CDD Database
This link (http://www.collaborativedrug.com/register/fda) connects you to the FDA/Orphan Drug set stored at the web based Collaborative Drug Discovery Database. After a brief free registration (see image below), you may examine various drug screens including drugs tested against Trypanosoma brucei brucei and Trypanosoma cruzi by chosing "data set", and then the appropriate screen.
You will find on the web page, a link to register:

Once registered, Data sets will grant you access to the various databases.
