The Finnish Medicines Agency, Fimea, announced on 22 May 2015 that it was recommending the interchangeability of biosimilars for their reference biologicals.
Fimea is of the position that biosimilars licensed in the European Union are interchangeable, and it is therefore making this recommendation to the healthcare system in Finland.
It has been argued that repeated switches between a biosimilar and its reference biological may increase immunogenicity with potentially negative effects on the safety and/or efficacy of the products. This would, however, also apply to switches between different originator biologicals of the same class.
Fimea has based its recommendation on the following:
- switches between biological products are common and usually not problematic, e.g. in the context of hospital tendering processes
- there is currently no evidence for adverse effects due to a switch from a reference product to a biosimilar
- the theoretical basis of such adverse effects is weak
- the risk of adverse effects can be expected to be similar to the risk associated with changes in the manufacturing process of any biological product.
The Fimea recommendation does not, however, recommend automatic substitution at the pharmacy level. The agency specifically recommends that biosimilars are interchangeable with their reference products only under the supervision of a healthcare professional.
The Finnish decision, although positive, does not go as far as French legislation, which, if decrees are passed, will allow pharmacists in France to substitute a biosimilar for the prescribed (reference) biological under certain conditions, including only when initiating a course of treatment and that the prescribing physician has not marked the prescription as ‘non-substitutable’ [1].
Related article
Efficacy, extrapolation and interchangeability of biosimilars
Reference
1. GaBI Online - Generics and Biosimilars Initiative. France to allow biosimilars substitution [www.gabionline.net]. Mol, Belgium: Pro Pharma Communications International; [cited 2015 May 29]. Available from: www.gabionline.net/Policies-Legislation/France-to-allow-biosimilars-substitution
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