitrile derivatives (AADs) as a new chemical class of synthetic anthelmintics and describe the development of drug candidates that are efficacious against various species of livestock-pathogenic nematodes. These drug candidates seem to have a novel mode of action involving a unique, nematode-specific clade of acetylcholine receptor subunits. The AADs are well tolerated and of low toxicity to mammals, and overcome existing resistances to the currently available anthelmintics.

PMID:
18337814
DOI:
10.1038/nature06722
[Indexed for MEDLINE]
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