DNDI-5561 is the most advanced compound of the aminopyrazole series. DNDi developed the series from a single high-throughput screening hit, which was originally identified in an in vitro screen of Pfizer’s compound library. A hit-to-lead project conducted by DNDi produced improved leads with activity in animal models of leishmaniasis. The optimization of these leads to produce DNDI-5561 was achieved in a partnership between DNDi, Takeda Pharmaceutical Company Limited, and the GHIT Fund.

Project updates

Due to unfavourable safety results in pre-clinical studies, the decision was made to stop development of DNDI-5561 in 2019.