By Dr Krista Siefried

Conference Abstracts

Kypri S; Macdonald H; Broadbent E; Freestone J; Baird S; Clifford B; Siefried K; Ezard N; Gobeil J, 2025, 'High-Dose MDMA Pills, Heroin-Adulterated Stimulants and Nitazene Detections the Most Common Concerns; Reporting on Drug Alerts Issued in Australia for 2024', Sydney, Australia, presented at APSAD 2025 Conference, Sydney, Australia, 09 November 2025 - 12 November 2025, http://dx.doi.org/10.1111/dar.70014

Freestone J; Barratt M; Kypri S; Siefried K; Broadbent E; Macdonald H; Clifford B; Ezard N, 2025, 'Identifying Concerns and Collaborating for Rapid Response; Preliminary Findings From the Formative Evaluation of the Prompt Response Network', Sydney, Australia, presented at APSAD 2025 Conference, Sydney, Australia, 09 November 2025 - 12 November 2025, http://dx.doi.org/10.1111/dar.70014

Nagle J; Zhou C; Doumany J; Tait A; Warner D; Dessauer P; Siefried K; Ezard N, 2025, 'Learnings From the Implementation of a Consumer Advisory Group for a Nation-Wide Randomised Placebo-Controlled Clinical Trial Investigating a Pharmacotherapy for Methamphetamine Withdrawal', Sydney, Australia, presented at APSAD 2025 Conference, Sydney, Australia, 09 November 2025 - 12 November 2025, http://dx.doi.org/10.1111/dar.70014

Siefried K; Zhou W; Ezard N; Tremonti C, 2025, 'Managing Gamma-Hydroxybutyrate Withdrawal With Early Baclofen Loading: A Retrospective Case Series', Sydney, Australia, presented at APSAD 2025 Conference, Sydney, Australia, 09 November 2025 - 12 November 2025, http://dx.doi.org/10.1111/dar.70014

Acheson L; Siefried K; Clifford B; Steele M; Fletcher K; Ezard N, 2025, 'People Seeking Treatment for Methamphetamine Use Are Getting Older and Treatment Services Need to Adapt', Sydney, Australia, presented at APSAD 2025 Conference, Sydney, Australia, 09 November 2025 - 12 November 2025, http://dx.doi.org/10.1111/dar.70014

Mills L; Mammen K; Deacon RM; Black E; Montebello M; Bruno R; Dunlop A; Ezard N; Shakeshaft A; Farrell M; Holmes J; Reid D; Childs S; Siefried K; Lintzeris N, 2025, 'The Effect of Amphetamine-Type Stimulant Use at Start of Treatment on Substance Use and Treatment Retention During Treatment Among Clients Enrolled in an Opioid Agonist Program', Sydney, Australia, presented at APSAD 2025 Conference, Sydney, Australia, 09 November 2025 - 12 November 2025, http://dx.doi.org/10.1111/dar.70014

Acheson L; Gordon C; McKetin R; Brett J; Christmass M; Rodgers C; Lintzeris N; Dunlop A; Farrell M; Shoptaw S; Ezard N; Siefried K, 2024, 'OBJECTIVE AND SUBJECTIVE SLEEP DURING LISDEXAMFETAMINE TREATMENT OF ACUTE METHAMPHETAMINE WITHDRAWAL: NEW MEASUREMENT PARADIGM', in Drug and Alcohol Dependence, Elsevier, Vol. 260, pp. 110067, http://dx.doi.org/10.1016/j.drugalcdep.2023.110067

Moller C; Siefried K; Clifford B; Acheson L; Brett J; Dunlop A; Haber P; Christmass M; Lintzeris N; Morley K; Shoptaw S; Trivedi M; Ezard N, 2023, 'Oral naltrexone-bupropion combination pharmacotherapy for methamphetamine use disorder: Pilot study protocol', in Drug and Alcohol Review, Wiley, Adelaide, Australia, Vol. 42, presented at The Australasian Professional Society on Alcohol and other Drugs Annual Scientific Conference, Adelaide, Australia, 12 November 2023 - 15 November 2023, http://dx.doi.org/10.1111/dar.13749

Acheson L; McKetin R; Ezard N; Lintzeris N; Brett J; Rodgers C; Christmass M; Gill A; Farrell M; Dunlop A; Shoptaw S; Siefried K, 2023, 'Participant experiences in a pilot study for methamphetamine withdrawal treatment: Implications for retention', in Drug and Alcohol Review, Wiley, Adelaide, Australia, Vol. 42, presented at The Australasian Professional Society on Alcohol and other Drugs Annual Scientific Conference, Adelaide, Australia, 12 November 2023 - 15 November 2023, http://dx.doi.org/10.1111/dar.13749

Knock E; Ezard N; Day R; Siefried K; Liknaitzky P; Ross M; Albert S; Brett J, 2023, 'Psilocybin-assisted psychotherapy for methamphetamine use disorder: Recruitment to a novel safety and feasibility trial', in Drug and Alcohol Review, Wiley, Adelaide, Australia, Vol. 42, presented at The Australasian Professional Society on Alcohol and other Drugs Annual Scientific Conference, Adelaide, Australia, 12 November 2023 - 15 November 2023, http://dx.doi.org/10.1111/dar.13749

Freestone J; Ezard N; Brett J; Roberts DM; Murray J; Prestage G; Hammoud M; Siefried KJ, 2022, '"Sometimes I have a duty of care not to call 000": Reported practices, attitudes and factors influencing consumer responses to GHB overdose', in DRUG AND ALCOHOL REVIEW, WILEY, Vol. 41, pp. S64 - S64, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000862018700111&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Hill PL; Siefried KJ; Tzanetis S; Peacock A; Lenton S; Ezard N, 2022, 'An Australian national Prompt Response Network for emerging drugs', in DRUG AND ALCOHOL REVIEW, WILEY, Vol. 41, pp. S73 - S73, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000862018700127&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Acheson LS; Gordon C; Ezard N; Lintzeris N; Dunlop AJ; Brett J; Rodgers C; Gill A; Christmass M; McKetin R; Farrell M; Shoptaw S; Siefried KJ, 2022, 'An exploratory analysis of actigraphy and sleep diaries in a methamphetamine withdrawal clinical trial', in DRUG AND ALCOHOL REVIEW, WILEY, Vol. 41, pp. S23 - S24, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000862018700042&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Mills L; Mammen K; Deacon RM; Black E; Montebello M; Bruno R; Dunlop AJ; Ezard N; Shakeshaft A; Farrell M; Holmes J; Reid D; Childs S; Siefried KJ; Lintzeris N, 2022, 'Outcomes for clients in opioid treatment programs who use amphetamine type substances: Results from a retrospective analysis of routinely-collected clinical data', in DRUG AND ALCOHOL REVIEW, WILEY, Vol. 41, pp. S96 - S97, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000862018700167&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Bascombe F; Siefried KJ; Ezard N, 2022, 'Strengthening first-line support for Australians who use drugs, their friends and families: A training needs analysis for alcohol and other drug helplines for calls relating to methamphetamine and emerging drugs of concern', in DRUG AND ALCOHOL REVIEW, WILEY, Vol. 41, pp. S27 - S28, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000862018700049&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Clifford B; Shine P; Lo N; Stockwell T; Haber PS; Baldry E; Day CA; Dobbins T; Peacock A; Pauly B; Lintzeris N; Dolan K; Macklin B; Siefried KJ; Brett J; Dunlop AJ; Ezard N, 2022, 'The AusMAP study: A protocol for a randomised, controlled feasibility study of a managed alcohol program in Australia', in DRUG AND ALCOHOL REVIEW, WILEY, Vol. 41, pp. S44 - S45, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000862018700078&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Williams BH; Acheson LS; Farrell M; McKetin R; Ezard N; Siefried KJ; Farrell M, 2022, 'PHARMACOLOGICAL TREATMENT FOR METHAMPHETAMINE WITHDRAWAL: A SYSTEMATIC REVIEW AND META-ANALYSIS OF RANDOMISED CONTROLLED TRIALS', in AUSTRALIAN AND NEW ZEALAND JOURNAL OF PSYCHIATRY, SAGE PUBLICATIONS LTD, Vol. 56, pp. 208 - 209

Knock E; Ezard N; Day R; Siefried KJ; Liknaitzky P; Ross M; Albert S; Brett J, 2022, 'A study protocol for the PsiMA trial: Psilocybin assisted psychotherapy for methamphetamine use disorder', in DRUG AND ALCOHOL REVIEW, WILEY, Vol. 41, pp. S82 - S82

Siefried KJ; Nguyen QA; Ezard N; Christmass M; Ali R, 2019, 'A rapid clinical research priority setting study for substance use disorder due to methamphetamine and emerging drugs of concern in Australia', in Drug and Alcohol Review, Wiley, Hobart, Australia, Vol. 38, presented at Australasian Professional Society on Alcohol and other Drugs (APSAD) Scientific Conference, Hobart, Australia, 10 November 2019 - 13 November 2019, http://dx.doi.org/10.1111/dar.12991

Sandra S; Demerikol A; Branezac M; Ezard N; Siefried KJ; Acheson LS; Bascombe F; Tremonti C; Haber P; Lintzeris N, 2019, 'Are we detoxing the right people, in the right setting and in the right way? A rapid review of the literature on withdrawal management', in Drug and Alcohol Review, Wiley, Hobart, Australia, Vol. 38, presented at Australasian Professional Society on Alcohol and other Drugs (APSAD) Scientific Conference, Hobart, Australia, 10 November 2019 - 13 November 2019, http://dx.doi.org/10.1111/dar.12991

Black E; Deacon RM; Mills L; Dunlop A; Ezard N; Bruno R; Shakeshaft A; Farrell M; Holmes J; Cretikos MA; Montebello M; Reid D; Childs S; Siefried KJ; Mammen K; Lintzeris N, 2019, 'Characteristics and treatment outcomes of the drug treatment population in New South Wales: Focus on amphetamine type stimulants', in Drug and Alcohol Review, Wiley, Hobart, Australia, Vol. 38, presented at Australasian Professional Society on Alcohol and other Drugs (APSAD) Scientific Conference, Hobart, Australia, 10 November 2019 - 13 November 2019, http://dx.doi.org/10.1111/dar.12991

Acheson LS; Murray E; Clifford B; Siefried KJ; Matthews GV; Ezard N, 2019, 'Optimising care for people who inject drugs: A retrospective medical record review of staphylococcus aureus bactaraemia treatment', in Drug and Alcohol Review, Wiley, Hobart, Australia, Vol. 38, presented at Australasian Professional Society on Alcohol and other Drugs (APSAD) Scientific Conference, Hobart, Australia, 10 November 2019 - 13 November 2019, http://dx.doi.org/10.1111/dar.12991

Nguyen QA; Middleton P; Herman D; Li K; Grundy E; Li E; Siefried KJ; Malone V; Kay-Lambkin F; Ezard N, 2019, 'What's in an app? Incorporating an automated consent procedure to recruit those who use methamphetamine to a harm reduction and early intervention smartphone-based application clinical trial', in Drug and Alcohol Review, Wiley, Hobart, Australia, Vol. 38, presented at Australasian Professional Society on Alcohol and other Drugs (APSAD) Scientific Conference, Hobart, Australia, 10 November 2019 - 13 November 2019, http://dx.doi.org/10.1111/dar.12991

Black E; Deacon RM; Mills L; Dunlop AJ; Ezard N; Bruno R; Shakeshaft A; Farrell M; Holmes J; Cretikos MA; Montebello M; Reid D; Childs S; Siefried KJ; Mammen K; Lintzeris N, 2019, 'CHARACTERISTICS AND TREATMENT OUTCOMES OF THE DRUG TREATMENT POPULATION IN NEW SOUTH WALES: FOCUS ON AMPHETAMINE TYPE STIMULANTS', in DRUG AND ALCOHOL REVIEW, WILEY, Vol. 38, pp. S27 - S28, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000494890100070&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Acheson LS; Murray E; Clifford B; Siefried KJ; Matthews GV; Ezard N, 2019, 'OPTIMISING CARE FOR PEOPLE WHO INJECT DRUGS: A RETROSPECTIVE MEDICAL RECORD REVIEW OF STAPHYLOCOCCUS AUREUS BACTERAEMIA TREATMENT', in DRUG AND ALCOHOL REVIEW, WILEY, Vol. 38, pp. S22 - S23, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000494890100057&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Siefried KJ; Mao L; Kerr S; Gates TM; Maynard A; Cysique LA; McAllister J; de Wit J; Carr A, 2016, 'Concomitant medication use in ART-experienced Australian adults: data from the PAART Study', in ANTIVIRAL THERAPY, INT MEDICAL PRESS LTD, NY, New York, Vol. 21, pp. A50 - A50, presented at 18th International Workshop on Co-Morbidities and Adverse Drug Reactions in HIV, NY, New York, 12 September 2016 - 13 September 2016, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000389747500044&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Reports

Zhou C; Kypri S; Howes M; Jiamsakul A; Peacock A; Sutherland R; Siefried K; Ezard N; Freestone J, 2026, Acceptability and Support for a Community-led Drug Reporting System in Australia, http://dx.doi.org/10.26190/unsworks/32651

Zhou C; Kypri S; Howes M; Jiamsakul A; Peacock A; Sutherland A; Siefried K; Ezard N; Freestone J, 2026, Acceptability and Support for a Community-led Drug Reporting System in Australia

Watson L; Kypri S; McLeod M; Ezard N; Siefried K; Freestone J, 2026, Nitazene and benzodiazepine test strips: current evidence, utility, and limitations, http://dx.doi.org/10.26190/unsworks/32371

Kypri S; Watson L; Siefried K; Ezard N; Freestone J, 2026, Prompt Response Network, Drug Alert Report 2025, http://dx.doi.org/10.26190/unsworks/32353

Kypri S; Watson L; Siefried K; Freestone J; Ezard N, 2026, Prompt Response Network, Drug Alert Report Q4, 2025, UNSW, Sydney, http://dx.doi.org/10.26190/unsworks/32230

Kypri S; Siefried KJ; Clifford B; Ezard N; Freestone J, 2025, Prompt Response Network, Drug Alert Report Q3, 2025​, http://dx.doi.org/10.26190/unsworks/31734

Kypri S; Macdonald H; Siefried K; Broadbent E; Clifford B; Freestone J; Ezard N, 2025, Prompt Response Network, Drug Alert Report Q2, 2025​, http://dx.doi.org/10.26190/unsworks/31407

Kypri S; Macdonald H; Siefried KJ; Broadbent E; Baird S; Clifford B; Freestone J; Ezard N, 2025, Prompt Response Network, Drug Alert Report 2024, http://dx.doi.org/10.26190/unsworks/31298

Kypri S; Macdonald H; Broadbent E; Freestone J; Baird S; Clifford B; Siefried K; Ezard N, 2025, Prompt Response Network, Drug Alert Report Q1 2025, http://dx.doi.org/10.26190/unsworks/31225

Hallen J; Siefried K; Ali R; Ezard N, 2024, NCCRED Clinical Research Funding Program Report 2018 - 2023, http://dx.doi.org/10.26190/unsworks/30272

Lintzeris N; Sunjic S; Demirkol A; Branezac M; Ezard N; Siefried K; Acheson L; Bascombe F; Tremonti C; Haber P, 2019, Management of withdrawal from alcohol and other drugs, The Sax Institute, http://dx.doi.org/10.57022/mjjp9930, https://doi.org/10.57022/mjjp9930

Lintzeris N; Sunjic S; Demirkol A; Branezac M; Ezard N; Siefried K; Acheson LS; Bascombe F; Tremonti C; Haber P, 2019, Management of withdrawal from alcohol and other drugs: an evidence check rapid review brokered by the Sax Institute for the NSW Ministry of Health, Sax Institute, http://dx.doi.org/10.57022/mjjp9930.

Theses / Dissertations

Siefried KJ, 2018, Antiretroviral therapy and treatment cascade outcomes in a cohort of adults living with HIV in Australia

Media

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 M; Olsen N; Baker A; Hall M; Arunogiri S; Lintzeris N; LiMA Investigator Group , 2026, VAN (Video abstract by NCCRED) - Lisdexamfetamine for methamphetamine dependence: findings from a randomised controlled trial, http://dx.doi.org/10.26190/unsworks/32631

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, 2026, VAN (Video abstract by NCCRED) - S-Check: A trial of a smartphone app on help-seeking and motivation to change methamphetamine use, http://dx.doi.org/10.26190/unsworks/32632

Freestone J; Siefried K, 2025, More Australians are overdosing on GHB. But there are ways to reduce your risk, The Conversation, https://theconversation.com/more-australians-are-overdosing-on-ghb-but-there-are-ways-to-reduce-your-risk-253128

Clifford B; Van Gordon K; Magee F; Malone V; Siefried K; Graham D; Ezard N, 2024, VAN (Video abstract by NCCRED) - Exploring barriers to treatment-seeking with women who use methamphetamine, http://dx.doi.org/10.26190/unsworks/30437

Acheson L; Ezard N; Lintzeris N; Dunlop A; Brett J; Rodgers C; Gill A; Christmass M; McKetin R; Farrell M; Shoptaw S; Siefried K, 2024, VAN (Video abstract by NCCRED) - Lisdexamphetamine for the treatment of methamphetamine withdrawal: Safety and feasibility  - the OLAM study, http://dx.doi.org/10.26190/unsworks/30443

Black E; Mammen K; Deacon RM; Ezard N; Mills L; Dunlop A; Montebello M; Reid D; Childs S; Bruno R; Shakeshaft A; Siefried K; Farrell M; Holmes J; Lintzeris N, 2023, VAN (Video abstract by NCCRED) - The health & social characteristics of people who use methamphetamine in New South Wales, http://dx.doi.org/10.26190/unsworks/30637

Bascombe F; Siefried K; Clifford B; Child S; Loos R; Sgouras H; Stevens L; Wilson H; Ezard N, 2023, VAN (Video abstract by NCCRED) - Strengthening first line telephone support for people who use Methamphetamine, http://dx.doi.org/10.26190/unsworks/30436

Acheson L; Williams B; Farrell M; McKetin R; Ezard N; Siefried K, 2022, VAN (Video Abstracts by NCCRED) - Pharmacotherapies for Methamphetamine Withdrawal, http://dx.doi.org/10.26190/unsworks/30423

Freestone J; Prestage G; Bourne A; Ezard N; Race K; Nedanoski A; Murray J; Siefried K, 2022, VAN (Video Abstracts by NCCRED) - The GHB Cultures, Practices and Experiences study, http://dx.doi.org/10.26190/unsworks/30424

Preprints

Clifford B; Van Gordon K; Magee F; Malone V; Siefried K; Graham D; Ezard N, “There’s a big tag on my head”: exploring barriers to treatment seeking with women who use methamphetamine in Sydney, Australia, http://dx.doi.org/10.1101/2022.08.01.22278295

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, 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 (Preprint), http://dx.doi.org/10.2196/preprints.55663

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