FDAnews
www.fdanews.com/articles/138066-endo-pharmaceuticals-back-pain-drug-disappoints-in-trials

Endo Pharmaceuticals Back Pain Drug Disappoints in Trials

July 1, 2011
Endo Pharmaceuticals said midstage testing results for its experimental chronic lower back pain drug Axomadol showed the new drug candidate did not meet the predetermined study end points for proving its effectiveness.
Philadelphia Business Journal