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Jess Fiedorowicz

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ProfessorPsychiatryUniversity of Ottawa

Jess Fiedorowicz

Professor

Psychiatry

Faculty of Medicine

University of Ottawa

Ottawa, Ontario, Canada

Scholar

Supervision signals

Professors usually supervise graduate students in their department's programs.
13 publications in the last five years, latest in 2026.
Principal investigator on 7 research grants (7 CIHR), most recently in 2025.

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Research

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

Bipolar Disorder Schizophrenia Mental Health Patient Engagement Adults Candesartan Depressive Symptoms Randomized Clinical Trial

Latest papers

Well-being differences and changes in people with somatic and psychiatric disorders or multimorbidities: modelling COVID-19 as a global natural experiment of stress vulnerability.
BMJ mental health · 2026
First-episode psychosis and substance use involvement across birth cohorts in Canada: a retrospective longitudinal population-based study.
The lancet. Psychiatry · 2026
Mental health, coping and related risk factors during the first 2 years of the COVID-19 pandemic in children: Nationally representative, multi-wave, cross-sectional results from 12 countries from the global COH-FIT study.
European neuropsychopharmacology : the journal of the European College of Neuropsychopharmacology · 2026

All 14 publications

Latest funding

Advancing the CCBHC by Leveraging Existing Longitudinal Cohorts and Investigating Psilocybin as a Novel Treatment for Cannabis Use Disorder
CIHR · 2026 · Co-investigator
$2,400,000
Metformin for treatment-resistant bipolar depression (TRBD) with co-morbid insulin resistance (IR): A double-blind randomized control trial
CIHR · 2025 · Co-investigator
$1,510,875
Canadian Extension of the Candesartan Adjunctive Bipolar Depression Trial (CADET)
CIHR · 2025 · Nominated PI
$405,451

All 17 grants and awards

14 publications.

Well-being differences and changes in people with somatic and psychiatric disorders or multimorbidities: modelling COVID-19 as a global natural experiment of stress vulnerability.

Adam TJ, Thompson T, Peroz FH, Heisig JP, Gellert P, Alonso-Perez E, Bister L, Thygesen LC, Conus P, von Känel R, Seedat S, Manková D, Guinart D, Vieta E, Millan MJ, De Leo D, Berk M, Fiedorowicz J, Yang L, Tiihonen J, Aschauer H, Schlögelhofer M, Hamilton JE, Solmi M, Correll CU, COH-FIT Consortium

BMJ mental health2026

DOI: 10.1136/bmjment-2026-302777 PMID: 42686352

First-episode psychosis and substance use involvement across birth cohorts in Canada: a retrospective longitudinal population-based study.

Myran DT, Gibb M, Pugliese M, Fiedorowicz J, Kirkbride JB, Anderson KK, Kurdyak P, Tibbo PG, Colman I, Correll CU, Ramsay T, Solmi M

The lancet. Psychiatry2026

DOI: 10.1016/s2215-0366(25)00395-5 PMID: 41720572

Mental health, coping and related risk factors during the first 2 years of the COVID-19 pandemic in children: Nationally representative, multi-wave, cross-sectional results from 12 countries from the global COH-FIT study.

Agorastos A, Thompson T, Solmi M, Cortese S, Estradé A, Radua J, Dragioti E, Vancampfort D, Thygesen LC, Aschauer H, Schlögelhofer M, Aschauer E, Schneeberger A, Huber CG, Hasler G, Conus P, Do Cuénod KQ, von Känel R, Arrondo G, Fusar-Poli P, Gorwood P, Llorca PM, Krebs MO, Scanferla E, Kishimoto T, Rabbani G, Skonieczna-Żydecka K, Brambilla P, Favaro A, Takamiya A, Zoccante L, Colizzi M, Bourgin J, Kamiński K, Moghadasin M, Seedat S, Matthews E, Wells J, Vassilopoulou E, Gadelha A, Su KP, Kwon JS, Kim M, Lee T, Papsuev O, Manková D, Boscutti A, Gerunda C, Saccon D, Righi E, Monaco F, Croatto G, Cereda G, Demurtas J, Brondino N, Veronese N, Enrico P, Politi P, Ciappolino V, Pfennig A, Bechdolf A, Meyer-Lindenberg A, Kahl KG, Domschke K, Bauer M, Koutsouleris N, Winter SM, Borgwardt S, Bitter I, Balazs J, Czobor P, Unoka Z, Mavridis D, Tsamakis K, Bozikas VP, Tunvirachaisakul C, Maes M, Rungnirundorn T, Supasitthumrong T, Haque A, Brunoni AR, Costardi CG, Schuch FB, Polanczyk G, Luiz JM, Fonseca L, Aparicio LV, Valvassori SS, Nordentoft M, Vendsborg P, Hoffmann SH, Sehli J, Sartorius N, Heuss SC, Guinart D, Hamilton J, Kane J, Rubio J, Sand M, Koyanagi A, Solanes A, Andreu-Bernabeu A, Cáceres ASJ, Arango C, Díaz-Caneja CM, Hidalgo-Mazzei D, Vieta E, Gonzalez-Peñas J, Fortea L, Parellada M, Fullana MA, Verdolini N, Andrlíková E, Janků K, Millan MJ, Honciuc M, Moniuszko-Malinowska A, Łoniewski I, Samochowiec J, Kiszkiel Ł, Marlicz M, Sowa P, Marlicz W, Spies G, Stubbs B, Firth J, Sullivan S, Darcin AE, Aksu H, Dilbaz N, Noyan O, Kitazawa M, Kurokawa S, Tazawa Y, Anselmi A, Cracco C, Machado AI, Estrade N, De Leo D, Curtis J, Berk M, Carvalho AF, Ward P, Teasdale S, Rosenbaum S, Marx W, Horodnic AV, Oprea L, Alexinschi O, Ifteni P, Turliuc S, Ciuhodaru T, Bolos A, Matei V, Nieman DH, Sommer I, van Os J, van Amelsvoort T, Sun CF, Guu TW, Jiao C, Zhang J, Fan J, Zou L, Yu X, Chi X, de Timary P, van Winkel R, Ng B, Pena E, Arellano R, Roman R, Sanchez T, Movina L, Morgado P, Brissos S, Aizberg O, Mosina A, Krinitski D, Mugisha J, Sadeghi-Bahmani D, Sheybani F, Sadeghi M, Hadi S, Brand S, Errazuriz A, Crossley N, Ristic DI, López-Jaramillo C, Efthymiou D, Kuttichira P, Kallivayalil RA, Javed A, Afridi MI, James B, Seb-Akahomen OJ, Fiedorowicz J, Daskalakis J, Yatham LN, Yang L, Okasha T, Dahdouh A, Tiihonen J, Shin JI, Lee J, Mhalla A, Gaha L, Brahim T, Altynbekov K, Negay N, Nurmagambetova S, Jamei YA, Weiser M, Correll CU

European neuropsychopharmacology : the journal of the European College of Neuropsychopharmacology2026

DOI: 10.1016/j.euroneuro.2025.112741 PMID: 41418519

Considerations in the development of learning health networks for mood disorders.

Lipschitz JM, Adler C, Almeida JRC, Assari S, Bond DJ, Breitzig MT, DePaulo JR, El-Mallakh R, Fiedorowicz J, Freshley J, Fries GR, Frye MA, Goes FS, Gonzalez R, Huber R, Jamison K, Liu G, Machado-Vieira R, Mahon P, McInnis MG, Meyer TD, Youssef NA, Nurnberger JI, Ostacher M, Parikh SV, Pinjari O, Raj K, Respino M, Sanches M, Schneck CD, Singh MK, Soares JC, Strakowski SM, Sullivan A, Suppes T, Thase ME, Wang P, Waxmonsky JA, Yurgelun-Todd D, Zandi PP, Burdick KE

Journal of affective disorders2026

DOI: 10.1016/j.jad.2025.119904 PMID: 40652981

Efficacy, all-cause discontinuation, and safety of serotonergic psychedelics and MDMA to treat mental disorders: A living systematic review with meta-analysis.

Højlund M, Kafali HY, Kırmızı B, Fusar-Poli P, Correll CU, Cortese S, Sabé M, Fiedorowicz J, Saraf G, Zein J, Berk M, Husain MI, Rosenblat JD, Rubaiyat R, Corace K, Wong S, Hatcher S, Kaluzienski M, Yatham LN, Cipriani A, Gosling CJ, Carhart-Harris R, Tanuseputro P, Myran DT, Fabiano N, Moher D, Mayo LM, Nicholls SG, White T, Prisco M, Radua J, Vieta E, Ladha KS, Katz J, Veroniki AA, Solmi M

European neuropsychopharmacology : the journal of the European College of Neuropsychopharmacology2025

DOI: 10.1016/j.euroneuro.2025.09.011 PMID: 41205366

Collaborative Outcomes Study on Health and Functioning During Infection Times (COH-FIT): Global and Risk-Group Stratified Course of Well-Being and Mental Health During the COVID-19 Pandemic in Adolescents.

Solmi M, Thompson T, Cortese S, Estradé A, Agorastos A, Radua J, Dragioti E, Vancampfort D, Thygesen LC, Aschauer H, Schlögelhofer M, Aschauer E, Schneeberger AA, Huber CG, Hasler G, Conus P, Do Cuénod KQ, von Känel R, Arrondo G, Fusar-Poli P, Gorwood P, Llorca PM, Krebs MO, Scanferla E, Kishimoto T, Rabbani G, Skonieczna-Żydecka K, Brambilla P, Favaro A, Takamiya A, Zoccante L, Colizzi M, Bourgin J, Kamiński K, Moghadasin M, Seedat S, Matthews E, Wells J, Vassilopoulou E, Gadelha A, Su KP, Kwon JS, Kim M, Lee TY, Papsuev O, Manková D, Boscutti A, Gerunda C, Saccon D, Righi E, Monaco F, Croatto G, Cereda G, Demurtas J, Brondino N, Veronese N, Enrico P, Politi P, Ciappolino V, Pfennig A, Bechdolf A, Meyer-Lindenberg A, Kahl KG, Domschke K, Bauer M, Koutsouleris N, Winter S, Borgwardt S, Bitter I, Balazs J, Czobor P, Unoka Z, Mavridis D, Tsamakis K, Bozikas VP, Tunvirachaisakul C, Maes M, Rungnirundorn T, Supasitthumrong T, Haque A, Brunoni AR, Costardi CG, Schuch FB, Polanczyk G, Luiz JM, Fonseca L, Aparicio LV, Valvassori SS, Nordentoft M, Vendsborg P, Hoffmann SH, Sehli J, Sartorius N, Heuss S, Guinart D, Hamilton J, Kane J, Rubio J, Sand M, Koyanagi A, Solanes A, Andreu-Bernabeu A, San José Cáceres A, Arango C, Díaz-Caneja CM, Hidalgo-Mazzei D, Vieta E, Gonzalez-Peñas J, Fortea L, Parellada M, Fullana MA, Verdolini N, Andrlíková E, Janků K, Millan MJ, Honciuc M, Moniuszko-Malinowska A, Łoniewski I, Samochowiec J, Kiszkiel Ł, Marlicz M, Sowa P, Marlicz W, Spies G, Stubbs B, Firth J, Sullivan S, Darcin AE, Aksu H, Dilbaz N, Noyan O, Kitazawa M, Kurokawa S, Tazawa Y, Anselmi A, Cracco C, Machado AI, Estrade N, De Leo D, Curtis J, Berk M, Carvalho AF, Ward P, Teasdale S, Rosenbaum S, Marx W, Horodnic AV, Oprea L, Alexinschi O, Ifteni P, Turliuc S, Ciuhodaru T, Bolos A, Matei V, Nieman DH, Sommer I, van Os J, van Amelsvoort T, Sun CF, Guu TW, Jiao C, Zhang J, Fan J, Zou L, Yu X, Chi X, de Timary P, van Winkel R, Ng B, Pena E, Arellano R, Roman R, Sanchez T, Movina L, Morgado P, Brissos S, Aizberg O, Mosina A, Krinitski D, Mugisha J, Sadeghi-Bahmani D, Sheybani F, Sadeghi M, Hadi S, Brand S, Errazuriz A, Crossley N, Ristic DI, López-Jaramillo C, Efthymiou D, Kuttichira P, Kallivayalil RA, Javed A, Afridi MI, James B, Seb-Akahomen OJ, Fiedorowicz J, Daskalakis J, Yatham LN, Yang L, Okasha T, Dahdouh A, Tiihonen J, Shin JI, Lee J, Mhalla A, Gaha L, Brahim T, Altynbekov K, Negay N, Nurmagambetova S, Jamei YA, Weiser M, Correll CU

Journal of the American Academy of Child and Adolescent Psychiatry2025

DOI: 10.1016/j.jaac.2024.07.932 PMID: 39581373

Characteristics of people with bipolar disorder I with and without auditory verbal hallucinations.

Javier A, Jaworska N, Fiedorowicz J, Magnotta V, Richards JG, Barsotti EJ, Wemmie JA

International journal of bipolar disorders2025

DOI: 10.1186/s40345-025-00369-8 PMID: 39953335

Collaborative outcomes study on health and functioning during infection times (COH-FIT): Insights on modifiable and non-modifiable risk and protective factors for wellbeing and mental health during the COVID-19 pandemic from multivariable and network analyses.

Solmi M, Thompson T, Cortese S, Estradé A, Agorastos A, Radua J, Dragioti E, Vancampfort D, Thygesen LC, Aschauer H, Schlögelhofer M, Aschauer E, Schneeberger A, Huber CG, Hasler G, Conus P, Cuénod KQD, von Känel R, Arrondo G, Fusar-Poli P, Gorwood P, Llorca PM, Krebs MO, Scanferla E, Kishimoto T, Rabbani G, Skonieczna-Żydecka K, Brambilla P, Favaro A, Takamiya A, Zoccante L, Colizzi M, Bourgin J, Kamiński K, Moghadasin M, Seedat S, Matthews E, Wells J, Vassilopoulou E, Gadelha A, Su KP, Kwon JS, Kim M, Lee TY, Papsuev O, Manková D, Boscutti A, Gerunda C, Saccon D, Righi E, Monaco F, Croatto G, Cereda G, Demurtas J, Brondino N, Veronese N, Enrico P, Politi P, Ciappolino V, Pfennig A, Bechdolf A, Meyer-Lindenberg A, Kahl KG, Domschke K, Bauer M, Koutsouleris N, Winter S, Borgwardt S, Bitter I, Balazs J, Czobor P, Unoka Z, Mavridis D, Tsamakis K, Bozikas VP, Tunvirachaisakul C, Maes M, Rungnirundorn T, Supasitthumrong T, Haque A, Brunoni AR, Costardi CG, Schuch FB, Polanczyk G, Luiz JM, Fonseca L, Aparicio LV, Valvassori SS, Nordentoft M, Vendsborg P, Hoffmann SH, Sehli J, Sartorius N, Heuss S, Guinart D, Hamilton J, Kane J, Rubio J, Sand M, Koyanagi A, Solanes A, Andreu-Bernabeu A, Cáceres ASJ, Arango C, Díaz-Caneja CM, Hidalgo-Mazzei D, Vieta E, Gonzalez-Peñas J, Fortea L, Parellada M, Fullana MA, Verdolini N, Andrlíková E, Janků K, Millan MJ, Honciuc M, Moniuszko-Malinowska A, Łoniewski I, Samochowiec J, Kiszkiel Ł, Marlicz M, Sowa P, Marlicz W, Spies G, Stubbs B, Firth J, Sullivan S, Darcin AE, Aksu H, Dilbaz N, Noyan O, Kitazawa M, Kurokawa S, Tazawa Y, Anselmi A, Cracco C, Machado AI, Estrade N, De Leo D, Curtis J, Berk M, Carvalho AF, Ward P, Teasdale S, Rosenbaum S, Marx W, Horodnic AV, Oprea L, Alexinschi O, Ifteni P, Turliuc S, Ciuhodaru T, Bolos A, Matei V, Nieman DH, Sommer I, van Os J, van Amelsvoort T, Sun CF, Guu TW, Jiao C, Zhang J, Fan J, Zou L, Yu X, Chi X, de Timary P, van Winkel R, Ng B, Peña de León E, Arellano R, Roman R, Sanchez T, Movina L, Morgado P, Brissos S, Aizberg O, Mosina A, Krinitski D, Mugisha J, Sadeghi-Bahmani D, Sheybani F, Sadeghi M, Hadi S, Brand S, Errazuriz A, Crossley N, Ristic DI, López-Jaramillo C, Efthymiou D, Kuttichira P, Kallivayalil RA, Javed A, Afridi MI, James B, Seb-Akahomen OJ, Fiedorowicz J, Daskalakis J, Yatham LN, Yang L, Okasha T, Dahdouh A, Tiihonen J, Shin JI, Lee J, Mhalla A, Gaha L, Brahim T, Altynbekov K, Negay N, Nurmagambetova S, Jamei YA, Weiser M, Correll CU

European neuropsychopharmacology : the journal of the European College of Neuropsychopharmacology2025

DOI: 10.1016/j.euroneuro.2024.07.010 PMID: 39341043

Global and risk-group stratified well-being and mental health during the COVID-19 pandemic in adults: Results from the international COH-FIT Study.

Solmi M, Thompson T, Estradé A, Agorastos A, Radua J, Cortese S, Dragioti E, Vancampfort D, Thygesen LC, Aschauer H, Schlögelhofer M, Aschauer E, Schneeberger A, Huber CG, Hasler G, Conus P, Cuénod KQD, von Känel R, Arrondo G, Fusar-Poli P, Gorwood P, Llorca PM, Krebs MO, Scanferla E, Kishimoto T, Rabbani G, Skonieczna-Żydecka K, Brambilla P, Favaro A, Takamiya A, Zoccante L, Colizzi M, Bourgin J, Kamiński K, Moghadasin M, Seedat S, Matthews E, Wells J, Vassilopoulou E, Gadelha A, Su KP, Kwon JS, Kim M, Lee TY, Papsuev O, Manková D, Boscutti A, Gerunda C, Saccon D, Righi E, Monaco F, Croatto G, Cereda G, Demurtas J, Brondino N, Veronese N, Enrico P, Politi P, Ciappolino V, Pfennig A, Bechdolf A, Meyer-Lindenberg A, Kahl KG, Domschke K, Bauer M, Koutsouleris N, Winter S, Borgwardt S, Bitter I, Balazs J, Czobor P, Unoka Z, Mavridis D, Tsamakis K, Bozikas VP, Tunvirachaisakul C, Maes M, Rungnirundorn T, Supasitthumrong T, Haque A, Brunoni AR, Costardi CG, Schuch FB, Polanczyk G, Luiz JM, Fonseca L, Aparicio LV, Valvassori SS, Nordentoft M, Vendsborg P, Hoffmann SH, Sehli J, Sartorius N, Heuss S, Guinart D, Hamilton J, Kane J, Rubio J, Sand M, Koyanagi A, Solanes A, Andreu-Bernabeu A, Cáceres ASJ, Arango C, Díaz-Caneja CM, Hidalgo-Mazzei D, Vieta E, Gonzalez-Peñas J, Fortea L, Parellada M, Fullana MA, Verdolini N, Andrlíková E, Janků K, Millan MJ, Honciuc M, Moniuszko-Malinowska A, Łoniewski I, Samochowiec J, Kiszkiel Ł, Marlicz M, Sowa P, Marlicz W, Spies G, Stubbs B, Firth J, Sullivan S, Darcin AE, Aksu H, Dilbaz N, Noyan O, Kitazawa M, Kurokawa S, Tazawa Y, Anselmi A, Cracco C, Machado AI, Estrade N, De Leo D, Curtis J, Berk M, Carvalho AF, Ward P, Teasdale S, Rosenbaum S, Marx W, Horodnic AV, Oprea L, Alexinschi O, Ifteni P, Turliuc S, Ciuhodaru T, Bolos A, Matei V, Nieman DH, Sommer I, van Os J, van Amelsvoort T, Sun CF, Guu TW, Jiao C, Zhang J, Fan J, Zou L, Yu X, Chi X, de Timary P, van Winkel R, Ng B, Peña de León E, Arellano R, Roman R, Sanchez T, Movina L, Morgado P, Brissos S, Aizberg O, Mosina A, Krinitski D, Mugisha J, Sadeghi-Bahmani D, Sheybani F, Sadeghi M, Hadi S, Brand S, Errazuriz A, Crossley N, Ristic DI, López-Jaramillo C, Efthymiou D, Kuttichira P, Kallivayalil RA, Javed A, Afridi MI, James B, Seb-Akahomen OJ, Fiedorowicz J, Daskalakis J, Yatham LN, Yang L, Okasha T, Dahdouh A, Tiihonen J, Shin JI, Lee J, Mhalla A, Gaha L, Brahim T, Altynbekov K, Negay N, Nurmagambetova S, Jamei YA, Weiser M, Correll CU

Psychiatry research2024

DOI: 10.1016/j.psychres.2024.115972 PMID: 39305825

Association between non-medical cannabis legalization and emergency department visits for cannabis-induced psychosis.

Myran DT, Pugliese M, Roberts RL, Solmi M, Perlman CM, Fiedorowicz J, Tanuseputro P, Anderson KK

Molecular psychiatry2023

DOI: 10.1038/s41380-023-02185-x PMID: 37500826

Profile data last refreshed on September 26, 2026 from the university directory, publication records and CIHR, NSERC and SSHRC funding.

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Jess Fiedorowicz

Research

Latest papers

Latest funding

Well-being differences and changes in people with somatic and psychiatric disorders or multimorbidities: modelling COVID-19 as a global natural experiment of stress vulnerability.

First-episode psychosis and substance use involvement across birth cohorts in Canada: a retrospective longitudinal population-based study.

Mental health, coping and related risk factors during the first 2 years of the COVID-19 pandemic in children: Nationally representative, multi-wave, cross-sectional results from 12 countries from the global COH-FIT study.

Considerations in the development of learning health networks for mood disorders.

Efficacy, all-cause discontinuation, and safety of serotonergic psychedelics and MDMA to treat mental disorders: A living systematic review with meta-analysis.

Collaborative Outcomes Study on Health and Functioning During Infection Times (COH-FIT): Global and Risk-Group Stratified Course of Well-Being and Mental Health During the COVID-19 Pandemic in Adolescents.

Characteristics of people with bipolar disorder I with and without auditory verbal hallucinations.

Collaborative outcomes study on health and functioning during infection times (COH-FIT): Insights on modifiable and non-modifiable risk and protective factors for wellbeing and mental health during the COVID-19 pandemic from multivariable and network analyses.

Global and risk-group stratified well-being and mental health during the COVID-19 pandemic in adults: Results from the international COH-FIT Study.

Association between non-medical cannabis legalization and emergency department visits for cannabis-induced psychosis.

Advancing the CCBHC by Leveraging Existing Longitudinal Cohorts and Investigating Psilocybin as a Novel Treatment for Cannabis Use Disorder

Metformin for treatment-resistant bipolar depression (TRBD) with co-morbid insulin resistance (IR): A double-blind randomized control trial

Canadian Extension of the Candesartan Adjunctive Bipolar Depression Trial (CADET)

A living systematic review, meta-analysis and dose-response of randomized controlled trials testing serotonergic psychedelics: efficacy, acceptability, tolerability, safety and publication bias within and across health conditions

Describing care and improving outcomes of inpatient psychiatric hospitalizations for individuals with schizophrenia

Cannabis legalization and regulations as a structural driver of youth cannabis harms

Co-designing a living umbrella review platform informing guidelines and care for bipolar disorder

Establishing a Lived Experience Advisory Board to Support Mental Health Research

Mood 'n Heart: intersections between mood disorders and cardiometabolic health.

Psilocybin Assisted Therapy (PAT) for Treatment Resistant Depression in Bipolar II Disorder (TRD.BD-II): A Randomized Controlled Trial

Frequent collaborators

Marco Solmi

Lin Yang

Tracy White

Natalia Jaworska

Ian Colman

Simon Hatcher

David Moher

Peter Tanuseputro

Paul Kurdyak

Mark Kaluzienski