Faculty profile

Darrell Tan

ResearcherInfectious DiseasesUniversity of Toronto

This profile is built from public research funding records (CIHR, NSERC and SSHRC) and PubMed. We have not imported them from a University of Toronto directory, so their courses and email address may be missing. Find their university profile.

Darrell Tan

Researcher

Infectious Diseases

Health Sciences

University of Toronto

Toronto, Ontario, Canada

Supervision signals

Has led research grants, which requires an independent research appointment. Ask their department whether they supervise graduate students.
5 publications in the last five years, latest in 2025.
Principal investigator on 29 research grants (29 CIHR), most recently in 2025.

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

Academic metrics

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Citations

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Collaborators

Grants

Publications by year

Counts cover the works listed on the university profile; citation counts come from Dimensions.

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Signals and details

Research

Pre-Exposure Prophylaxis Post-Exposure Prophylaxis Hiv Prevention Men Who Have Sex With Men Hiv Community-Based Research Hiv/Aids Epidemiology

Latest papers

Post-arrival HIV acquisition patterns: Insights from African, Caribbean, and Black immigrant communities in Canada.
Canadian journal of public health = Revue canadienne de sante publique · 2025
Pre-exposure prophylaxis and bacterial sexually transmitted infections (STIs) among gay and bisexual men.
Sexually transmitted infections · 2023
Monkeypox Virus Infection in Humans across 16 Countries - April-June 2022.
The New England journal of medicine · 2022

All 10 publications

Latest funding

Preparing for the use of long-acting antiretrovirals in HIV post-exposure prophylaxis
CIHR · 2025 · Nominated PI
$256,276
Keeping the Guideline Timely: Incorporating 6-monthly Lenacapavir into Canadian HIV PrEP Guidelines
CIHR · 2025 · Nominated PI
$20,000
CAMP 2.0 An Ongoing Community-based Interdisciplinary Model for Mpox pandemic Preparedness
CIHR · 2025 · Nominated PI
$350,000

All 57 grants and awards

10 publications.

Post-arrival HIV acquisition patterns: Insights from African, Caribbean, and Black immigrant communities in Canada.

Tharao W, Nyoni T, Daftary A, Bullock S, Blot S, Pierre-Pierre V, Loutfy M, Kaul R, Tan D, Rachlis A, Cooper C, Salit I, Luyombya H, Ryan ST, Calzavara L, MSAFIRI Study Team

Canadian journal of public health = Revue canadienne de sante publique2025

DOI: 10.17269/s41997-024-00991-6 PMID: 39994149

Pre-exposure prophylaxis and bacterial sexually transmitted infections (STIs) among gay and bisexual men.

Hart TA, Noor SW, Berlin GW, Skakoon-Sparling S, Tavangar F, Tan D, Lambert G, Grace D, Lachowsky NJ, Jollimore J, Sang J, Parlette A, Lal A, Apelian H, Moore D, Cox J, Engage Study

Sexually transmitted infections2023

DOI: 10.1136/sextrans-2021-055381 PMID: 35701145

Monkeypox Virus Infection in Humans across 16 Countries - April-June 2022.

Thornhill JP, Barkati S, Walmsley S, Rockstroh J, Antinori A, Harrison LB, Palich R, Nori A, Reeves I, Habibi MS, Apea V, Boesecke C, Vandekerckhove L, Yakubovsky M, Sendagorta E, Blanco JL, Florence E, Moschese D, Maltez FM, Goorhuis A, Pourcher V, Migaud P, Noe S, Pintado C, Maggi F, Hansen AE, Hoffmann C, Lezama JI, Mussini C, Cattelan A, Makofane K, Tan D, Nozza S, Nemeth J, Klein MB, Orkin CM, SHARE-net Clinical Group

The New England journal of medicine2022

DOI: 10.1056/nejmoa2207323 PMID: 35866746

Low-dose trimethoprim-sulfamethoxazole for the treatment of Pneumocystis jirovecii pneumonia (LOW-TMP): protocol for a phase III randomised, placebo-controlled, dose-comparison trial.

Sohani ZN, Butler-Laporte G, Aw A, Belga S, Benedetti A, Carignan A, Cheng MP, Coburn B, Costiniuk CT, Ezer N, Gregson D, Johnson A, Khwaja K, Lawandi A, Leung V, Lother S, MacFadden D, McGuinty M, Parkes L, Qureshi S, Roy V, Rush B, Schwartz I, So M, Somayaji R, Tan D, Trinh E, Lee TC, McDonald EG

BMJ open2022

DOI: 10.1136/bmjopen-2021-053039 PMID: 35863836

A randomized control trial of high-dose micronutrient-antioxidant supplementation in healthy persons with untreated HIV infection.

Wobeser WL, McBane JE, Balfour L, Conway B, Gill MJ, Huff H, Kilby DLP, Fergusson DA, Mallick R, Mills EJ, Muldoon KA, Rachlis A, Ralph ED, Rosenes R, Singer J, Singhal N, Tan D, Tremblay N, Vo D, Walmsley SL, Cameron DW, MAINTAIN Study Group

PloS one2022

DOI: 10.1371/journal.pone.0270590 PMID: 35834528

CTN 328: immunogenicity outcomes in people living with HIV in Canada following vaccination for COVID-19 (HIV-COV): protocol for an observational cohort study.

Costiniuk CT, Singer J, Langlois MA, Kulic I, Needham J, Burchell A, Jenabian MA, Walmsley S, Ostrowski M, Kovacs C, Tan D, Harris M, Hull M, Brumme Z, Brockman M, Margolese S, Mandarino E, Angel JB, Routy JP, Anis AH, Cooper C

BMJ open2021

DOI: 10.1136/bmjopen-2021-054208 PMID: 34916326

Attitudes and Practices of a Sample of Nova Scotian Physicians for the Implementation of HIV Pre-Exposure Prophylaxis.

Sinno J, Doria N, Cochkanoff N, Numer M, Neyedli H, Tan D

HIV/AIDS (Auckland, N.Z.)2021Senior author

DOI: 10.2147/hiv.s287201 PMID: 33574712

Conceptualizing Geosexual Archetypes: Mapping the Sexual Travels and Egocentric Sexual Networks of Gay and Bisexual Men in Toronto, Canada.

Gesink D, Wang S, Guimond T, Kimura L, Connell J, Salway T, Gilbert M, Mishra S, Tan D, Burchell AN, Brennan DJ, Logie CH, Grace D

Sexually transmitted diseases2018

DOI: 10.1097/olq.0000000000000752 PMID: 29465690

Lopinavir plus ritonavir: a novel protease inhibitor combination for HIV infections.

Tan D, Walmsley S

Expert review of anti-infective therapy2007First author

DOI: 10.1586/14787210.5.1.13 PMID: 17266450

Mild to moderate symptoms do not correlate with lactate levels in HIV-positive patients on nucleoside reverse transcriptase inhibitors.

Tan D, Walmsley S, Shen S, Raboud J

HIV clinical trials2006First author

DOI: 10.1310/95ve-a6kj-wrq0-1f8y PMID: 16880167

Preparing for the use of long-acting antiretrovirals in HIV post-exposure prophylaxis

Nominated PICIHR2025Project Grant

Principal investigators: Tan, Darrell H; Grace, Daniel; O'Byrne, Patrick; Woodward, Kevin

Keywords: Focus Groups; Formative Research; Hiv Prevention; In-Depth Interviews; Post-Exposure Prophylaxis; Prospective Cohort Study; Retrospective Cohort Study

$256,276

Keeping the Guideline Timely: Incorporating 6-monthly Lenacapavir into Canadian HIV PrEP Guidelines

Nominated PICIHR2025Planning and Dissemination Grant - Institute Community Support

Principal investigators: Tan, Darrell H

Keywords: Clinical Guidelines; Hiv Prevention; Lenacapavir; Pre-Exposure Prophylaxis

$20,000

CAMP 2.0 An Ongoing Community-based Interdisciplinary Model for Mpox pandemic Preparedness

Nominated PICIHR2025Team Grant: Monkeypox Rapid Research Response - Extension

Principal investigators: Tan, Darrell H; Adebajo, Sylvia; Audu, Rosemary; Chan, Adrienne; DAODU, OLUWAFEMI B; Klein, Marina B; Kozak, Robert A; Kwong, Jeffrey C; McGeer, Allison J; Mishra, Sharmistha; Okpokoro, Evaezi; Olufadewa, Isaac I; Walmsley, Sharon L

Keywords: Clinical Trial; Epidemiology; Mathematical Modeling; Prospective Cohort; Vaccine Effectiveness; Veterinary Medecine; Virology

$350,000

A National Interdisciplinary Community-Based Network Working to Enhance Intersectional and Gender-Affirming HIV/STBBI Prevention and Care Among Transgender and Gender Diverse People in Canada

Co-investigatorCIHR2025Team Grant: HIV/AIDS and STBBI CBR - Transgender and non-binary people

Principal investigators: Loutfy, Mona R; Davis, Chelsea D; Gunduz, Asya; Lacombe-Duncan, Ashley; Underhill, Angela A

Keywords: Community-Based Research; Gender-Affirming Care; Hiv/Stbbi Prevention And Care; Impact Research; Knowledge Mobilization; Trans And Gender Diverse People

$1,000,000

A Culturally Responsive Prospective Study to Improve Education and Access to HIV Pre-exposure Prophylaxis for First Nations, Métis and Inuit Peoples

Co-investigatorCIHR2024Project Grant

Principal investigators: Swidrovich, Jaris P

Keywords: Health Equity; Health Services; Hiv/Aids; Indigenous; Pharmacy; Sexual Health

$76,500

Planning HSV-2 PrEP and PEP Trials by Studying Seroprevalence and Acceptability

Nominated PICIHR2024Ca. Gr.: Biomedical Res. for HIV/AIDS/STBBI - Next-generation prev. technologies

Principal investigators: Tan, Darrell H; Burchell, Ann N; Cox, John J; Ndungu, Mary

Keywords: Acceptability; Cisgender Women; Gay, Bisexual And Other Men Who Have Sex With Men; Herpes Simplex Virus; Post-Exposure Prophylaxis; Pre-Exposure Prophylaxis; Seroprevalence; Serosurvey

$200,000

Canadian Guidelines on HIV PrEP and PEP: From Formulation to Implementation

Nominated PICIHR2024Planning and Dissemination Grant - Institute Community Support

Principal investigators: Tan, Darrell H

Keywords: Clinical Guidelines; Hiv; Implementation Science; Knowledge Dissemination; Medical Education; Post-Exposure Prophylaxis; Pre-Exposure Prophylaxis

$20,000

Serving those left behind: Developing a precision approach to PrEP and ART delivery in Ontario

Nominated PICIHR2024Team Gr.: Embracing Diversity Achieve Prec./Health Equity-HIV/AIDS/STBBI-PHP-LOI

Principal investigators: Tan, Darrell H; Kroch, Abigail; Mishra, Sharmistha

Keywords: Administrative Data; Antiretroviral Therapy; Cohort Studies; Epidemiology; Hiv Prevention And Care Cascade; Knowledge Mobilization; Phylogenetics; Pre-Exposure Prophylaxis; Qualitative Research; Social Network Analysis

$20,000

Building a National Network to Enhance Intersectional and Gender-affirming HIV/STBBI Prevention and Care Among Transgender and Gender Diverse People in Canada

Co-investigatorCIHR2024Team Grant: HIV/AIDS and STBBI CBR - Transgender and non-binary people - LOI

Principal investigators: Loutfy, Mona R; Gunduz, Asya; Lacombe-Duncan, Ashley; Underhill, Angela A

Keywords: Community-Based Research; Gender-Affirming Care; Hiv Prevention; Hiv/Stbbi Care; Intersectionality; Stbbi Prevention; Transgender (Trans)

$99,998

Canada Research Chair - Tier 2

Nominated PICIHR2024Canada Research Chairs - CIHR Funded - Tier 2

Principal investigators: Tan, Darrell H

Keywords: Crc

$500,000

From CIHR, NSERC and SSHRC funding decisions: CIHR since 2008, NSERC since 1991 and SSHRC since 1998, including their latest published competition results.

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Darrell Tan

Research

Latest papers

Latest funding

Post-arrival HIV acquisition patterns: Insights from African, Caribbean, and Black immigrant communities in Canada.

Pre-exposure prophylaxis and bacterial sexually transmitted infections (STIs) among gay and bisexual men.

Monkeypox Virus Infection in Humans across 16 Countries - April-June 2022.

Low-dose trimethoprim-sulfamethoxazole for the treatment of Pneumocystis jirovecii pneumonia (LOW-TMP): protocol for a phase III randomised, placebo-controlled, dose-comparison trial.

A randomized control trial of high-dose micronutrient-antioxidant supplementation in healthy persons with untreated HIV infection.

CTN 328: immunogenicity outcomes in people living with HIV in Canada following vaccination for COVID-19 (HIV-COV): protocol for an observational cohort study.

Attitudes and Practices of a Sample of Nova Scotian Physicians for the Implementation of HIV Pre-Exposure Prophylaxis.

Conceptualizing Geosexual Archetypes: Mapping the Sexual Travels and Egocentric Sexual Networks of Gay and Bisexual Men in Toronto, Canada.

Lopinavir plus ritonavir: a novel protease inhibitor combination for HIV infections.

Mild to moderate symptoms do not correlate with lactate levels in HIV-positive patients on nucleoside reverse transcriptase inhibitors.

Frequent collaborators

Sharon Walmsley

Darrell Tan

Darrell Tan

Daniel Grace

Curtis Cooper

Sharmistha Mishra

Mark Brockman

Mohammad-Ali Jenabian

Wangari Tharao

Matthew Numer

Dionne Gesink

Zabrina Brumme

Bryan Coburn

Darrell Tan

Andrea Benedetti

Mohammad-Ali Jenabian

Salman Qureshi

Shari Margolese

Gilles Lambert

Shayna Skakoon-Sparling

Derek MacFadden

Janet Raboud

Wangari Tharao

Amrita Daftary

David Moore

Rupert Kaul

Mario Ostrowski

Jean-Pierre Routy

Mona Loutfy

Mark Hull