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Research led by Professor Shields and colleagues at Queen's University Belfast has resulted in changes in the treatment of children with cough and wheezing disorders and has been a major contributor to International Asthma and Cough Guideline statements.
Wheezing affects up to one third of children. Research studies that demonstrated that viral induced wheezing (VIW) or isolated cough were not associated with persistent airway inflammation led to a change in recommendations for anti-asthma therapy, such that the use of high dose inhaled corticosteroids (ICS) was no longer recommended in such cases. Furthermore, the dangers of very high dose ICS were better recognized and the upper recommended dose of steroids for use in treatment of classical childhood asthma was reduced accordingly.
Heaney's research at Queen's University Belfast on difficult-to-treat asthma (or simply "difficult asthma"— DA) patients has led to changes in clinical management guidelines and a drive to co-ordinate and commission specialist services nationally for DA patients. It has also led to the establishment of a UK Multi-centre National Clinical Network and Patient Registry (Centres listed in Section 5). DA patients have persistent symptoms and frequent exacerbations despite being on high dose asthma therapy. DA patients (10% of the asthmatic population) have significant morbidity and carry a high risk of asthma death. Their clinical assessment has been optimised to ensure proper management of both their asthma and non-asthma related conditions.
Ongoing research by the University of Southampton has led to significant advances in the understanding of respiratory diseases, for which the dearth of available treatments had health repercussions on a global scale for many years. The formation of a spin-out company, Synairgen, has enabled the discovery and development of new therapeutics, the filing of several major patents in the UK, the US and Asia and external collaborations with industry and government funders. These continuing developments are key to tackling conditions that affect millions of sufferers in the UK alone and which, according to some estimates, cost the NHS £2.6bn every year. The research has given rise to more than £16m in follow-on funding from the NIHR and the MRC for further studies into the treatment of respiratory illnesses.
Asthma and Chronic Obstructive Pulmonary Disease (COPD) are common, global diseases which cause considerable morbidity and mortality. Worldwide, around 235 million people suffer from asthma, while COPD accounts for 3 million, or 5% of all, global deaths, according to the World Health Organization (WHO). The relationship between inflammation and airway dysfunction is central to an understanding of their pathogenesis and treatment. The respiratory medicine group in the Department of Infection, Immunity and Inflammation has shown that optimal management of these conditions requires measurement of airway inflammation to stratify treatment regimes, an approach incorporated into national guidelines in 2012. In the late 1990s the group characterised a new clinical syndrome: `eosinophilic bronchitis', which is one of the commonest causes of chronic cough. The group's work has helped to launch a new class of drugs for asthma and to change the conceptual framework by which anti-inflammatory drugs for asthma are being developed.
Research at the University of Manchester (UoM) has led a step-change in respiratory care for airway disease from oral to novel inhaled therapies targeted at asthma and chronic obstructive pulmonary disease (COPD) patients worldwide. UoM researchers carried out >250 studies, partnered industry to deliver >15 new inhaled drug formulations to market and were the first to test novel CFC-free inhalers. UoM led the development of global guidelines that influence better diagnosis and management of airways diseases. Through leadership within the Montreal Protocol since 1995, UoM researchers coordinated the safe global transition to CFC-free inhalers for ~200m patients with asthma and COPD, whilst protecting the ozone layer and climate.
Imperial College researchers demonstrated that the risk of occupational asthma is related directly to the level of exposure in the workplace and not, as previously thought, to host susceptibility. These findings directly informed UK government and industry policy with a consequent reduction in disease incidence.
King's College London (KCL) research has revealed that children who eat peanuts in infancy have a lower risk of peanut allergy than those who do not. This finding, and the associated research, has had significant national and international impact, as it led to a marked change in UK, European and American guidelines, such that they no longer discourage the introduction of peanuts to the infant diet. High profile coverage in scientific, government and lay press has widely disseminated this information.
An additional impact of the work was the development of the KCL Allergy Academy. This has become a large educational programme which each year reaches more than 1000 healthcare practitioners, plus patients and parents.
In 1994, Professor Barnes and colleagues at Imperial College showed that nitric oxide (NO) concentrations were increased in the breath of asthmatic patients compared to non-asthmatic controls and were reduced after treatment with inhaled steroids. They subsequently demonstrated that exhaled NO (FENO) could be reliably measured in the clinic, was correlated with eosinophilic airway inflammation in asthma, was increased with airway inflammation and decreased when asthma was controlled. Exhaled NO has subsequently been shown by many investigators to be a useful non-invasive biomarker of airway inflammation in asthma and to improve clinical management in selected patients. They demonstrated that nasal NO is very low in patients with primary ciliary dyskinesia and is now recommended worldwide as a diagnostic test for this disease as it is a much easier method than previously available tests.
Southampton research has been central to the development and international licensing of one of only two novel asthma therapies in the last 30 years, transforming asthma control and survival for severe allergic asthmatics.
Key studies by the Southampton Group have underpinned the development of immunoglobulin (Ig)-E as a key therapeutic target for controlling allergic asthma, with the Southampton-led first-in- man safety and efficacy trials critical to the registration of the anti-IgE therapy, omalizumab.
This contribution also generated significant inward investment in UK R&D and opened up wider investigation of anti-IgE therapy in a broad range of atopic and inflammatory indications.
Atopic eczema and associated conditions — asthma, food allergy and hay fever — affect ~40% of the population in developed nations. They cause significant morbidity and create a multibillion-pound global healthcare burden. The discovery that loss-of-function mutations in the gene encoding filaggrin represent a strong risk factor for eczema, asthma and peanut allergy has defined a key pathological mechanism in atopic disease. This breakthrough in understanding has brought new focus on the skin barrier. It has shown impact in treatment approaches to maintain barrier function, translational research targeting epithelial dysfunction and improved public and professional awareness of the role of skin in atopic disease.