Felix Ratjen
Chief, Division of Paediatric Respiratory Medicine


Research Interests: Dr. Felix Ratjen's research aims to conduct clinically relevant studies that have a direct impact on patient's lives. The Cystic Fibrosis Clinical Research team is a multidisciplinary group of scientists, respiratory therapists, nurses, statisticians and research staff who work together to conduct interventional and observational studies. The Ratjen Lab's research at SickKids focuses on evaluating novel treatments, designing new ways to conduct research and investigating how we can better measure and monitor lung function in young children.

Bio Brief

Dr. Felix Ratjen is the Division Chief of Paediatric Respiratory Medicine at The Hospital for Sick Children (SickKids) and Professor of Paediatrics at the University of Toronto. He is also Program Head and Senior Scientist in the Translational Medicine research program at SickKids Research Institute. He is co-leading the CF Centre at SickKids with Christine Bear, another Senior Scientist in the Molecular Medicine Program. Dr. Ratjen completed a majority of his medical education in Germany, along with a research fellowship at the Children's Hospital in Boston. He subsequently worked at the University of Essen, where he was appointed Deputy Chief of the Department of Paediatrics in 1998 and Professor of Paediatrics in 2001. Until 2005 he was the chief executive of the scientific board of the German CF foundation before relocating in Canada in the same year. He also is involved in the organizing committees of the major respiratory meetings (American Thoracic Society, European Respiratory Society and the North American CF conference), works on multiple grant review panels is a member of the several editorial boards including the American Journal of Respiratory and Critical Care Medicine, Thorax, Pediatric Pulmonology Lancet Respiratory Medicine and the Journal of Cystic Fibrosis.

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