CHAPEL HILL, N.C. & CHARLOTTESVILLE, Va.--(BUSINESS WIRE)--Cempra Pharmaceuticals, Inc., and Biovista, Inc., announced today that they have entered into a research agreement to systematically identify and profile adverse event associations for members of the macrolide drug class. The data generated will be used to better understand the unique benefit/risk characteristics of this important group of antimicrobial drugs, thereby helping to adapt and optimize future clinical trial designs.