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TAMARATT is Calgary’s largest respiratory research center. Their mission is to advance scientific and clinical knowledge in respiratory medicine. They accomplish this through excellence in clinical research and provide detailed clinical assessments and cutting edge therapies. 


Common Cold Research

We are the only research centre in Canada authorized by Health Canada to store and use human rhinovirus 39 for human research.

Call us at 220-2123 or email to see if you qualify.


We have a number of COPD studies ongoing. Call us at 220-2123 or email to see if you qualify.

Allergic Asthma Research

We are part of the AllerGEN Clinical Investigator Collaborative. We study Asthmatics who have associated allergies.

Call us at 220-2123 or email to see if you qualify.


We are Calgary's premier Asthma research centre for adults. We have a number of Asthma studies ongoing. Call us at 220-2123 or email to see if you qualify.

Core Personnel


Dr. Robert (Bob) Cowie

His research interests within the RCTC are in Asthma and COPD.

Dr. Stephen Field

Dr. Stephen Field has remained active in clinical research since joining the faculty at the University of Calgary. He has published research in high profile peer-reviewed journals including the American Journal of Respiratory and Critical Care Medicine, Chest, Journal of Applied Physiology, and the Annals of Internal medicine. He co-founded the Calgary COPD and Asthma Program which has promoted investigator- and industry-sponsored asthma and COPD research since 1991. He has participated in CIHR-sponsored multicentre asthma, respiratory infection, and COPD trials. In 2006, he was awarded competitive funding and established a Chronic Cough Clinic which has expedited and improved the care of chronic cough patients. His next goal is to establish a clinic to improve the care of ill, exacerbation-prone individuals with severe COPD.

Dr. Richard Leigh

Dr. Richard Leigh is the director of the RCTC. His research interests within the RCTC are in Asthma, COPD, and Human Rhinovirus.

Dr. Brandie Walker

Her research interests within the RCTC are in Asthma and COPD.

Clinical Research Associates and Support Staff

Curtis Dumonceaux

Curtis Dumonceaux has worked as a Registered Respiratory Therapist since 1998. He is a registered member of numerous research and professional respiratory societies. He has certifications in Advanced Cardiac Life Support, phlebotomy, and IV therapy.

Tempest Emery

Tempest Emery has worked as an Administrative Assistant for the RCTC since 2008. She acts as a liaison between our various study sponsors and the Conjoint Health Research Ethics Board and coordinates all regulatory aspects of our research. Tempest holds a Bachelor of Arts (Honours) in English, a Bachelor of Arts in Psychology, and is currently completing a Master of Arts program in English.

Linda Knox (unphotographed)

Linda Knox is a Registered Nurse with extensive experience working with critically ill adults and children. She is currently completing the Respiratory Educator course. Linda is interested in working with clinical trials to help people with Asthma and COPD.

Jennifer O'Hara, PhD (unphotographed)

Lisette Machado (unphotographed)

Lisette Machado is a foreign-trained physician with experience in Asthma and Allergy clinical trials in the pediatric population who recently joined our research team as a Clinical Research Coordinator.

Stephanie The

Stephanie The holds a Bachelors of Science in Biology and Mathematical Sciences. She has worked as a Research Associate for the RCTC since 2012. Stephanie is a licensed cytotechnologist and has certification in phlebotomy.

The Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases was named in 2008 in honour of Joan Snyder and her parents, who she credits for teaching her the value of philanthropy. It is a group of more than 104 clinicians, clinician-scientists and basic scientists who are impacting and changing the lives of people suffering from chronic diseases, including sepsis, MRSA, cystic fibrosis, type-1 diabetes, inflammatory bowel disease, and chronic obstructive pulmonary disease. For more information on the Snyder Institute for Chronic Diseases, please visit us at or follow us on Twitter @SnyderInstitute.