Clifford Siporin

Clifford Siporin, Ph.D., is the founder of Greystone Pharmaceutical Consulting, Inc, a full service CRO with expertise including contract project management and site monitoring, statistics, manufacturing, IRB, Sponsor, IRB and site auditing, medical and scientific writing, and regulatory affairs (FDA) and product safety issues. Siporin has over 30 years of experience and has accomplishments in all areas of drug development, including significant experience in drug substance and drug product issues as they relate to manufacturing and control, pre-clinical and clinical studies and regulatory parameters related to drug approval, manufacturing, labeling, marketing and distribution.  

Previously, he served as Vice President of Drug Development at G.D. Searle and Co., where he was directly responsible for all development phases for in-licensed compounds, line extensions and new dosage forms. He also served in various senior level positions at Warner Lambert Company/Parke Davis. This included responsibility for consolidating all phases of drug development for anti-infective drugs in the U.S. and worldwide. Siporin also served with distinction in several senior-level positions at Pfizer.  

Siporin completed his doctorate in Microbiology from the University of Dayton.