Ian Harvey, Ph.D.

Senior Scientist

Bristol Myers Squibb

Speaker Bio:

Dr. Ian Harvey received bachelor degrees in Biochemistry/Biophysics and Bioinformatics from Rensselaer Polytechnic Institute, followed by a PhD in Biochemistry/Biophysics and Structural Biology from Washington University in St Louis. Since joining Bristol Myers Squibb, Ian’s work has focused mainly on characterizing protein reagents to help develop high quality assays across multiple platforms for clinical trials. His talk today highlights a somewhat underutilized SPR method, calibration-free concentration analysis, and how this method may be preferrable to conventional protein concentration methods.

Talk title:

Overcoming Lot-to-Lot Variability in Protein Activity Using Epitope-Specific Calibration-Free Concentration Analysis

Talk abstract:

From delays for partial revalidation to inconsistent reported values between labs or clinical studies, protein reagent variability can impact a clinical assay’s lifecycle. We have postulated that a major driver of this variability stems from conventional methods of protein concentration determination, which cannot distinguish active protein species from functionally inert material. As an alternative, we have begun to use Calibration-Free Concentration Analysis (CFCA), an SPR technique, to exclusively measure the active concentration of reagents. Through two independent case studies (a cell-based biomarker assay and ligand-binding biomarker assay), we demonstrate that defining reagents by their assay-specific active concentration considerably decreases the observed in-assay variability between reagents compared to conventional concentration determination. The ability of the CFCA method to unify seemingly disparate reagent activities stems from the fact that it specifically measures the concentration of a folded epitope. Due to this, it shows further promise in studies where conventional concentration determination cannot be easily employed, such as reagent stability testing and quantification of individual components of a mixed calibrator cocktail.

Yunsong (Frank) Li, Ph.D.

Executive Director, US PD and DP Manufacturing

WuXi Biologics

Speaker Bio:

Dr. Frank (Yunsong) Li currently serves as an Executive Director, Head of US PD & DP Manufacturing at WuXi Biologics, based on Cranbury, New Jersey and King of Prussia, Pennsylvania. He oversees all WuXi Biologics development laboratories and Drug product manufacturing in the USA. Before his role at WuXi Biologics, Frank worked at Catalent, Merck & Co. and Amgen with increasing responsibilities.

Besides his current responsibilities at WuXi Biologics, Frank also serves as an Adjunct Professor in The Department of Industrial and Molecular Pharmaceutics at Purdue University,

Dr. Frank Li holds a Ph.D. in Pharmaceutical Chemistry from the University of Kansas, Lawrence, Kansas

Talk title:

Ultra High-Throughput Developability Studies for a More Diverse Biologics Pipeline

Talk abstract:

Coming soon