A Digital Health Innovation to Prevent Relapse and Support Recovery in Youth Receiving Specialized Services for First-Episode Psychosis: Protocol for a Pilot Pre-Post, Mixed Methods Study of Horyzons-Canada (Phase 2)

Shalini Lal   ^{1, 2, 3, 4} , BScOT, MSc, PhD ;   John F Gleeson   ⁵ , PhD ;   Simon D'Alfonso   ⁶ , BA, BSc, PhD ;   Geraldine Etienne   ⁴ , MA ;   Ridha Joober   ^{3, 4, 7} , MD, PhD ;   Martin Lepage   ^{3, 7} , PhD ;   Hajin Lee   ^{1, 2} , BSc, MA, PhD ;   Mario Alvarez-Jimenez   ^{8, 9} , MAResearchMeth, DClinPsy, PhD

¹ School of Rehabilitation, Faculty of Medicine, University of Montréal, Montréal, QC, Canada

² Youth Mental Health and Technology Lab, Health Innovation and Evaluation Hub, University of Montréal Hospital Research Centre, Montréal, QC, Canada

³ Prevention and Early Intervention Program for Psychosis, Douglas Mental Health University Institute, Montréal, QC, Canada

⁴ ACCESS Open Minds, Douglas Mental Health University Institute, Montréal, QC, Canada

⁵ Healthy Brain and Mind Research Centre and School of Behavioural and Health Sciences, Australian Catholic University, Fitzroy, Australia

⁶ School of Computing and Information Systems, University of Melbourne, Parkville, Australia

⁷ Department of Psychiatry, McGill University, Montréal, QC, Canada

⁸ Centre for Youth Mental Health, University of Melbourne, Parkville, Australia

⁹ Orygen, Parkville, Australia