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2026

Journal Article

Explaining an abrupt, substantial reduction in US opioid overdose deaths

Hall, Wayne and Fischer, Benedikt (2026). Explaining an abrupt, substantial reduction in US opioid overdose deaths. International Journal of Drug Policy 105301, 1-3. doi: 10.1016/j.drugpo.2026.105301

Explaining an abrupt, substantial reduction in US opioid overdose deaths

2026

Journal Article

Sociodemographic trends in daily, weekly and less than weekly cannabis use in Australia

Leung, Janni, Chan, Gary Chung Kai, Zhang, Ruofan, Hall, Wayne D. and McClure‐Thomas, Caitlin (2026). Sociodemographic trends in daily, weekly and less than weekly cannabis use in Australia. Drug and Alcohol Review, 45 (6) e70207. doi: 10.1111/dar.70207

Sociodemographic trends in daily, weekly and less than weekly cannabis use in Australia

2026

Journal Article

Confusing Uncertainty With Bias: The Challenges of Working With Real‐World Data

Wilson, Jack, Sunderland, Matthew, O'Dean, Siobhan, Slade, Tim, Dawson, Danielle, Dobson, Olivia, Leung, Janni, Chan, Gary, Teesson, Maree, Hall, Wayne, Newton, Nicola, Lorenzetti, Valentina and Stockings, Emily (2026). Confusing Uncertainty With Bias: The Challenges of Working With Real‐World Data. Drug and Alcohol Review, 45 (6) e70242, e70242-e70242. doi: 10.1111/dar.70242

Confusing Uncertainty With Bias: The Challenges of Working With Real‐World Data

2026

Journal Article

Patterns and correlates of disposable e-cigarette use among US youth

Vu, Giang T., Sun, Tianze, Connor, Jason P., Thai, Phong, Gartner, Coral, Hall, Wayne, Leung, Janni and Chan, Gary (2026). Patterns and correlates of disposable e-cigarette use among US youth. American Journal of Preventive Medicine, 71 (2) 108352, 1-10. doi: 10.1016/j.amepre.2026.108352

Patterns and correlates of disposable e-cigarette use among US youth

2026

Journal Article

Efficacy and safety of cannabinoids – Authors’ reply

Wilson, Jack, Dobson, Olivia, Langcake, Andrew, Mishra, Palkesh, Bryant, Zachary, Leung, Janni, Dawson, Danielle, Graham, Myfanwy, Teesson, Maree, Freeman, Tom P, Hall, Wayne, Chan, Gary C K and Stockings, Emily (2026). Efficacy and safety of cannabinoids – Authors’ reply. The Lancet Psychiatry, 13 (8), 642-643. doi: 10.1016/S2215-0366(26)00198-7

Efficacy and safety of cannabinoids – Authors’ reply

2026

Journal Article

Recent decreases in drug overdose deaths: Assessing evidence for supply-related drivers and implications for health-oriented drug policy in Canada

Fischer, Benedikt and Hall, Wayne (2026). Recent decreases in drug overdose deaths: Assessing evidence for supply-related drivers and implications for health-oriented drug policy in Canada. Preventive Medicine , 209 108607, 108607-108607. doi: 10.1016/j.ypmed.2026.108607

Recent decreases in drug overdose deaths: Assessing evidence for supply-related drivers and implications for health-oriented drug policy in Canada

2026

Journal Article

A cross-national comparison of nonmedical and medical use of psychedelic drugs in the international cannabis policy study

Graham, Myfanwy, Ge, Yimin, Pacula, Rosalie Liccardo, Pessar, Seema Choksy, Wilkins, Chris, Hall, Wayne and Hammond, David (2026). A cross-national comparison of nonmedical and medical use of psychedelic drugs in the international cannabis policy study. International Journal of Drug Policy, 154 105348, 1-10. doi: 10.1016/j.drugpo.2026.105348

A cross-national comparison of nonmedical and medical use of psychedelic drugs in the international cannabis policy study

2026

Journal Article

Kommentare zu DG-Sucht et al. (2026): Evaluation des Konsumcannabisgesetzes: Vorläufige Daten erlauben keine Entwarnung und zur Replik von Manthey et al. (2026): Wann sind seriöse Aussagen über Auswirkungen der Teillegalisierung von Cannabis möglich?

Fischer, Benedikt and Hall, Wayne (2026). Kommentare zu DG-Sucht et al. (2026): Evaluation des Konsumcannabisgesetzes: Vorläufige Daten erlauben keine Entwarnung und zur Replik von Manthey et al. (2026): Wann sind seriöse Aussagen über Auswirkungen der Teillegalisierung von Cannabis möglich?. Sucht, 72 (4), 233-234. doi: 10.1024/0939-5911/a000994

Kommentare zu DG-Sucht et al. (2026): Evaluation des Konsumcannabisgesetzes: Vorläufige Daten erlauben keine Entwarnung und zur Replik von Manthey et al. (2026): Wann sind seriöse Aussagen über Auswirkungen der Teillegalisierung von Cannabis möglich?

2026

Journal Article

The challenge of improving assessment and treatment for attention-deficit/hyperactivity disorder in Australia

Johnson, Benjamin, Parker, Stephen, Xu, Richard, Simmons, Rachel and Hall, Wayne (2026). The challenge of improving assessment and treatment for attention-deficit/hyperactivity disorder in Australia. Australian and New Zealand Journal of Psychiatry, 48674261465180. doi: 10.1177/00048674261465180

The challenge of improving assessment and treatment for attention-deficit/hyperactivity disorder in Australia

2026

Journal Article

Relationships between cannabis use and mental disorders: assessing the coherence of evidence from studies with different methodologies

Hall, Wayne, Yimer, Tesfa M., Thorne, Rachel Lees, Hoch, Eva, Burke, Chloe, Gridley, Ad, Hurd, Yasmin L., Wilson, Jack, Leung, Janni and Freeman, Tom P. (2026). Relationships between cannabis use and mental disorders: assessing the coherence of evidence from studies with different methodologies. The Lancet Psychiatry, 13 (7), 604-614. doi: 10.1016/S2215-0366(26)00086-6

Relationships between cannabis use and mental disorders: assessing the coherence of evidence from studies with different methodologies

2026

Journal Article

Complementary insights from wastewater surveillance and the toxicology findings of clinical presentations involving new psychoactive substances in Australia

Bade, Richard, Nadarajan, Dhayaalini, Harris, Keith, Harvey, Christine, Jiranantakan, Thanjira, Morgan, Hannah, Partridge, Emma, Schumann, Jennifer, Smith, Jennifer L, Weber, Courtney and Hall, Wayne (2026). Complementary insights from wastewater surveillance and the toxicology findings of clinical presentations involving new psychoactive substances in Australia. Journal of Analytical Toxicology, 50 (7) bkag071, 1-8. doi: 10.1093/jat/bkag071

Complementary insights from wastewater surveillance and the toxicology findings of clinical presentations involving new psychoactive substances in Australia

2026

Journal Article

How can we facilitate research on the risks and potential benefits of novel psychoactive substances?

Ramaekers, J. G., Bade, R. and Hall, W. (2026). How can we facilitate research on the risks and potential benefits of novel psychoactive substances?. eClinicalMedicine, 97 104030, 1-5. doi: 10.1016/j.eclinm.2026.104030

How can we facilitate research on the risks and potential benefits of novel psychoactive substances?

2026

Journal Article

International cannabis policies and their association with cannabis use, cannabis use disorder, and other psychiatric disorders

Freeman, Tom P., Thorne, Rachel Lees, Wadsworth, Elle, Carney, Tara, Castillo-Carniglia, Alvaro, Cerdá, Magdalena, Kalayasiri, Rasmon, Kilmer, Beau, Lorenzetti, Valentina, Manthey, Jakob, Myran, Daniel T., Rivera-Aguirre, Ariadne, Rychert, Marta, Wilson, Jack, Yimer, Tesfa and Hall, Wayne (2026). International cannabis policies and their association with cannabis use, cannabis use disorder, and other psychiatric disorders. The Lancet Psychiatry, 13 (7), 615-626. doi: 10.1016/S2215-0366(26)00087-8

International cannabis policies and their association with cannabis use, cannabis use disorder, and other psychiatric disorders

2026

Journal Article

Trends of fentanyl and oxycodone use in Australia (2018–2022) in national prescription and wastewater data sets

Ngo, Hieu K.T., Thai, Phong K., Connor, Jason P., Loveday, Bill, Verhagen, Rory, Bade, Richard, O’Brien, Jake W., Gerber, Cobus, Keller, Emma, Simpson, Bradley S., Culshaw, Peter, Hall, Wayne, Humphreys, Keith, Thomas, Kevin V., Mueller, Jochen F. and Tscharke, Ben (2026). Trends of fentanyl and oxycodone use in Australia (2018–2022) in national prescription and wastewater data sets. Environmental Science and Technology, 60 (25), 17615-17626. doi: 10.1021/acs.est.5c18126

Trends of fentanyl and oxycodone use in Australia (2018–2022) in national prescription and wastewater data sets

2026

Journal Article

A systematic review and meta-analysis of self-reported exposure to cannabis advertising and its association with cannabis use and intentions

McClure-Thomas, Caitlin, Yimer, Tesfa, Strong, Caroline, Sun, Tianze, Hall, Wayne D., Chan, Gary Chung Kai, Connor, Jason P. and Leung, Janni (2026). A systematic review and meta-analysis of self-reported exposure to cannabis advertising and its association with cannabis use and intentions. Addiction, 121 (6), 1343-1361. doi: 10.1111/add.70310

A systematic review and meta-analysis of self-reported exposure to cannabis advertising and its association with cannabis use and intentions

2026

Journal Article

Can Thailand replace a commercialised cannabis market for adult use with a medical prescription model?

Kalayasiri, Rasmon, Ratta‐apha, Woraphat, Wilson, Jack, Hall, Wayne and Freeman, Tom P. (2026). Can Thailand replace a commercialised cannabis market for adult use with a medical prescription model?. Addiction add.70499. doi: 10.1111/add.70499

Can Thailand replace a commercialised cannabis market for adult use with a medical prescription model?

2026

Journal Article

Self-reported reasons for medical and nonmedical cannabis use in Australia: a cross-sectional analysis of the International Cannabis Policy Study 2023

Dawson, Danielle, Stjepanovic, Daniel, Leung, Janni, Lim, Carmen, Hall, Wayne, Lorenzetti, Valentina, Chan, Gary and Hammond, David (2026). Self-reported reasons for medical and nonmedical cannabis use in Australia: a cross-sectional analysis of the International Cannabis Policy Study 2023. Drug and Alcohol Dependence, 283 113124, 1-8. doi: 10.1016/j.drugalcdep.2026.113124

Self-reported reasons for medical and nonmedical cannabis use in Australia: a cross-sectional analysis of the International Cannabis Policy Study 2023

2026

Journal Article

Cannabis Legalization Outcomes in Canada: Trading Off Increased Health Problem for Reduced Crime Burdens Is Not Good Enough

Fischer, Benedikt, Hall, Wayne, Jutras-Aswad, Didier, Le Foll, Bernard and Myran, Daniel T. (2026). Cannabis Legalization Outcomes in Canada: Trading Off Increased Health Problem for Reduced Crime Burdens Is Not Good Enough. The Canadian Journal of Psychiatry 07067437261454772, 7067437261454772-7067437261454772. doi: 10.1177/07067437261454772

Cannabis Legalization Outcomes in Canada: Trading Off Increased Health Problem for Reduced Crime Burdens Is Not Good Enough

2026

Journal Article

Patterns, reasons and characteristics of e‐cigarette use in Australia: findings from the 2022–2023 National Drug Strategy Household Survey

Lim, Carmen C. W., Sun, Tianze, Lai, Germaine, Hall, Wayne, Connor, Jason, Lee, Yan Yee and Cho, Ara (2026). Patterns, reasons and characteristics of e‐cigarette use in Australia: findings from the 2022–2023 National Drug Strategy Household Survey. Addiction, 121 (5) add.70281, 1100-1109. doi: 10.1111/add.70281

Patterns, reasons and characteristics of e‐cigarette use in Australia: findings from the 2022–2023 National Drug Strategy Household Survey

2026

Journal Article

The psychometric properties of validated tools to assess cannabis use disorder: A systematic review and meta‐analysis

Leung, Janni, Stjepanovic, Daniel, Fong, Stephanie, Dawson, Dani, Vu, Giang, Yimer, Tesfa, McClure‐Thomas, Caitlin, Hall, Wayne Denis and Chan, Gary Chung Kai (2026). The psychometric properties of validated tools to assess cannabis use disorder: A systematic review and meta‐analysis. Addiction add.70438. doi: 10.1111/add.70438

The psychometric properties of validated tools to assess cannabis use disorder: A systematic review and meta‐analysis