PMID- 37657201 OWN - NLM STAT- Publisher LR - 20231001 IS - 1872-7123 (Electronic) IS - 0165-1781 (Linking) VI - 328 DP - 2023 Oct TI - Recreational cannabis use over time in individuals at clinical high risk for psychosis: Lack of associations with symptom, neurocognitive, functioning, and treatment patterns. PG - 115420 LID - S0165-1781(23)00370-0 [pii] LID - 10.1016/j.psychres.2023.115420 [doi] AB - Recreational cannabis use has recently gained considerable interest as an environmental risk factor that triggers the onset of psychosis. To date, however, the evidence that cannabis is associated with negative outcomes in individuals at clinical high risk (CHR) for psychosis is inconsistent. The present study tracked cannabis usage over a 2-year period and examined its associations with clinical and neurocognitive outcomes, along with medication rates. CHR youth who continuously used cannabis had higher neurocognition and social functioning over time, and decreased medication usage, relative to non-users. Surprisingly, clinical symptoms improved over time despite the medication decreases. CI - Copyright (c) 2023. Published by Elsevier B.V. FAU - Carrion, Ricardo E AU - Carrion RE AD - Division of Psychiatry Research, The Zucker Hillside Hospital, Northwell Health, 75-59 263rd Street, Glen Oaks, NY 11004, United States; Institute of Behavioral Science, Feinstein Institutes for Medical Research, Northwell Health, Manhasset, NY, United States; Department of Psychiatry, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, New York 11549, United States. FAU - Auther, Andrea M AU - Auther AM AD - Division of Psychiatry Research, The Zucker Hillside Hospital, Northwell Health, 75-59 263rd Street, Glen Oaks, NY 11004, United States; Department of Psychiatry, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, New York 11549, United States. FAU - McLaughlin, Danielle AU - McLaughlin D AD - Division of Psychiatry Research, The Zucker Hillside Hospital, Northwell Health, 75-59 263rd Street, Glen Oaks, NY 11004, United States. FAU - Adelsheim, Steven AU - Adelsheim S AD - Department of Psychiatry, Stanford University School of Medicine, Palo Alto, California, United States. FAU - Burton, Cynthia Z AU - Burton CZ AD - Department of Psychiatry & Behavioral Health, The Ohio State University, Columbus, Ohio, United States. FAU - Carter, Cameron S AU - Carter CS AD - Department of Psychiatry and Behavioral Sciences, Imaging Research Center, the University of California at Davis, Sacramento, CA, United States; Department of Psychology, Center for Neuroscience, the University of California at Davis, Davis, CA, United States. FAU - Niendam, Tara AU - Niendam T AD - Department of Psychiatry and Behavioral Sciences, Imaging Research Center, the University of California at Davis, Sacramento, CA, United States; Department of Psychology, Center for Neuroscience, the University of California at Davis, Davis, CA, United States. FAU - Ragland, J Daniel AU - Ragland JD AD - Department of Psychiatry and Behavioral Sciences, Imaging Research Center, the University of California at Davis, Sacramento, CA, United States. FAU - Sale, Tamara G AU - Sale TG AD - EASA Center for Excellence at Oregon Health & Science University, PSU School of Public Health, Portland, Oregon, United States. FAU - Taylor, Stephan F AU - Taylor SF AD - Department of Psychiatry & Behavioral Health, The Ohio State University, Columbus, Ohio, United States. FAU - Tso, Ivy F AU - Tso IF AD - Department of Psychiatry & Behavioral Health, The Ohio State University, Columbus, Ohio, United States. FAU - McFarlane, William R AU - McFarlane WR AD - Tufts University School of Medicine, Boston, MA, United States; Maine Medical Center Research Institute, Portland, ME, United States. FAU - Cornblatt, Barbara A AU - Cornblatt BA AD - Division of Psychiatry Research, The Zucker Hillside Hospital, Northwell Health, 75-59 263rd Street, Glen Oaks, NY 11004, United States; Institute of Behavioral Science, Feinstein Institutes for Medical Research, Northwell Health, Manhasset, NY, United States; Department of Psychiatry, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, New York 11549, United States; Department of Molecular Medicine, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, New York 11549, United States. Electronic address: bcornblatt@northwell.edu. LA - eng PT - Journal Article DEP - 20230815 PL - Ireland TA - Psychiatry Res JT - Psychiatry research JID - 7911385 SB - IM OTO - NOTNLM OT - Cannabis OT - Clinical high risk for psychosis OT - Prevention COIS- Declaration of Competing Interest There are no conflicts of interest for any of the authors with respect to the data in this paper or for the study. Dr. Niendam is co-founder and shareholder in Safari Health Inc. Dr. Cornblatt was the original developer of the CPT-IP. Dr. McFarlane provides training on request to public and not-for-profit clinical services implementing psychosis early intervention programs. EDAT- 2023/09/02 05:42 MHDA- 2023/09/02 05:42 CRDT- 2023/09/01 18:04 PHST- 2023/03/29 00:00 [received] PHST- 2023/07/17 00:00 [revised] PHST- 2023/08/14 00:00 [accepted] PHST- 2023/09/02 05:42 [pubmed] PHST- 2023/09/02 05:42 [medline] PHST- 2023/09/01 18:04 [entrez] AID - S0165-1781(23)00370-0 [pii] AID - 10.1016/j.psychres.2023.115420 [doi] PST - ppublish SO - Psychiatry Res. 2023 Oct;328:115420. doi: 10.1016/j.psychres.2023.115420. Epub 2023 Aug 15.