کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2486162 1114377 2011 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Analytical characterization of a novel degradation product in a PEGylated recombinant protein
موضوعات مرتبط
علوم پزشکی و سلامت داروسازی، سم شناسی و علوم دارویی اکتشاف دارویی
پیش نمایش صفحه اول مقاله
Analytical characterization of a novel degradation product in a PEGylated recombinant protein
چکیده انگلیسی
We report the identification and characterization of a novel degradation product associated with PEGylation of a recombinant protein. After several months of storage at 2°C-8°C, an unexpected increase was observed in the proportion of an impurity that eluted with the native unPEGylated protein by size exclusion chromatography‐-from less than 0.01% at the start of storage to more than 0.25% at 12 months. An investigation into the nature of the impurity determined the presence of an N‐terminal adduction with a mass increase of +58 Da over the native unPEGylated protein species, demonstrating that this impurity was the result of degradation. The impurity was subjected to thorough analytical characterization using orthogonal methods to establish its identity, and a mechanistic model proposed for its formation. The data implicate the presence of a monomethoxy polyethylene glycol (mPEG)-acetal aldehyde impurity in the mPEG-aldehyde raw material, indicating the need for diligent raw material testing prior to use. © 2011 Wiley‐Liss, Inc. and the American Pharmacists Association J Pharm Sci 100:4607-4616, 2011
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Pharmaceutical Sciences - Volume 100, Issue 11, November 2011, Pages 4607-4616
نویسندگان
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