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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Nupur, Neh Singh, Sumit Kumar Narula, Gunjan Rathore, Anurag S. |
| Description | Country affiliation: India Author Affiliation: Nupur N ( Department of Chemical Engineering, IIT Delhi, Hauz Khas, New Delhi 110016, India.); Singh SK ( Department of Chemical Engineering, IIT Delhi, Hauz Khas, New Delhi 110016, India.); Narula G ( Department of Chemical Engineering, IIT Delhi, Hauz Khas, New Delhi 110016, India.); Rathore AS ( Department of Chemical Engineering, IIT Delhi, Hauz Khas, New Delhi 110016, India. Electronic address: asrathore@biotechcmz.com.) |
| Abstract | The biosimilar industry is witnessing an unprecedented growth with the newer therapeutics increasing in complexity over time. A key step towards development of a biosimilar is to establish analytical comparability with the innovator product, which would otherwise affect the safety/efficacy profile of the product. Choosing appropriate analytical tools that can fulfil this objective by qualitatively and/or quantitatively assessing the critical quality attributes (CQAs) of the product is highly critical for establishing equivalence. These CQAs cover the primary and higher order structures of the product, product related variants and impurities, as well as process related impurities, and host cell related impurities. In the present work, we use such an analytical platform for assessing comparability of five approved Granulocyte Colony Stimulating Factor (GCSF) biosimilars (Emgrast, Lupifil, Colstim, Neukine and Grafeel) to the innovator product, Neupogen(®). The comparability studies involve assessing structural homogeneity, identity, secondary structure, and product related modifications. Physicochemical analytical tools include peptide mapping with mass determination, circular dichroism (CD) spectroscopy, reverse phase chromatography (RPC) and size exclusion chromatography (SEC) have been used in this exercise. Bioactivity assessment include comparison of relative potency through in vitro cell proliferation assays. The results from extensive analytical examination offer robust evidence of structural and biological similarity of the products under consideration with the pertinent innovator product. For the most part, the biosimilar drugs were found to be comparable to the innovator drug anomaly that was identified was that three of the biosimilars had a typical variant which was reported as an oxidized species in the literature. But, upon further investigation using RPC-FLD and ESI-MS we found that this is likely a conformational variant of the biotherapeutic been studied. |
| File Format | HTM / HTML |
| ISSN | 15700232 |
| Journal | Journal of Chromatography B |
| Volume Number | 1032 |
| e-ISSN | 1873376X |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2016-10-01 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Content Type | Text |
| Resource Type | Article |
| Subject | Cell Biology Medicine Analytical Chemistry Clinical Biochemistry Biochemistry |
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