Faculty profile

Sameer Imtiaz

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Assistant ProfessorDepartment of PsychiatryUniversity of Toronto

Sameer Imtiaz

Assistant Professor

Department of Psychiatry

Temerty Faculty of Medicine

University of Toronto

Toronto, Ontario, Canada

Supervision signals

Professors usually supervise graduate students in their department's programs.
10 publications in the last five years, latest in 2026.
Senior (last) author on 3 recent papers, a sign of leading a research group.

These signals come from public records, including federal and provincial funding decisions. Ask the professor or the graduate program whether they are taking new students.

Academic metrics

Publications

2,378

Citations

Collaborators

Grants

Publications by year

Counts cover the publications linked to this profile. Citations and the h-index appear when the source records them.

Profiles and links

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Signals and details

Research

Read how they describe their research on their University of Toronto profile.

Latest papers

Shifting views on decriminalization in British Columbia: insights from public opinion polling, 2024-2025.
The American journal of drug and alcohol abuse · 2026 · senior author
The short-term impacts of the decriminalization of personal possession of select illegal drugs on drug possession criminal incidents and criminal cases in British Columbia, Canada (2013 to 2023).
The International journal on drug policy · 2026 · senior author
Nonmedical Use of Prescription Opioids: Use to Experience Subjective Effects Versus Other Nonmedical Use Among Adults in Ontario, Canada From 2020 to 2024.
Journal of studies on alcohol and drugs · 2026

All 28 publications

Latest funding

Alcohol policy liberalization and youth alcohol use and harms in Ontario
CIHR · 2024 · Co-investigator
$124,667
Evaluation BC exemption re. possession of illegal drugs (Evaluation of the British Columbia Exemption to Allow for Personal Possession of Small Amounts of Illegal Drugs)
CIHR · 2022 · Co-investigator
$2,849,643
Developing a COVID-19 Vaccination Strategy that Addresses the Needs of People Who Use Drugs in Canada
CIHR · 2021 · Co-investigator
$197,614

All 5 grants and awards

28 publications.

Shifting views on decriminalization in British Columbia: insights from public opinion polling, 2024-2025.

Ali F, Russell C, Henderson I, Elton-Marshall T, Lock K, Patenaude S, Shahin R, Smith W, Rehm J, Imtiaz S

The American journal of drug and alcohol abuse20262 citationsSenior authorOpen Access

DOI: 10.1080/00952990.2026.2612977 PMID: 41642840

The short-term impacts of the decriminalization of personal possession of select illegal drugs on drug possession criminal incidents and criminal cases in British Columbia, Canada (2013 to 2023).

Abdul SA, Wu E, Jiang H, Russell C, Ali F, Rehm J, Butler A, Elton-Marshall T, Henderson I, Gomes T, Greer A, Kinniburgh B, Le Foll B, Palis H, Patenaude S, Imtiaz S

The International journal on drug policy20262 citationsSenior author

DOI: 10.1016/j.drugpo.2026.105261 PMID: 41985344

Nonmedical Use of Prescription Opioids: Use to Experience Subjective Effects Versus Other Nonmedical Use Among Adults in Ontario, Canada From 2020 to 2024.

Nigatu YT, Wells S, Buckley L, Quilty LC, Bozinoff N, Ali F, Imtiaz S, Hamilton HA

Journal of studies on alcohol and drugs20261 citations

DOI: 10.15288/jsad.25-00213 PMID: 41273246

The Intersection of Ethno-Racial Identity and Gender Identity in Current Cannabis Use Among Adolescents.

Akther A, Colman I, Patte KA, Hilario CT, Leatherdale ST, Imtiaz S, Elton-Marshall T

Substance use & misuse2026

DOI: 10.1080/10826084.2026.2695444 PMID: 42522209

The Impact of British Columbia's Drug Decriminalization Policy on Police-Reported Drug Possession Seizures.

Imtiaz S, Abdul SA, Sanches M, Russell C, Ali F, Rehm J

American journal of preventive medicine2026First author

DOI: 10.1016/j.amepre.2026.108526 PMID: 42503363

Implementation factors shaping British Columbia's drug decriminalization pilot: A systematic review with narrative synthesis.

Ali F, Chellew Paternostro S, Imtiaz S, Crépault JF, Le Foll B, Russell C, Degenhardt L, Alsheikh H, Smith W, Rehm J

The International journal on drug policy2026Open Access

DOI: 10.1016/j.drugpo.2026.105431 PMID: 42480418

Age, period and cohort effects on heavy episodic drinking among adolescents in Ontario, Canada: 1999-2023.

Nigatu YT, Boak A, Imtiaz S, Hamilton HA

The American journal of drug and alcohol abuse2026

DOI: 10.1080/00952990.2025.2608981 PMID: 41628364

Public support of and attitudes toward decriminalization of possession of illegal drugs among the general population in British Columbia.

Imtiaz S, Russell C, Ali F, Elton-Marshall T, Patenaude S, Rehm J

Substance abuse treatment, prevention, and policy20256 citationsFirst authorOpen Access

DOI: 10.1186/s13011-025-00680-8 PMID: 41214736

Decriminalization of drug possession in British Columbia and hospitalizations for opioid poisoning.

Rehm J, Abdul SA, Ali F, Russell C, Crépault JF, Elton-Marshall T, Le Foll B, Kinniburgh B, Palis H, Imtiaz S

Public health20253 citationsSenior authorOpen Access

DOI: 10.1016/j.puhe.2025.105915 PMID: 40834626

Exploring the early impacts of drug decriminalization on harm reduction and opioid agonist treatment service operations and delivery in British Columbia: insights from key informant interviews.

Russell C, Torres-Salbach S, MacKinnon L, Shahin R, Griffith D, Hodgson K, Burmeister C, Amoraal C, Crichlow F, Imtiaz S, Rehm J, Ali F

BMC public health20251 citationsOpen Access

DOI: 10.1186/s12889-025-25479-x PMID: 41353135

Alcohol policy liberalization and youth alcohol use and harms in Ontario

Co-investigatorCIHR2024CG: Moving Upstream - Structural Determinants of Health - Substance Use in Youth

Principal investigators: Myran, Daniel; Hamilton, Hayley A

Keywords: Alcohol; Alcohol Policy; Population Health

$124,667

Evaluation BC exemption re. possession of illegal drugs (Evaluation of the British Columbia Exemption to Allow for Personal Possession of Small Amounts of Illegal Drugs)

Co-investigatorCIHR2022Operating Grant: Evaluation BC exemption re. possession of illegal drugs

Principal investigators: Rehm, Jürgen T; Ali, Farihah; Linklater, Renee

Keywords: Addiction; Decriminalization Of Illicit Substance; Opioid

$2,849,643

Developing a COVID-19 Vaccination Strategy that Addresses the Needs of People Who Use Drugs in Canada

Co-investigatorCIHR2021Operating Grant: COVID-19 Vaccine Confidence

Principal investigators: Elton-Marshall, Tara E; Shahin, Rita M

Keywords: Covid-19; Substance Use; Vaccine Confidence

$197,614

Supervised Consumption and COVID-19 in ON: an Evaluation (SCCONE)

Co-investigatorCIHR2020Op Gr: Eval of Harm Reduct. Appro. Address the Opioid Crisis - SCS Eval. Ontario

Principal investigators: Bayoumi, Ahmed M

Keywords: Administrative Data Analysis; Cost-Effectiveness Analysis; Harm Reduction; Implementation Science; Mathematical Optimization; Multi-Methods Research; Program Evaluation; Qualitative Research; Simulation Modelling; Supervised Consumption

Triangulating Evidence to Evaluate the Impact of Cannabis Policy in Ontario

Co-investigatorCIHR2019Partnerships for Cannabis Policy Evaluation

Principal investigators: Elton-Marshall, Tara E; Pisko, Laura A; Schwartz, Robert M

Keywords: Cannabis; Policy Evaluation

From public funding decisions: CIHR since 2008, NSERC since 1991 and SSHRC since 1998 with their latest competition results, the Canada Foundation for Innovation, Genome Canada, the Canadian Space Agency, Canada Research Chairs, the Fonds de recherche du Québec, Ontario research funding, Michael Smith Health Research BC, the Canadian Cancer Society, Heart & Stroke and Brain Canada.

Profile data last refreshed on September 29, 2026 from the university directory, publication records and public research funding records.

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Sameer Imtiaz

Research

Latest papers

Latest funding

Shifting views on decriminalization in British Columbia: insights from public opinion polling, 2024-2025.

The short-term impacts of the decriminalization of personal possession of select illegal drugs on drug possession criminal incidents and criminal cases in British Columbia, Canada (2013 to 2023).

Nonmedical Use of Prescription Opioids: Use to Experience Subjective Effects Versus Other Nonmedical Use Among Adults in Ontario, Canada From 2020 to 2024.

The Intersection of Ethno-Racial Identity and Gender Identity in Current Cannabis Use Among Adolescents.

The Impact of British Columbia's Drug Decriminalization Policy on Police-Reported Drug Possession Seizures.

Implementation factors shaping British Columbia's drug decriminalization pilot: A systematic review with narrative synthesis.

Age, period and cohort effects on heavy episodic drinking among adolescents in Ontario, Canada: 1999-2023.

Public support of and attitudes toward decriminalization of possession of illegal drugs among the general population in British Columbia.

Decriminalization of drug possession in British Columbia and hospitalizations for opioid poisoning.

Exploring the early impacts of drug decriminalization on harm reduction and opioid agonist treatment service operations and delivery in British Columbia: insights from key informant interviews.

Alcohol policy liberalization and youth alcohol use and harms in Ontario

Evaluation BC exemption re. possession of illegal drugs (Evaluation of the British Columbia Exemption to Allow for Personal Possession of Small Amounts of Illegal Drugs)

Developing a COVID-19 Vaccination Strategy that Addresses the Needs of People Who Use Drugs in Canada

Supervised Consumption and COVID-19 in ON: an Evaluation (SCCONE)

Triangulating Evidence to Evaluate the Impact of Cannabis Policy in Ontario

Frequent collaborators

Jurgen Rehm

Farihah Ali

Michael Roerecke

Kevin Shield

Tara Elton-Marshall

Bernard Le Foll

Andriy Samokhvalov

Beth Fischer

Benedikt Fischer

Charlotte Probst

Heather Palis

Paul Shuper

Rita Shahin

Paul Kurdyak

Jean-François Crépault

Samantha Wells

Alissa Greer

Carla Hilario

Amanda Butler

Nikki Bozinoff