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European Medicines Agency finalises review of recent published data on cardiovascular safety of NSAIDs

Pharmacovigilance Risk Assessment Committee (PRAC) to consider need for updated treatment advice for diclofenac in follow-on review

London, UK (October 19, 2012) – The European Medicines Agency has finalised a review of recently published information on the cardiovascular safety of non-steroidal anti-inflammatory drugs (NSAIDs).

The Agency’s Committee for Medicinal Products for Human Use (CHMP) concluded that evidence from newly available published data sources, including meta-analysis of clinical trials and observational studies, and the results of a European Union-funded independent research project, the ‘safety of non-steroidal anti-inflammatory drugs‘ (SOS) project, on the cardiovascular safety of this class of medicines confirm findings from previous reviews, conducted in 2005 and 2006.

Most of the data related to the three most widely used NSAIDs – diclofenac, ibuprofen and naproxen. In relation to naproxen and ibuprofen, the CHMP was of the opinion that the current treatment advice adequately reflects the knowledge regarding the safety and efficacy of these medicines.

For diclofenac, the latest evidence appears to show a consistent but small increase in the risk of cardiovascular side effects for diclofenac compared with other NSAIDs, similar to the risks of COX-2 inhibitors, another class of painkillers. As a follow-on to this review, the Agency’s new Pharmacovigilance Risk Assessment Committee (PRAC) will now assess all available data on diclofenac (both published and unpublished) to consider the need for updated treatment advice.

Previous review led to new research

The CHMP had reviewed NSAIDs in relation to their possible cardiovascular risks, gastrointestinal side effects and serious skin reactions in 2005 and in 2006. At the time, the CHMP concluded that the overall benefit-risk balance of these medicines remained positive, but that a small increased cardiovascular risk could not be excluded. The Committee also acknowledged that the available data were limited and that methodological limitations of previous studies and existing knowledge gaps made it difficult to reach firm conclusions.

The CHMP suggested that the European Commission fund independent epidemiological studies on the safety of NSAIDs through the Seventh Framework Programme, in order to generate robust evidence for the Committee’s decision-making.

An independent research project (the ‘safety of non-steroidal anti-inflammatory drugs’ (SOS)) was subsequently set up, aimed at assessing and comparing the risk of cardiovascular and gastrointestinal events of NSAIDs. The accumulating findings from published studies together with the results of the SOS were the basis of the CHMP review and led to the conclusions described above.

The formal review procedure for diclofenac will start at the next meeting of the PRAC, which will be held from 29-31 October 2012.

Notes

• The ‘safety of non-steroidal anti-inflammatory drugs’ (SOS) project is led by the Erasmus University in Rotterdam.
• The European review of non-selective NSAIDs was conducted in the context of a formal review, initiated at the request of the Medicines and Healthcare Products Regulatory Agency under Article 5(3) of Regulation (EC) No 726/2004, on 19 October 2011. The review includes nationally authorised medicines such as diclofenac, etodolac, ibuprofen, indomethacin, ketoprofen, ketorolac, meloxicam, nabumetone, naproxen, nimesulide and piroxicam.
• Non-selective NSAIDs are indicated in the relief of all grades of pain and inflammation in a wide range of conditions, including arthritic conditions (such as rheumatoid arthritis, osteoarthritis, ankylosing spondylitis and acute gout), acute musculoskeletal disorders (such as periarthritis (for example frozen shoulder), tendinitis, tenosynovitis and bursitis) and other painful conditions resulting from trauma (including fracture, low back pain, sprains, strains, dislocations, orthopaedic, dental and other minor surgery).

European Medicines Agency, 19.10.2012 (tB).