Pertuzumab is a monoclonal antibody that inhibits the dimerization of human epidermal growth factor receptor 2 (HER2) with other HER receptors, which prevents them from signalling in ways that promote cell growth and proliferation.
Biosimilars of pertuzumab
Biosimilars/General
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Posted 05/04/2019
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Pertuzumab is used in combination with trastuzumab and docetaxel for the treatment of metastatic HER2-positive (HER2+) breast cancer; it is also used in the same combination as a neoadjuvant in early HER2+ breast cancer.
The originator product, Roche’s Perjeta, was approved by the US Food and Drug Administration (FDA) in June 2012 and by the European Medicines Agency (EMA) in March 2013 [1]. Perjeta had estimated global sales of approximately CHF 2.8 billion (Euro 2.5 billion) in 2018.
The marketing exclusivity on Perjeta will expire in the US in June 2024 and in Europe in March 2023 [1]. Some of the pertuzumab biosimilars and non-originator biologicals* approved or in development are presented in Table 1.
Table 1: Biosimilars and non-originator biologicals* of pertuzumab approved or in development | ||
Company name, Country | Product name | Stage of development |
CinnaGen, Iran* | - | Phase-III clinical trial in breast cancer ongoing May 2018 |
JHL Biotech, Taiwan* | JHL1199 | Preclinical (master/working cell banks in progress) |
Mabpharm, India*
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CMAB 810 | Preclinical |
NeuClone/Serum Institute of India, Australia/India* | - | Preclinical |
Shanghai Henlius Biotech, China* | HLX22 | Preclinical |
*See editor’s comment |
Editor’s comment
It should be noted that ‘biogenerics’ approved in Iran, ‘similar biologics’ approved in India, ‘copy biologicals’ approved in China and other ‘non-originator biologicals’ approved outside Europe might not have been authorized following as strict a regulatory process as is required for approval of biosimilars in the European Union. The EMA (European Medicines Agency) regulatory requirements ensure the same high standards of quality, safety and efficacy for biosimilars as for originator biologicals, and also include a rigorous comparability exercise with the reference product.
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Reference
1. Derbyshire M. Patent expiry dates for biologicals: 2017 update. Generics and Biosimilars Initiative Journal (GaBI Journal). 2018;7(1):29-34. doi:10.5639/gabij.2018.0701.007
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Source: EMA, Roche, US FDA
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