Feasibility Study of Exercise Training for Abdominal Aortic Aneurysm Disease
Recruitment status was Recruiting
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Purpose
An abdominal aortic aneurysm (AAA) is a weakened and enlarged area in the abdominal aorta, which is a large blood vessel in the abdomen. Large AAAs (>55 mm diameter) carry a high risk of rupture, a surgical emergency that often leads to death due to severe internal bleeding. It has been suggested that regular exercise training might limit the rate at which AAAs develop. However, little is known about the safety and effectiveness of exercise training in these patients. This pilot study will examine the feasibility of supervised aerobic exercise training for patients with small AAAs (30 to 49 mm diameter). The investigators hypothesize that exercise training will be safe and useful for patients with small AAAs.
| Condition | Intervention | Phase |
|---|---|---|
|
Aortic Aneurysm, Abdominal Aneurysm Aortic Disease Vascular Disease Cardiovascular Disease |
Behavioral: Supervised exercise training Behavioral: Usual care control |
Phase 2 |
| Study Type: | Interventional |
| Study Design: | Allocation: Randomized Intervention Model: Parallel Assignment Masking: Open Label Primary Purpose: Treatment |
| Official Title: | Exercise Therapy for Abdominal Aortic Aneurysm Disease: a Feasibility Study |
- Feasibility [ Time Frame: 12 weeks ] [ Designated as safety issue: No ]We will monitor how feasible it is to recruit, test and train patients with small AAAs
- Cardiopulmonary fitness [ Time Frame: 12 weeks ] [ Designated as safety issue: No ]Peak oxygen uptake and ventilatory threshold assessed during an incremental-load cycling test
- Quality of life [ Time Frame: 12 weeks ] [ Designated as safety issue: No ]Health-related quality of life assessed using the MOS SF-36 v2 questionaire
- Aneurysm size [ Time Frame: 12 weeks ] [ Designated as safety issue: No ]Aneurysm size as measured using B-mode ultrasound
- Blood biomarker of disease progression [ Time Frame: 12 weeks ] [ Designated as safety issue: No ]Fasting blood samples will be taken to assess changes in hs-CRP
- Blood biomarker of disease progression [ Time Frame: 12 weeks ] [ Designated as safety issue: No ]Fasting blood samples will be taken to assess changes in MMP-9
| Estimated Enrollment: | 60 |
| Study Start Date: | January 2010 |
| Estimated Study Completion Date: | December 2011 |
| Estimated Primary Completion Date: | December 2011 (Final data collection date for primary outcome measure) |
| Arms | Assigned Interventions |
|---|---|
| Experimental: Exercise |
Behavioral: Supervised exercise training
Patients will be asked to attend three exercise sessions per week for 12 weeks. They will exercise in groups of up to four per session and they will be supervised by an experienced exercise physiologist. Each session will comprise 5 to 10 min warm-up period (involving very light aerobic exercise and a range of gentle movements), 30 min of light-to-moderate intensity aerobic exercise (cycle-ergometry and or treadmill-walking), and a 5 to 10 min cool-down period involving low-intensity aerobic exercise and gentle stretching. The intensity of the aerobic exercise will be individualised and will be progressed gradually (if appropriate) during the course of the study.
|
| No Intervention: Control |
Behavioral: Usual care control
Usual care, no active intervention
|
Detailed Description:
Abdominal aortic aneurysm (AAA) disease is a potentially lethal health problem of older adults. New screening initiatives will identify many individuals with small (30 to 49 mm) AAAs for which there are currently no treatment options. Regular aerobic exercise might retard AAA disease progression, but the feasibility and acceptability of aerobic exercise in patients with AAA disease has yet to be established. This pilot study will examine the feasibility of supervised aerobic exercise and exercise advice-only in patients with small AAAs. A total of 60 volunteers will be recruited and randomly allocated to one of the two groups. Patients in the supervised exercise programme will be offered three supervised cycle ergometry/treadmill-walking sessions for a period of 12 weeks. The feasibility of each intervention will be assessed in terms of recruitment and compliance, attrition, changes in cardiopulmonary fitness and objective measures of free-living physical activity. Changes in aneurysm size and blood markers associated with disease progression will also be monitored and the impact of the interventions on health-related quality of life assessed using a questionnaire. Outcomes will be assessed at baseline and 12 weeks. We will also conduct focus groups at the end of the trial to obtain qualitative feedback from patients. The results of this study will inform the design of a multi-centre randomised controlled trial with longer-term follow-up of clinical end-points.
Eligibility| Ages Eligible for Study: | 50 Years to 85 Years |
| Genders Eligible for Study: | Both |
| Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Men or women identified as having a stable 30 to 49 mm asymptomatic, infra-renal AAA, measured using high-resolution B-mode ultrasonography
- Ability to undertake exercise testing and training
Exclusion Criteria:
- Patients with large (>50 mm)/symptomatic AAAs
- Patients with contraindications to exercise testing/training (e.g. severe hypertension, unstable metabolic/cardiopulmonary conditions, musculoskeletal injuries etc…)
- Patients who are unable to travel to the testing and training facility at Sheffield Hallam University
- Patients who are already participating in regular exercise
- Patients with a mental impairment that would render consent unethical or would make compliance difficult (e.g. dementia or Alzheimer's)
Contacts and Locations| Contact: Garry A Tew, PhD | +44(0)1142252358 | g.tew@shu.ac.uk |
| United Kingdom | |
| Sheffield Hallam University | Recruiting |
| Sheffield, South Yorkshire, United Kingdom, S102BP | |
| Contact: Garry A Tew, PhD +44(0)1142252358 g.tew@shu.ac.uk | |
| Principal Investigator: Garry A Tew, PhD | |
| Sheffield Teaching Hospitals NHS Foundation Trust | Recruiting |
| Sheffield, South Yorkshire, United Kingdom, S57AU | |
| Contact: Shah Nawaz, MD +44(0)1142269224 shah.nawaz@sth.nhs.uk | |
| Principal Investigator: Shah Nawaz, MD | |
| Principal Investigator: | Shah Nawaz, MD | Sheffield Teaching Hospitals NHS Foundation Trust |
| Principal Investigator: | Garry A Tew, PhD | Sheffield Hallam University |
More Information
No publications provided
| Responsible Party: | Lance Burn, Research Coordinator, Sheffield Teaching Hospitals NHS Foundation Trust |
| ClinicalTrials.gov Identifier: | NCT01234610 History of Changes |
| Other Study ID Numbers: | STH15455 |
| Study First Received: | November 3, 2010 |
| Last Updated: | November 4, 2010 |
| Health Authority: | United Kingdom: National Health Service |
Keywords provided by Sheffield Teaching Hospitals NHS Foundation Trust:
|
Exercise Aortic aneurysm Feasibility Vascular disease |
Additional relevant MeSH terms:
|
Aneurysm Aortic Aneurysm Aortic Diseases |
Cardiovascular Diseases Vascular Diseases Aortic Aneurysm, Abdominal |
ClinicalTrials.gov processed this record on May 21, 2013