Declarations

Ethics approval and consent to participate

Ethics approval was obtained at both study sites (MP-13-2022-2470, NSM) and the requirement to obtain consent was waived.

Consent for publication

Not applicable.

Competing interest

OC has received an honorarium from Janssen and Otsuka-Lundbeck Alliance. MFD has received grants from Janssen and Otsuka-Lundbeck Alliance. MAR has received grants from Otsuka-Lundbeck Alliance, Janssen, Sunovion and Mylan. All other authors have no conflicts of interest that are directly relevant to this study.

Authors details

1Faculty of Medicine, Department of Psychiatry,
2CERVO Brain Research Centre,
3CHU de Québec-Université Laval Research Center – Université Laval,
4Faculty of Pharmacy, Université Laval,
5Quebec Mental Health University Institute, Centre intégré universitaire en santé et services sociaux de la capitale nationale,
6School of Psychology, Université Laval,
7Faculty of Medicine, Department of Psychiatry, Université de Montréal,
8University of Montreal Hospital Research Center,
9Department of Psychiatry, Lausanne University,
10Lausanne University Hospital Research Center,
11Centre Québécois d’Excellence pour la Prévention et le Traitement du Jeu, Université Laval