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Marc‐André Roy

Laval University

45H-index
292Paper Count
6.3KCitation Count
Published Papers 124
Publication Date
Expanding the toolbox of interventions for cannabis use disorder in individuals with first-episode psychosis: A pilot randomized controlled trial of iCanChange (iCC), a novel app-based psychological intervention
err2026-09-28
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PREAI
errSelim Abou-Rahal; Ovidiu Tatar; Amal Abdel-Baki; Stephanie Coronado-Montoya; José Côté; Candice E. Crocker; Jean-Gabriel Daneault; Pamela Lachance-Touchette; Clairélaine Ouellet-Plamondon; Marc-André Roy; Philip G. Tibbo; Marie Villeneuve; Didier Jutras-Aswad
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An appraisal of practice guidelines for early intervention services for psychosis: Using AGREE II (Appraisal of Guidelines for Research and Evaluation) to enhance the quality and trustworthiness of guidelines in the future
err2026-07-01
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PREAI
errFerrari, Manuela; Pawliuk, Nicole; Shah, Jai; Abdel-Baki, Amal; Tibbo, Phil; Addington, Donald; Roy, Marc-Andre; Joober, Ridha; MacDonald, Kevin; Iyer, Srividya N.
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Healthcare Pattern of Use Before and After Initiating a Long-Acting Antipsychotic Among a Cohort of 6221 Patients With a History of Psychosis
err2026-06-29
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PREAI
errEmmanuel Stip; Josiane Courteau; Sébastien Brodeur; Yohann M. Chiu; Marie-Josée Fleury; Alain Lesage; Marc-André Roy
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Integrating gaming disorder into early intervention in first-episode psychosis - current knowledge and future directions
err2025-12-01
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errHuot-Lavoie, Maxime; Cobeil, Olivier; Roy, Olivier; L'heureux, Sophie; Dufour, Magali; Lavallee, Josiane; Bechard, Laurent; Brodeur, Sebastien; Demers, Marie-France; Roy, Marc-Andre; Khazaal, Yasser
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Using a Learning Health System to Integrate Peer Support in Early Intervention Services for Psychosis in Quebec: Protocol for a Participatory, Mixed-Methods Study (the PAIRPEP Project)
err2025-10-01
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errTodesco, Beatrice; Iyer, Srividya N.; Ferrari, Manuela; Roy, Marc-Andre; Morin, Marie-Helene; Deschenes, Julie Marguerite; Arbaud, Camille; Julien, Gabriel; Bosse, Annie; Levasseur, Mary Anne; Abdel-Baki, Amal
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Factors shaping the decision-making process to continue or discontinue antipsychotics: exploratory qualitative study of 12 individuals in remission from first-episode psychosis
err2025-09-04
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errBechard, Laurent; Anderson, Elizabeth; Corbeil, Olivier; Huot-Lavoie, Maxime; Brodeur, Sebastien; Abdel-Baki, Amal; Masse, Charles; Gabriel-Courval, Mina; Cote, Marie-Eve; Leblanc, Annie; Roy, Marc-Andre; Demers, Marie-France; Lauzier, Sophie
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A pilot randomized controlled trial of a digital cannabis harm reduction intervention for young adults with first-episode psychosis who use cannabis
err2025-05-17
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errStephanie Coronado-Montoya; Amal Abdel-Baki; Paule Bodson-Clermont; David Boucher-Roy; José Côté; Candice E. Crocker; David Crockford; Jean-Gabriel Daneault; Simon Dubreucq; Maxime Dussault-Laurendeau; Benedikt Fischer; Pamela Lachance-Touchette; Tania Lecomte; Sophie L’Heureux; Clairélaine Ouellet-Plamondon; Marc-André Roy; Ovidiu Tatar; Philip G Tibbo; Marie Villeneuve; Anne Wittevrongel; Didier Jutras-Aswad
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SARPEP, a rapid-learning healthcare system of early intervention services for psychosis in Quebec, Canada: Feasibility, acceptability and early impacts
err2025-03-01
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PREAI
errAbdel-Baki, Amal; Ferrari, Manuela; Leblanc, Annie; Arbaud, Camille; Rabouin, Daniel; Roy, Marc-Andre; Iyer, Srividya N.
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Prevalence of schizophrenia spectrum and other psychotic disorders in problem gambling: A systematic review and meta-analysis
err2024-09-25
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errCorbeil, Olivier; Bechard, Laurent; Anderson, Elizabeth; Huot-Lavoie, Maxime; Desmeules, Charles; Bachand, Lauryann; Brodeur, Sebastien; Carmichael, Pierre-Hugues; Jacques, Christian; Solmi, Marco; Dorval, Michel; Giroux, Isabelle; Roy, Marc-Andre; Demers, Marie-France
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Psychotic Disorders and exosomes: An overview of current evidence and future directions
err2024-09-01
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PREAI
errDesmeules, Charles; Corbeil, Olivier; Huot-Lavoie, Maxime; Bechard, Laurent; Brodeur, Sebastien; Demers, Marie-France; Roy, Marc-Andre; Deslauriers, Jessica
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Association Between Prior Antipsychotic Adherence and Adherence Three Years After Clozapine Initiation: A Real-World Observational Study
err2024-08-01
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errBrodeur, Sebastien; Courteau, Josiane; Vanasse, Alain; Roy, Marc-Andre; Courteau, Mireille
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French validation of the CASIG-rev - a clinical personal recovery assessment for people with psychiatric disorders
err2024-07-21
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PREAI
errLecomte, Tania; Heyden, Isabelle; Raffard, Stephane; Khazaal, Yasser; Livet, Audrey; Power, Pamela; Roy, Marc-Andre; Abdel-Baki, Amal; Corbiere, Marc
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Reply to: Why does problem gambling in psychotic disorders pose such a challenge for comprehension?
err2024-07-05
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PREAI
errCorbeil, Olivier; Anderson, Elizabeth; Bechard, Laurent; Desmeules, Charles; Huot-Lavoie, Maxime; Bachand, Lauryann; Brodeur, Sebastien; Carmichael, Pierre-Hugues; Jacques, Christian; Solmi, Marco; Giroux, Isabelle; Dorval, Michel; Demers, Marie-France; Roy, Marc-Andre
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Preferences of Young Adults With Psychosis for Cannabis-Focused Harm Reduction Interventions: A Cross-Sectional Study: Préférences des jeunes adultes souffrant de psychose pour les interventions de réduction des méfaits axées sur le cannabis : une étude transversale
err2024-04-04
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errCoronado-Montoya, Stephanie; Abdel-Baki, Amal; Crockford, David; Cote, Jose; Dubreucq, Simon; Dyachenko, Alina; Fischer, Benedikt; Lecomte, Tania; L'Heureux, Sophie; Ouellet-Plamondon, Clairelaine; Roy, Marc-Andre; Tibbo, Philip; Villeneuve, Marie; Jutras-Aswad, Didier
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Problem gambling in psychotic disorders: A systematic review and meta-analysis of prevalence
err2024-04-02
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errOAAI
errCorbeil, Olivier; Anderson, Elizabeth; Bechard, Laurent; Desmeules, Charles; Huot-Lavoie, Maxime; Bachand, Lauryann; Brodeur, Sebastien; Carmichael, Pierre-Hugues; Jacques, Christian; Solmi, Marco; Giroux, Isabelle; Dorval, Michel; Demers, Marie-France; Roy, Marc-Andre
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Speech markers to predict and prevent recurrent episodes of psychosis: A narrative overview and emerging opportunities
err2024-04-01
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PREAI
errZaher, Farida; Diallo, Mariama; Achim, Aelie M.; Joober, Ridha; Roy, Marc-Andre; Demers, Marie -France; Subramanian, Priya; Lavigne, Katie M.; Lepage, Martin; Gonzalez, Daniela; Zeljkovic, Irnes; Davis, Kristin; Mackinley, Michael; Sabesan, Priyadharshini; Lal, Shalini; Voppel, Alban; Palaniyappan, Lena
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Effect of Cannabis Legalization in Canada on the Incidence of Psychosis Consultations in Quebec City's Psychiatric Emergency Services
err2024-02-21
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errOAAI
errL'Heureux, Sophie; Huot-Lavoie, Maxime; Bergeron, Audrey; Bergeron, Christina; Blouin, Bruno-Pier; Roy, Marc-Andre
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