Survival, quality of life and health resource use following hospitalisation for chronic obstructive pulmonary disease (COPD) exacerbations

ISRCTN	ISRCTN13946813
DOI	https://doi.org/10.1186/ISRCTN13946813
Protocol serial number	N/A
Sponsor	Northumbria Healthcare NHS Foundation Trust (UK)
Funder	Northumbria Healthcare NHS Foundation Trust (UK)

Submission date: 10/08/2008
Registration date: 12/09/2008
Last edited: 22/05/2013

Recruitment status: No longer recruiting
Overall study status: Completed
Condition category: Respiratory

Prospectively registered

Protocol

Statistical analysis plan

Results

Individual participant data

Plain English summary of protocol

Not provided at time of registration

Contact information

Dr Stephen Bourke
Scientific

North Tyneside General Hospital
Rake Lane
North Shields
Newcastle-upon-Tyne
NE29 8NH
United Kingdom

Study information

Primary study design	Observational
Study design	Longitudinal, single-centre, observational study
Secondary study design	Single-centre
Study type	Participant information sheet
Scientific title	Survival, quality of life and health resource use following hospitalisation for chronic obstructive pulmonary disease (COPD) exacerbations: a longitudinal, single-centre, observational study
Study objectives	Acute exacerbations of chronic obstructive pulmonary disease (COPD) account for 10% of hospital admissions and 90-day mortality stands at 15.3%. Mortality increases with frequency of exacerbations, particularly when severe. In patients with severe exacerbations complicated by acute respiratory failure, non-invasive ventilation (NIV) improves survival but is still associated with a one-year mortality of approximately 50%. In these patients with a severe exacerbation, little is known regarding the use of NIV and quality of life and hence there is a lack of clarity regarding whether patients with the most severe exacerbations should be considered for NIV. We therefore intend to assess mortality, quality of life, exacerbation frequency and hospital admissions among survivors of exacerbations of COPD requiring NIV (n = 150) and exacerbations of COPD not requiring NIV (n = 150). Patients with severe COPD would benefit from input from the palliative care services in addition to optimal medical therapy. Despite evidence that patients with severe COPD have a low quality of life, high levels of disability and high levels of anxiety and depression, current input from palliative care services in this cohort is virtually non-existent. This is largely due to the difficulty in identifying which patients are unlikely to survive more than 6 months and hence should be referred to palliative care services. We therefore intend to identify univariate and independent predictors of in-hospital and six month survival in exacerbations of COPD requiring NIV (n = 150) and exacerbations of COPD not requiring NIV (n = 450). We also intend to validate a modified Medical Research Council (MRC) Dyspnoea Scale which has previously been shown (in unpublished data) to more accurately predict markers of poor outcome when compared to the original instrument. We will compare the relations of the novel modified MRC Dyspnoea Scale and the standard MRC Dyspnoea Scale with survival, quality of life, readmission rates, length of stay and frequency of hospital admissions. We therefore intend to recruit 600 patients admitted to Northumbria NHS Foundation Trust with an acute exacerbation of COPD and assess a variety of prognostic indices. A subset of 300 patients will undergo serial assessment of quality of life, health resource utilisation and provision of palliative care services. Provision of palliative care services will be assessed by interviewing the patient and their carers/family, contacting their GP and reviewing their medical notes. Please note that as of 20/02/2009 this record was updated to include amended trial dates. The initial trial dates at the time of registration were: Initial anticipated start date: 01/10/2008 Initial anticipated end date: 30/09/2010
Ethics approval(s)	Added 20/02/2009: County Durham and Tees Valley 1 Research Ethics Committee approved on 28th November 2008 (ref: 08/H0905/88)
Health condition(s) or problem(s) studied	Acute exacerbations of chronic obstructive pulmonary disease (COPD)
Intervention	All patients admitted who satisfy the above inclusion and exclusion criteria will be invited to participate in the study. We intend to recruit 150 patients requiring non-invasive ventilation (NIV) and 450 who do not require NIV. A number of prognostic indices will be assessed; age, gender, body mass index (BMI), frequency of exacerbations, frequency of admissions, previous spirometry, smoking history, exercise tolerance, ability to perform ADLs, performance status, previous pulmonary rehabilitation, previous ventilation, previous NIV, a number of physiological indices, chest x-ray (CXR) report, "do not resuscitate" (DNR) order, ability to cough, treatment on discharge, spirometry on discharge, discharge destination. Mortality data, including cause of death, will be determined in all patients by review of hospital notes and contacting the GP. All patients requiring NIV and the first 150 patients not requiring NIV will undergo serial assessment of quality of life, oxygen saturations, BMI, spirometry and MRC Dyspnoea Score. These assessments will be performed at discharge, 6 weeks, 3 months and 3 monthly intervals for 1 year. Total duration of follow-up: 1 year
Intervention type	Other
Primary outcome measure(s)	1. In-hospital and 6 month survival 2. Univariate and independent predictors of in-hospital and 6 month survival
Key secondary outcome measure(s)	1. Duration quality of life maintained above baseline 2. Mean improvement in quality of life, assessed in 150 patients not requiring NIV and 150 patients requiring NIV at discharge, 6 weeks, 3 months and then 3 monthly intervals for 1 year. This will be assessed by the following: St. Georges Respiratory Questionnaire, 36-item Short Form health survey (SF-36), Hospital Anxiety and Depression Score, Nottingham Extended Activities of Daily Living Scale 3. Discharge destination 4. Frequency of exacerbations 5. Frequency of hospital admissions and length of stay 6. Provision of palliative care services
Completion date	30/11/2010

Eligibility

Participant type(s)	Patient
Age group	Adult
Sex	All
Target sample size at registration	600
Key inclusion criteria	1. Both males and females, age over 40 years 2. Current or former smoker with a smoking history greater than 10 pack years 3. Diagnosis of chronic obstructive pulmonary disease, supported by spirometry 4. Infective exacerbation or pneumonia
Key exclusion criteria	1. Malignancy or other serious life-threatening co-morbidity 2. Severe cognitive impairment/dementia 3. Domiciliary ventilatory support prior to admission
Date of first enrolment	01/12/2008
Date of final enrolment	30/11/2010

Locations

Countries of recruitment

United Kingdom
England

Study participating centre

North Tyneside General Hospital

Newcastle-upon-Tyne
NE29 8NH
United Kingdom

Results and Publications

Individual participant data (IPD) Intention to share	No
IPD sharing plan summary	Not provided at time of registration
IPD sharing plan

Study outputs

Output type	Details	Date created	Date added	Peer reviewed?	Patient-facing?
Results article	dyspnoea and pneumonia results	01/02/2012		Yes	No
Results article	results	01/11/2012		Yes	No
Participant information sheet	Participant information sheet	11/11/2025	11/11/2025	No	Yes