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中国生物工程杂志

China Biotechnology
China Biotechnology  2020, Vol. 40 Issue (11): 102-109    DOI: 10.13523/j.cb.2007024
    
Discussion on the Quality Similarity Assessment of Bevacizumab Biosimilar
ZHOU Li-ting(),HU Ying-ying,XU Long-chang,LI Yi-jun,SAI Wen-bo,BAI Yu()
Center for Drug Evaluation, National Medical Products Administration, Beijing 100022, China
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Abstract  

Bevacizumab is one of the most popular subjects for the research and development of biosimilars. Based on the research data of 23 biosimilar sponsors and those of the original manufacturer, combined with the current domestic and international biosimilar guidelines as well as related literatures, the technical assessment key points of the quality similarity of bevacizumab biosimilar were discussed, including the general principles of similarity evaluation of biosimilars, identification of key quality attributes and similarity evaluation of bevacizumab.



Key wordsBevacizumab      Biosimilar      Quality similarity      Critical quality attribute     
Received: 19 July 2020      Published: 11 December 2020
ZTFLH:  Q819  
Corresponding Authors: Li-ting ZHOU,Yu BAI     E-mail: zhoult@cde.org.cn;baiy@cde.org.cn
Cite this article:

ZHOU Li-ting,HU Ying-ying,XU Long-chang,LI Yi-jun,SAI Wen-bo,BAI Yu. Discussion on the Quality Similarity Assessment of Bevacizumab Biosimilar. China Biotechnology, 2020, 40(11): 102-109.

URL:

https://manu60.magtech.com.cn/biotech/10.13523/j.cb.2007024     OR     https://manu60.magtech.com.cn/biotech/Y2020/V40/I11/102

属性 风险 风险等级 相似性评价方法
作用机制
结合活性 有效性和安全性 +++ 等效性检验或质量范围
细胞活性 有效性和安全性 +++ 等效性检验或质量范围
VEGF亲和力 有效性和安全性 +++ 质量范围
FcRn亲和力 有效性和PK +++ 质量范围
一级结构
蛋白质序列 有效性和安全性 +++ 预期值
完整分子量 有效性和安全性 +++ 预期值(质量范围),图谱目视
去糖基分子量 有效性和安全性 +++ 预期值(质量范围),图谱目视
肽图 有效性和安全性 +++ 目视
聚糖图 有效性和安全性 +++ 目视
G0F CDC活性 +++ 质量范围
G1F ++ 质量范围
G2F ++ 质量范围
高甘露糖 PK +++ 质量范围
HC Trp50/108位氧化 有效性(影响VEGFA的结合) +++ 质量范围
HC 258位甲硫氨酸氧化 PK(影响FcRn结合) +++ 质量范围
二硫键配对 有效性和安全性 +++ 预期值
自由巯基 有效性和安全性 ++ 预期值(质量范围)
pI PK +++ 预期值(质量范围),图谱目视
高级结构
圆二色谱 有效性和安全性 +++ 目视
荧光光谱 +++ 目视,质量范围(吸收波长)
DSC +++ 目视,质量范围
纯度、产品相关物质和杂质
SEC-HPLC主峰 有效性和安全性 +++ 质量范围,图谱目视
SEC-HPLC聚体 有效性、PK、免疫原性 +++ 质量范围,图谱目视
SEC-HPLC片段 有效性(效价) +++ 质量范围,图谱目视
CEX-HPLC主峰 有效性、PK +++ 质量范围,图谱目视
属性 风险 风险等级 相似性评价方法
CEX-HPLC酸性峰 +++ 质量范围,图谱目视
CEX-HPLC碱性峰 +++ 质量范围,图谱目视
rCE-SDS:HC+LC 有效性和安全性 +++ 质量范围,图谱目视
rCE-SDS:NGHC 有效性和安全性 +++ 质量范围,图谱目视
nrCE-SDS主峰 有效性和安全性 +++ 质量范围,图谱目视
工艺相关杂质
DNA残留 安全性 +++ 限度属性,目视(相似性不相关)
HCP残留 安全性和免疫原性 +++ 限度属性,目视(相似性不相关)
Protein A残留 安全性 +++ 限度属性,目视(相似性不相关)
一般性质
外观、pH、渗透压 安全性和稳定性 +++ 目视(相似性不相关)
浓度、组成、装量 有效性 +++ 目视
不溶性微粒、可见异物 安全性 +++ 目视(相似性不相关)
外源因子、内毒素、生物负荷 安全性 +++ 目视(相似性不相关)
Table 1 Critical quality attributes of bevacizumab[10,11]
Fig.1 Comparability of glycan map between proposed biosimilars and the originator bevacizumab (a)G0F (b)G1F (c)Man5
Fig.2 Comparability of SEC-HPLC purity between proposed biosimilars and the originator bevacizumab (a)Monomer (b) Aggregate
Fig.3 Comparability of CEX-HPLC purity between proposed biosimilars and the originator bevacizumab (a) Main peak (b)Acidic peak (c)Basic peak
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