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Faculty profile

Irena Doubelt

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Assistant Clinical Professor (Adjunct)MedicineMcMaster University

Research

Research areas, by share of publications

Research areas are derived from OpenAlex topics of their publications.

18 publications.

01

Effect of vitamin D treatment in ANCA-associated vasculitis: results from an exploratory perspective, pragmatic, non-randomised study.

Basti A, Zgaga L, Doubelt I, Soowamber M, Pagnoux C

Clinical and Experimental Rheumatology2026
DOI: 10.55563/clinexprheumatol/1tgx6e
02

Effect of vitamin D treatment in ANCA-associated vasculitis: results from an exploratory perspective, pragmatic, non-randomised study

Basti A, Zgaga L, Doubelt I, Soowamber M, Pagnoux C

Clinical and Experimental Rheumatology2026
03

New Canadian Data on Vitamin D Status in ANCA-Associated Vasculitis: Baseline Data From an Ongoing Pragmatic Study

Basti A, Doubelt I, Pogue E, Soowamber M, Pagnoux C

Journal of Rheumatology2023
04

Self-Reported Data and Physician-Reported Data in Patients With Eosinophilic Granulomatosis With Polyangiitis: Comparative Analysis

Doubelt I, Springer JM, Kermani TA, Sreih AG, Burroughs C, Cuthbertson D, Carette S, Khalidi NA, Koening CL, Langford C

Interactive Journal of Medical Research20225 citationsFirst authorOpen Access
DOI: 10.2196/27273PMID: W4281481270
05

Vitamin D status in ANCA-associated vasculitis

Doubelt I, Cuthbertson D, Carette S, Khalidi NA, Koening CL, Langford C, McAlear CA, Moreland LW, Monach P, Seo P

Rheumatology Advances in Practice20225 citationsFirst author
DOI: 10.1093/rap/rkad021
06

A PRAgmatic Study of Vitamin D Status in ANCA-associated Vasculitis (PRAVDA): Protocol From the Toronto Vasculitis Clinic

Doubelt I, Pagnoux C

Journal of Rheumatology2022First author
07

Clinical Manifestations and Long‐Term Outcomes of Eosinophilic Granulomatosis With Polyangiitis in North America

Doubelt I, Cuthbertson D, Carette S, Chung SA, Forbess LJ, Khalidi NA, Koening CL, Langford C, McAlear CA, Moreland LW

ACR Open Rheumatology202169 citationsFirst authorOpen Access
DOI: 10.1002/acr2.11263PMID: W3165576202
08

Self-Reported Data and Physician-Reported Data in Patients With Eosinophilic Granulomatosis With Polyangiitis: Comparative Analysis (Preprint)

Doubelt I, Springer JM, Kermani TA, Sreih AG, Burroughs C, Cuthbertson D, Carette S, Khalidi NA, Koening CL, Langford C

2021First author
DOI: 10.2196/preprints.27273
09

Efficacy of conventional immunosuppressants in relapsing or refractory eosinophilic granulomatosis with polyangiitis: evidence from a Canadian single-centre cohort.

Doubelt I, Pulenzas N, Carette S, Pagnoux C

Clinical and Experimental Rheumatology202015 citationsFirst author
10

Efficacy of conventional immunosuppressants in relapsing or refractory eosinophilic granulomatosis with polyangiitis: evidence from a Canadian single-centre cohort

Doubelt I, Pulenzas N, Carette S, Pagnoux C

Clinical and Experimental Rheumatology202014 citationsFirst author

Frequent collaborators

4
Irena DoubeltNader KhalidiMaureen J MacdonaldElahn Peter Lloyd PogueStephanie Atkinson
  • Medicine
  • Office of the Provost
  • Pediatrics

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

Nader Khalidi

Medicine

7 shared papers, latest 2022

Maureen J Macdonald

Office of the Provost

2 shared papers, latest 2016

Stephanie Atkinson

Pediatrics

1 shared papers, latest 2015

Elahn Peter Lloyd Pogue

Medicine

1 shared papers, latest 2023

Write to this professor

A short, specific email works best. This draft uses one of their recent papers; replace the parts in brackets with your own details before sending.

Applying for
Subject: Prospective PhD student: Vasculitis and related conditions Dear Professor Doubelt, 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 "Effect of vitamin D treatment in ANCA-associated vasculitis: results from an exploratory perspective, pragmatic, non-randomised study." (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.] 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]
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Profile data last refreshed on September 25, 2026 from the university directory, OpenAlex and CIHR.

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