top of page


Dr Aran Singanayagam completed his medical qualification at the University of Edinburgh in 2005 achieving distinction in his final examinations alongside a first-class intercalated BSc in Physiology.


Dr Singanayagam carried out rotational medical training in Oxford (John Radcliffe and Churchill Hospitals) before being appointed as a Academic Clinical Fellow in Respiratory Medicine in North-West London in 2009. His specialist respiratory training occurred primarily at St Mary’s, Royal Brompton and Harefield hospitals. During this time, Dr Singanayagam developed a clinical and academic interest in respiratory infections and airway diseases including asthma and COPD. His interest led to a Wellcome Trust clinical research PhD training fellowship in 2011-2014 studying the effects of the commonly used therapies inhaled corticosteroids on the immune response of the lungs to viral and bacterial infections. This work was recognised by the British Thoracic Society investigator award in 2015 and was published in the high-impact journals Nature Communications and Science Translational Medicine.

Dr Singanayagam is a fully qualified Consultant Physician with GMC Registration 6120429.

Dr Singanayagam currently sees both NHS and private patients. He specialises in all aspects of respiratory medicine (any condition or symptom affecting the lungs/breathing). This includes asthma, COPD/emphysema, lung infections (acute and chronic), post COVID19 respiratory problems, bronchiectasis, sleep disorders, pneumonia, tuberculosis and allergic lung disease). As a recognised international expert, Dr Singanayagam is frequently asked to provide second opinions for difficult cases.

In addition to clinical responsibilities, Dr Singanayagam also leads a translational research group which studies the lung's immune system with the aim of developing new therapies for respiratory diseases. Dr Singanayagam has received prestigious investigator awards from the British Thoracic Society (BTS), the European Respiratory Society (ERS) and the Worshipful Society of Apothecaries. He is a member of the BTS Science and Research Committee. He sits on the Editorial Board of American Journal of Respiratory and Critical Care Medicine and European Respiratory Journal and has published over 100 papers to date with a H index of 48. You can browse a full list of Dr Singanayagam's peer-reviewed research publications here.


Dr Singanayagam's research group have recently become interested in studying post-COVID19 lung disease. They published a key paper on this topic in Science Translational Medicine (article available here and press release accessible here). Dr Singanayagam has been awarded >£4million in research funding including a recent ~£1.9million grant by the Medical Research Council to study the role played by viruses in promoting flare-ups of the lung condition bronchiectasis (see press release here)

Dr Singanayagam is internationally recognised as a leading respiratory clinical academic and regularly gives lectures at scientific conferences and provides commentary in the scientific and mainstream media. Examples of some of these commentaries include:

Role of fungi in driving severe COVID - comment in Nature; Lung microbiome in health and disease - webcast for Frontline Genomics.

More information about Dr Singanayagam's research group is available at the laboratory website:

bottom of page