By Dr Thomas James Santo Jr

Journal articles

Jones N; Ghouse FN; Gibson A; Tran DT; Santo T; Bharat C; Farrell M; Degenhardt L, 2025, 'Data Resource Profile Update: The Opioid Agonist Treatment and Safety II (OATS II) Study, 2001–22, New South Wales, Australia', International Journal of Epidemiology, 54, http://dx.doi.org/10.1093/ije/dyaf037

Santo TJ; Chaillon A; Martin N; Hickman M; Jones N; Farrell M; Bharat C; Degenhardt L; Borquez A, 2025, 'Quantifying the impact of a large-scale opioid agonist treatment program on suicide prevention in New South Wales, Australia: A data-modeling study', Addiction, http://dx.doi.org/10.1111/add.70018

Santo T; Chaillon A; Martin N; Bharat C; Jones N; Farrell M; Hickman M; Borquez A; Degenhardt L, 2025, 'Quantifying the Impact of Opioid Agonist Treatment on Suicide Mortality in New South Wales, Australia: A Population-Level Analysis from 2001 to 2020', Drug and Alcohol Dependence, 267, pp. 112133 - 112133, http://dx.doi.org/10.1016/j.drugalcdep.2024.112133

Jones N; Santo T; Gibson A; Lappin J; Lintzeris N; Degenhardt L; Larney S; Gisev N, 2025, 'The Impact of Severe Mental Illness on Treatment Retention and All-Cause Mortality of Individuals in Opioid Agonist Treatment: A Retrospective Data Linkage Study', Drug and Alcohol Dependence, 267, pp. 112015 - 112015, http://dx.doi.org/10.1016/j.drugalcdep.2024.112015

Leung J; Lim C; Sun T; Vu G; McClure-Thomas C; Bao Y; Tran L; Santo T; Fausiah F; Farassania G; Chan GCK; Sebayang SK, 2024, 'Preventable Deaths Attributable to Second-Hand Smoke in Southeast Asia—Analysis of the Global Burden of Disease Study 2019', International Journal of Public Health, 69, http://dx.doi.org/10.3389/ijph.2024.1606446

Santo T; Gisev N; Campbell G; Colledge-Frisby S; Wilson J; Tran LT; Lynch M; Martino-Burke D; Taylor S; Degenhardt L, 2024, 'Prevalence of comorbid substance use disorders among people with opioid use disorder: A systematic review & meta-analysis.', Int J Drug Policy, 128, pp. 104434, http://dx.doi.org/10.1016/j.drugpo.2024.104434

Santo T, 2023, 'Errors in Data Reported in Meta-Analysis on Opioid Agonist Treatment and Mortality', JAMA Psychiatry, 80, pp. 971 - 972, http://dx.doi.org/10.1001/jamapsychiatry.2023.2342

, 2023, 'Errors in Results and Tables.', JAMA Psychiatry, 80, pp. 972, http://dx.doi.org/10.1001/jamapsychiatry.2023.2537

Colledge-Frisby S; Jones N; Degenhardt L; Hickman M; Padmanathan P; Santo T; Farrell M; Gisev N, 2023, 'Incidence of suicide and self-harm among people with opioid use disorder and the impact of opioid agonist treatment: A retrospective data linkage study', Drug and Alcohol Dependence, 246, http://dx.doi.org/10.1016/j.drugalcdep.2023.109851

Santo T; Gisev N; Campbell G; Nelson E; Degenhardt L, 2023, 'The effects of childhood trauma and mental disorders on treatment engagement, contact with the criminal justice system, and mortality among people with opioid dependence', Drug and Alcohol Dependence, 243, http://dx.doi.org/10.1016/j.drugalcdep.2022.109734

Santo T; Campbell G; Gisev N; Martino-Burke D; Wilson J; Colledge-Frisby S; Clark B; Tran LT; Degenhardt L, 2022, 'Prevalence of mental disorders among people with opioid use disorder: A systematic review and meta-analysis', Drug and Alcohol Dependence, 238, http://dx.doi.org/10.1016/j.drugalcdep.2022.109551

Leung J; Santo T; Colledge-Frisby S; Mekonen T; Thomson K; Degenhardt L; Connor JP; Hall W; Stjepanović D, 2022, 'Mood and Anxiety Symptoms in Persons Taking Prescription Opioids: A Systematic Review with Meta-Analyses of Longitudinal Studies', Pain Medicine United States, 23, pp. 1442 - 1456, http://dx.doi.org/10.1093/pm/pnac029

Zahra E; Chen R; Nielsen S; Tran AD; Santo T; Degenhardt L; Farrell M; Byrne J; Ali R; Larance B, 2022, 'Examining the cost and impact of dosing fees among clients in opioid agonist treatment: Results from a cross-sectional survey of Australian treatment clients', Drug and Alcohol Review, 41, pp. 841 - 850, http://dx.doi.org/10.1111/dar.13437

Tran AD; Chen R; Nielsen S; Zahra E; Degenhardt L; Santo T; Farrell M; Larance B, 2022, 'Economic analysis of out-of-pocket costs among people in opioid agonist treatment: A cross-sectional survey in three Australian jurisdictions', International Journal of Drug Policy, 99, http://dx.doi.org/10.1016/j.drugpo.2021.103472

Santo T; Campbell G; Gisev N; Degenhardt L, 2022, 'Exposure to childhood trauma increases risk of opioid use disorder among people prescribed opioids for chronic non-cancer pain', Drug and Alcohol Dependence, 230, http://dx.doi.org/10.1016/j.drugalcdep.2021.109199

Santo T; Clark B; Hickman M, 2022, 'Association of opioid agonist treatment with all-cause mortality and specific causes of death among people with opioid dependence: a systematic review and meta-analysis (vol 78, pg 979, 2021)', JAMA PSYCHIATRY, 79, pp. 516 - 516, http://dx.doi.org/10.1001/jamapsychiatry.2022.0357

Santo T; Clark B; Hickman M; Grebely J; Campbell G; Sordo L; Chen A; Tran LT; Bharat C; Padmanathan P; Cousins G; Dupouy J; Kelty E; Muga R; Nosyk B; Min J; Pavarin R; Farrell M; Degenhardt L, 2021, 'Association of Opioid Agonist Treatment with All-Cause Mortality and Specific Causes of Death among People with Opioid Dependence: A Systematic Review and Meta-analysis', JAMA Psychiatry, 78, pp. 979 - 993, http://dx.doi.org/10.1001/jamapsychiatry.2021.0976

Grebely J; Tran L; Degenhardt L; Dowell-Day A; Santo T; Larney S; Hickman M; Vickerman P; French C; Butler K; Gibbs D; Valerio H; Read P; Dore GJ; Hajarizadeh B, 2021, 'Association between Opioid Agonist Therapy and Testing, Treatment Uptake, and Treatment Outcomes for Hepatitis C Infection among People Who Inject Drugs: A Systematic Review and Meta-analysis', Clinical Infectious Diseases, 73, pp. E107 - E118, http://dx.doi.org/10.1093/cid/ciaa612

Ferraro CF; Stewart DE; Grebely J; Tran LT; Zhou S; Puca C; Hajarizadeh B; Larney S; Santo T; Higgins JPT; Vickerman P; Degenhardt L; Hickman M; French CE, 2021, 'Association between opioid agonist therapy use and HIV testing uptake among people who have recently injected drugs: a systematic review and meta-analysis', Addiction, 116, pp. 1664 - 1676, http://dx.doi.org/10.1111/add.15316

Peacock A; Tran LT; Larney S; Stockings E; Santo T; Jones H; Santomauro D; Degenhardt L, 2021, 'All-cause and cause-specific mortality among people with regular or problematic cocaine use: a systematic review and meta-analysis', Addiction, 116, pp. 725 - 742, http://dx.doi.org/10.1111/add.15239

Santo T; Campbell G; Gisev N; Tran LT; Colledge S; Di Tanna GL; Degenhardt L, 2021, 'Prevalence of childhood maltreatment among people with opioid use disorder: A systematic review and meta-analysis', Drug and Alcohol Dependence, 219, http://dx.doi.org/10.1016/j.drugalcdep.2020.108459

Santo T; Clark B; Hickman M, 2021, 'Association of Opioid Agonist Treatment With All-Cause Mortality and Specific Causes of Death Among People With Opioid Dependence: A Systematic Review and Meta-analysis (Jun, 10.1001/jamapsychiatry.2021.0976, 2021)', JAMA PSYCHIATRY, 78, pp. 1044 - 1044, http://dx.doi.org/10.1001/jamapsychiatry.2021.1754

Larance B; Degenhardt L; Grebely J; Nielsen S; Bruno R; Dietze P; Lancaster K; Larney S; Santo T; Shanahan M; Memedovic S; Ali R; Farrell M, 2020, 'Perceptions of extended-release buprenorphine injections for opioid use disorder among people who regularly use opioids in Australia', Addiction, 115, pp. 1295 - 1305, http://dx.doi.org/10.1111/add.14941

Larney S; Tran LT; Leung J; Santo T; Santomauro D; Hickman M; Peacock A; Stockings E; Degenhardt L, 2020, 'All-Cause and Cause-Specific Mortality among People Using Extramedical Opioids: A Systematic Review and Meta-analysis', JAMA Psychiatry, 77, pp. 493 - 502, http://dx.doi.org/10.1001/jamapsychiatry.2019.4170

Santo T; Larance B; Bruno R; Gisev N; Nielsen S; Degenhardt L; Campbell G, 2020, 'Correlates of indicators of potential extra-medical opioid use in people prescribed opioids for chronic non-cancer pain', Drug and Alcohol Review, 39, pp. 128 - 134, http://dx.doi.org/10.1111/dar.13021

Larney S; Peacock A; Tran LT; Stockings E; Santomauro D; Santo T; Degenhardt L, 2020, 'All-Cause and Overdose Mortality Risk among People Prescribed Opioids: A Systematic Review and Meta-analysis', Pain Medicine United States, 21, pp. 3700 - 3711, http://dx.doi.org/10.1093/PM/PNAA214

Gisev N; Nielsen S; Campbell G; Santo T; Mant A; Bruno R; Cohen M; Hall WD; Larance B; Lintzeris N; Farrell M; Degenhardt L, 2019, 'Antidepressant Use among People Prescribed Opioids for Chronic Noncancer Pain', Pain Medicine United States, 20, pp. 2450 - 2458, http://dx.doi.org/10.1093/pm/pnz009

Stockings E; Tran LT; Santo T; Peacock A; Larney S; Santomauro D; Farrell M; Degenhardt L, 2019, 'Mortality among people with regular or problematic use of amphetamines: a systematic review and meta-analysis', Addiction, 114, pp. 1738 - 1750, http://dx.doi.org/10.1111/add.14706

Lintzeris N; Santo T; Nielsen S; Degenhardt L; Campbell G, 2019, 'Estimating Centre for Disease Control and Prevention-defined overdose risk in people prescribed opioids for chronic non-cancer pain: implications for take-home naloxone provision', Internal Medicine Journal, 49, pp. 1054 - 1055, http://dx.doi.org/10.1111/imj.14386

Conference Papers

Santo T; Campbell G; Gisev N; Martino-Burke D; Colledge-Frisby S; Clark B; Tran LT; Degenhardt L, 2023, 'Prevalence of substance use disorders among individuals with opioid use disorder: A systematic review and meta-analysis', in DRUG AND ALCOHOL REVIEW, WILEY, pp. S162 - S162

Leung J; Lim CCW; Sun T; Vu G; McClure-Thomas C; Bao Y; Santo T; Tran LT; Fausiah F; Farassania G; Chan GCK; Sebayang SK, 2023, 'The burden of preventable deaths attributable to second-hand smoke in Southeast Asia - Analysis of the global burden of disease study 2019', in DRUG AND ALCOHOL REVIEW, WILEY, pp. S106 - S107

Santo T; Gisev N; Campbell G; Degenhardt L, 2021, 'EXPOSURE TO CHILDHOOD TRAUMA AND OPIOID USE DISORDER AMONG PEOPLE PRESCRIBED OPIOIDS FOR CHRONIC PAIN: A LATENT CLASS AND DISCRETE-TIME ANALYSIS', in DRUG AND ALCOHOL REVIEW, WILEY, pp. S131 - S132

Conference Posters

Santo Jr T, 2024, 'Modelling the impact of opioid agonist treatment on suicide-related deaths among people with opioid use disorder', Wesley Conference Centre, Sydney NSW, presented at 2024 NDARC Annual Research Symposium, Wesley Conference Centre, Sydney NSW, 20 September 2024

Santo Jr T, 2024, 'Socio-demographic characteristics and treatment experiences of people with opioid dependence in New South Wales, Australia', Wesley Conference Centre, Sydney NSW, presented at 2024 NDARC Annual Research Symposium, Wesley Conference Centre, Sydney NSW, 20 September 2024

Conference Presentations

Santo Jr T, 2024, 'Global coverage of interventions to prevent and manage injecting drug use related harms in prisons: a systematic review', presented at 2024 NDARC Annual Research Symposium, Wesley Conference Centre, Sydney NSW, 20 September 2024, https://www.youtube.com/watch?v=SwVO9ONBuE8&t=4333s

Conference Abstracts

Santo T; Gisev N; Campbell G; Colledge-Friday S; Wilson J; Tran LT; Lynch M; Martino-Burke D; Taylor S; Degenhardt L, 2024, 'Prevalence of comorbid substance use disorders among people with opioid use disorder: A systematic review & meta-analysis', in International Journal of Drug Policy, Vol. 128, http://dx.doi.org/10.1016/j.drugpo.2024.104434

Asare-Doku W, 2023, 'Global coverage and retention factors of criminal justice-related drug and alcohol treatment programs among offenders: A systematic review', in Global coverage and retention factors of criminal justice-related drug and alcohol treatment programs among offenders: A systematic review, Adelaide, presented at APSAD 2023 Conference, Adelaide

Santo T; Campbell G; Gisev N; Tran LT; Martino-Burke D; Wilson J; Colledge-Frisby S; Clark B; Degenhardt L, 2023, 'Prevalence of Comorbid Substance Use Disorders Among People With Opioid Use Disorder: A Systematic Review and Meta-Analysis', in DRUG AND ALCOHOL DEPENDENCE, ELSEVIER IRELAND LTD, CO, Denver, Vol. 260, presented at 85th Annual Scientific Meeting of the College-on-Problems-of-Drug-Dependence (CPDD), CO, Denver, 17 July 2023 - 21 July 2023, http://dx.doi.org/10.1016/j.drugalcdep.2023.110148

Colledge-Frisby S; Jones N; Degenhardt L; Farrell M; Kwa J; Padmanathan P; Santo T; Hickman M; Gisev N, 2022, 'Suicide and self-harm among people prescribed opioid agonist treatment in New South Wales: A retrospective data linkage study', in DRUG AND ALCOHOL REVIEW, WILEY, Vol. 41, pp. S47 - S48, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000862018700083&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Santo T; Gisev N; Campbell G; Degenhardt L, 2022, 'Associations with childhood trauma and comorbid mental disorders among people with opioid dependence', in DRUG AND ALCOHOL REVIEW, WILEY, Vol. 41, pp. S124 - S125

Santo T; Clark B; Hickman M; Grebely J; Campbell G; Sordo L; Chen A; Tran LT; Bharat C; Padmanathan P; Cousins G; Dupouy J; Kelty E; Muga R; Nosyk B; Jeongmin ; Pavarin R; Farrell M; Degenhardt L, 2021, 'ASSOCIATION OF OPIOID AGONIST TREATMENT WITH ALL-CAUSE MORTALITY AND SPECIFIC CAUSES OF DEATH AMONG PEOPLE WITH OPIOID DEPENDENCE: A SYSTEMATIC REVIEW AND META-ANALYSIS', in DRUG AND ALCOHOL REVIEW, WILEY, Vol. 40, pp. S131 - S131

Santo T; Larance B; Campbell G; Bruno R; Gisev N; Lintzeris N; Nielsen S; Blyth F; Mattick RP; Degenhardt L, 2019, 'CORRELATES OF ABERRANT BEHAVIOUR IN A COHORT OF PEOPLE PRESCRIBED OPIOIDS FOR CHRONIC NON-CANCER PAIN', in DRUG AND ALCOHOL REVIEW, WILEY, Vol. 38, pp. S92 - S92, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000494890100232&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Tran LT; Santo T; Degenhardt L; Santomauro D; Peacock A; Stockings E; Larney S, 2019, 'MORTALITY IN PEOPLE WHO USE OPIOIDS: SYSTEMATIC REVIEW AND META-ANALYSIS', in DRUG AND ALCOHOL REVIEW, WILEY, Vol. 38, pp. S99 - S99, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000494890100250&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Tran LT; Peacock A; Stockings E; Larney S; Santo T; Santomauro D; Jones H; Farrell M; Degenhardt L, 2019, 'MORTALITY IN PEOPLE WHO USE STIMULANTS: SYSTEMATIC REVIEW AND META-ANALYSIS', in DRUG AND ALCOHOL REVIEW, WILEY, Vol. 38, pp. S99 - S99, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000494890100249&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Larance B; Degenhardt L; Grebely J; Nielsen S; Bruno R; Dietze PM; Lancaster K; Larney S; Santo T; Shanahan M; Memedovic S; Ali R; Farrell M, 2019, 'PERCEPTIONS OF EXTENDED-RELEASE BUPRENORPHINE INJECTIONS FOR OPIOID DEPENDENCE PRIOR TO AVAILABILITY IN AUSTRALIA: A CROSS-SECTIONAL SURVEY OF PEOPLE WHO USE OPIOIDS REGULARLY', in DRUG AND ALCOHOL REVIEW, WILEY, Vol. 38, pp. S63 - S64

Reports

Asare-Doku W; Stolk S; Peacock AMY; Shakeshaft A; Waller E; Nathan S; Economidis G; Ravulo J; Meo-Sewabu L; D'Este C; Thapa P; Abbott T; Satour T; Tulele L; Wilson K; Doran C; Mhey-Rivas T; Macpherson G; Lynch M; Taylor S; Santo T; Graham D; Baillie G; Tran A; Aiken A; Harwood E; Turner A; Reeve R; Degenhardt L; Farrell M, 2023, Monitoring and Evaluation of the Kava Pilot Program, National Drug and Alcohol Research Centre, UNSW, Sydney, https://www.odc.gov.au/resources/publications/monitoring-and-evaluation-kava-pilot-program

Theses / Dissertations

Santo Jr T, 2022, Examining childhood trauma and comorbid mental disorders among people with opioid use disorder, https://unsworks.unsw.edu.au/entities/publication/3ae006dc-6e2d-4567-91ce-9dc8d0b1dcd2/full

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