College of Medicine


Donald W. Cockcroft, M.D., F.R.C.P.(C) is a Professor in the Division of Respirology, Critical Care and Sleep Medicine, Department of Medicine, at the University of Saskatchewan. 

Training includes MD, 1970, University of British Columbia; Internal Medicine, Royal Victoria Hospital, Montreal; Clinical Allergy Training, 1973-1974, Royal Victoria Hospital, Montreal; Clinical Respiratory Training, 1974-1975, St. Paul’s Hospital, Vancouver; Respiratory and Allergy (Asthma) research 1975 to 1977 with Freddy Hargreave, McMaster University, Hamilton.  He has been on faculty at the University of Saskatchewan since 1977.  Research interests focus on clinical investigations in asthma, primarily bronchoprovocation with methacholine and other nonallergic stimuli, and the development and use of the allergen challenge model for investigating both the pathophysiology of asthma and new drugs for asthma.

He is a Fellow of the American Academy of Asthma, Allergy and Immunology, the American College of Allergy, Asthma and Immunology, and the American College of Chest Physicians.  Dr. Cockcroft is a Past-President of the Canadian Thoracic Society and a former Head of the Division of Respirology, Critical Care and Sleep Medicine.

Dr. Cockcroft has co-authored in excess of 100 book chapters/review articles, more than 280 peer-reviewed research papers, and has presented approximately 300 invited lectures at regional, national and international meetings. He also grows prize-winning lillies. 

1967 BSc, University of British Columbia, Chemistry.
1970 MD, University of British Columbia.
1975 FRCPC, Royal College of Physicians and Surgeons of Canada, Internal Medicine.


University Appointments
1977-07-01 to 1980-06-30 Assistant Professor, Department of Medicine, University of Saskatchewan, Saskatoon
1980-07-01 to 1984-03-31 Associate Professor, Department of Medicine, University of Saskatchewan, Saskatoon
1984-04-01 to current Professor, Department of Medicine, University of Saskatchewan, Saskatoon (Comment: Tenured July 1, 1985)

Recent Teaching Record


  • MEDC123.8, Clinical Skills II
  • MEDC126.18, Foundations in Clin Med I
  • MEDC126.18, Foundations in Clin Med I


  • RESP SYS205.10, Respiratory Systems- Med II
  • RESP SYS205.10, Respiratory Systems- Med II
  • PROF SKL204.20, Professional Skills-Med II
  • PHS1898., Masters Level 3 SPECIAL TOPIC (Comment: "Allergen-induced asthma: pathophysiology, research methods, and novel therapeutics", S. Nomani & M Rymerson)
  • MEDC126.18, Foundations in Clin Med I

Clinical Interests

  • Asthma
  • Cystic Fibrosis
  • General Respirology

Selected Publications

  • Cockcroft DW. Giants in Allergy-Immunology: Frederick E. "Freddy" Hargreave, MB, ChB, MD. Annals of Allergy, Asthma and Immunology. 2016;116(4):271- 273.
  • Nomani S, Cockcroft DW, Davis B. Allergen inhalation challenge, refractoriness and the effects of ibuprofen. Allergy, Asthma and Clinical Immunology. 2016;12:24.
  • Boulet L-P, Gauvreau GM, Cockcroft DW, Davis B, Vachon L, Cormier Y, O'Byrne PM. Effects of ASM-024, a modulator of acetylcholine receptor function, on airway responsiveness and allergen-induced responses in patients with mild asthma. Canadian Respiratory Journal. 2015;22:230-234.
  • Cockcroft DW. Respiratory Medicine in Saskatchewan: An historical perspective. Canadian Respiratory Journal. 2015;22(4):197-198.
  • Dvorak LA, Vassallo R, Kirmani S, Johnson G, Hartman TE, Tazelaar HD, Leslie KO, Colby TV, Cockcroft DW, Churg AM, Yi ES. Pulmonary fibrosis in dyskeratosis congenita: report of two cases. Human Pathology. 2015;46:147-152.
  • Cockcroft DW. Methacholine challenge. PD20 versus PC20. Annals of the American Thoracic Society. 2015;12:291-292.
  • Cockcroft DW, Davis BE, Roh Y, Lourens J-A. Effect of ingested H1-antihistamines on methacholine challenge. Journal of Allergy and Clinical Immunology. 2015;135:579-580.
  • El-Gammal A, Killian KJ, Scime TX, Beaudin S, Schlatman A, Cockcroft DW, Gauvreau GM. Comparison of the methacholine PC20 between the AeroEclipse II Ban nebuliser and the Wright nebuliser in adult asthmatic subjects. Annals of the American Thoracic Society; 2015 (epub April 14). 2015.
  • Boulet L-P, Gauvreau G, Boulay M-E, O'Byrne P, Cockcroft D. Allergen-induced early and late asthmatic responses to inhaled seasonal and perennial allergens. Clinical and Experimental Allergy. 2015;45(11):1847- 1853.
  • Davis BE, Amakye DO, Cockcroft DW. Airway responsiveness to mannitol 24 hours after allergen challenge in atopic asthmatics. Allergy. 2015;70(6):682- 688.
  • Comment: D. Amakye MSc study, Impact Factor 6.0
  • Chu L, Rennie D, Cockcroft D, Pahwa P, Dosman J, Hagel L, Karunanayake C, Lawson J. Agreement between questionnaire report of allergy-related outcomes in school-age children and objective measures of atopy: The Saskatchewan Rural Health Study. Clinical & Experimental Allergy. 2015;45(8):1337-1345.
  • Gauvreau GM, Boulet L-P, Leigh R, Cockcroft DW, Killian KJ, Davis BE, Deschesnes F, Watson RM, Swystun V, Wessman P, Jorup C, Aurivillius M, O'Byrne PM. A non-steroidal glucocorticoid receptor agonist inhibits allergen-induced late asthmatic responses. American Journal of Respiratory and Critical Care Medicine. 2015;191:161-167.
  • Olfert J, Gjevre J, Cockcroft DW. A non-allergic mechanism for nut induced wheeze. Journal of Allergy and Clinical Immunology in Practice. 2015;3:108-109.
  • Nataraj RTY, Fladeland DA, Cockcroft DW. The necessity of histology. Respiratory Care. 2015;60:e17-19.