A UK wide collaboration led by the University of Exeter, Royal Devon & Exeter NHS Foundation Trust and the Wellcome Sanger Institute, has demonstrated that a genetic variant carried by 40% of the population explains why some patients develop antibodies against the anti-TNF drugs, infliximab and adalimumab and lose response. The authors conclude that a further trial is required to confirm that genetic testing prior to treatment will reduce the rate of treatment failure by facilitating the most effective choice of therapy for individual patients. The research, part-funded by Wellcome, Crohn’s & Colitis UK, Guts UK, Cure Crohn’s Colitis and supported by the NIHR, is part of a programme of work committed to finding the right drug for the right patient first time.

