AUTHOR=Yandrofski Katharina , Mouchahoir Trina , De Leoz M. Lorna , Duewer David , Hudgens Jeffrey W. , Anderson Kyle W. , Arbogast Luke , Delaglio Frank , Brinson Robert G. , Marino John P. , Phinney Karen , Tarlov Michael , Schiel John E. TITLE=Interlaboratory Studies Using the NISTmAb to Advance Biopharmaceutical Structural Analytics JOURNAL=Frontiers in Molecular Biosciences VOLUME=9 YEAR=2022 URL=https://www.frontiersin.org/journals/molecular-biosciences/articles/10.3389/fmolb.2022.876780 DOI=10.3389/fmolb.2022.876780 ISSN=2296-889X ABSTRACT=

Biopharmaceuticals such as monoclonal antibodies are required to be rigorously characterized using a wide range of analytical methods. Various material properties must be characterized and well controlled to assure that clinically relevant features and critical quality attributes are maintained. A thorough understanding of analytical method performance metrics, particularly emerging methods designed to address measurement gaps, is required to assure methods are appropriate for their intended use in assuring drug safety, stability, and functional activity. To this end, a series of interlaboratory studies have been conducted using NISTmAb, a biopharmaceutical-representative and publicly available monoclonal antibody test material, to report on state-of-the-art method performance, harmonize best practices, and inform on potential gaps in the analytical measurement infrastructure. Reported here is a summary of the study designs, results, and future perspectives revealed from these interlaboratory studies which focused on primary structure, post-translational modifications, and higher order structure measurements currently employed during biopharmaceutical development.