Accelerating the identification of promising drug candidates and decreasing the costs associated with getting them to market are among the most important goals for the pharmaceutical industry [4]. A recent publication by J.C. Weeks et al. [5] has opened new doors in the search for innovative treatments of helminth (worm) infections. The authors performed a high-throughput screening of 218 compounds from the NIH Clinical Collection aimed at identifying hits that can perturb the life cycle of Caenorhabditis elegans, a nematode worm often used as a model for many human diseases. Three common drugs emerged: sertraline, paroxetine, and chlorpromazine (Figure 1). The first two are prescribed as antidepressants, whereas chlorpromazine is known as an antipsychotic. The study discovered that the three drugs act on C. elegans through non-canonical modes of action, and also measured their broad spectrum anti-parasitic effects against the parasitic nematodes, Trichuris and Ancylostoma, and the Schistosoma flatworm. The authors concluded that repurposing these commercially available medications, in combination with conventional anthelmintic drugs, could improve efficacy and limit the emergence of drug-resistant helminths.
Accelerating the identification of promising drug candidates and decreasing the costs associated with getting them to market are among the most important goals for the pharmaceutical industry [4]. A recent publication by J.C. Weeks et al. [5] has opened new doors in the search for innovative treatments of helminth (worm) infections. The authors performed a high-throughput screening of 218 compounds from the NIH Clinical Collection aimed at identifying hits that can perturb the life cycle of Caenorhabditis elegans, a nematode worm often used as a model for many human diseases. Three common drugs emerged: sertraline, paroxetine, and chlorpromazine (Figure 1). The first two are prescribed as antidepressants, whereas chlorpromazine is known as an antipsychotic. The study discovered that the three drugs act on C. elegans through non-canonical modes of action, and also measured their broad spectrum anti-parasitic effects against the parasitic nematodes, Trichuris and Ancylostoma, and the Schistosoma flatworm. The authors concluded that repurposing these commercially available medications, in combination with conventional anthelmintic drugs, could improve efficacy and limit the emergence of drug-resistant helminths.