Development of E1224 by leveraging a strategic partnership for the medicines creation against neglected tropical diseases
Abstract
Neglected tropical diseases (NTDs) are communicable diseases that are uncommon in developed countries but epidemic in developing countries in tropical and subtropical regions of the world. One of the important contributions expected of pharmaceutical companies is the development and provision of drugs effective against NTDs. Eisai's efforts toward improving global health have resulted in a rich portfolio of assets addressing six infectious diseases: malaria, tuberculosis, Chagas disease, lymphatic filariasis, leishmaniasis, and mycetoma. As the most advanced project, Eisai has developed E1224 (fosravuconazole l-lysine ethanolate), which is available in both intravenous and oral formulations, and provides ravuconazole, an active form of fosravuconazole, with a long plasma half-life. The first clinical trials of E1224, for Chagas disease, have already been completed, led by the Drugs for Neglected Diseases initiative (DNDi). As a result, parasite clearance was observed with E1224 during the treatment phase, but parasite regrowth was observed after the end of drug administration, suggesting that the mechanism of action of E1224 on Trypanosoma cruzi is static rather than parasiticidal. On the other hand, a clinical trial for eumycetoma in collaboration with DNDi is ongoing supported by the Global Health Innovative Technology Fund, and is examining the efficacy of weekly treatment with E1224 versus the current standard of care, daily treatment with itraconazole. In this manner,…
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