Pentanoic acid, 4-(((1,1'-biphenyl)-4-ylcarbonyl)amino)-5-((2-(4-fluorophenyl)-1,1-dimethylethyl)amino)-5-oxo-, (4S)-
AGG-523 is under investigation in clinical trial NCT00380900 (Study Evaluating the Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of Multiple Ascending Doses in Healthy subjects and in subjects with osteoarthritis).