Okkersen, KeesJimenez-Moreno, CeciliaWenninger, StephanDaidj, FerroudjaGlennon, JeffreyCumming, SarahLittleford, RobertaMonckton, Darren G.Lochmüller, HannsCatt, MichaelFaber, Catharina G.Hapca, AdrianDonnan, Peter T.Gorman, GráinneBassez, GuillaumeSchoser, BenediktKnoop, HansTreweek, Shaunvan Engelen, Baziel G.M.OPTIMISTIC Consortium2018-12-192018-12-192018-08-01Okkersen, K, Jimenez-Moreno, C, Wenninger, S, Daidj, F, Glennon, J, Cumming, S, Littleford, R, Monckton, D G, Lochmüller, H, Catt, M, Faber, C G, Hapca, A, Donnan, P T, Gorman, G, Bassez, G, Schoser, B, Knoop, H, Treweek, S, van Engelen, B G M & OPTIMISTIC Consortium 2018, 'Cognitive behavioural therapy with optional graded exercise therapy in patients with severe fatigue with myotonic dystrophy type 1 : a multicentre, single-blind, randomised trial', The Lancet neurology, vol. 17, no. 8, pp. 671-680. https://doi.org/10.1016/S1474-4422(18)30203-51474-4422ORCID: /0000-0002-7239-7241/work/186968575http://hdl.handle.net/2164/11677This study was funded by the European Union Seventh Framework Program, under grant agreement number 305697 (the Observational Prolonged Trial In Myotonic dystrophy type 1 to Improve Quality of Life Standards, a Target Identification Collaboration [OPTIMISTIC] project). We thank Marie Kierkegaard (Karolinska University Hospital, Karolinska Institutet, Department of Physical Therapy, Sweden) and Don MacKenzie (Marigold Foundation, Calgary, AB, Canada) as members of the external advisory board for their continued monitoring and recommendations for improvement of our study. The Health Services Research Unit (University of Aberdeen, Aberdeen, UK) receives core funding from the Chief Scientist Office of the Scottish Government Health Directorates. We acknowledge the contribution to this study made by the Tayside Clinical Trials Unit, University of Dundee (Dundee, UK).10645901engRC0321 Neuroscience. Biological psychiatry. NeuropsychiatryEuropean Commission305697Chief Scientist Office (CSO)Supplementary DataRC0321Journal article10.1016/S1474-4422(18)30203-5178