Facilitating global development of biosimilars

News 29/10/2014

EMA to allow use of non-EEA authorised comparator in clinical studies; new guidance applicable as of today

The European Medicines Agency (EMA) has published its revised overarching PDF icon guideline on biosimilars . The main change brought by this new guidance is the possibility for medicines developers to use a comparator authorised outside the European Economic Area (EEA) during the clinical investigation of a biosimilar. This new concept is expected to facilitate the global development of biosimilars and to avoid unnecessary repetition of clinical trials.

The revised guideline will come into force as of 30 April 2015. However, applicants can apply some or all provisions of this guideline from today.

A biosimilar is a biological medicine that is similar to a reference biological medicine that has already been authorised in the EEA. A biosimilar is granted a marketing authorisation only if the developer has demonstrated in studies that it is as safe and effective as the reference medicine.

EMA established a regulatory framework for the development of biosimilars in 2005 with the publication of the first overarching guideline defining key principles to be applied for these medicines. This document, together with a series of complementary guidelines that were subsequently developed by EMA, have led to the approval of 19 biosimilars in the European Union to date, including the first two monoclonal-antibody biosimilars.

As part of the development of a biosimilar, an applicant has to conduct studies that show the similar nature, in terms of quality, safety and efficacy, of the biosimilar and the chosen reference medicine authorised in the EEA.

The revised guideline introduces the possibility of comparing a biosimilar in certain clinical studies and in vivo non-clinical studies with a non-EEA-authorised comparator. This comparator will need to be authorised by a regulatory authority with similar rigorous scientific and regulatory standards to those of EMA. It will then be the applicant's responsibility to establish that the comparator is representative of the reference medicine authorised in the EEA.

In addition to this new concept, the revised guideline also clarifies key principles in light of the experience gained since its first release in September 2005, including:

  • the terminology for biosimilars;
  • the principles of biosimilarity, including safety and efficacy aspects;
  • the requirements regarding the posology, route of administration and formulation of biosimilars.

This guideline is one of three EMA overarching biosimilar guidelines. The other two are:

The overarching guidelines are complemented by product-specific guidelines, which give more detailed guidance to applicants in relation to the respective class of products.

EMA's procedural advice on biosimilars has been updated to reflect these changes.

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