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- The University of Hull
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- Submitting institution
- The University of Hull
- Unit of assessment
- 3 - Allied Health Professions, Dentistry, Nursing and Pharmacy
- Summary impact type
- Societal
- Is this case study continued from a case study submitted in 2014?
- No
1. Summary of the impact
The impacts from the Hull team have transformed thinking around ‘challenging behaviour’ in dementia, from its association with pathology, to that of a clinically-defined marker of distress. Researchers have systematically captured the care-gap associated with behavioural changes in dementia by: rigorously defining ‘Challenging Behaviour’; developing personalised psychosocial and health intervention tool-kits for recognition and management. The programme provides health and social care professionals with alternatives to potentially harmful drugs for managing distress, thus benefiting both people with dementia and their families. Furthermore, Hull’s research has led to a change in public perceptions of dementia from challenging behaviour to a care-need that requires multi-professional support and intervention.
2. Underpinning research
Before 2000, the most costly and burdensome aspects of dementia, that is, behavioural changes such as agitation and aggression, occurring in 90% of cases, were diagnosed as ‘Behavioural and Psychological Symptoms of Dementia’ (BPSD). This neuropathological assumption about causation resulted in psychotropic management, which had limited efficacy and additionally raised serious concerns about risks of morbidity and mortality among people diagnosed with dementia. Work from the University of Hull (UoH) shifted BPSD research, towards psychosocial diagnostics and interventions for common behavioural care-challenges, defined as ‘Challenging Behaviour’ - and over two decades ago, launched the highly influential, international, multidisciplinary psychosocial dementia care research network for ‘early detection and timely INTERvention of DEMentia’ (see INTERDEM). In September 2020 the organisation had > 230 members (academics and clinicians) from 23 countries, and supported an academy of >200 PhD and early career researchers. INTERDEM has placed the psychosocial needs of people with dementia and their relatives on the international research agenda.
The multidisciplinary Dementia Research Group at UoH (Professors Moniz-Cook, Clinical Psychologist; Campion, GP; Markova, Psychiatrist; and Dr Hilton, Pharmacist) led the UK-wide research programme ‘ Challenge Demcare’ ( Ref1); Moniz-Cook and Wolverson (Clinical Psychologist) disseminated best practice across the NHS, social care and voluntary sectors.
Key research findings
Personalising care beyond ‘symptom-management’
At the end of the 1990s, the Hull team discovered that behavioural changes in dementia were influenced by staff understandings, emotional states and related responses to the care-recipient ( Ref2). This shifted research away from BPSD symptom-management to a focus on staff training, showing that behavioural care-challenges in care homes, later defined as Challenging Behaviour (CB), could be successfully resolved ( Ref1). Through systematic assessment of the idiosyncratic psychosocial causes of CB, safe personalised interventions were demonstrated ( Ref3). In 6 months, the Hull clinical team led by Moniz-Cook successfully resolved 98% of care home referrals. Then, through training community mental health nurses, the efficacy of personalised psychosocial approaches for CB in family care was demonstrated, in the UK’s first randomised controlled trial ( Ref4). Finally, an implementation research programme ‘ Challenge Demcare’ up-scaled this work for ‘wider reach’, by developing and testing evidence-based, providing interactive e-learning and decision-support interventions for CB, bespoke to care homes and family settings. This technology provided standardised, but personalised, ‘action-plans’ for health (medication review / lifestyle management) and psychosocial unmet needs of patients. In addition, given our knowledge of how families’ and care-staff perception of behaviour can influence rates of CB ( Ref5 & Ref2), the technology provides bespoke guidance for specialist dementia teams on how to support the differing needs of families and care homes. Implementation involved reviewing 2,386 residents from 63 care homes for clinically significant CB, and 5,360 consecutive family referrals to 33 specialist mental health teams across England ( Ref1).
Improving CB in dementia care
The work reported in Challenge Demcare ( Ref1) demonstrated that:
Specialist mental health services fail to recognise all clinically significant CB in dementia, particularly for families referred by the GP, i.e. CB is either ‘hidden’ or unresolved by specialist teams ( Ref6).
Higher levels of CB were recorded in families than was expected; as 60% of home-dwelling people with mild dementia have clinically significant CB.
Care home staff appreciate CB-specific e-learning, but efficacious personalised intervention for clinically significant CB requires additional multidisciplinary-based support, particularly for sub-optimal prescriptions of psychotropic drugs.
Smaller ‘non-hierarchically managed’ care homes compared with large organisations, show greater readiness to engage with novel support programmes.
3. References to the research
Ref 1. Moniz-Cook E, Hart C, Woods B, Whitaker C, James I, Russell I, et al. (2017) Challenge Demcare: Management of challenging behaviour in dementia at home and in care homes. Programme Grants Appl Res 5(15)
Ref 2. Moniz-Cook E, Woods R & Gardiner E. (2000) Staff factors associated with perception of behaviour as 'challenging' in residential and nursing homes. Aging & Mental Health 4,1,48-55
Ref 3. Moniz‐Cook E, Stokes G & Agar S. (2003) Difficult behaviour and dementia in nursing homes: five cases of psychosocial intervention. Clinical Psychology & Psychotherapy 10,197-08
Ref 4. Moniz-Cook E, Elston C, Gardiner E, Agar S, Silver M, Win T & Wang M. (2008) Can training Community Mental Health Nurses to support family carers reduce behavioural problems in dementia? An exploratory pragmatic randomised controlled trial. International Journal of Geriatric Psychiatry 23, 2, 185-91
Ref 5. Feast A, Orrell M, Charlesworth G, Melunsky N, Poland F & Moniz-Cook E. (2016) Behavioural and psychological symptoms in dementia and the challenges for family carers: Systematic review. British Journal of Psychiatry 208,5, 429-34
Ref 6. Manthorpe J, Hart C, Watts S, Goudie F, Charlesworth G, Fossey J & Moniz-Cook, E (2018) Practitioners’ understanding of barriers to accessing specialist support by family carers of people with dementia in distress. International Journal of Care and Caring 2, 1, 109-23
Selected Collaborative Research awards
The Dementia Research Group at UoH has been highly successful in achieving applied research funding from the mid 1990’s, with > £16 million awarded since 2014; > £2.5 million as CI. Examples are:
i) Moniz-Cook E (co-CI) with Mountain, G. & Øksnebjerg, L. (2014 - published October 2015) Dementia Outcome Measures; charting new territory [JPND-Research: Cohort Working Groups **€50,000** [ Danish Innovation Foundation, Denmark under the aegis of JPND]
ii) Moniz-Cook E (CI), Campion P, Markova I, Hilton, Mason A, Woods B, Mozley C, Russell I, Edwards R, Downs M, Stokes G, James I. & Orrell M (2007 - published 2017) Challenge Demcare: Management of Challenging Behaviour in Dementia at home and in care homes [NIHR-PfAR £2,079,654 - additional DoH infrastructure £343,375]
iii) Moniz-Cook E (co-I) with Orrell et al (2007- published 2017) SHIELD Support at Home - Interventions to Enhance Life in Dementia [NIHR-PfAR £1,979,387]
iv) Moniz-Cook E (co-I) with Ballard et al (2010 - published 2020) WHELD An Optimized Person Centred Intervention to Improve Mental Health and Reduce Antipsychotics amongst People with Dementia in Care Homes [NIHR-PfAR £2,106,004]
(vi) Moniz-Cook E (co-I) with Orrell et al (2014 -2021) PRIDE Promoting Independence in Dementia [ESRC/NIHR- Ref ES/L001802/1 £3,686,671]
vii) **Wolverson E (**co-I) with Cortés et al (2016-2019) CAREGIVERSPROMMD [Horizon 2020 EU. 3.1.6 €4,087,198,75 -Universitat Politecnica de Catalunya, Spain; UoH £372,543]
viii) Moniz-Cook E (co-I) with Mountain et al (2015-2020) Journeying through dementia; randomised controlled trial of clinical and cost effectiveness [NIHR-HTA Ref14/140/80 £1,964,888]
(ix) Moniz-Cook E (co-I) with Orrell M et al (2014 -2022) AQUEDUCT: Achieving Quality and Effectiveness in Dementia using Crisis Teams [NIHR-PfAR £1,978,647]
4. Details of the impact
Hull’s research impact has demonstrated conceptual and practice-based knowledge with positive outcomes. Outlined below is how it has: changed professional thinking about ‘behaviour in dementia’, through implementation of guidelines and toolkits ( 4.1); improved approaches to meeting psychosocial needs of people and carers, thus reducing the need for psychotropic drugs ( 4.2); provided a suite of online digital support tools ( 4.3) and; benefitted people affected by dementia through changes in public perceptions of dementia care ( 4.4).
4.1. Changing the thinking around perceived care challenges
Hull research has informed the NICE guidelines since 2006. Coinciding with the NICE update in 2018, the British Psychological Society (BPS) launched a “Call for Action”, highlighting the still unresolved need for specialist practitioners to support care homes and families in implementing non-pharmacological alternatives to psychotropic medicines, based largely on Hull’s research (E1). The BPS also commissioned a team of clinical experts to prepare a toolkit for multi-professional teams to apply the new evidence, including Hull’s seminal findings, on the management of CB. The BPS endorsed this guidance with circulation to 609 UK NHS specialist dementia care clinical psychologists (October 2019) and made it freely available to download (E2). This has influenced thinking across the NHS: A Quality Improvement Manager, NHS England/NHS Improvement (NE and Yorkshire) says: ‘ Thank you colleagues at Hull University for work on the dementia behavioural guidelines programme (London 2019) and disseminating this at our oversubscribed ‘Whole system’ event Leeds (June 2019) ( E3i); * Hull’s Challenge Demcare e-learning has been adopted by many from our 550 strong practitioner-network; we are piloting the CLEAR © training and Hull’s CBS tool in care homes’ (E3ii).
4.2 Customised non-pharmacological dementia care for managing CB
Professionals tended to misunderstand and miss the huge burden of clinically significant CB in family care, which therefore remained ‘hidden’ until it was too late to prevent breakdown of home-care, so antipsychotic drugs were commonly prescribed. Hull’s research has provided knowledge-based tools to better identify support-needs for this previously missed cohort, and also for those at risk in care homes. The Challenging Behaviours Scale (CBS) care-home tool was adopted by 78 registered NHS service locations across the UK (2016-2019). Hull’s website, where the tools are freely available, had 489 visits (11.08.20 - 31.12.20) to access the CBS care-home tool and its equivalent for family care. Feedback on the tool has been extremely positive, e.g. Two service users state, ‘ Repeat CBS is used to evaluate final outcome’; ‘in care homes we will go back and evaluate what difference there has been and use the CBS score’. ( E4). NHS services in Scotland and Northern Ireland have adapted the CBS for their services ( E5). Thus, Hull’s diagnostics protocols allow for timely recognition of clinically significant care-needs, and also enhance resolution of challenges before these become so burdensome that care breaks down. The wide adoption stems from the fact that the protocols are written in the everyday language of carers, with psychometrically sound cut-off points for the recognition of clinically significant CB and focussed behaviour support plans for family and care home settings. A Trust-wide Pathway Lead for Psychological Intervention, (Cumbria, Northumberland, Tyne and Wear NHS FT) writes: ‘ A particular strength of Hull’s work has been its focussed ‘easy to use’ behaviour support care plans, tailored to the individual health and psychosocial needs of the person with dementia with additional targeting of support needs of family carers and care home staff.’ (E6).
4.3 A digital repository of support for the management of behavioural care
As CB was previously not recognised as a clinically-defined dementia ‘care-need’, specialist professionals struggled to support families and care-homes effectively. The Hull team developed a website to create a digital platform for making best practice training and resource tools widely available. An online tool-kit is available alongside a digital training programme; the latter has received over 1000 viewings for some products (as of 31.12.20). The platform includes, the interactive, real-life, video-based e-learning tool for producing personalised care plans, completed by 541 registered users (11.08.2020-31.12.20). The Head of Quality Improvement & Research from NHS Vale of York Clinical Commissioning Group writes: ‘..your e-learning is absolutely fantastic! I have shared with York network - all 525 CCG staff, care homes, domiciliary providers and wider (local authority/acute/ primary care/ mental health etc)’ (E7i). The community feedback of videos such as ( “ Mick shouts for Lilly and aggressive with carers”), are widely appreciated as they easily communicate the huge struggles that people with dementia and carers can face: feedback from a Core Psychiatry Trainee: ‘I found it really helpful to review why people become aggressive or display certain behaviours and actually rather than putting it all as due to dementia, often there is a very clear, personality and lifestyle related reason which we can make practical steps to address’.( E7ii). During the COVID 19 pandemic, the website's digital material functioned as a ready-made template for shifting training resources online. For example, the Newcastle Communicating and Interacting Training (CAIT), intervention for dementia practitioners, included much of the functionality from the Hull website into their own COVID online training animations on behavioural care-challenges (31.12 20 almost 7,000 views). ( E6 & E8)
4.4 Empowering people with dementia, their families and the public to manage the perceived behavioural changes associated with the condition
The research findings have been widely disseminated beyond scholarly journals. For example, Moniz-Cook was invited to speak at the 2018 Latitude Festival (a rock festival with 35,000 attendances), addressing issues around preventable behavioural challenges in dementia ( E9). Hull’s research has stimulated widespread discussion and debate about the terminology. Moniz-Cook was invited to present a symposium at the Alzheimer Europe conference (The Hague, October, 2019) attended by 954 participants from 46 countries ( E10i). Worldwide debate on language followed the symposium, involving people with dementia such as the #BanBPSD campaigners, the European Working Group for people with dementia and individuals such as an individual who lives with dementia and blogs about her experiences with over 3,000 followers noticed. In January 2020 at the launch of Hull’s work on the Power of Language she wrote: “ I’ve had long held views about the language used by professionals. My pet hate is ‘Challenging behaviour’…which makes us out to be at fault instead of others simply not understanding our distress.” ( E10ii). This work gathered international ‘voices’ of people with dementia (54), carers (229) and stakeholders (378) to re-shape language and enhance positive practice.
Moniz-Cook presented Hull’s international collaborative research at the first dementia summit (February 2020) attended by > 80 leaders, live streamed to > 700 participants across the UK. The organisers commented, ‘ This session was one of the most popular during the day for our online audience and we have been asked by many to share footage of the session’ ( E11). Since the start of the REF period in 2014, when Moniz-Cook was the winner of the NHS Innovator of the year ( E12), Hull’s research has helped change thinking and actions from simply responding to behaviour, to understanding the psychosocial needs of people with dementia and carers and offering tailored support. The diligent work of everyone caring for people with dementia, is slowly shifting the public debate around dementia and how distress can be alleviated ( E13). In 2020 the National Institute for Health Research recognised the distress faced by people with dementia and the needs of care homes, and awarded £1.2 million to support the widespread adoption of our approach thus continuing the impact into the future ( E14).
5. Sources to corroborate the impact
Corroborating evidence for 4.1
E1 British Psychological Society - Click here: Evidence Briefing ‘Behaviour that Challenges’ in Dementia (2018) for Commissioners and Policy Makers
E2 Best Practice Guidance for BtC (CB). The FPOP Bulletin, 2019 148, 51-61 download free of charge Click here: BPS, Faculty for the Psychology of Older People (FPOP) - October 2019
E3.i 6th June 2019 NHS England (Yorks & Humber):Leeds A Whole Systems Approach to understanding psychological symptoms in delirium & dementia Click here: NHS Clinical Network
E3 ii Testimonial. Improvement Manager, NHS England/NHS Improvement (NE&Y)
Corroborating evidence for 4.2
E4 CHALLENGING BEHAVIOUR SCALE - CBS https://www.dementiahull.co.uk/toolkits.html; service user feedback ( https://hull-repository.worktribe.com/output/3183671)
E5 The CBS has been renamed for i) Scottish NHS services as ‘ Stress and Distress' in dementia http://dsdc.bangor.ac.uk/documents/PromotingpsychologicalwellbeingforPWDandcarers_NHSScotland_000.pdf; and used in the roll out of ii) Northern Ireland’s adopted CLEAR programme www.northerntrust.hscni.net/CLEAR
E6 Testimonial. Trust-wide Pathway Lead for Psychological Intervention, Cumbria, Northumberland, Tyne and Wear NHS FT, Clinical Psychology Services &. Professor (Hon). Centre for Applied Dementia Studies, University of Bradford, UK.
Corroborating evidence for 4.3
E7 i Testimonial. Head of Quality Improvement & Research, NHS Vale of York Clinical Commissioning Group and Vale of York Bulletin 4 09 19
E7 ii Feedback from Core Psychiatry trainee
E8 Newcastle CAIT Training. Examples of shared digital tools are:
Meeting the needs of people with dementia during Covid-19 (Uploaded 01.05.2020; 7,470 views by 31.12.2020)
Formulation in dementia care (Uploaded 21.05.20; 735 views by 31.12.20)
Therapeutic lies in dementia care (uploaded 26.05.20; 1036 views by 31.12.20)
Corroborating evidence for 4.4
E9 13th July 2018 Digital Innovation: Learning in the Digital Age: Esme Moniz-Cook talks about Dementia and Challenge Demcare at the Latitude Festival ( Click here for further detail)
E10.i. https://www.alzheimer\-europe.org/Conferences/Previous\-conferences/2019\-The\-Hague; https://www.alzheimer-europe.org/Conferences/Previous-conferences/2019-The-Hague/Detailed-programme-abstracts-and-presentations/P12.-INTERDEM-Care-and-services E10 ii https://www.dementiahull.co.uk/experts.html ‘The Power of Language’ and January 2020 Social Media Post - Person with Dementia and Blogger
E11 News Flash INTERDEM Click here: http://interdem.org/?p=7272 Dementia Care Research Summit. https://youtu.be/QXgQKV9hrQY starting at 38.28
E12 Moniz-Cook (2014, February, London) NHS England Leadership Academy: Click here: NHS Quality Champion/Innovator of the Year 2014 - National winner.
E13 ScienceDaily, 6th February 2018 - Click here: Science News: Dementia care improved by just one hour of social interaction each week.
E14 EurekAlert! News Release 6th October 2020:Click here: £1.2 million to roll-out dementia care home program to COVID-hit sector.
- Submitting institution
- The University of Hull
- Unit of assessment
- 3 - Allied Health Professions, Dentistry, Nursing and Pharmacy
- Summary impact type
- Health
- Is this case study continued from a case study submitted in 2014?
- No
1. Summary of the impact
Research from the University of Hull has defined the condition of chronic cough as a disease and had the following impact: the work has driven best practice culminating in the full publication of European Respiratory Society guidelines in 2020, the first truly international guidelines as endorsed by the Chinese and Asian Societies; the work has been crucial in driving significant investment in this, until recently, neglected disease, as evidenced by the purchase of Afferent by Merck for >$1 billion to become the market leader in chronic cough treatment. Five lead compounds in international phase 2 and phase 3 trials which all completed recruitment in 2020 are founded on Hull’s research.
2. Underpinning research
Research in Hull, led by Professor Alyn Morice since 1999, has established the patterns of presentation and molecular mechanisms that underlie chronic cough ( 2.1); developed methodologies for the disease’s objective quantification nationally and internationally ( 2.2); and has undertaken seminal work which has led to the development of a new class of antitussive drugs ( 2.3). The Hull team has worked together with key national (Prof S Birring, Kings College London, Prof L McGarvey, Queens University Belfast) and international collaborators (Prof P Dicpinigaitis, Einstein University, New York, USA) over the past two decades publishing extensively. The key research findings are:
2.1 Epidemiology and disease classification
We have shown that chronic cough is a condition that affects approximately 10% of the UK population; with half reporting that cough interferes with daily life (1), a finding subsequently confirmed by a systematic review of 80 studies worldwide (2). Currently, confusion in how to diagnose chronic cough leads to over-prescription of antibiotics, and the prescription of ineffective, inhaled, medication. We published a survey of such patients showing that they attended an average of six doctors, over a mean time period of 6 years, with multiple, costly, investigations; but always without any relief from their symptoms (3). In 2011 we published the Hull Airway Reflux Questionnaire (HARQ) demonstrating that this could accurately diagnose the condition (4). Over the REF period its usage has become global.
2.2 Adoption of best practice
A major clinical trial published in 2011 by the Hull team demonstrated that reflux cough did not respond to high-dose acid suppression, the previous standard treatment (5). This, together with confirmatory work from others, has led to a radical change in the recommendations in the recently published European Respiratory Society (ERS) guidelines. Prof Morice has chaired the four Task Forces, funded by the ERS, on the diagnosis, treatment and assessment of cough (last one held in 2019) involving investigators from the USA, China, Korea, as well as across Europe which has allowed an international consensus to be established.
2.3 Drug development
Hull’s research work on the mechanism of cough hypersensitivity has been vital for assessing the clinical importance of putative antitussive agents by both the pharmaceutical industry and the regulatory bodies. Hull has been one of the main centres conducting Phase 2 and 3 trials on the first-in-class drug, gefapixant (AF-219/MK-7264), on behalf of Afferent Pharmaceuticals. The drug is an antagonist of the P2X3 purinergic receptor, which has demonstrated a role for adenosine triphosphate (ATP) in afferent neural pathways of airway hypersensitivity. The emerging evidence of gefapixant’s efficacy against chronic cough is high, with approximately two thirds of patients with chronic refractory cough responding. At the request of the US Federal Drug Administration Prof Morice’s unit performed a study, published in 2020, demonstrating efficacy with subjective and objective endpoints. The primary endpoint of this study was a unique four modality challenge: ATP, distilled water, capsaicin and citric acid. This study demonstrated, for the first time, that two pathways exist in the human cough reflex; one irritant, nociceptor led, and one purinergic/osmotic, which is responsible for pathological cough (6).
3. References to the research
Ford, A. C., et al. Cough in the community: a cross sectional survey and the relationship to gastrointestinal symptoms. Thorax 2006: 61: 975-979.
Song, W. J., et al. The global epidemiology of chronic cough in adults: a systematic review and meta-analysis. European Respiratory Journal 2015: 45(5): 1479-1481.
Everett, C. F., et al. Chronic persistent cough in the community: A questionnaire survey. Cough. 2007: 3(1): 5.
Morice AH, Faruqi S, Wright CE, Thompson R, Bland JM: Cough hypersensitivity syndrome: a distinct clinical entity. Lung. 2011, 189: 73-79.
Faruqi S et al. Chronic cough and esomeprazole: a double-blind placebo-controlled parallel study, Respirology 2011: 16(7): 1150-1156
Morice AH; Kitt MMK; Ford AP; Tershakovec AM; Wu W-C; Brindle K; Thompson R; Thackray-Nocera S; Wright C. The Effect of Gefapixant, a P2X3 antagonist, on Cough Reflex Sensitivity: A randomized placebo-controlled study. European Respiratory Journal 2020: 54(1): 1900439
Research grants 2014-2020
In excess of £1.25 million pounds from the pharmaceutical industry has been awarded to the team since 2014 including for work on cough:
- AF 219 on the cough reflex. Afferent pharmaceuticals (£202,851)
A Study to assess the effect of AF-219 on cough reflex sensitivity in both healthy and chronic cough subjects (Clinical Trial)
- BAY1817080 in chronic cough. Bayer pharmaceuticals (£168,410)
Double-blind, placebo-controlled, randomized, two-way crossover administration with four-step dose titration in patients with refractory chronic cough to assess safety, tolerability and efficacy for proof of concept and dose-finding.
- Synairgen Research Ltd (£48,463)
A randomised, double-blind, placebo-controlled study, in COPD patients with and without a confirmed respiratory virus infection assessing anti-viral biomarker responses and clinical effects of inhaled SNG001 compared to placebo
Prof Morice has also been a co-applicant on two major, multicentre, grants responsible for the analysis of symptom data in chronic obstructive pulmonary disease (COPD).
NIHR Health Technology Assessment Programme (£2,257,399)
A randomised, double-blind placebo controlled trial of the effectiveness of low dose oral theo-phylline as an adjunct to inhaled corticosteroids in preventing exacerbations of COPD. 11/58/15. Sept 2013 – Dec 2017
NIHR Health Technology Assessment Programme (£2,508,343)
A randomised, double-blind placebo controlled trial of the effectiveness of the beta-blocker bisoprolol in preventing exacerbations of COPD. 15/130/20. Feb 2017-Jan 2022
Presentations
Prof Morice’s team has contributed to over 100 conferences and meetings (2014-2019), 50 of these at International congresses. In addition, he has chaired and contributed to more than 20 commercial expert panels and trial advisory boards, i.e. GlaxoSmithKline, Merck and AstraZeneca. At the 2019 European Respiratory Society meeting in Madrid (2019), Prof Morice launched the new international guidelines to over 1,200 delegates ( Evidence 2).
4. Details of the impact
The major impact of our research has been to characterise chronic cough as a disease distinct from asthma and Chronic Obstructive Pulmonary Disease (COPD) and to develop methodology to study it; subsequently, this has allowed drug development in a new therapeutic area. Hence, pharmaceutical companies have novel products in which to invest, and most importantly are able to bring relief to previously undiagnosed and untreatable patients.
2.1 & 2.2 Disease classification and Patient benefit
The simple diagnostic questionnaire, Hull Airway Reflux Questionnaire (HARQ), which the Hull team developed is now validated in 39 different countries and is available in 20 different languages. It is freely available online on ISSC.info; 8,546 UK patients accessed and completed the questionnaire in a single year (Evidence 1). In 2020, the use of these online resources was endorsed in the new International Guidelines (Evidence 2). The relief afforded to patients, who are able at last to understand their symptoms as cough hypersensitivity is difficult to understate (Evidence 3).
Patients who were previously dismissed as neurotic because no clear label could be attached, can now be told they have cough hypersensitivity, a disorder of the vagal afferent nerves. Such patients have usually undergone multiple investigation such as endoscopy, CT scan and challenge testing only to be told there is nothing wrong. Inappropriate treatment in the form of anti-asthma, antibiotic, or anti-acid therapy is prescribed, frequently on a long term basis. One patient’s account is detailed as an example of the huge impact the Hull team’s work has had: “ I have suffered from all the symptoms you describe in your article, to a chronic degree for the last 7 or more years. I have seen so many consultants and specialists they are too numerous to mention. I have undergone all the tests relating to this problem several times over and have taken all the prescribed medications for reflux to no avail and I am still no nearer any sort of a fix. I am depressed and anxious (medicated) due to the worry of the condition of my lungs, airway and throat and the possibility of long term damage or even cancer. ... Your article is the first time in those 7 years that I have seen a diagnosis that entirely matches my symptoms! I am elated ...” (Evidence 4).
The international guidelines provide guidance to clinicians, impact positively on the patient pathway, decrease the chances of costly risks associated with cough management, i.e. CT scan induced breast cancer, and provide effective advice on often unconsidered therapeutic options (Evidence 2).
2.3 Developing new drugs for chronic cough
Hull’s work, defining at least two different pathways for the pathophysiology of chronic cough, explained why several costly clinical studies blocking the irritant receptors failed in the clinic, as a result of these findings drug development by GSK has now been abandoned. The Clinical Development Director of GlaxoSmithKline stated, “This study investigated the efficacy and safety of GSK2798745 (a TRPV4 inhibitor) in patients with chronic cough. The results of this study allowed a clear decision to be made regarding termination of development of this compound in this indication. The impact of this work was that there was a cost saving to the project with spending until study completion not required. Because of the specific design of the study, the work also prevented unnecessary recruitment of patients to a study with an ineffective drug.” ( Evidence 5).
Conversely, Hull’s research has led to the substantial investment in the development of a series of effective, novel, therapeutics by various other pharmaceutical companies. Afferent Pharmaceuticals were the first to develop an effective agent blocking vagal afferent hypersensitivity; Gefapixant (AF219/MK7264) was trialled in several phase 2 studies where Prof Morice advised on the study design and conduct. As a result of further studies on Gefapixant, Afferent Pharmaceuticals was acquired by Merck, a major global pharmaceutical company. The commercial decision was attributed in part due to Hull’s research data ( Evidence 6). The deal involved an immediate payment of $500 million, with a further $750 million payable when the drug was licensed by the US Federal Drugs Agency (application in progress). Prof Morice has continued to work with Merck and indeed was responsible for providing the advice as to the primary endpoint of their pivotal, phase 3, clinical studies (Cough 1 and Cough 2; presented at the ERS Congress September 2020). The Clinical Director of Merck wrote, “Alyn (Prof Morice) has done a wonderful job of helping educate the overall Merck team on the field of chronic cough and he has provided valuable input on the chronic cough clinical program with regards to appropriate endpoint selection, rigorous patient selection, and expert opinion support during the course of the trial.” (Evidence 7).
Finally, first data from Merck’s phase III studies of Gefapixant (Cough 1 and Cough 2), studying over 2000 patients with objectively proven chronic cough, clearly showed the effectiveness of using HARQ as a diagnostic tool. The HARQ score at baseline for these patients was 40/70, whereas the upper limit of normal people is 14; demonstrating for the first-time HARQ’s global utility (Evidence 8).
In anticipation of a UK licencing application for these new drugs the Hull team have been advising the UK’s National Institute for Health and Care Excellence (NICE) as to the correct metrics to use in their assessment of antitussive drugs. Commonly used scores such as Short-form (SF) 35 which measure quality of life (QOL) are inappropriate since patients with chronic cough are rarely physically disabled even if their lives are ruined.
Three other compounds of this new class of drug, exploiting Hull’s research that defined a mechanistic pathway, are currently in phase 2 trials. Bayer, Shionogi, and Bellus Health, have all made multi-million investments in these clinical trials; and Prof Morice is supporting the companies by advising as chief or principal investigator, e.g. “The unique combination of scientific & clinical expertise of Prof. Alyn together with this ability to optimally run and steer clinical studies has informed our research and development programs and allowed us to progress our P2X3 projects to successful demonstrating efficacy in patients with refractory chronic cough(RCC)” ( Evidence 9). Preliminary trial results show treatment success in over two thirds of patients and therefore it is highly likely that the first effective drugs for chronic cough in over 40 years will soon be available ( Evidence 10).
5. Sources to corroborate the impact
Evidence 1. HARQ and ISSC.info usage. (http://www.issc.info/HullCoughHypersensitivityQuestionnaire.html\)
Evidence 2. ERS guidelines on the diagnosis and treatment of chronic cough in adults and children. Latest modification of the guidelines that revolutionise the management of chronic cough. European Respiratory Journal 2020: 55: 1901136
Evidence 3. YouTube Cough video https://www.youtube.com/watch?v=jtwlv75XuYU&t=19s
Evidence 4. Patient testimonial (Email 31/12/2019).
Evidence 5. Discovery Medicine, GlaxoSmithKline, Clinical Development Director, Letter of support.
Evidence 6.
Afferent Pharmaceuticals, Chief Executive Officer, 19 July 2016. Testimonial indicating the key role of Professor Morice in Hull in enabling the commercial impact: by providing expert opinion to inform the investment community, and advising the company on development of their drug using his expertise in conducting cough challenge studies.
Merck to acquire biotech company Afferent. News item in Wall Street Journal, 9 June 2016. www.wsj.com/articles/merck\-to\-acquire\-biotech\-company\-afferent\-1465509592.
Merck Announces Presentation of Phase 2 Results for MK-7264, an Investigational, P2X3 Receptor Antagonist, Being Evaluated for the Treatment of Chronic Cough Press release dated 22 May 2017.
Evidence 7. Merck & Co., Inc, Director Clinical Development, Letter of support Evidence 8. Merck first report on Gefapixant Phase 3 trials.
- McGarvey L, et al. Two Phase 3 Randomized Clinical Trials of Gefapixant, a P2X3 Receptor Antagonist, in Refractory or Unexplained Chronic Cough (COUGH-1 and COUGH-2). Late Breaking Abstract, ERS International Virtual Congress 2020, 7-9 Sept
Evidence 9. Bayer, Director Experimental Medicine Clinician. Letter of support
Evidence 10. Bellus Health, Chief Medical Officer. Letter of support
- Submitting institution
- The University of Hull
- Unit of assessment
- 3 - Allied Health Professions, Dentistry, Nursing and Pharmacy
- Summary impact type
- Health
- Is this case study continued from a case study submitted in 2014?
- No
1. Summary of the impact
University of Hull’s research has underpinned new National Institute for Health and Care Excellence (NICE), European and Royal Society of Medicine guidelines on how to treat varicose veins and venous leg ulcers (VLUs). NHS data have shown that the application of these evidence-based guidelines has significantly improved quality of life in over 80% of patients for whom the pain levels are equivalent to a heart attack. The research has led to the first improvements in healing of VLUs utilising minimally-invasive surgery since compression bandaging was introduced in ancient times. Importantly the technique is also cost-effective as early intervention reduces the need in many for more invasive treatments in the future.
2. Underpinning research
Varicose vein (VV) and varicose leg ulcer (VLU) treatment aims to reduce hypertension in the veins of the leg. Surgical ligation and stripping was introduced around 1,000AD and, with little refinement, has remained the mainstay of treatment into modern times. This involves making a wound, tying off the diseased vein and stripping it out of the leg, usually during general anaesthetic (unconscious). Ultrasound guided endothermal ablation (ETA) was first introduced in 2000. The aim of this, minimally-invasive treatment, is to access the vein with a needle, and using either laser or radiofrequency energy to produce heat, occluding the vein; all performed under a local anaesthetic (awake).
Prof Chetter and Dr Carradice have led a research team of surgeons and nurses at the University of Hull (UoH) since 2006. The team has worked both independently and collaboratively to drive forward understanding of the disease and improve treatment. Key collaborators include: Prof J.Brittenden (University of Aberdeen), Prof B.Campbell (NICE), Prof A.Davies and Dr M.Gohel (Imperial College). The key research topics are:
Technique Refinement
Based upon preliminary data from our unit and others, laser ETA appeared to have the most promising results, but a number of important factors remained undefined. The UoH team optimised the quantity and mode of energy delivery; determined how close the treatment could be used to the deep vein to improve efficacy whilst maintaining safety; and how to manage the side tributaries to the main vein. A series of randomised controlled trials (RCTs) were undertaken, e.g. an RCT of immediate versus delayed treatment of tributaries, which proved that immediate treatment is associated with increased quality of life (QoL) and was highly cost-effective [1]. An RCT of buffered versus unbuffered tumescent demonstrated that the former is associated with significantly less pain and improved QoL [2]. Tumescent anaesthesia is when a very dilute local anaesthetic solution is put into the leg, and Hull’s work demonstrated that balancing the pH significantly reduces discomfort.
RCTs to identify the optimal treatment
UoH performed the largest two arm RCTs (HELP1 and HELP2 n=380) comparing surgical ligation with ETA. These proved that both treatments were safe and effective, but that ETA was associated with less pain, lower morbidity, improved early QoL, reduced recovery time and decreased disease recurrence up to 5 years [3]. UoH then worked with a multicentre team to perform the largest three arm RCT (top recruiter NIHR CLASS n=798) [4]. The aim was to compare the three basic modalities of treatment Surgery, ETA and foam sclerotherapy (FS). This study showed that the efficacy of FS was significantly lower than ETA or surgery.
VLU management
The UoH team proceeded to evaluate whether the new techniques could improve outcomes in VLU. They completed a Cochrane review in 2013 which led to a multicentre RCT project (NIHR EVRA n=450) [5]. This trial demonstrated that early minimally-invasive treatment was associated with a significant improvement in healing when compared with delayed treatment, and that early treatment is cost-saving to the NHS. The UoH team then repeated the Cochrane analysis providing the first level 1a evidence to support improved VLU healing following this treatment (due early 2021, delayed due to Covid).
Policy evaluation
The UoH team demonstrated, using hospital-episode statistics, that despite high-quality, evidence-based national guidelines, patients were not receiving the recommended treatments. Following the hypothesis that this was related to the commissioning of care, UoH examined the funding decisions by NHS Clinical Commissioning Groups in England [6]. This study demonstrated widespread non-compliance with the guidelines and identified rationing mechanisms being employed to limit access; this caused significant geographical variation in the quality and access of care.
3. References to the research
1. Carradice D, Mekako AI, Hatfield J, Chetter IC. Randomized clinical trial of concomitant or sequential phlebectomy after endovenous laser therapy for varicose veins. Br J Surg. (2009) 96: 369-75
2. Nandhra S, Wallace T, El-Sheikha J, Leung C, Carradice D, Chetter I. A Randomised Clinical Trial of Buffered Tumescent Local Anaesthesia During Endothermal Ablation for Superficial Venous Incompetence. Eur J Vasc Endovasc Surg. (2018) 56(5):699-708.
3. Samuel N, Carradice D, Wallace T, Mekako A, Hatfield J, Chetter I. Randomized clinical trial of endovenous laser ablation versus conventional surgery for small saphenous varicose veins. Ann Surg. (2013)257(3):419-26.
4. Brittenden J, Cotton SC, Elders A, Ramsay CR, Norrie J, Burr J, Campbell B, Bachoo P, Chetter I, Gough M, Earnshaw J, Lees T, Scott J, Baker SA, Francis J, Tassie E, Scotland G, Wileman S, Campbell MK. A randomized trial comparing treatments for varicose veins. N Engl J Med. (2014) 371: 1218-27.
5. Gohel MS, Heatley F, Liu X, Bradbury A, Bulbulia R, Cullum N, Epstein DM, Nyamekye I, Poskitt KR, Renton S, Warwick J, Davies AH; EVRA Trial Investigators. A Randomized Trial of Early Endovenous Ablation in Venous Ulceration. N Engl J Med. (2018) 378(22):2105-2114.
6. Carradice D, Forsyth J, Mohammed A, Leung C, Hitchman L, Harwood AE, Wallace T, Smith GE, Campbell B, Chetter I. Compliance with NICE guidelines when commissioning varicose vein procedures. British Journal of Surgery Open. 2018 2(6):419-425.
Grants
The AVSU has been awarded almost £8 million in national and international peer reviewed funding for research into treating varicose veins, claudication, exercise and peripheral arterial disease, including the following major awards:
NIHR HTA Bypass v Angioplasty in Severe Ischaemia of the Leg (BASIL-2) trial – co-applicant with Prof A Bradbury (Birmingham); 2014 – 2023; £2,024,094
NIHR HTA Balloon vs Stenting in Severe Ischaemia of the Leg (BASIL-3) trial; co-applicant with Prof A Bradbury (Birmingham); 2015-2021; £1,938,633
NIHR EME Does Neuromuscular Electrical Stimulation Improve the Absolute Walking Distance in Patients with Intermittent Claudication (NESIC) compared to best available treatment? A Multicentre Randomised Controlled Study; co-applicant with Prof A Davies (London); 2017-2021; £1,073,008
Prizes & awards to members of ASVU
Since 2014, members of the AVSU have won 10 conference prizes including the British Journal of Surgery Research Prize Presentation twice, the Vascular Society of Great Britain and Ireland’s Sol Cohen Prize on 2 occasions and the Richard Wood Prize.
4. Details of the impact
The research impacts are multifaceted, manifesting in the development of improved national and International guidelines ( 4.1), significant improvements in patient treatment and the provision of these services ( 4.2), whilst delivering economic benefits to medical device companies providing minimally-invasive interventions for varicose veins (VV) and vascular leg ulcers (VLU) (4.3).
4.1 Supporting National & International treatment guidelines
UoH research has been used to underpin national and international treatment guidelines both promoting an increase in the number of patients offered treatment and shaping the recommendations of what that treatment should be. Four UoH studies were cited (including References 1 and 4) as significant sources of evidence for the NICE guidelines updated in 2016 on diagnosis and management of varicose veins (CG168) ( Evidence 1i, ii). Prior to this, there was inconsistency about which patients were referred for treatment and about which treatments were most appropriate. The 2001 guidance provided the basis for referral only when VV resulted in complications, and at that point open surgery was the standard intervention. The new guidelines, based on UoH work, introduced two key changes: Endothermal ablation (ETA) is now the preferred first line intervention for VV; and that the QoL and cost effectiveness benefits, mean that the recommendation is for all symptomatic patients to be referred for vascular treatment, irrespective of complications.
In 2015 the European Society for Vascular Surgery released its own practice guidelines for Europe. The UoH studies were again used to support the preferential use of endothermal techniques over all other treatment options ( Evidence 2). In 2018 The Royal Society of Medicine released guidelines on the management of VLUs, and using evidence from the EVRA trial (Reference 7), for the first time these guidelines incorporated a recommendation that all patients amenable for endovenous treatment should receive this, and that it should be delivered expeditiously ( Evidence 3).
4.2 Impact on clinical care and policy implementation
In the UK in 2000 open surgery for VV or VLU accounted for 97% of the surgical procedures undertaken in the UK NHS. By 2019/20 this had dropped to 23%, and ETA had risen to 50% ( Evidence 4). The revised guidelines, based on UoH work, also served to increase the total number of procedures performed. These had fallen from 55,609 in 1998 to 24,300 in 2012, but rose again to 33,439 by 2016. The global trend has mirrored these findings, but with a significantly higher rate of growth overall than seen in the UK NHS ( Evidence 5).
The NHS introduced the mandatory collection of Patient Reported Outcome Measures (PROMs) for a number of treatments in 2009, this included for the treatment of VV. This real-world data demonstrated that following the NICE-approved, minimally-invasive, venous treatment discussed above in section 4.1, over 80% (5,260 of 6,575) patients reported significant improvements in QoL in 2018. This compares very favourably against other healthcare interventions and was not only reflected in disease-specific measures, but also the generic health questionnaire, EQ5D, which demonstrated a significant gain in Quality Adjusted Life Years ( Evidence 6i, ii). These outcomes clearly demonstrate the impact of UoH research on patients, through the adoption into guidelines and thus clinical practice.
UoH policy research has highlighted the barriers in access to care that are present across the UK. This work was included in a recent publication by the All Party Parliamentary Group on Vascular and Venous Disease ( Evidence 7) and the evidence was quoted during a debate on the floor of the House of Commons on 23rd July 2019 by Ann Clwyd MP. These events and the evidence based guidelines from the Royal Society of Medicine, co-authored by Dr Carradice, resulted in efforts by NHS England to incentivise the care of these patients through the establishment of an NHS CQUIN (Commissioning for Quality and Innovation) scheme. This will support further improvements in the care of patients with VLU nationally ( Evidence 8).
4.3 Benefits to the healthcare technologies sector
The evidence from UoH has helped unlock brand new markets for minimally-invasive technology in the management of VV and VLU, especially through working with Medtronics, the world’s leading medical technology company. The Senior Director of Global Medical Science | Endovenous states “ Minimally-invasive endovenous treatments of varicose veins for chronic venous disease have revolutionized the treatment of patients globally. The University of Hull’s research helped to outline these benefits and drive changes in national guidelines culminating in a change of practice. This technology has subsequently improved the quality of life and outcomes of a large population of patients. As a market leader in catheter based endovenous technologies for treating chronic venous disease, we are focused on innovation and research to expand minimally invasive innovation to improve the quality of life for all patients with venous disease…....Our market estimates that the global opportunity for Chronic Venous Insufficiency (CVI) is over 7 million patients per year, of which nearly 4 million are within the US and Europe.” (Evidence 9) Medical device Industries have continued to refine existing products, Medtronics offer ClosureFast™ and the VenaSeal™, and there has been a proliferation of new companies and technologies all aiming to improve the outcomes and applicability of this treatment paradigm. Thus, there has been a tremendous growth in the global market for these new technologies from a negligible base at the commencement of UoH’s research programme in 2006; the revenue from a single modality of treatment (EVLA) in 2016 was US$ 273.6 million and market analysis predicts that this will grow to an estimated US$ 550 million by 2026 ( Evidence 10).
5. Sources to corroborate the impact
Evidence 1i. Varicose veins: diagnosis and management. NICE Clinical Guideline CG168, published 24 July 2013. https://www.nice.org.uk/guidance/cg168/resources/varicose-veins-diagnosis-and-management-35109698485957. Updated 2016
Evidence 1ii. NICE news article: Offer less invasive treatments before surgery for varicose veins https://www.nice.org.uk/guidance/cg168/resources/surveillance-report-2016-varicose-veins-in-the-legs-2013-nice-guideline-cg168-2307804013/chapter/Surveillance-decision
Evidence 2. Management of Chronic Venous Disease Clinical Practice Guidelines of the European Society for Vascular Surgery (ESVS) Eur J Vasc Endovasc Surg (2015) 49, 678-737
Evidence 3. Royal Society of Medicine: Venous Forum. Management of Patients with Leg Ulcers. https://www.rsm.ac.uk/media/5472579/management-of-patients-with-leg-ulcers.pdf
Evidence 4. NHS Digital Hospital Episode Statistics database. https://digital.nhs.uk/data\-and\-information/data\-tools\-and\-services/data\-services/hospital\-episode\-statistics
Evidence 5. Varicose Vein Treatment Market: Endovenous Laser Therapy Market: Global Industry Analysis and Opportunity Assessment, 2016-2026. Future Market Insights. Published April 2017 https://www.futuremarketinsights.com/reports/varicose-veins-treatment-devices-market
Evidence 6i. Special topic: A study on varicose vein treatments, Patient Reported Outcome Measures (PROMs) in England, April 2009 to March 2015. Health and Social Care Information Centre, published 11 February 2016.
Evidence 6ii. Finalised Patient Reported Outcome Measures (PROMs) in England – For Groin Hernia and Varicose Vein Procedure. NHS Digital. Published 14 June 2018.
Evidence 7. All-Party Parliamentary Group on Vascular and Venous Disease. Venous Leg Ulcers: A Silent Crisis
https://static1.squarespace.com/static/5981cfcfe4fcb50783c82c8b/t/5da742db4b4d0146eb8b8b9e/1571242723193/Venous+leg+ulceration+2019+web . (accessed May 2020)
Evidence 8. NHS England 2020/21 CQUIN programme. https://www.england.nhs.uk/wp-content/uploads/2020/01/FINAL-CQUIN-20-21-Core-Guidance-190220.pdf
Evidence 9. Testimonial letter. Medtronic
Sr Director Global Medical Science | Endovenous. Plymouth MN, USA
Evidence 10. Varicose Veins Treatment Devices Market to 2025 - Global Analysis and Forecasts by Product, Treatment, End User, and Geography. Research and Markets. Published January 2019. https://www.researchandmarkets.com/reports/4747989/varicose-veins-treatment-devices-market-to-2025.
- Submitting institution
- The University of Hull
- Unit of assessment
- 3 - Allied Health Professions, Dentistry, Nursing and Pharmacy
- Summary impact type
- Health
- Is this case study continued from a case study submitted in 2014?
- No
1. Summary of the impact
Palliative care research at Hull has had global impact by characterising and improving management of chronic breathlessness, through changes in National and International guidelines and a world-first regulatory licence for morphine in the pharmacological management of this debilitating syndrome which affects over 88 million people worldwide. This has been achieved by addressing the inequalities in palliative care of ageing patients with non-malignant heart and lung disease, as compared with cancer patients and by developing effective tools to identify and triage care and providing new therapeutic interventions.
2. Underpinning research
Before 2000, few palliative care (PC) services in the UK, or worldwide, accepted patients with non-malignant conditions. Thus, few patients with such diseases accessed specialist PC services or received evidence-based symptom control measures, despite there being a similar need, i.e. >90% of people with advanced heart and lung disease will have chronic breathlessness, levels similar to the prevalence in lung cancer patients. Most died in hospital, often by default, not preference. Miriam Johnson (UoH, Professor of Palliative Medicine and Director of the Wolfson Palliative Care Research Centre [WPCRC]) leads a multidisciplinary research team that has worked for almost two decades to rebalance this gross inequity in palliative care access.
The senior WPCRC research team now comprises: Johnson and Currow (population health; policy and trials), Murtagh (outcomes and skill-mix); and Pearson (implementation science). The research group has attracted more than £14 million since its inception in 2000. Their research has underpinned international clinical guidelines and led to patient benefit.
Key research findings:
Palliative care beyond cancer
In 2000 Johnson started the UK’s first integrated heart failure, primary care (HF-PC) service in Scarborough (a Hull York Medical School clinical partner site) and from the work at this centre published service descriptions in 2006 , [1] 2009 and 2012, and co-edited the world’s first HF-PC clinical handbook. In 2014, Gadoud, Macleod and Johnson published a UK Clinical Practice Research Database study of those dying in 2009 (n = 27,689) showing the inequality of PC access for people with HF compared with cancer (7% vs 48%); their recent study shows that by 2014, PC access had increased to 25% of people dying of Chronic Obstructive Pulmonary Disease (COPD) or HF [2].
Symptom management of chronic breathlessness
In 2011 Johnson, Oxberry and Clark published the first adequately powered, 4-day placebo, randomised-controlled trial (RCT) in heart failure (HF) [3] and the only 3-month placebo RCT of oral morphine for chronic breathlessness due to HF. In addition, Currow and Johnson completed the only dose titration study which underpinned the Regulatory License approved dose regimen for oral morphine. Finally, Johnson and Currow led the international research to define the new clinical syndrome of chronic breathlessness. In 2017 Hutchinson and Johnson delineated the new conceptual framework of “Breathing Space” to convey the experience of people living with chronic breathlessness [4]. Using pooled clinical study data, Johnson and Currow defined the minimal clinically important difference (MCID) in breathlessness intensity measurement demonstrating that patients attach value to even a small improvement. [5].
Development of novel ways to access and deliver PC
People with interstitial lung disease have many PC needs but, despite policy directives, only 3% patients accessed PC in 2015. Johnson, Hart, Boland and Currow adapted and validated the Needs Assessment Tool-Interstitial Lung Disease ( NAT-ILD) to identify and triage palliative needs. Finally, Johnson pioneered the use of subcutaneous administration of furosemide to reduce hospital admissions in people with decompensated advanced HF; publishing their service development findings in 2011 [6].
3. References to the research
Johnson MJ, Houghton T. Palliative care for patients with heart failure: description of a service. Palliat Med 2006; 20(3):211-214. (Scopus citations 31; Google citations 65; field weight citations (FWC) 2.67)
Gadoud A, Kane E, Oliver SE Johnson MJ, Macleod U, Allgar V. (2020) Palliative care for non-cancer conditions in primary care: a time trend analysis in the UK (2009–2014) BMJ Supportive & Palliative Care Published Online First: doi: 10.1136/bmjspcare-2019-001833
Oxberry SG, Torgerson DJ, Bland JM, Clark AL, Cleland JG, Johnson MJ. Short-term opioids for breathlessness in stable chronic heart failure: a randomized controlled trial. Eur J Heart Fail 2011; 13(9):1006-1012. (Scopus citations 39; Google citations 85; FWC 2.09)
Johnson MJ, Yorke J, Hansen-Flaschen J, Lansing R, Ekstrom M, Similowski T et al. Towards an expert consensus to delineate a clinical syndrome of chronic breathlessness. Eur Respir J 2017; 49(5). (Scopus citations 23; Google citations 150; FWC 9.24; Altmetrics score 80).
Johnson MJ, Bland JM, Oxberry SG, Abernethy AP, Currow DC. Clinically Important Differences in the Intensity of Chronic Refractory Breathlessness. J Pain Symptom Manage 2013; 46(6):957-963. (Scopus citations 56; Google citations 99; FWC 7.09)
Zacharias H, Raw J, Nunn A, Parsons S, Johnson M. Is there a role for subcutaneous furosemide in the community and hospice management of end-stage heart failure? Palliat Med 2011; 25(6):658-663. (Scopus citations 26; Google citations 49; FWC 1.26)
Research awards etc.
1) Excellence in Research. Researcher of the Year 2017. University of Hull. Johnson MJ.
2) Golden Hearts Award, Hull University Teaching Hospitals NHS Trust; University-Trust research partnership between respiratory and palliative care. 2019. Johnson MJ, Hart S, Crooks M, Hutchinson A, Swan F, Currow D.
3) Tom Reeve Award for Outstanding Contribution to Cancer Care from the Clinical Oncological Society of Australia 2015 For a significant contribution to cancer care through research and clinical leadership. Currow D.
4) American Academy of Hospice and Palliative Care (AAHPM) 2015 Award for Excellence in Scientific Research in Palliative Care. Currow D.
5) Field leader in Hospice and Palliative Care. The Australian. 2019. https://specialreports.theaustralian.com.au/1540291/health-and-medical-sciences/ Currow D.
Selected competitive grant support
Work to reduce inequalities in palliative care for people with non-malignant disease has formed the foundation of the following awards from national and international peer review funders, totalling more than £15 million as of 3rd of May 2019. Members of Hull team are in bold.
Capacity Building awards (£0.9M)
a) 2019 – 2024. Research England International Investment Initiative. Building Critical Mass, Increasing Scale and Impact for Palliative Care Research through International Collaboration. Johnson MJ on behalf of the Wolfson Palliative Care Research Centre. £403,510. One of only 8 awarded across all HEIs in England, across all disciplines.
b) 2016. Wolfson Foundation. Johnson MJ on behalf of the palliative care research group. Application for Palliative Care Research in the Institute for Clinical and Applied Health Research. £500,000. This grant founded the Wolfson Palliative Care Research Centre.
Symptoms (£6.9M)
a) 2014 – 2015. NIHR RfPB. A randomised trial of high versus low intensity training in breathing techniques for breathlessness in patients with malignant lung disease: early intervention. Johnson MJ (CI), Nabb S. £247,152
b) 2014 – 2018. NHMRC. Improving the treatment of breathlessness – a phase III randomised, controlled trial of sustained release morphine for the symptomatic treatment of chronic refractory breathlessness. A national Palliative Care Clinical Studies Collaborative study. Currow DC (CI), Johnson MJ. AUS$860,808 (£464,743)
c) 2018 – 2020. EU Horizon 2020. Better treatments for breathlessness in palliative and end of life care (BETTER-B). (Chief investigator, Kings College London) Currow DC, Johnson MJ. € 3769999,75 (£3,3M)
d) 2018 – 2022. NIHR HTA. A parallel group, double-blind, randomised, placebo-controlled trial comparing the effectiveness and cost-consequence and cost effectiveness of low dose oral modified release morphine (MRM) versus placebo on the intensity of worst breathlessness in people with chronic breathlessness. Johnson MJ (CI), Currow DC, Hart SP, Pearson M, Seymour J.- £1,2M.
Access to PC (£5.2M)
a) 2016. British Heart Foundation. Caring Together Cohort study. Johnson MJ (CI). £160,000
b) 2016 – 2023 Yorkshire Cancer Research. Reducing Inequalities in Cancer Outcomes in Yorkshire: Realising our potential for innovation in Patient Management, Survivorship and Palliative Care Research (University of Hull Endowment). Macleod U & Johnson MJ (Co-CIs), Lind M, Murtagh F, Currow DC. £4.9M.
Tools (£2.0M)
a) 2011 -2014. Dunhill Medical Trust clinical fellowship. Successful application. “Needs Assessment in Parkinson’s Disease” to support clinical fellowship. Johnson MJ (Primary Supervisor), Richfield E. £189,863
b) 2019 – 2022 Yorkshire Cancer Research. Effectiveness and cost-effectiveness of a needs assessment tool in primary care for people with active cancer with regard to unmet patient and caregiver need, compared with usual care. Johnson MJ, Clark J, McCormack T, Currow DC. £1,398,435.
4. Details of the impact
Research at Hull into chronic breathlessness has influenced clinicians, policy makers, funding bodies and has significantly improved the care experienced by patients and their families. Access to PC and novel symptom control has increased both nationally and globally.
Palliative care beyond cancer
The National Centre for Palliative Care (NCPC) minimum dataset (2015) shows that access to hospice services by people with HF increased to 15% of inpatient admissions, 24% of day care, 29% of outpatients, and 27% of hospital advisory services, from previously non-existent levels ( Evidence 1). In the North East & Yorkshire area, Prof Johnson’s clinical region, providing the UK’s first combined HF-PC service, Public Health England figures (2018) showed that patients dying with circulatory disease had the highest home death rate (an indirect measure of quality end of life care); 56.6% vs national average of 44.8%; (Evidence 2).
Johnson provided clinical academic advice for the NHS/Marie Curie/British Heart Foundation funded “Caring Together” HF/PC Programme in Glasgow. Since 2010, 78 “change-agent” practitioners representing multi-disciplinary teams across Scotland have attended the resulting Scottish government funded course. ( Evidence 3). Also, Johnson was an invited committee member of the National Confidential Enquiry for the Prevention of Deaths (Heart Failure), the report highlights the importance of access to PC in HF in their recommendations. The Scottish Government are using the PC recommendations of this enquiry to inform their new heart disease strategy (Evidence 4).
In view of Hull’s leading reputation, the team were commissioned to produce a Hospice UK/British Heart Foundation position document, detailing clinical priorities in hospice service provision for people with HF. To address the identified need the St James’ Foundation then issued a grant call for hospice-led HF service development project proposals and 17 projects across the UK were funded (total value £500,000) in 2018 ( Evidence 5).
NICE (October 2016, E0070) has endorsed the Hull tool to support national guidelines on Interstitial Pulmonary Fibrosis. Even though there are only about 30 ILD units in the UK, since October 2016 the tool has been downloaded from the HYMS website over 400 times. Furthermore, Johnson has received requests from Melbourne (Australia), Pennsylvania (USA), and Montreal (Canada) for the tool for adoption in their clinical service ( Evidence 6).
Symptom management
Work by Hull researchers on opioids, oxygen and the battery-operated hand-held fan for breath-lessness are now included in 8 (opioids) and 6 (oxygen) clinical guidelines for chronic breath-lessness around the world ( Evidence 7). Hull’s measure of the MCID in chronic breathlessness is the current global research standard. Hull researchers worked with Mayne Pharma and the Therapeutic Goods Administration of Australia for the license of Kapanol™ (a preparation of morphine) to be extended to include people with chronic breathlessness. This is a world-first as the only licensed medication for chronic breathlessness; importantly the government have included it on the public subsidy list to ensure access is maximised. These actions delineate the standard of care and the template for other regulatory bodies to follow, supporting safe access to important symptom control to the millions round the world with chronic breathlessness ( Evidence 8).
Hull’s definition of the concept of chronic breathlessness as a clinical syndrome, was used in an international survey (UK, Australia and New Zealand) which demonstrated that the overwhelming majority of respiratory (89%) and palliative (98.5%) clinicians now recognise chronic breathlessness as a distinct target for treatment. Of note, 75% responding palliative physicians and 41% respiratory physicians recommend oral morphine for breathlessness ( Evidence 9). The Hull definition was also used in a French survey; just over half of patients with COPD had unmanaged chronic breathlessness, bringing a hitherto “invisible” but distressing problem to light ( Evidence 10).
Development of novel ways to access and deliver PC
Hull research is cited in clinical guidelines and policy statements recommending integration of palliative care with HF management. Johnson was a core member of the European Association of Palliative Care’s taskforce which prepared an international position statement, including Australia and North America, regarding integration of palliative care in cardiology ( Evidence 11).
The Hull team have hosted visits from more than 20 leading healthcare professionals from around the world over the past decade; one of these, subsequently became the lead cardiologist for Glasgow’s Caring Together Project and has changed practice in Scotland, “I reconfigured our service to provide an advanced heart failure clinic, working with a nurse specialist, and established a palliative care-heart failure multidisciplinary team meeting between cardiology and palliative care services, including local hospices; both these services were strongly influenced by Johnson’s work”. ( Evidence 12). Another visiting fellow, after 2016 established a palliative care section of the Italian Respiratory Society which has held its first scientific conference in 2019 with 45 delegates; he led an Italian position statement about PC in respiratory disease December 2020 ( Evidence 13).
5. Sources to corroborate the impact
Evidence 1. NCPC minimum dataset. https://www.hospiceuk.org/docs/default\-source/What\-We\-Offer/publications\-documents\-and\-files/minimum\-data\-set\-summary\-report\-2014\-15
Evidence 2. Public Health England Palliative and End of Life Care Profiles
Evidence 3. Caring Together Programme final evaluation report.
Evidence 4. National Confidential Enquiry into Patient Outcome and Death
Evidence 5. Hospice UK and St James’ Foundation grant call
Hospice UK. Heart failure and hospice care: how to make a difference. London: Hospice UK, 2017
Evidence 6. NICE endorsement of the NAT:ILD tool.
Evidence 7. Guidelines
Parshall et al American Thoracic Society guidelines management of dyspnea
European Society for Cardiology guidelines.
http://www.cardio.se/sites/default/files/ESC%20Guidelines%20for%20the%20diagnosis%20and%20treatment%20of%20acute%20and%20chronic%20heart%20failure%202016.pdf
Evidence 8. Summary of Medicinal product Characteristics – Kapanol
Evidence 9. Physicians appreciation of chronic breathlessness and use of opioids
Smallwood, et al. (2017) Junior doctors’ attitudes to opioids for refractory breathlessness in patients with advanced chronic obstructive pulmonary disease. Intern Med J. 47(9):1050-1056.
Evidence 10. French survey
Carette, H. et al. (2019) Prevalence and management of chronic breathlessness in COPD in a tertiary care center. BMC Pulm Med 19, 95.
Evidence 11. International position statement
Sobanski, PZ et al. (2020) Palliative Care for people living with heart failure – European Association for Palliative Care Task Force expert position statement, Cardiovascular Research, https://doi.org/10.1093/cvr/cvz200
Evidence 12. Honorary Clinical Associate Professor, Glasgow University.
Improved palliative care in Scotland for people with advanced heart failure – Testimonial
Evidence 13. Senior consultant in Respiratory medicine at ULSS 4 Veneto Orientale, Italy. Improved palliative care for people with lung disease in Italy - Testimonial
- Submitting institution
- The University of Hull
- Unit of assessment
- 3 - Allied Health Professions, Dentistry, Nursing and Pharmacy
- Summary impact type
- Health
- Is this case study continued from a case study submitted in 2014?
- No
1. Summary of the impact
Research in the Hull Academic Vascular Surgical Unit (AVSU) has directly impacted policy, practice and clinical education in the management of intermittent claudication (IC) a condition that affects 5% of the western adult population. Invasive revascularisation was frequently the first-line intervention for IC, with outcomes assessed using objective measures. The AVSU has undertaken seminal research that identified the best quality of life instruments for outcome assessment in IC, which are now recommended by international reporting standards. The Hull unit demonstrated clinical and cost effectiveness of supervised exercise programmes (SEP), compared with invasive revascularisation, stimulating a global revolution in IC management with the National Institute for Health and Care Excellence now recommending SEP as the first-line intervention.
2. Underpinning research
Historically, intermittent claudication (IC) was managed conservatively or by invasive revascularisation (angioplasty or bypass surgery). Objective measures of organ perfusion such as ankle pressures or treadmill walking distances were used to assess disease progression and treatment effectiveness. The Academic Vascular Surgical Unit (AVSU), led by Professor Ian Chetter, has worked for over 2 decades to:
ensure patient-reported quality of life (QoL) outcomes are prioritised and regarded as the standard for outcome assessment in both clinical practice and new clinical trials ( 2.1) and;
provide conclusive evidence to support the use of supervised exercise programmes (SEP) as the global, first-line, intervention for claudication rather than invasive revascularization (2.2) Furthermore, the work of the AVSU has underpinned international reporting standards, clinical guidelines and associated training, and has led to significant patient benefit.
Key research findings
2.1 Identification of the most appropriate generic and disease specific QoL instruments for patients with IC
Based on a long-standing programme of research in Hull, the team found the Short Form 36 and EuroQoL instruments were the most appropriate generic QoL tools in terms of validity, reliability and responsiveness for use with patients suffering with IC [1]. Research findings demonstrated that the correlation between clinical indicators of disease severity and QoL was not sufficiently close to assume that changes in the clinical indicators resulted in reciprocal changes in QoL, and thus it was concluded that QoL must be analysed independently [2]. The 2003 systematic review by the AVSU [1] also highlighted that disease-specific instruments for patients with claudication had undergone very limited evaluation. A subsequent prospective cohort study of 70 claudicants, identified the VascuQol tool as the most appropriate disease-specific QoL instrument for this patient group [3].
2.2 Demonstration that supervised exercise programmes (SEP) were more effective at management of IC compared with surgical interventions.
Using both the generic and disease-specific outcome measures, the AVSU demonstrated in a non-randomised, controlled, trial of 70 claudicants, that SEP was both clinically- and cost-effective compared with conservative medical therapy and that the disease-specific, VascuQol tool was again the most powerful [4]. In 2010, the AVSU published early outcomes from the first adequately powered (n=178), randomized, controlled, trial comparing SEP, angioplasty (a commonly used surgical intervention) and SEP plus angioplasty. Based on clinical and QoL changes at 3 months, it was concluded that SEP should be the primary treatment for claudicants and that angioplasty should always be preceded by a SEP [5]. The AVSU’s subsequent work, including long term follow-up of this cohort, health economic analysis and Cochrane systematic review has confirmed the original conclusions and also identified the supplementary benefits of SEP in terms of general physical activity, balance and reduction in falls risk [6].
Our studies have identified that the “Achilles heel” of SEP is patient uptake, which can be as low as 25%. Qualitative research from the AVSU has identified the 3-month duration of the intervention as a frequently cited reason for non-participation. To address these issues, the AVSU is currently investigating the acceptability, efficacy and patient perceptions of a concentrated, short duration (6 weeks), anaerobic, high intensity SEP funded by an NIHR RfPB grant (£149,292) to ensure maximum patient benefit.
3. References to the research
1. Mehta T, Venkata Subramaniam A, Chetter I, McCollum P. Disease-specific quality of life assessment in intermittent claudication: review. Eur J Vasc Endovasc Surg. 2003 Mar;25(3):202-8
2. Mazari FA, Carradice D, Rahman MN, Khan JA, Mockford K, Mehta T, McCollum PT, Chetter IC. An analysis of relationship between quality of life indices and clinical improvement following intervention in patients with intermittent claudication due to femoropopliteal disease. J Vasc Surg. 2010 Jul;52(1):77-84.
3. Mehta T, Venkata Subramaniam A, Chetter I, McCollum P. Assessing the validity and responsiveness of disease-specific quality of life instruments in intermittent claudication. Eur J Vasc Endovasc Surg. 2006 Jan;31(1):46-52.
4. Lee HL, Mehta T, Ray B, Heng MS, McCollum PT, Chetter IC. A non-randomised controlled trial of the clinical and cost effectiveness of a Supervised Exercise Programme for claudication.
Eur J Vasc Endovasc Surg. 2007 Feb;33(2):202-7
5. Mazari FA, Khan JA, Carradice D, Samuel N, Abdul Rahman MN, Gulati S, Lee HL, Mehta TA, McCollum PT, Chetter IC. Randomized clinical trial of percutaneous transluminal angioplasty, supervised exercise and combined treatment for intermittent claudication due to femoropopliteal arterial disease. Br J Surg. 2012 Jan;99(1):39-48
6. Lane R, Harwood A, Watson L, Leng GC. Exercise for intermittent claudication. Cochrane Database Syst Rev. 2017 Dec 26;12:CD000990.
Grants
The AVSU has been awarded almost £8 million in national and international peer reviewed funding for research into claudication, exercise and peripheral arterial disease, including the following major awards:
George Davies Early Career award (P Coughlin) 2014 £150,000
NIHR HTA Bypass v Angioplasty in Severe Ischaemia of the Leg (BASIL-2) trial – co-applicant with Prof A Bradbury (Birmingham); 2014 – 2023; £2,024,094
NIHR HTA Balloon vs Stenting in Severe Ischaemia of the Leg (BASIL-3) trial; co-applicant with Prof A Bradbury (Birmingham); 2015-2021; £1,938,633
NIHR HTA Multiple Interventions for Diabetic Foot Ulcer Treatment (MIDFUT) trial; co-applicant with Mr D Russell (Leeds); 2017-2022; £1,787,716
NIHR EME Does Neuromuscular Electrical Stimulation Improve the Absolute Walking Distance in Patients with Intermittent Claudication (NESIC) compared to best available treatment? A Multicentre Randomised Controlled Study; co-applicant with Prof A Davies (London); 2017-2021; £1,073,008
NIHR Senior Investigator (Prof I Chetter) 2018-2023; £75,000
NIHR RfPB High Intensity Interval Training In pATiEnts with intermittent claudication (INITIATE) study; Chief Investigator Prof I Chetter; 2019-2021; £149,292
Since 2014, members of the AVSU have won the Vascular Society of Great Britain and Ireland’s Sol Cohen Prize on 2 occasions and the Richard Wood Prize once. Prof Chetter is the Royal College of Surgeons of England, National Research Speciality Vascular Lead, as well as being the current Chair of the Vascular Society of Great Britain and Ireland’s Research Committee.
4. Details of the impact
Based on the research from the AVSU at Hull there has been an international step-change in both the assessment of outcomes and the shift to non-interventional management of IC. This has resulted in significant benefits for patients, practitioners and health care institutions alike. Specifically, there has been a significant change to using patient-focused outcomes as a measure of treatment for IC ( 4.1); widespread adoption of SEP as a non-invasive treatment alternative for IC management ( 4.2); and incorporation of SEP into multiple national and international training guidelines ( 4.3).
4.1 A paradigm shift to patient-focused outcomes in recent and ongoing trials
Research from Hull has underpinned a number of international guidelines that now recommend the use of both generic and disease-specific QoL outcome measures to assess efficacy of intervention in IC ( Evidence 1). Furthermore, our research supported the prioritization of the generic and disease-specific outcome measures in the guidelines update for the management of peripheral arterial disease in 2015 ( Evidence 2). Additionally, Prof Chetter was/is a member of the Trial Management Groups for 3 recently completed/ongoing National Institute of Health Research (NIHR) trials which have all incorporated patient-focused outcome measures. The NIHR HTA “ Bypass v Angioplasty in Severe Ischaemia of the Leg” (BASIL 2) (completed with 345 participants) and BASIL3 (Ongoing until May 2021 with recruitment aimed at 477 participants) trials include generic (EuroQol 5D, Short Form12) and disease-specific (VascuQol, ( Evidence 3i,.ii). The completed NIHR EME “ Does Neuromuscular Electrical Stimulation Improve the Absolute Walking Distance in Patients with Intermittent Claudication” **(**NESIC) trial (192 participants) includes generic (EQ5D, Short Form 36) and disease specific (intermittent claudication questionnaire) as outcome measures ( Evidence 3iii).
4.2 Widespread uptake of SEP as first line intervention for IC
Hull’s research is an essential component of the National Institute for Health and Care Excellence (NICE) clinical guidelines 147 (Diagnosis and management of peripheral arterial disease) which recommend that SEP should be offered as first-line intervention for all patients with IC, replacing angioplasty that should only be offered if a SEP has not produced satisfactory symptomatic improvement ( Evidence 4). Patients that have received SEP report that they are able to walk much “ further without experiencing pain” (Evidence 5i) and that their “ quality of life has improved considerably” (Evidence 5ii). International guidelines in North America, proposed jointly by the American Heart Association and American College of Cardiology ( Evidence 6) and Europe ( Evidence 1) advocate the same treatment plans again based on Hull’s published work.
During the ongoing coronavirus pandemic the Circulation Foundation, the UK's only national peripheral arterial disease charity, recognized the AVSU’s longstanding expertise in the area of SEP research, and asked the unit to produce a booklet detailing home-based SEP for patients in isolation ( Evidence 7i). Ms Rachel Bell, Chair of the Circulation Foundation stated, “... the research undertaken in Hull by Prof Chetter’s team has a huge impact upon our work and is incredibly beneficial to the mission of our charity” ( Evidence 7ii).
4.3 Impacts on healthcare practitioner training and service providers
The UK Specialty Advisory Committee for Vascular Surgical Training has, since 2018, included SEP as the first line therapy for IC into the recent additions of the UK curricula for training vascular surgeons, nurses and podiatrists, thus all new trainees in the breadth of disciplines involved in treating IC are implementing the practice defined by Hull’s work ( Evidence 8i, ii, iii). The Vascular Society of Great Britain & Ireland (VSGBI) produced a document entitled “ The provision of services for patients with vascular disease 2018”, which sets out the principles by which a vascular service should deliver optimal patient care in the UK. This publication was based on the research from the AVSU in Hull and advocates offering SEP to all patients with IC ( Evidence 9). The Past-president of the VSGBI states that the AVSU’s work on SEP has “ revolutionized the thinking of practitioners and available treatment methods” ( Evidence 10). The new training regimens are cost-effective and represent a non-invasive alterative not previously available. Research from Hull highlighted the huge variability in the provision of SEP for IC, which may only be provided by as few as 42% of UK vascular units. As a result of these findings in 2018 NICE released a Quality statement identifying the provision of SEP for IC as a high priority area for quality improvement across the UK ( Evidence 11). Furthermore, the training has been adopted across Europe as this fulfills the current best-practice guidelines ( Evidence 12) .
Similarly, in response to Public Health England’s “Getting It Right First Time (GIRFT)” programme highlighting lack of timely access to services for patients with peripheral arterial disease ( Evidence 13) the Vascular Society of Great Britain and Ireland produced a Quality Improvement Framework(QIF) in 2019 aimed at providing a best practice clinical care pathway for peripheral arterial disease. This QIF includes a target of >90% UK vascular units to provide commissioned SEP within 1 hour travel time for patients with IC ( Evidence 14)
5. Sources to corroborate the impact
Evidence 1. European Society of Cardiology/European Society of Vascular Surgery Guideline on the Diagnosis and Treatment of Peripheral Arterial Disease. Eur J Vasc Endovasc Surg. 2018; 55: 305-68
Evidence 2. An Update on Methods for Revascularization and Expansion of the TASC Lesion Classification to Include Below-the-Knee Arteries: A Supplement to the Inter-Society Consensus for the Management of Peripheral Arterial Disease (TASC II). The TASC Steering Committee, Michael R Jaff. Vascular Medicine 20; 5 465-478
Evidence 3. Trials using assessment of outcomes and non-interventional management of IC.
i. BASIL-2 Trial Investigators. Bypass versus angio plasty in severe ischaemia of the leg - 2 (BASIL-2) trial: study protocol for a randomised controlled trial. Trials. 2016 Jan 6;17:11.
ii. BASIL-3 Collaborative Group. BAlloon versus Stenting in severe Ischaemia of the Leg-3 (BASIL-3): study protocol for a randomised controlled trial. Trials. 2017 May 19;18(1):224.
iii. Lawton R et al. . A multicenter randomized controlled study to evaluate whether neuromuscular electrical stimulation improves the absolute walking distance in patients with intermittent claudication compared with best available treatment. J Vasc Surg. 2019 May;69(5): 1567-1573.
Evidence 4. NICE Clinical guideline 147. Lower limb peripheral arterial disease; diagnosis and management. Published November 2019. www.nice.org.uk/guidence/cg147/evidence/full-guideline-pdf-186865023
Evidence 5i Testimonial. Patient A.
Evidence 5ii Testimonial. Patient B.
Evidence 6. 2016 AHA/ACC Guideline on Management of Patients with Lower Extremity Peripheral Arterial Disease: A Report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines.
https://doi.org/10.1161/CIR.0000000000000470.
Evidence 7i. https://www.circulationfoundation.org.uk/news/covid-19-special-configure
Evidence 7ii. Testimonial. Chair of Circulation Foundation
Evidence 8. Training curricula promoting SEP as first line treatment for Intermittent Claudication
i. Intercollegiate Surgical Curriculum Programme - Vascular Surgery Curriculum
https://www.gmc-uk.org/-/media/documents/vascular-inc_-trauma-tig-approved-jul-17_pdf-72509215.pdf
ii. Society of Vascular Nurses – Advanced Vascular Nurse Competencies
https://www.svn.org.uk/wp-content/uploads/2014/12/SVN-advanced-compet-final-version.pdf
iii. College of Podiatry; https://cop.org.uk/api/documentlibrary/download?documentId=280
Evidence 9. The Provision of Services for patients with Vascular Disease 2018 https://www.vascularsociety.org.uk/\_userfiles/pages/files/Document%20Library/VS%202018%20Final.pdf
Evidence 10. Testimonial. Immediate Past-President of the Vascular Society of Great Britain and Ireland
Evidence 11. Quality statement from NICE www.nice.org.uk/guidance/qs52/chapter/Quality-statement-3-Supervised-exercise-programmes
Evidence 12. European adoption of curricula
Evidence 13 GIRFT
Evidence 14 PAD QIF
https://www.vascularsociety.org.uk/\_userfiles/pages/files/Newsletters/PAD%20QIF%20April
%202019(1).pdf