Since there are several other such meds being developed by other drugmakers, including Lilly, the results raised questions not only about regulatory approval, but the ability of Bydureon to establish a needed edge.

FORBES: Lilly And Amylin End Their Bad Marriage

Diagnostic tests to predict who will benefit have emerged for other expensive drugs, including Eli Lilly's Erbitux and Amgen's Vectibix, but not for Avastin.

FORBES: Magazine Article

Including Xigris, Lilly plans five new drug launches in little more than a year, with another eight drug compounds on the way.

FORBES: Magazine Article