This article has been accepted for publication and undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process, which may lead to differences between this version and the Version of Record. Please cite this article as doi: 10.1111/DME.14337 This article is protected by copyright. All rights reserved MS BLÁTHÍN CASEY (Orcid ID : 0000-0001-9086-1258) PROFESSOR SEAN F DINNEEN (Orcid ID : 0000-0002-6636-0493) Article type : Trial Protocol Title: Diabetic Medicine Created by: Maria Davie Email proofs to: blathin.casey@ul.ie Article no.: DME-2020-00033 Article type: Trial Protocol Figures:1; Tables:3; Equations:0; References: 19 Short title/Authors running head: D1 Now randomized pilot study protocol  B. Casey et al. Trial Protocol Improving outcomes among young adults with type 1 diabetes: the D1 Now randomized pilot study protocol B. Casey 1,2 , M. Byrne 2 , D. Casey 3 , P. Gillespie 4 , A. Hobbins 5 , J. Newell 6 , E. Morrissey 2,3 and S. F. Dinneen 7,8 1 Physical Activity for Health Cluster, Health Research Institute, University of Limerick, Limerick, 2 Health Behaviour Change Research Group, School of Psychology, 3 School of Nursing and Midwifery, 4 Health Economics and Policy Analysis Centre, Centre for Research in Medical Devices, 5 Centre for Research in Medical Devices (Cúram) and Health Economics and Policy Accepted Article