Tamorah Lewis, University of Toronto

Research

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

Latest papers

When Science Outpaces Infrastructure: People, Process, and Technology Challenges for Precision Dosing in Children.
Clinical and translational science · 2026 · first author
Select plasma oxylipins as potential biomarkers of effective indomethacin treatment response in preterm infants with patent ductus arteriosus
Metabolomics · 2026 · senior author
Clinical pharmacology insights from recent cell and gene therapy approvals relevant to pediatrics.
Pediatric research · 2026 · senior author

All 13 publications

Latest funding

Single-dose Prophylactic INdomethacin in extremely preterm infants - A Multicenter Pilot Randomized Blinded Placebo-Controlled Trial (the SPIN Pilot RCT)
CIHR · 2025 · Co-investigator
$600,524
Developmental Pharmacogenetics: Ontogeny of Cytochrome P450 1A2 (CYP1A2) and its Genotype-Phenotype Concordance in Neonatal Caffeine Metabolism
CIHR · 2025 · Supervisor
$120,000
Advancing towards model-informed precision dosing: Development and genetics of commonly used drugs in the Neonatal Intensive Care Unit
CIHR · 2023 · Supervisor
$90,000

All 4 grants and awards

13 publications.

01

When Science Outpaces Infrastructure: People, Process, and Technology Challenges for Precision Dosing in Children.

Lewis T, Jessa K, Ivaturi V, Noack A, Aluthge DP, Müller-Widmann D, Capello K, Fong M, Miatello A, Barwick M

Clinical and translational science2026First authorOpen Access

DOI: 10.1111/cts.70646 PMID: 42318643

02

Select plasma oxylipins as potential biomarkers of effective indomethacin treatment response in preterm infants with patent ductus arteriosus

Khanh C. K. Nguyen, Cindy H. T. Yeung, Allison Scott, Thomas J. Velenosi, Tamorah Rae Lewis

Metabolomics2026Senior authorOpen Access

DOI: 10.1007/s11306-026-02510-9 PMID: 42538509

03

Clinical pharmacology insights from recent cell and gene therapy approvals relevant to pediatrics.

Kunanayagam S, Wang MC, Loucks CM, Garcia-Bournissen F, Verstegen RHJ, Lewis T

Pediatric research2026Senior author

DOI: 10.1038/s41390-026-05138-6 PMID: 42236924

04

Correcting Course: From Race-Based to Race-Conscious Practice in Maternal-Infant Health.

Ondusko DS, Tillman DM, Walker V, Lewis T

Pediatrics2026Senior author

DOI: 10.1542/peds.2026-076070b PMID: 42308265

05

Salivary cortisol is not associated with dexamethasone response in preterm infants with evolving bronchopulmonary dysplasia.

Lewis T, Jensen EA, Courtney S, Slaughter J, Kielt MJ, Iyer NP, Gauldin C, Nitkin C, Yeh HW, Truog W

Journal of perinatology : official journal of the California Perinatal Association2026First author

DOI: 10.1038/s41372-024-02177-x PMID: 39567652

06

Optimizing proton-pump inhibitor therapy in paediatric eosinophilic esophagitis through CYP2C19 pharmacogenetic testing.

Scodellaro S, Bortolin KA, Marcon MA, Verstegen RHJ, Da Silva S, Ito S, Lewis T, Jones NL, Cohn I, Hulst JM

Journal of the Canadian Association of Gastroenterology20256 citationsOpen Access

DOI: 10.1093/jcag/gwaf003 PMID: 40567296

07

Rules of Thumb for Estimating Drug Levels in Breast Milk: How Well Do They Work?

Juliya Gasparyan, Philip O. Anderson, Tamorah Rae Lewis, Cindy H. T. Yeung

Clinical Pharmacology & Therapeutics20253 citationsOpen Access

DOI: 10.1002/cpt.70021 PMID: 40808318

08

The Relationship of Indomethacin Exposure With Efficacy and Renal Toxicity Outcomes for Preterm Infants in the Neonatal Intensive Care Unit.

Yeung CHT, Sekulich DC, Scott A, Nolte WM, Gibson K, Su R, Alrifai MW, Lopata SM, Lewis T, Reese J, Maharaj A

Clinical and translational science20253 citationsOpen Access

DOI: 10.1111/cts.70251 PMID: 40396766

09

Pediatric pharmacogenetics in the community: a future where all children benefit from personalized therapeutics.

Lewis T, Stone CD, Ramsey L

Pediatric research2025First author

DOI: 10.1038/s41390-025-04213-8 PMID: 40542089

10

A call for increased inclusivity and global representation in pharmacogenetic testing

April Kennedy, Gabriel Ma, Roozbeh Manshaei, Rebekah Jobling, Raymond H. Kim, Tamorah Rae Lewis, Iris Cohn

npj Genomic Medicine20246 citationsOpen Access

DOI: 10.1038/s41525-024-00403-1 PMID: 38388691

Single-dose Prophylactic INdomethacin in extremely preterm infants - A Multicenter Pilot Randomized Blinded Placebo-Controlled Trial (the SPIN Pilot RCT)

Co-investigatorCIHR2025Project Grant

Principal investigators: Mitra, Souvik; Schmoelzer, Georg

Keywords: Extremely Preterm Infant; Prophylactic Indomethacin; Randomized Controlled Trial; Severe Intraventricular Hemorrhage

$600,524

Developmental Pharmacogenetics: Ontogeny of Cytochrome P450 1A2 (CYP1A2) and its Genotype-Phenotype Concordance in Neonatal Caffeine Metabolism

SupervisorCIHR2025DRA : Canada Graduate Research Scholarship - Doctoral Program (CGRS D)

Principal investigators: Wang, Michelle C

Keywords: Biomarker; Dna Microarray; Drug Metabolism; Mass Spectrometry; Neonate; Pharmacogenetic; Pharmacokinetic; Precision Drug Dosing; Translational Medicine

$120,000

Advancing towards model-informed precision dosing: Development and genetics of commonly used drugs in the Neonatal Intensive Care Unit

SupervisorCIHR2023CIHR Fellowship

Principal investigators: Yeung, Cindy

Keywords: Development; Genetics; Model-Informed Precision Dosing; Neonatal Intensive Care Unit; Neonates; Pharmacokinetics; Physiologically Based Pharmacokinetic Modeling; Population Pharmacokinetic Modeling; Precision Medicine

$90,000

RareKids-CAN: Pediatric Rare Disease Clinical Trials and Treatment Network

Principal investigatorCIHR2023Team Grant: Pediatric Rare Disease Clinical Network

Principal investigators: Lacaze-Masmonteil, Thierry; Anagnostou, Evdokia; Baribeau, Danielle A; Batthish, Michelle; Bernard, Geneviève; Bernier, Francois P; Butcher, Nancy J; Campbell, Craig Gordon N; Cross, Andrea; Dyack, Sarah; Gantt, Soren M; Gravel, Christopher; Haddad, Elie; Heath, Anna; Kelly, Lauren; King, Alexandra; Klassen, Terry P; Knisley, Lisa; Lai, Meng-Chuan; Lewis, Tamorah R; Marwaha, Ashish K; McBride, Kim; Mitchell, John J; Moore Hepburn, Charlotte; Mooser, Vincent E; Myers, Kenneth A; Offringa, Martin; Oskoui, Maryam; Portales-Casamar, Elodie; Pot, Sara; Potter, Elizabeth K; Richer, Lawrence P; Round, Jeff; Stewart, Breanne; Subbarao, Padmaja; Thebaud, Bernard; Turvey, Stuart E; Ward, Leanne M; Wong-Rieger, Durhane; Wright, Nicola A; Yeh, Ann E.

Keywords: Child Health; Data Science; Drug Development; Paediatric Clinical Research Units; Paediatric Clinical Trials; Patient And Public Involvement; Patient Registries; Precision Medicine; Rare Diseases; Real-World Evidence

$19,999,843

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.

Frequent collaborators

Department of Paediatrics
Department of Medicine
Department of Pharmacology and Toxicology
Pharmacy
Pharmaceutical Sciences
Department of Nutritional Sciences
Department of Psychiatry
Other

Co-authors at University of Toronto, colored by department. Thicker lines mean more shared papers; select anyone to open their profile and their own map.

Cindy Yeung

Pharmacy

3 shared papers, latest 2026

Iris Cohn

Department of Paediatrics

2 shared papers, latest 2025

Raymond Kim

Department of Medicine

1 shared papers, latest 2024

Jessie Hulst

Department of Nutritional Sciences

1 shared papers, latest 2025

Melanie Barwick

Department of Psychiatry

1 shared papers, latest 2026

Shinya Ito

Department of Medicine

1 shared papers, latest 2025

Michael Rieder

Department of Paediatrics

1 shared papers, latest 2023

Anil Maharaj

Pharmaceutical Sciences

1 shared papers, latest 2025

Thomas Velenosi

Pharmsci

1 shared papers, latest 2026

Ronald Cohn

Department of Molecular Genetics

1 shared papers, latest 2023

Write to this professor

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Applying for

Paper to mentionMention their CIHR grant from 2023

Subject: Prospective PhD student Dear Professor Lewis, My name is [your name], and I am a [your current degree or role] at [your institution]. I am applying for a PhD position starting in [term and year]. I read your paper "When Science Outpaces Infrastructure: People, Process, and Technology Challenges for Precision Dosing in Children." (2026), and it connects closely to my own work on [your research topic]. [One or two sentences on what you did and what you learned.] I also saw your CIHR-funded project "RareKids-CAN: Pediatric Rare Disease Clinical Trials and Treatment Network" (2023), and I would be glad to contribute to work in that direction. Are you accepting new PhD students for [term and year]? I have attached my CV and transcripts, and I would be glad to talk at a time that suits you. Thank you for your time. Kind regards, [your name]