“…Image capillary isoelectric focusing (icIEF) allows the cIEF process to be “imaged” in real-time using whole-column imaging detection (WCID) technology. While, cIEF has been employed for charge profiling of biosimilar candidates of Amgen’s adalimumab (ABP 501) ( Liu et al, 2016 ) and bevacizumab (ABP 215) ( Seo et al, 2018 ), and Probiomed S.A. de C.V.’s rituximab (Kikuzubam) ( Miranda-Hernandez et al, 2015 ), etanercept (Infinitam ® ) ( Miranda-Hernández et al, 2016 ), trastuzumab-Probiomed ( López-Morales et al, 2015 ) and infliximab-Probiomed ( Velasco-Velázquez et al, 2017 ); examples of biosimilarity platforms with icIEF include Pfizer’s infliximab (PF-06438179) ( Derzi et al, 2016 ) and adalimumab (PF-06410293) ( Derzi et al, 2020 ), Zhejiang Hisun’s tocilizumab (HS628) ( Miao et al, 2017 ), Samsung Bioepis’s infliximab (SB2) ( Hong et al, 2017 ) and adalimumab (SB5) ( Lee et al, 2019 ), and Shanghai Henlius’s rituximab (HLX01) ( Xu et al, 2019 ), trastuzumab (HLX02) ( Xie et al, 2020 ) and adalimumab (HLX03) ( Zhang et al, 2020 ) ( Supplementary Table S4 ).…”