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Research conducted at King's College London into the mechanisms underlying hypoglycaemia unawareness in type 1 diabetes mellitus (T1DM) and novel technology for reducing the risk of hypoglycaemia has led directly to innovative changes in the management of diabetes. These include UK and worldwide development and dissemination of the government-recommended `Dose Adjustment for Normal Eating' (DAFNE) programme and on-going development of continuous subcutaneous insulin infusion (pump) therapy, now used by over 18,500 people with T1DM in the UK.
Dr Lloyd's research examines the relationship between diabetes and mental health, particularly in under-served or marginalised communities. Through extensive international collaborations research findings have been disseminated to a wide audience. Locally, service users have been involved in the development of alternative ways of obtaining informed consent, to allow greater research inclusivity. Culturally appropriate tools, for identifying depressive symptoms as well as knowledge deficits in diabetes self-care, have been designed and tested. As a result, a psychotherapy service for people with co-morbid diabetes and psychological problems has been successfully established in a diabetes centre attended by more than 6,000 individuals.
The University of Oxford's United Kingdom Prospective Diabetes Study (UKPDS) was a landmark 30-year clinical trial, reported in over 80 academic research papers between 1983 and 2008. It showed beyond doubt that diabetic complications, previously thought to be inevitable consequences of the condition, could be delayed or prevented by improved treatment from the time of diagnosis. These findings have had a profound influence on the management of type 2 diabetes, clinical guidelines, and standards of care, and have reduced diabetes-related complications worldwide, lowering the incidence of blindness, kidney failure, amputation, heart attack and stroke.
The work of IDOP has resulted in:
Around 2.5 million people in the UK have Type 2 diabetes, with many more in a pre-diabetic state, Both conditions are hard to detect and frequently remain undiagnosed and untreated for years. The cost burden to the NHS of eventual treatment is estimated at £10 billion; 80% of which is spent on complications that are, with good care, avoidable. Targeted diabetes prevention programmes could aid in prevalence reduction and associated costs. Leicester's Diabetes Research Centre has developed two risk scores, both suitable for use with an ethnically diverse UK population, to detect these conditions: a self-assessment questionnaire and a general practice database tool. Recommended by NICE, they have been used successfully in varied settings. Since July 2011, around 260,000 people have completed the self-assessment score online and more than 40,000 through other means.
Elevated blood glucose levels — the hallmark of diabetes — is estimated by the World Health Organization to be the third leading cause of premature death globally. Around 4 million people in the UK have been diagnosed with diabetes; their treatment accounts for 10% (£10 billion) of NHS expenditure. Self-management strategies and the promotion of a healthy lifestyle are fundamental to the treatment and prevention of type 2 diabetes (T2DM). Since 2008, Leicester's Diabetes Research Centre has developed, evaluated, disseminated and implemented a range of programmes based on a technique called structured education. The flagship DESMOND programme is run in over half of all clinical commissioning groups (CCGs), affecting thousands of people with newly diagnosed T2DM. The Walking Away prevention programme has been widely implemented in the UK, Ireland and Australia. These programmes are the only nationally available evidence-based structured education programmes for the prevention and management of T2DM.
It is now widely recognised that the evaluation of treatments for chronic conditions needs to consider impacts on quality of life as well as quality of health. Research in the Health Psychology Research Unit since 2011, and for over 20 years previously in the Department of Psychology at Royal Holloway, has generated a series of Patient-Reported Outcome Measures (PROMs) validated in over 100 languages. These PROMs have been used by every major pharmaceutical company in the world to measure the impact of new treatments on quality of life and other patient reported outcomes, and have delivered major benefits to people with diabetes and other long-term medical conditions. These PROMs have also delivered substantial economic and commercial impacts through cost-saving in the NHS, licence fee income raised through the spin-off company Health Psychology Research (HPR) Ltd, and contributions to the development of best-selling drugs.
King's College London (KCL) researchers were the first to identify that an early sign of diabetic kidney disease was the presence of albumin in the urine, a condition known as albuminuria. Building on this finding, the KCL Unit of Metabolic Medicine designed and led in-house, national then international randomised controlled clinical trials with the aim of preserving kidney function in diabetic patients. Ultimately, KCL research established that several drug inhibitors of the renin-angiotensin-aldosterone system (RAAS) can control albuminuria, slow the deterioration of kidney function and significantly extend survival rates in diabetic patients. These drugs are now generically available, and their prescription is recommended by current international clinical guidelines across North America, Europe, Australia and Asia. This shows major impact in terms of reach and significance.
The use of a formulary to influence prescribing practice is common, with almost all hospitals possessing one that attempts to provide advice on the safe, effective and economic use of medicines. The Maudsley Prescribing Guidelines to Psychiatry steps beyond the function of a mere formulary and provides evidence-based guidance on the use of psychotropic medicines that influences prescribing on both a national and international basis. Now in its 11th Edition and translated into nine languages, much of the evidence in The Guidelines is generated by King's College London research. Additionally, this research is used in other guidelines, in clinical handbooks and in prescribing practices around the world.
Research led by Pardhan has enhanced the healthcare offered to diabetic patients of South Asian origin in the UK and overseas (Pakistan, East Africa). Prevalence of diabetes within this ethnic group is six times higher than in Caucasians. Our research into this group, which demonstrated an increased risk of sight-threatening eye disease and poor engagement with screening/treatment regimes, has impacted upon both patients and healthcare practitioners. Ophthalmologists, general practitioners and other clinicians have used our findings to target various physiological and cultural factors that influence diabetic control and eye health in the South Asian population.
Our research also provided the underpinning data that informed reports commissioned by the Royal National Institute of Blind People (RNIB). These reports demonstrate the increased prevalence of eye problems in patients of South Asian origin, and highlight the barriers that affect patients' access to primary and secondary eye-care across the UK. The reports evaluate the effectiveness of current management, and suggest strategies to improve the eye health of this group of patients.
These reports have led directly to the creation of dedicated community-based eye-care programmes. Funded by the Royal National Institute of Blind People (£400,000) and Innovation, Excellence and Strategic Development Fund (Department of Health), the programmes are designed to reduce diabetic-related complications through improved self care by patients in Bradford and Glasgow, regions that have significant Asian diabetic populations.