Dr Mansoor A. Khan is the Director of Product Quality Research at CDER in FDA. Prior to joining FDA, Dr. Khan was a Professor of Pharmaceutics and Director of Graduate Program in the School of Pharmacy at Texas Tech University Health Sciences Center. He also served as Assistant and then Associate Professor at the Northeast Louisiana University School of Pharmacy. He has earned his Ph.D. degree in Industrial Pharmacy from the St. John's University School of Pharmacy in 1992. He has published over 110 peer-reviewed manuscripts, four texts including the "Pharmaceutical and Clinical Calculations", five book chapters, and more than 100 presentations in various meetings. As a major advisor, Dr. Khan graduated 10 Ph.D.s, who are all employed by leading pharmaceutical industries, academia or FDA. Dr. Khan's research focus is primarily in the area of pharmaceutical technology, evaluation of critical formulation and process variables, drug delivery of challenging molecules, nanoparticles, and aqueous-based coating dispersions. He has held several leadership positions at the AAPS. Recently he was elected as the Vice Chair of PDD section, and selected as AAPS Fellow in 2005. He serves on the editorial board of Pharmaceutical Technology, and Journal of Clinical Research and Regulatory Affairs.