By Professor Nadine Ezard

Journal articles

Ezard N; Siefried KJ; Clifford B, 2025, 'Commentary on Young et al.: Clinical guidance is required for stimulant co-prescription with opioid agonist therapy.', Addiction, http://dx.doi.org/10.1111/add.70061

Ritter A; Bell J; Strang J; Ezard N; Rodgers C; Belackova V; Jauncey M; Siefried KJ; Roberts DM; van den Brink W; Lintzeris N; Dunlop A; Oviedo-Joekes E; Treloar C, 2025, 'Bridging the evidence and the politics: Implementation trial of supervised injectable opioid treatment (SIOT) in Australia', International Journal of Drug Policy, 138, http://dx.doi.org/10.1016/j.drugpo.2025.104749

Clifford B; Peacock A; Siefried KJ; Gobeil J; Smith JL; Ezard N, 2025, 'Responding to reports of nitazene toxicity in Australia', Medical Journal of Australia, 222, pp. 216 - 219, http://dx.doi.org/10.5694/mja2.52605

Freestone J; Xiao BJ; Siefried KJ; Bourne A; Ezard N; Maher L; Stirling R; Degenhardt L; Varma R; Prestage G; Hammoud M, 2025, 'Exploring experiences of talk therapies among gay and bisexual men seeking to reduce or abstain from using crystal methamphetamine in the context of chemsex', Drug and Alcohol Review, 44, pp. 711 - 722, http://dx.doi.org/10.1111/dar.13999

Fletcher K; Ezard N; Siefried KJ; MacDonald H; Acheson L; Bedi G; Guerin A; Knock E; Millard M; May R; Brett J; Doumany J; Morgan C; Clifford B, 2025, 'Protocol of an open-label safety and feasibility pilot study of ketamine-assisted psychotherapy for methamphetamine use disorder (the KAPPA trial)', BMJ open, 15, pp. e092504, http://dx.doi.org/10.1136/bmjopen-2024-092504

Siefried KJ; Acheson L; Clifford B; Moller C; Brett J; Christmass M; Dunlop AJ; Haber PS; Jutras-Aswad D; Lintzeris N; Morley K; Shoptaw S; Trivedi MH; Ezard N, 2025, 'Trial protocol of an open-label pilot study of oral naltrexone-bupropion combination pharmacotherapy for the treatment of methamphetamine use disorder (the NABU trial)', BMJ open, 15, pp. e092032, http://dx.doi.org/10.1136/bmjopen-2024-092032

Reilly R; McKetin R; Barzi F; Degan T; Ezard N; Conigrave K; Butt J; Roe Y; Wand H; Quinn B; Longbottom W; Treloar C; Dunlop A; Ward J, 2025, 'Web-Based Application for Reducing Methamphetamine Use Among Aboriginal and Torres Strait Islander People: Randomized Waitlist Controlled Trial', Journal of Medical Internet Research, 27, http://dx.doi.org/10.2196/58341

Fatovich DM; Dessauer P; Ezard N, 2024, '‘You mean you're not doing it already?’ A national sentinel toxico-surveillance system for detecting illicit, emerging and novel psychoactive drugs in presentations to emergency departments', EMA - Emergency Medicine Australasia, 36, pp. 990 - 992, http://dx.doi.org/10.1111/1742-6723.14478

Heijstee N; Black E; Black E; Demirkol A; Mammen K; Mills L; Deacon R; Ezard N; Montebello M; Reid D; Bruno R; Shakeshaft A; Siefried KJ; Farrell M; Lintzeris N, 2024, 'Sociodemographic and Health Factors of the Alcohol Treatment-seeking Population in New South Wales, Australia', Journal of Addiction Medicine, 18, pp. 619 - 627, http://dx.doi.org/10.1097/ADM.0000000000001311

Rodgers C; Siefried KJ; Ritter A; Belackova V; Treloar C; Jauncey M; Ezard N; Roberts D; Steele M; van den Brink W; Strang J; Oviedo-Joekes E; Lintzeris N; Dunlop AJ; Bell J, 2024, 'Implementation of time-limited parenteral hydromorphone in people with treatment-resistant injecting opioid use disorder: a protocol for a single-site, uncontrolled, open-label study to assess feasibility, safety and cost', BMJ Open, 14, pp. e082553, http://dx.doi.org/10.1136/bmjopen-2023-082553

Harris O; Siefried KJ; Chiew A; Jamshidi N; Chung DT; Moore N; Nic Ionmhain U; Roberts DM; Ezard N; Brett J, 2024, 'Trends in reported GHB-related presentations to Sydney emergency departments between 2012 and 2021', EMA - Emergency Medicine Australasia, 36, pp. 604 - 608, http://dx.doi.org/10.1111/1742-6723.14402

Smith JL; Greene S; McCutcheon D; Weber C; Kotkis E; Soderstrom J; Douglas B; Lenton S; Grigg J; Dessauer P; Ezard N; Fatovich DM, 2024, 'A multicentre case series of analytically confirmed gamma-hydroxybutyrate intoxications in Western Australian emergency departments: Pre-hospital circumstances, co-detections and clinical outcomes', Drug and Alcohol Review, 43, pp. 984 - 996, http://dx.doi.org/10.1111/dar.13830

Acheson LS; Clay S; McKetin R; Lintzeris N; Dunlop A; Brett J; Christmass M; Rodgers C; Shoptaw S; Farrell M; Ezard N; Siefried KJ, 2024, 'Participant experiences in a pilot study for methamphetamine withdrawal treatment: Implications for retention', International Journal of Drug Policy, 126, http://dx.doi.org/10.1016/j.drugpo.2024.104383

Acheson LS; Gordon C; Mcketin R; Brett J; Christmass M; Rodgers C; Lintzeris N; Dunlop A; Farrell M; Shoptaw S; Ezard N; Siefried KJ, 2024, 'Measuring Objective and Subjective Sleep during Lisdexamfetamine Treatment of Acute Methamphetamine Withdrawal: A Feasibility Study', European Addiction Research, 30, pp. 121 - 125, http://dx.doi.org/10.1159/000536328

Sivak L; Reilly R; Crumpen S; Treloar C; McKetin R; Butt J; Roe Y; Ezard N; Quinn B; Nagle J; Longbottom W; Warrior C; Ward J, 2024, 'Reducing Methamphetamine Use in Aboriginal and Torres Strait Islander Communities with the We Can Do This Web-App: Qualitative Evaluation of Acceptability and Feasibility (Preprint)', JMIR Formative Research, http://dx.doi.org/10.2196/58369

Greene MC; Busse A; Ventevogel P; Kane J; Ezard N, 2024, 'Moving from feasible to essential: Progress and future directions for promoting the implementation of substance use services for forcibly displaced populations in humanitarian settings', Addiction, 119, pp. 408 - 410, http://dx.doi.org/10.1111/add.16386

Cheng Q; Valerio H; Cunningham EB; Shih STF; Silk D; Conway A; Treloar C; Murray C; Henderson C; Amin J; Read P; Dore GJ; Grebely J; Bath N; Milat A; Dunlop A; Holden J; Leadbeatter K; Day E; Habraken N; Dawson O; Degenhardt L; Scott C; Tillakeratne S; Marks P; Jayasinghe I; Martinez M; Reid H; Gleeson V; Van Dyk J; Mercade GE; Marshall AD; Obeid S; Wheeler A; Hooshyar SH; Catlett B; Verich A; Erratt A; Wheeler A; Ezard N; Reid D; Gorton C; Hayllar J; Lam T; Datta P; Wade A; Spruce S; Cock V; Cornwell M; Zohrab K; Christmass M; Connelly C; Cooper A; Montebello M; Cherry R; Dyer J; Arawal S; Press E; Horasak N; Lewis R; Carthew A; Morris D; Donohue K; Griffiths K; Lana JD; Shin S; Graf C; Hampson A; Qian S; Brown D; Lautier A; Curran C; Burns C; Raidu R; Stolzenhein K; Brabender W; Somes K; Abram N; Turne R; Larter S; Goodberg F; Luksza J; Hall M; Hazelwood S; Ismay C; McClurg B; Mincham C; Barlow K; Hoskins A; Salisbury K; Markham J; Talmet J; Dunn S; Mitchell A; McKinnon A; Smyth F; Snell L; Laing E; Clark M; Dorigo J, 2024, 'Health-Related Quality of Life of People Who Inject Drugs: The Enhancing Treatment of Hepatitis C in Opioid Substitution Settings Engage Study', Value in Health, 27, pp. 216 - 225, http://dx.doi.org/10.1016/j.jval.2023.10.013

Sharafi H; Bakouni H; McAnulty C; Drouin S; Coronado-Montoya S; Bahremand A; Bach P; Ezard N; Le Foll B; Schütz CG; Siefried KJ; Tardelli VS; Ziegler D; Jutras-Aswad D, 2024, 'Prescription psychostimulants for the treatment of amphetamine-type stimulant use disorder: A systematic review and meta-analysis of randomized placebo-controlled trials', Addiction, 119, pp. 211 - 224, http://dx.doi.org/10.1111/add.16347

Siefried KJ; Bascombe F; Clifford B; Liu Z; Middleton P; Kay-Lambkin F; Freestone J; Herman D; Millard M; Steele M; Acheson L; Moller C; Bath N; Ezard N, 2024, 'Effect of a Smartphone App (S-Check) on Actual and Intended Help-Seeking and Motivation to Change Methamphetamine Use Among Adult Consumers of Methamphetamine in Australia: Randomized Waitlist-Controlled Trial', JMIR mHealth and uHealth, 12, http://dx.doi.org/10.2196/55663

Ezard N; Clifford B; Siefried KJ; Ali R; Dunlop A; McKetin R; Bruno R; Carr A; Ward J; Farrell M; Graham R; Haber P; Lubman D; Donoghoe MW; Olsen N; Baker A; Hall M; Arunogiri S; Lintzeris N; Gill A; Rodgers C; Montebello M; Liaw W; Liu Z, 2024, 'Lisdexamfetamine in the treatment of methamphetamine dependence: A randomised, placebo-controlled trial', Addiction, http://dx.doi.org/10.1111/add.16730

Clifford B; Van Gordon K; Magee F; Malone V; Siefried KJ; Graham D; Ezard N, 2023, '“There’s a big tag on my head”: exploring barriers to treatment seeking with women who use methamphetamine in Sydney, Australia', BMC Health Services Research, 23, pp. 162, http://dx.doi.org/10.1186/s12913-023-09125-z

Bakouni H; Sharafi H; Bahremand A; Drouin S; Ziegler D; Bach P; Le Foll B; Schütz CG; Tardelli V; Ezard N; Siefried K; Jutras-Aswad D, 2023, 'Bupropion for treatment of amphetamine-type stimulant use disorder: A systematic review and meta-analysis of placebo-controlled randomized clinical trials', Drug and Alcohol Dependence, 253, http://dx.doi.org/10.1016/j.drugalcdep.2023.111018

Freestone J; Ezard N; Bourne A; Brett J; Roberts DM; Hammoud M; Nedanoski A; Prestage G; Siefried KJ, 2023, 'Understandings, attitudes, practices and responses to GHB overdose among GHB consumers', Harm Reduction Journal, 20, pp. 121, http://dx.doi.org/10.1186/s12954-023-00857-z

Bascombe F; Siefried KJ; Clifford B; Child S; Loos R; Sgouras H; Stevens L; Wilson H; Ezard N, 2023, 'Methamphetamine and emerging drugs of concern: A training needs analysis of Australian alcohol and other drug helplines', Drug and Alcohol Review, 42, pp. 1744 - 1753, http://dx.doi.org/10.1111/dar.13719

Sivak L; Reilly R; Lockton J; Treloar C; Roe Y; McKetin R; Butt J; Ezard N; Winkenweder H; Ward J, 2023, 'Psychosocial stress and methamphetamine use: A mixed-methods study of intersectional stigma and Aboriginal and Torres Strait Islander methamphetamine use', International Journal of Drug Policy, 121, http://dx.doi.org/10.1016/j.drugpo.2023.104189

Black E; Bruno R; Mammen K; Mills L; Siefried KJ; Deacon RM; Shakeshaft A; Dunlop AJ; Ezard N; Montebello M; Childs S; Reid D; Holmes J; Lintzeris N, 2023, 'Substance use, socio-demographic characteristics, and self-rated health of people seeking alcohol and other drug treatment in New South Wales: baseline findings from a cohort study', Medical Journal of Australia, 219, pp. 218 - 226, http://dx.doi.org/10.5694/mja2.52039

Wand H; Reilly R; McKetin R; Quinn B; Roe Y; Conigrave K; Ezard N; Butt J; Treloar C; Sivak L; Shackleford I; Dunlop A; Ward J, 2023, 'Investigating associations between methamphetamine use, mental health and risky sexual behaviours amongst Aboriginal and Torres Strait Islander peoples', Mental Health and Prevention, 30, http://dx.doi.org/10.1016/j.mhp.2023.200267

Elkholy H; Tay Wee Teck J; Arunogiri S; Asaad MR; Baessler F; Bhad R; Borghi EN; Busse A; Ekhtiari H; Dave S; Ferri M; Greene C; Koob GF; Kouimtsidis C; Krupchanka D; Nikendei C; Pipyrou S; Poznyak V; Volkow ND; White AM; Zonoozi AK; Ezard N; Potenza MN; Baldacchino AM, 2023, 'Substance Use Disorders Among Forcibly Displaced People: a Narrative Review', Current Addiction Reports, 10, pp. 341 - 352, http://dx.doi.org/10.1007/s40429-023-00467-6

Black E; Mammen K; Deacon RM; Ezard N; Mills L; Dunlop AJ; Montebello M; Reid D; Childs S; Bruno R; Shakeshaft A; Siefried KJ; Farrell M; Holmes J; Lintzeris N, 2023, 'Health and social characteristics of clients reporting amphetamine type substance use at entry to public alcohol and other drug services in New South Wales, Australia, 2016–2019', Drug and Alcohol Review, 42, pp. 389 - 400, http://dx.doi.org/10.1111/dar.13588

Siefried KJ; Freeman G; Roberts DM; Lindsey R; Rodgers C; Ezard N; Brett J, 2023, 'Inpatient GHB withdrawal management in an inner-city hospital in Sydney, Australia: a retrospective medical record review', Psychopharmacology, 240, pp. 127 - 135, http://dx.doi.org/10.1007/s00213-022-06283-6

Freeman G; Siefried KJ; Roberts DM; Rodgers C; Nic Ionmhain U; Ramanathan J; Ezard N; Brett J, 2023, 'Phenobarbital to manage severe gamma-hydroxybutyrate withdrawal: A case series', Drug and Alcohol Review, 42, pp. 27 - 32, http://dx.doi.org/10.1111/dar.13556

Kane JC; Kamanga M; Skavenski S; Murray LK; Shawa M; Bwalya B; Metz K; Paul R; Mushabati N; Ventevogel P; Haddad S; Kilbane G; Sienkiewicz M; Chibemba V; Chiluba P; Mtongo N; Chibwe M; Figge CJ; Alto M; Mwanza D; Mupinde E; Kakumbi S; Tol WA; Vaughan K; Banda Z; Busse A; Ezard N; Zulu A; Loongo H; Greene MC, 2023, 'Testing a Screening, Brief Intervention, and Referral to Treatment Intervention Approach for Addressing Unhealthy Alcohol and Other Drug Use in Humanitarian Settings: Protocol of the Ukuundapwa Chapamo Randomised Controlled Trial', Intervention, 21, pp. 58 - 69, http://dx.doi.org/10.4103/intv.intv_21_22

Conigrave JH; Wilson S; Conigrave KM; Chikritzhs T; Hayman N; Dawson A; Ali R; Perry J; Fitts MS; Degenhardt L; Doyle M; Egert S; Slade T; Ezard N; Dzidowska M; Lee KSK, 2022, '‘The Drug Survey App’: a protocol for developing and validating an interactive population survey tool for drug use among Aboriginal and Torres Strait Islander Australians', Addiction Science and Clinical Practice, 17, http://dx.doi.org/10.1186/s13722-022-00298-2

Acheson LS; Ezard N; Lintzeris N; Dunlop A; Brett J; Rodgers C; Gill A; Christmass M; McKetin R; Farrell M; Shoptaw S; Siefried KJ, 2022, 'Lisdexamfetamine for the treatment of acute methamphetamine withdrawal: A pilot feasibility and safety trial', Drug and Alcohol Dependence, 241, pp. 109692, http://dx.doi.org/10.1016/j.drugalcdep.2022.109692

Miller P; Vakidis T; Taylor N; Baker T; Stella J; Egerton-Warburton D; Hyder S; Staiger P; Bowe SJ; Shepherd J; Zordan R; Walby A; Jones ML; Caldicott D; Barker D; Hall M; Doran CM; Ezard N; Preisz P; Havard A; Shakeshaft A; Akhlaghi H; Kloot K; Lowry N; Bumpstead S, 2022, 'Most common principal diagnoses assigned to Australian emergency department presentations involving alcohol use: a multi-centre study', Australian and New Zealand Journal of Public Health, 46, pp. 903 - 909, http://dx.doi.org/10.1111/1753-6405.13303

Acheson LS; Ezard N; Lintzeris N; Dunlop A; Brett J; Rodgers C; Gill A; Christmass M; McKetin R; Farrell M; Shoptaw S; Siefried KJ, 2022, 'Trial protocol of an open label pilot study of lisdexamfetamine for the treatment of acute methamphetamine withdrawal', PLoS ONE, 17, pp. e0275371, http://dx.doi.org/10.1371/journal.pone.0275371

Freestone J; Prestage G; Bourne A; Ezard N; Race K; Nedanoski A; Murray J; Siefried KJ, 2022, 'Controlling for pleasure and risk: The experiences of sexuality and gender diverse people who use GHB', International Journal of Drug Policy, 105, pp. 103747, http://dx.doi.org/10.1016/j.drugpo.2022.103747

Brener L; Caruana T; Broady T; Cama E; Ezard N; Madden A; Treloar C, 2022, 'Addressing injecting related risks among people who inject both opioids and stimulants: Findings from an Australian survey of people who inject drugs', Addictive Behaviors Reports, 15, pp. 100398, http://dx.doi.org/10.1016/j.abrep.2021.100398

Siefried KJ; Ezard N; Christmass M; Haber P; Ali R, 2022, 'A clinical research priority setting study for issues related to the use of methamphetamine and emerging drugs of concern in Australia', Drug and Alcohol Review, 41, pp. 309 - 319, http://dx.doi.org/10.1111/dar.13350

Smith JL; Soderstrom J; Dawson A; Alfred S; Greene S; Isoardi K; McCutcheon D; Oosthuizen F; Ezard N; Burcham J; Fatovich DM, 2022, 'The Emerging Drugs Network of Australia: A toxicosurveillance system of illicit and emerging drugs in the emergency department', EMA - Emergency Medicine Australasia, 34, pp. 58 - 64, http://dx.doi.org/10.1111/1742-6723.13839

Acheson LS; Williams BH; Farrell M; McKetin R; Ezard N; Siefried KJ, 2022, 'Pharmacological treatment for methamphetamine withdrawal: A systematic review and meta-analysis of randomised controlled trials', Drug and Alcohol Review, 42, http://dx.doi.org/10.1111/dar.13511

Greene MC; Haddad S; Busse A; Ezard N; Ventevogel P; Demis L; Inoue S; Gumm JC; Campello G; Tol WA; Kane JC, 2021, 'Priorities for addressing substance use disorder in humanitarian settings', Conflict and Health, 15, http://dx.doi.org/10.1186/s13031-021-00407-z

Acheson LS; Siefried KJ; Clifford B; Murray E; Steele M; Clague L; Malone V; Roberts DM; Ferguson LJ; Matthews GV; Ezard N, 2021, 'One-third of people who inject drugs are at risk of incomplete treatment for Staphylococcus aureus bacteraemia: a retrospective medical record review', International Journal of Infectious Diseases, 112, pp. 63 - 65, http://dx.doi.org/10.1016/j.ijid.2021.09.012

Peacock A; Gibbs D; Price O; Barratt MJ; Ezard N; Sutherland R; Hill PL; Grigg J; Lenton S; Page R; Salom C; Hughes C; Bruno R, 2021, 'Profile and correlates of colorimetric reagent kit use among people who use ecstasy/MDMA and other illegal stimulants in Australia', International Journal of Drug Policy, 97, http://dx.doi.org/10.1016/j.drugpo.2021.103334

Ezard N; Clifford B; Dunlop A; Bruno R; Carr A; Liu Z; Siefried KJ; Lintzeris N, 2021, 'Safety and tolerability of oral lisdexamfetamine in adults with methamphetamine dependence: A phase-2 dose-escalation study', BMJ Open, 11, pp. e044696, http://dx.doi.org/10.1136/bmjopen-2020-044696

Lewer D; Jones NR; Hickman M; Larney S; Ezard N; Nielsen S; Degenhardt L, 2020, 'Risk of discharge against medical advice among hospital inpatients with a history of opioid agonist therapy in New South Wales, Australia: A cohort study and nested crossover-cohort analysis', Drug and Alcohol Dependence, 217, http://dx.doi.org/10.1016/j.drugalcdep.2020.108343

Reilly R; Wand H; McKetin R; Quinn B; Ezard N; Dunlop A; Conigrave K; Treloar C; Roe Y; Gray D; Stephens J; Ward J, 2020, 'Survey methods and characteristics of a sample of Aboriginal and Torres Strait Islander and non-Indigenous people who have recently used methamphetamine: the NIMAC survey', Drug and Alcohol Review, 39, pp. 646 - 655, http://dx.doi.org/10.1111/dar.13085

Dunlop A; Lokuge B; Masters D; Sequeira M; Saul P; Dunlop G; Ryan J; Hall M; Ezard N; Haber P; Lintzeris N; Maher L, 2020, 'Challenges in maintaining treatment services for people who use drugs during the COVID-19 pandemic', Harm Reduction Journal, 17, pp. 26, http://dx.doi.org/10.1186/s12954-020-00370-7

Siefried KJ; Acheson LS; Lintzeris N; Ezard N, 2020, 'Pharmacological treatment of methamphetamine/amphetamine dependence: a systematic review', CNS Drugs, 34, pp. 337 - 365, http://dx.doi.org/10.1007/s40263-020-00711-x

Bajis S; Grebely J; Hajarizadeh B; Applegate T; Marshall AD; Ellen Harrod M; Byrne J; Bath N; Read P; Edwards M; Gorton C; Hayllar J; Cock V; Peterson S; Thomson C; Weltman M; Jefferies M; Wood W; Haber P; Ezard N; Martinello M; Maher L; Dore GJ; Peolim L; How-Chow D; Telenta J; Harvey P; Jones S; Dunlop A; Treloar C; Samuel Y; Poeder F; Crawford S; Baxter A; Keats J; Mowat Y; Silk D; Micallef M; Tamaddoni M; Marks P; Lamoury F; Jayasinghe I; Reid H; Cunningham EB; Bartlett S; Jacka B; Erratt A; Jauncey M; Collie P; Lam T; Gilliver R; Hazelwood S; Houlihan N; Burns C; Lewis R; Morris D; Donohue K; Carthew A; Horasak N; Cherry R; Shin S; Peterson D; Sellwood T; McKeown W; Pritchard-Jones J; Smyth F; Adey S; Clark K; Grebely J; Hajarizadeh B; Edwards M, 2020, 'Hepatitis C virus testing, liver disease assessment and treatment uptake among people who inject drugs pre- and post-universal access to direct-acting antiviral treatment in Australia: The LiveRLife study', Journal of Viral Hepatitis, 27, pp. 281 - 293, http://dx.doi.org/10.1111/jvh.13233

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