Open Access
03.08.2020 | Review Article
Biologic Drug Quality Assurance to Optimize
HER2 + Breast Cancer Treatment: Insights from Development of the Trastuzumab Biosimilar
SB3
verfasst von:
Diana Lüftner, Gary H. Lyman, João Gonçalves, Xavier Pivot, Minji Seo
Erschienen in:
Targeted Oncology
|
Ausgabe 4/2020
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Abstract
SB3 is a biosimilar of trastuzumab that has been approved for use in the
treatment of human epidermal growth factor 2-positive breast cancer and human epidermal
growth factor 2-positive gastric cancer. Antibody-dependent cellular cytotoxicity is one
of several critical quality attributes of trastuzumab. Data from the development of SB3
support the hypothesis of a relationship between antibody-dependent cellular
cytotoxicity activity and clinical outcomes in terms of the response rate and long-term
survival. Current analytic methods utilizing advanced technology allow the detection of
small changes in other quality attributes that influence antibody-dependent cellular
cytotoxicity, such as glycosylation and FcγRIIIa binding. Use of such methods to monitor
batch-to-batch consistency enables production of trastuzumab biosimilars with consistent
quality. Trastuzumab biosimilars such as SB3 therefore have the potential to increase
accessibility to trastuzumab-based therapy without compromising efficacy or
safety.