Biotechnology-derived medicines are increasingly popular for treating a range of conditions from cancer to autoimmunity, and yet they are among the most expensive healthcare products owing to their manufacture using live cell cultures. As healthcare providers become increasingly concerned about rising costs, interest is turning to the idea of substituting reference biological drugs with cheaper but similar biological products, or biosimilars, after patents expire on reference products. The use of biosimilars has the potential to reduce healthcare expenditure, particularly for long-term treatments, which incur high annual treatment costs.
In order to consider the financial benefits of switching to biosimilars, Mr Robert Haustein, Mr Christoph de Millas, Dr Ariane Höer and Professor Bertram Häussler from the IGES Institut, Berlin, Germany, have developed a forecast model that explores different scenarios for the cost savings from the use of biosimilars in eight EU countries – France, Germany, Italy, Poland, Romania, Spain, Sweden and UK – between 2007 and 2020.
The study focused on biosimilar erythropoietin and granulocyte-colony stimulating factors, for which biosimilars are already approved in the EU, and biosimilar monoclonal antibodies which are likely to appear on the EU market in the near future. The analysis included data from IMS Health on average selling prices and cumulative sales of current biologicals, as well as epidemiological data to show the size of the potential market for all biological products. The authors then estimated the expected market share of biosimilars compared to reference products, and hence the future growth in consumption of biosimilars and the potential reimbursement costs from substitution.
The study found that by 2020, the expected savings for biosimilars would range from Euros 11.8 billion to 33.4 billion, which equals savings of 5.2% to 14.6% of the estimated expenditures in the selected countries. The bulk of savings is expected to occur in France, Germany and the UK, while the lowest savings are anticipated for Sweden.
Despite the optimistic forecast, however, the authors warn that other steps will need to be taken before such potential savings can be realized, including performing more head to head studies of reference biological drugs and the corresponding biosimilars, so as to lessen physician concerns about the safety and efficacy of biosimilars, and informing physicians about the results of these studies.
Editor’s comment
Readers interested to learn more of how biosimilars can save money in European healthcare systems are invited to view the peer-reviewed manuscript published in GaBI Journal.
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