Researchers from Ghent University (UGhent), Austria Veterinary Medicine School (Austria VetMed) and the Royal Veterinary College (RVC) have found that testing anti-epileptic drugs’ effectiveness and safety for cats has been generally subpar, worse than what was formerly reported in dogs.
By reviewing, assessing and untangling vast amounts of data, the researchers found that much of the evidence for the medical treatment of feline epilepsy was based on below-par reporting of efficacy and adverse effect. It is hoped that these findings will inform practices going forward, highlight the need for more high quality evidence and, by extension, improve the treatment that epileptic cats receive.
This was the first ever systematic review on the efficacy and safety of all anti-epileptic drugs (AEDs) in feline epilepsy. The aim of the study was to assess the efficacy and adverse effect profile of each individual AED by analysing all available data published and then evaluating how reliable it was.
The researchers gathered, screened and assessed all the information published in peer-reviewed journals and publications. The individual studies were then evaluated based on the quality of evidence, study design, study group sizes, subject enrolment quality and overall risk of bias, as well as the efficacy and safety outcome measures. The results provide a new and more objective insight into the efficacy and safety of the AEDs.
Lead-author of the study, Marios Charalambous from Ghent University, said: "We recruited systematic methods to combine, compare and summarise the results of independent studies and, therefore, create more objective and reliable conclusions based on the current evidence. It was a time-consuming, demanding and challenging process, and we hope we provided the clinicians now with essential information which they can use for daily practice".
Dr Akos Pakozdy, feline epilepsy specialist from Vetmeduni Vienna, commented: “We hope that this landmark paper will be one of the first steps in bringing evidence-based medicine into practice.”
Dr Sofie Bhatti, epilepsy specialist from Ghent University echoed his comment: “More publications and collaborative research is needed to help close the gap between evidence-based medicine and clinical practice”.
Holger Volk, Head of the Department Clinical Science and Services and Professor of Veterinary Neurology and Neurosurgery at the RVC, summarised: “Not only does this study offer a new perspective on the management of feline epilepsy, but also highlights the importance of the need for trials which provide high quality evidence in order to have more reliable and objective results about the efficacy and safety of the AEDs in feline epilepsy.”
The study was published in BMC Veterinary Research (https://doi.org/10.1186/s12917-018-1386-3).
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About the Royal Veterinary College
• The Royal Veterinary College (RVC) is the UK's largest and longest established independent veterinary school and is a constituent College of the University of London.
• The RVC offers undergraduate, postgraduate and CPD programmes in veterinary medicine, veterinary nursing and biological sciences, being ranked in the top 10 universities nationally for biosciences degrees.
• It is currently the only veterinary school in the world to hold full accreditation from AVMA, EAEVE, RCVS and AVBC.
• In 2017, the RVC received a Gold award from the Teaching Excellence Framework (TEF) – the highest rating a university can receive.
• A research-led institution, in the most recent Research Excellence Framework (REF2014) the RVC maintained its position as the top HEFCE funded veterinary focused research institution.
• The RVC ranked as the top vet school in the Agriculture, Veterinary and Food Science unit of the most recent Research Assessment Exercise, with 55% of academics producing world-class and internationally excellent research.
• The College also provides animal owners and the veterinary profession with access to expert veterinary care and advice through its teaching hospitals; the Beaumont Sainsbury Animal Hospital in central London, the Queen Mother Hospital for Animals (Europe's largest small animal referral centre), the Equine Referral Hospital, and the Farm Animal Clinical Centre located at the Hertfordshire campus.