ClinicalTrials.gg
CompletedNCT03264924IPAiRUpdated Feb 20, 2020

Improving Physical Activity in Rehabilitation

An observational study in Cardiovascular Diseases, Pulmonary Disease and Chronic Obstructive Pulmonary Disease, sponsored by Liverpool Heart and Chest Hospital NHS Foundation Trust. Completed at 1 site in United Kingdom. Per ClinicalTrials.gov, last updated 2020-02-20.

Sponsored by Liverpool Heart and Chest Hospital NHS Foundation Trust · Observational

Study type
Observational
Model
Case-only
Time perspective
Prospective
Enrollment
82
Sex
All
01

Study summary

Cardiac rehabilitation is a programme of exercise and health advice for people recovering from heart disease. Pulmonary rehabilitation is a similar programme for people with chronic lung disease. For both groups of patients, taking part in rehabilitation can lead to improvements in health and well-being. However, only 30% of patients complete their agreed rehabilitation programme. This costs the NHS millions of pounds every year. This project aims to investigate whether a motivational-based intervention, underpinned by self-determination theory and motivational interviewing, will enable staff to encourage more patients to take part in physical activity (PA). Staff will be trained with the new communication skills and will then deliver the rehabilitation programme. The session content will not change, just the way in which staff speak to patients.

This will be a two-phase study. Phase A will take a qualitative approach collect patient and staff feedback about the current rehabilitation programme, before using this information to develop and pilot the intervention. Phase B will then assess the feasibility of the intervention within cardiac and pulmonary rehabilitation. Participants agreeing to take part in the phase B will be required to complete an interview and questionnaire at three time points. Patients' personal opinions of the programmes will be extremely important in discovering what can be done to improve rehabilitation for future participants.

The main objectives will be to look at whether the intervention increases the number of patients taking part in physical activity. The investigators plan to establish how much physical activity patients take part in whilst they are in rehabilitation, as well as once they have left the programme. This is why participants will be interviewed three and six months after they have finished their rehabilitation programme.

Read the detailed description

Background and Rationale

Description of research questions and justification for undertaking the trial Cardiac Rehabilitation (CR) is an effective treatment for CHD and CVD patients, boasting a range of physiological and psychological benefits as well as lowering mortality and risk of secondary cardiac incidents. Despite the aforementioned benefits of CR attendance, uptake and adherence to CR remain inadequate, with cross-cultural surveys demonstrating that only 10-30% of eligible CR patients engage in such programmes. These poor levels of CR participation have been previously attributed to low referral rates amongst healthcare providers, however even within the 30% of eligible patients who become CR participants, the attrition rate is currently 50% and only 20% of attendees report long-term behavioural change. The lack of subsequent engagement with the desired adaptive behaviours is at a great cost to the National Health Service (NHS), with the cost of delivering a "good quality CR service" at £477 per patient and the average cardiac readmission costing £3637. Although physical activity (PA) has been demonstrated to reduce the risk of secondary cardiac incidents, 80% of CR patients fail to maintain regular habitual PA within the first year following a course of CR..

Similarly, Pulmonary Rehabilitation (PR) has been demonstrated to be an effective non-pharmacological intervention for COPD patients, and aims to return the patient to independent functioning, reduce disability and improve quality of life. The clinical conditions for which PR is routinely offered result in progressive loss of function over time. Therefore, any initial beneficial effects of a PR programme are likely to diminish over the subsequent eighteen months. Within this time period however, patients who complete PR have significantly greater quality of life, PA capacity, and fewer days in hospital relative to participants who do not participate in PR . Despite these benefits, uptake and adherence to PR is extremely problematic, with studies demonstrating that less than 50% of patients referred to PR will complete the course. Additionally, adherence rates reported in randomised controlled trials tend to be higher, so even this bleak estimate of adherence may be inflated.

Background Information

A commonality between CR and PR is the patients' participation in physical activity. Regular participation in physical activity (PA) reduces all-cause mortality by 30%, and can help to manage over 20 chronic conditions, including CHD, stroke, type 2 diabetes, cancer, obesity, mental health problems and musculoskeletal conditions. COPD patients' engagement in low-to-moderate intensity daily PA has been shown to enhance their cardiorespiratory health and ability for exertion, and reduce dyspnoea symptoms . Additionally, PA reduces cardiac mortality by 31%, and has been demonstrated to lower blood pressure, and increase 'good' cholesterol in cardiac patients. These effects occur through engagement in relatively low levels of activity: 30 minutes, five times per week.

Despite these far-reaching benefits, patients are less likely than non-symptomatic individuals to engage with PA. In 2015, a report by the Academy of Medical Royal Colleges portrayed PA as a 'miracle cure', which despite having a better disease risk reduction than many drugs, is often overlooked by healthcare providers and their patients. Worryingly, with the number of older people with multiple medical problems increasing rapidly, less than a third of UK adults over the age of 65 meet the minimum levels of PA.

Theoretical Underpinning

Motivation is a key component of behaviour change. With the focus on the motivational aspects of behaviour change in mind, Self-Determination Theory (SDT) has become an increasingly commonly used theory to design health behaviour change interventions . According to SDT individuals adopt or change behaviour on the basis of internal satisfaction and fulfilment, termed as intrinsic motivation. Alternatively, individuals are less likely to adopt or change behaviour when a reward or inducement provided by an external person is used to compel a person to act, known as extrinsic motivation. Environments that support intrinsic motivation optimise behavioural effort, persistence and performance. In contrast, environments that coerce through rewards serve to diminish behavioural effort, persistence and performance .

Previous SDT research has demonstrated that intrinsic motivation towards treatment is positively associated with adherence to medical regimes among people with chronic illnesses, attendance/involvement in an addiction treatment program, and long-term maintenance of weight loss among morbidly obese patients. Within physical activity research, intrinsic motivation has been found to be strongly associated with physical activity engagement. Similarly, increases in intrinsic motivation from pre- to post- exercise referral scheme significantly predicted greater adherence to the scheme as well as greater sports-related physical activity. The dense body of SDT research in health, including physical activity, suggests that interventions underpinned by SDT, should develop and support intrinsic motivation in order to optimally motivate engagement with PA.

Motivational interviewing (MI) is a method of strengthening personal motivation for change, and has been shown to be a promising approach for promoting health behaviour change in a number of contexts including physical activity promotion. MI comprises several techniques used by practitioners to facilitate behaviour change in patients. Some techniques focus on the content of the intervention, whereas others focus on techniques reflect the practitioner's interpersonal style of delivery. One of the primary roles the MI approach is to evoke the patient's arguments for change and to reduce their own arguments for not changing.

Research Critique

Motivational theories that inform behaviour change (for example, SDT) do not typically feed through to into instructor training programmes, particularly in clinical rehabilitation settings. Therefore, a significant limitation of motivational theory to date is its ability to be translated into clinical practice. Accordingly, it is important that attempts are made to ensure motivational theory is translated effectively in clinical practice in order to increase patients' motivation for physical activity uptake and adherence in cardiac and pulmonary rehabilitation. The current research, therefore, will combine a well-established motivational theory (i.e., Self-Determination Theory) with established motivational practice (i.e., Motivational Interviewing) in an attempt to integrate theory and practice, offsetting Ntoumanis et al's. claims that contemporary motivation research does not typically feed through to instructor programmes.

Previous researches aiming to increase physical activity motivation in rehabilitation have predominantly focused on interventions at an individual-level. Whilst it is important not to completely disregard this approach, the NHS rehabilitation setting is typically a place where clinicians have to facilitate sessions on a group-level. Furthermore, the NHS may not have the resources to provide the sufficient level of treatment fidelity that one-to-one approaches require in order to be successful. Therefore, the current research will equip clinicians with skills to be effective for increasing group-level physical activity motivation, as well as on an individual level.

Motivational-based intervention research for changing increasing physical activity behaviour in clinical rehabilitation settings has predominantly focused on intervention effectiveness for changing behavioural outcomes. However, the intervention development, delivery and content are not often reported, therefore, limiting the applied utility and replication of the intervention itself. As such, the current research will pilot and feasibly investigate the development of a motivational-based intervention. Doing so will provide a more nuanced understanding for motivating cardiac and pulmonary patients' uptake and adherence to physical rehabilitation activity. Such information would also be crucial for informing a future RCT trial.

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Conditions studied

  • Cardiovascular Diseases
  • Pulmonary Disease
  • Chronic Obstructive Pulmonary Disease

Keywords

  • physical activity
  • motivation
  • behaviour change
03

In context

Cardiovascular Diseases

5,368 studies on the registry are indexed under Cardiovascular Diseases; 939 are open to participants now.

This study's enrollment of 82 is below the median of 506 across 1,572 observational studies indexed under Cardiovascular Diseases.

Browse Cardiovascular Diseases studies →

Lead sponsor

Liverpool Heart and Chest Hospital NHS Foundation Trust is the lead sponsor of 33 studies on the registry; 6 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Sampling method
Non-probability sample

Study population

Cardiac and pulmonary rehabilitation patients and staff.

Eligibility criteria

  1. Inclusion criteria - Patients will be included when they enrol into cardiac and pulmonary rehabilitation programme due to heart disease or .
  2. Exclusion criteria - They will be excluded if they have previously completed a cardiac/pulmonary rehabilitation programme.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

COPD

Chronic obstructive pulmonary disease: long-term lung disease that makes it hard to breathe out, including emphysema and chronic bronchitis.

05

Study design

Observational model
Case-only
Time perspective
Prospective
Enrollment
82 participants (actual)
Patient registry
No

Groups and cohorts

  • Phase A, Study One

    Semi-structured interviews to investigate staff and patients' experiences of participating and facilitating cardiac and pulmonary rehabilitation.

  • Phase A, Study Two

    Focus group with rehabilitation stakeholders to discuss perceived feasibility and acceptability of the intervention design.

  • Phase A, Study Three

    Pilot of the intervention, using a group of exercise physiologists external to the community rehabilitation services.

    Behavioral: IPAIR

  • Phase B

    Community rehabilitation service staff will participate in the intervention. Patients will then participate in the rehabilitaiton programme. Physical activity levels of patients will be recorded throughout the rehabilitation programme and for six months post-discharge. Qualitative and quantitative follow-up sessions will patients will take place at discharge (8 weeks after start of rehabilitation), and three and six months post-discharge.

    Behavioral: IPAIR

Interventions

  • BehavioralIPAIR

    Motivational interview training

    Also known as: Motivational interview training

06

What researchers measure

Primary outcomes

  1. Percentage enrolment and attendance to rehabilitation

    Measure of percentage enrolment and attendance to rehabilitation.

    Time frame: June 2018-February 2019.

Secondary outcomes

  1. Qualitative Impact Evaluation

    Semi-Structured interview with patients and staff.

    Time frame: June 2018-February 2019. Interviews will be conducted upon discharge (on average 8 weeks following admission to rehabilitation), 3 months post-discharge, 6 months post-discharge

  2. Treatment Self Regulation Questionnaire (Exercise)

    The treatment self-regulation questionnaire (TSRQ) assessed autonomous and controlled reasons for participation in the program. The TSRQ has 18 item stems such as: "I am staying in the program because...", followed by several reasons that vary in the extent to which they represent autonomous regulation. An example of more controlled reasons are:"I feel like a failure if I don't". An example of more autonomous reasons are "I believe it's the best way to help myself." Each reason was rated on a 7-point scale ranging from not true at all to very true. Typically, the responses on the autonomous items are summed to form the autonomous regulation score (range 5-35) for the target behavior while responses on the controlled items are summed to form the controlled regulation score (range 8-56). These two subscale scores are used separately.

    Time frame: June 2018-February 2019.Questionnaires will be completed upon admission to rehabilitation, discharge (on average 8 weeks following admission to rehabilitation), 3 months post-discharge, 6 months post-discharge.

  3. International Physical Activity Questionnaire Short Version (IPAQ)

    The IPAQ measures the level of PA across four domains; leisure time PA, domestic and gardening (yard) activities, work- related PA, and transport- related PA. In each domain, the duration (in minutes) and frequency (days) of PA including sitting, walking, moderate and vigorous PA are self-reported.

    Time frame: June 2018-February 2019.Questionnaires will be completed upon admission to rehabilitation, discharge (on average 8 weeks following admission to rehabilitation), 3 months post-discharge, 6 months post-discharge.

  4. EuroQol, five dimensions, three levels (EQ-5D-3L)

    Health related quality of life will be measured using the EuroQol, five dimensions, three levels (EQ-5D-3L). The EQ-5D-3L determines self-assessed problems across five items of mobility, self-care, usual activities, pain/dis- comfort and anxiety/depression. Each item has three levels of severity: 'no problems', 'some problems' and 'severe problems'.

    Time frame: June 2018-February 2019.Questionnaires will be completed upon admission to rehabilitation, discharge (on average 8 weeks following admission to rehabilitation), 3 months post-discharge, 6 months post-discharge.

  5. Perceived Competence Scale (Exercising Regularly)

    The Perceived Competence Scale (PCS) assesses the degree to which patients feel confident about being able to make and maintain their participation in the rehabilitation programme and PA.

    Time frame: June 2018-February 2019.Questionnaires will be completed upon admission to rehabilitation, discharge (on average 8 weeks following admission to rehabilitation), 3 months post-discharge, 6 months post-discharge.

  6. Perceived Environmental Supportiveness Scale (PESS)

    Markland and Tobin (2010) developed the Perceived Environmental Supportiveness Scale (PESS) to assess perceptions of need support provided by exercise practicioners to exercise referral scheme clients. The PESS was designed to explicitly assess the three dimensions of support (autonomy support, structure and involvement) and comprises 15 items with five items assessing each of the three dimensions.

    Time frame: June 2018-February 2019.Questionnaires will be completed upon admission to rehabilitation, discharge (on average 8 weeks following admission to rehabilitation), 3 months post-discharge, 6 months post-discharge.

  7. Relatedness to Others in Physical Activity (ROPAS) Scale

    The Relatedness to Others in Physical Activity Scale (ROPAS) (Wilson \& Bengoechea, 2010) will be used to assess participants' perceptions of the group climate. Participants responded to 6-items assessing respondents' perception of meaningful connection and belongingness to other group members. Items are rated on a 6-pt likert scale and a priori criteria for summary scores are set at ≥4.5. An example item includes, "I have developed a close bond with others."

    Time frame: June 2018-February 2019.Questionnaires will be completed upon admission to rehabilitation, discharge (on average 8 weeks following admission to rehabilitation), 3 months post-discharge, 6 months post-discharge.

  8. Test of Exercise Capacity

    Patients will complete either an Incremental Shuttle Walking Test (ISWT), six-minute walk test (6MWT), or bike test. In all cases, patients' perceived exertion will be assessed with the 15-point single-item Rating of Perceived Exertion (RPE; Borg, 1998), which ranges from 6 (no exertion at all) to 20 (maximal exertion).

    Time frame: Test will be completed upon admission to rehabilitation, and at discharge (on average 8 weeks following admission to rehabilitation).

  9. Attendance at Rehabilitation Sessions

    The number of sessions, over an average of 8 weeks, that each participant attends will be recorded.

    Time frame: Throughout rehabilitation programme (on average 8 weeks).

07

Study locations

1 site
  • Liverpool Heart and Chest Hospital NHS Foundation Trust
    Liverpool, Merseyside L14 3PE, United Kingdom
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References and documents

Publications

  • Arnold E, Bruton A, Ellis-Hill C. Adherence to pulmonary rehabilitation: A qualitative study. Respir Med. 2006 Oct;100(10):1716-23. doi: 10.1016/j.rmed.2006.02.007. Epub 2006 Mar 22. PubMed 16554147 ↗
  • Bjarnason-Wehrens B, Bott D, Benesch L, Bischoff KO, Buran-Kilian B, Gysan D, Hollenstein U, Mayer-Berger W, Wilkniss R, Sauer G. Long-term results of a three-week intensive cardiac out-patient rehabilitation program in motivated patients with low social status. Clin Res Cardiol. 2007 Feb;96(2):77-85. doi: 10.1007/s00392-007-0461-0. Epub 2006 Dec 14. PubMed 17160566 ↗
  • British Heart Foundation. (2015). The National Audit of Cardiac Rehabilitation Annual Statistical Report 2015. London. Retrieved from http://www.cardiacrehabilitation.org.uk/docs/2007.pdf
  • British Thoracic Society (BTS). (2013). BTS Guideline on Pulmonary Rehabilitation in Adults. An International Journal of Respiratory Medicine, 68(2), ii1-31. https://doi.org/10.1136/thoraxjnl-2013-203808
  • Chan DK, Lonsdale C, Ho PY, Yung PS, Chan KM. Patient motivation and adherence to postsurgery rehabilitation exercise recommendations: the influence of physiotherapists' autonomy-supportive behaviors. Arch Phys Med Rehabil. 2009 Dec;90(12):1977-82. doi: 10.1016/j.apmr.2009.05.024. PubMed 19969157 ↗
  • Clark RA, Conway A, Poulsen V, Keech W, Tirimacco R, Tideman P. Alternative models of cardiac rehabilitation: a systematic review. Eur J Prev Cardiol. 2015 Jan;22(1):35-74. doi: 10.1177/2047487313501093. Epub 2013 Aug 13. PubMed 23943649 ↗
  • De Amici D, Klersy C, Ramajoli F, Brustia L, Politi P. Impact of the Hawthorne effect in a longitudinal clinical study: the case of anesthesia. Control Clin Trials. 2000 Apr;21(2):103-14. doi: 10.1016/s0197-2456(99)00054-9. PubMed 10715508 ↗
  • Deci, E. L., & Ryan, R. M. (2008). Facilitating optimal motivation and psychological well-being across life's domains. Canadian Psychology/Psychologie Canadienne, 49(1), 14-23. https://doi.org/10.1037/0708-5591.49.1.14
  • Hardcastle SJ, Fortier M, Blake N, Hagger MS. Identifying content-based and relational techniques to change behaviour in motivational interviewing. Health Psychol Rev. 2017 Mar;11(1):1-16. doi: 10.1080/17437199.2016.1190659. Epub 2016 Jun 2. PubMed 27189713 ↗
  • Hospes G, Bossenbroek L, Ten Hacken NH, van Hengel P, de Greef MH. Enhancement of daily physical activity increases physical fitness of outclinic COPD patients: results of an exercise counseling program. Patient Educ Couns. 2009 May;75(2):274-8. doi: 10.1016/j.pec.2008.10.005. Epub 2008 Nov 25. PubMed 19036552 ↗
  • Craig P, Dieppe P, Macintyre S, Michie S, Nazareth I, Petticrew M; Medical Research Council Guidance. Developing and evaluating complex interventions: the new Medical Research Council guidance. BMJ. 2008 Sep 29;337:a1655. doi: 10.1136/bmj.a1655. PubMed 18824488 ↗
  • Moore SM, Charvat JM, Gordon NH, Pashkow F, Ribisl P, Roberts BL, Rocco M. Effects of a CHANGE intervention to increase exercise maintenance following cardiac events. Ann Behav Med. 2006 Feb;31(1):53-62. doi: 10.1207/s15324796abm3101_9. PubMed 16472039 ↗
  • National Institute for Health and Clinical Excellence (NICE). (2013). Cardiac rehabilitation services: commissioning guide. London.
  • Ntoumanis N, Thogersen-Ntoumani C, Quested E, Hancox J. The effects of training group exercise class instructors to adopt a motivationally adaptive communication style. Scand J Med Sci Sports. 2017 Sep;27(9):1026-1034. doi: 10.1111/sms.12713. Epub 2016 Jun 10. PubMed 27283879 ↗
  • Prestwich, A., Webb, T. L., & Conner, M. (2015). Using theory to develop and test interventions to promote changes in health behaviour: Evidence, issues, and recommendations. Current Opinion in Psychology, 5(February), 1-5. https://doi.org/10.1016/j.copsyc.2015.02.011
  • Rahman RJ, Thogersen-Ntoumani C, Thatcher J, Doust J. Changes in need satisfaction and motivation orientation as predictors of psychological and behavioural outcomes in exercise referral. Psychol Health. 2011 Nov;26(11):1521-39. doi: 10.1080/08870446.2010.538849. Epub 2011 Jun 16. PubMed 22111661 ↗
  • Russell KL, Bray SR. Promoting self-determined motivation for exercise in cardiac rehabilitation: the role of autonomy support. Rehabil Psychol. 2010 Feb;55(1):74-80. doi: 10.1037/a0018416. PubMed 20175637 ↗
  • Silva MN, Vieira PN, Coutinho SR, Minderico CS, Matos MG, Sardinha LB, Teixeira PJ. Using self-determination theory to promote physical activity and weight control: a randomized controlled trial in women. J Behav Med. 2010 Apr;33(2):110-22. doi: 10.1007/s10865-009-9239-y. Epub 2009 Dec 11. PubMed 20012179 ↗
  • Singh SJ, Smith DL, Hyland ME, Morgan MD. A short outpatient pulmonary rehabilitation programme: immediate and longer-term effects on exercise performance and quality of life. Respir Med. 1998 Sep;92(9):1146-54. doi: 10.1016/s0954-6111(98)90410-3. PubMed 9926171 ↗
  • Speake H, Copeland RJ, Till SH, Breckon JD, Haake S, Hart O. Embedding Physical Activity in the Heart of the NHS: The Need for a Whole-System Approach. Sports Med. 2016 Jul;46(7):939-46. doi: 10.1007/s40279-016-0488-y. PubMed 26942468 ↗
  • Teixeira PJ, Carraca EV, Markland D, Silva MN, Ryan RM. Exercise, physical activity, and self-determination theory: a systematic review. Int J Behav Nutr Phys Act. 2012 Jun 22;9:78. doi: 10.1186/1479-5868-9-78. PubMed 22726453 ↗
  • The Academy of Medical Royal Colleges. (2015). Exercise: The miracle cure and the role of the doctor in promoting it. Report from the Academy of Medical Royal Colleges. London. Retrieved from http://www.aomrc.org.uk
  • Yohannes AM, Doherty P, Bundy C, Yalfani A. The long-term benefits of cardiac rehabilitation on depression, anxiety, physical activity and quality of life. J Clin Nurs. 2010 Oct;19(19-20):2806-13. doi: 10.1111/j.1365-2702.2010.03313.x. Epub 2010 Aug 24. PubMed 20738450 ↗

Individual participant data

Plan to share: No — There is no plan to share IPD

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Jul 2017 to primary completion in Jan 2020, 30 months.

Of 580 non-industry observational studies under Cardiovascular Diseases, half reached primary completion within 70 months of starting (the median), counting those still running; a quarter within 28 and three quarters within 196. This study's 30 months is below that.

Counting every sponsor, half of 664 studies reached it within 61 months; a quarter within 24 and three quarters within 192.

Cardiovascular Diseases covers many different conditions, not one, so the studies compared here vary widely. Read these figures as a rough guide.

How these figures are worked out, and which studies are left out of them.

Registered
Jun 16, 2017
First posted
Aug 29, 2017
StartActual
Jul 24, 2017
Primary completionActual
Jan 30, 2020
CompletionActual
Jan 30, 2020
Last update
Feb 20, 2020
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Feb 20, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT03264924
Lead sponsor
Liverpool Heart and Chest Hospital NHS Foundation Trust
Collaborators
Edge Hill University
Responsible party
Sponsor
First posted
Aug 29, 2017
Start date
Jul 24, 2017
Primary completion
Jan 30, 2020
Completion
Jan 30, 2020
Last update
Feb 20, 2020

Study contacts

Adrian W Midgley, PhD
principal investigator · Liverpool Heart and Chest Hospital NHS Foundation Trust/ Edge Hill University
Bashir Matata, PhD
principal investigator · Liverpool Heart and Chest Hospital NHS Foundation Trust

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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