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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT01360398
Other study ID # 114378
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date June 30, 2011
Est. completion date June 27, 2014

Study information

Verified date February 2019
Source GlaxoSmithKline
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The aim of this study is to generate epidemiological data to further explore determinants of Chronic Obstructive Pulmonary Disease (COPD) and the contribution of bacterial and viral pathogens to Acute Exacerbation of COPD (AECOPD) episodes.


Recruitment information / eligibility

Status Completed
Enrollment 127
Est. completion date June 27, 2014
Est. primary completion date June 27, 2014
Accepts healthy volunteers No
Gender All
Age group 40 Years to 85 Years
Eligibility Inclusion Criteria:

- Subjects who the investigator believes can and will comply with the requirements of the protocol.

- Written informed consent obtained from the subject.

- Male or female subjects between, and including, 40 and 85 years of age, at the time of consent.

- Subjects with confirmed diagnosis of COPD with Forced Expiratory Volume of air expired in 1 second (FEV1) of </=80% of predicted normal and FEV1/Forced expiratory Vital Capacity (FVC)<0.7

- Subjects have moderate, severe, or very severe COPD, according to Global Initiative for Chronic Obstructive Lung Disease (GOLD) staging.

- Subjects have a current or prior history of >/=10 pack-years of cigarette smoking. Former smokers are defined as those who have stopped smoking for at least 6 months. Number of pack years = (number of cigarettes per day/20) x number of years smoked.

- Subjects present a documented history of >/=1 exacerbation requiring antibiotics and/or oral corticosteroids or hospitalization in the previous 12 months.

Exclusion Criteria:

- Subject also has a confirmed diagnosis of asthma, cystic fibrosis, pneumonia risk factors or other respiratory disorders.

- Subjects having undergone lung surgery.

- Subject has a a-1 antitrypsin deficiency as underlying cause of COPD.

- Subject who experienced a moderate or severe COPD exacerbation not resolved at least 1 month prior to enrolment visit and at least 30 days following the last dose of oral corticosteroids.

- Subject using any antibacterial, antiviral or respiratory investigational drug or relevant vaccine up to 30 days prior to the enrolment visit.

- Subject has other conditions that the principal investigator judges may interfere with the study findings. Women who are pregnant or lactating or are planning on becoming pregnant during the study.

Study Design


Intervention

Procedure:
Blood sample
Blood samples will be collected from all patients at enrolment, at follow-up visits, at exacerbation visits, and during the final visit.
Sputum sample
Sputum will be collected from all patients at enrolment, at monthly follow-up visits, at exacerbation visits, and during the final visit. Sputum will be obtained by spontaneous expectoration or induced by stimulation according to standard methods.
Nasopharyngeal swab
Nasopharyngeal swabs will be collected from all patients at enrolment and from a subcohort of 30 patients at monthly follow-up visits and at exacerbation visits during the first year.
Urine sample
Urine samples will be taken at enrolment and exacerbation visits from all subjects and from the same subcohort of 30 patients providing nasopharyngeal swabs, at monthly follow-up visits during the first year.
End tidal breath sample
Breath samples will be collected from all patients at enrolment, at follow-up visits (monthly), at exacerbation visits, and during the final visit.
Other:
Data collection
Patient interview, diary cards review and questionnaires completion
Tests
Urine pregnancy test, chest CT-scan, lung function testing and 6-min walk test

Locations

Country Name City State
United Kingdom GSK Investigational Site Southampton Hampshire

Sponsors (1)

Lead Sponsor Collaborator
GlaxoSmithKline

Country where clinical trial is conducted

United Kingdom, 

References & Publications (2)

Bourne S, Cohet C, Kim V, Barton A, Tuck A, Aris E, Mesia-Vela S, Devaster JM, Ballou WR, Clarke SC, Wilkinson T. Acute Exacerbation and Respiratory InfectionS in COPD (AERIS): protocol for a prospective, observational cohort study. BMJ Open. 2014 Mar 7;4(3):e004546. doi: 10.1136/bmjopen-2013-004546. Erratum in: BMJ Open. 2015;5(1):e004546corr1. Clarke, Stuart [corrected to Clarke, Stuart C]. — View Citation

Mayhew D, Devos N, Lambert C, Brown JR, Clarke SC, Kim VL, Magid-Slav M, Miller BE, Ostridge KK, Patel R, Sathe G, Simola DF, Staples KJ, Sung R, Tal-Singer R, Tuck AC, Van Horn S, Weynants V, Williams NP, Devaster JM, Wilkinson TMA; AERIS Study Group. Longitudinal profiling of the lung microbiome in the AERIS study demonstrates repeatability of bacterial and eosinophilic COPD exacerbations. Thorax. 2018 May;73(5):422-430. doi: 10.1136/thoraxjnl-2017-210408. Epub 2018 Jan 31. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Mean Estimated Number of Acute Exacerbation of COPD (AECOPD) An Acute Exacerbation in a COPD patient is an event in the natural course of the disease characterized by a change in the patient's baseline dyspnea, cough, and/or sputum production and beyond normal day to day variations, that is acute in onset and may warrant a change in regular medication in a patient with underlying COPD The Means and Confidence Intervals (CI) were estimated using the Negative Binomial model taking into account time to follow up. Estimated exacerbations were presented as mean number of exacerbations per (/) subject/ year. During year 1
Primary Mean Estimated Number of AECOPD With Sputum Containing Bacterial Pathogens Bacterial pathogens assessed were: Haemophilus influenzae (Hi), Moraxella catarrhalis (Mcat), Steptococcus pneumoniae (Sp), Staphylococcus Aureus (Sta), Pseudomonas aeruginosa (Psa), any or other. For each bacteria, the means and CIs were estimated from Negative Binomial model taking into account the follow up time.Estimated exacerbations were presented as mean number of exacerbations/ subject/ year. During Year 1
Primary Overall AECOPD Exacerbation Rate for Any and Specific Bacterial Pathogens in Sputum Bacterial pathogens assessed, by culture, were: Haemophilus influenzae (Hi), Moraxella catarrhalis (Mcat), Streptococcus pneumoniae (Sp), Staphylococcus aureus (Sta), Pseudomonas aeruginosa (Psa), any bacteria or other bacteria. Overall exacerbation rate is the average number of exacerbations for each subject during their time in the study. During Year 1
Secondary Number of Sputum Samples Positive for Specific Pathogens - Any Bacteria and Hi Sputum samples were tested by bacterial species (any bacteria, Hi, Mcat, Sp, Sta, Psa and other bacteria), or overall and were obtained from culture at each visit (enrollment, any stable visit, any exacerbation visit, any mild exacerbation visit, any moderate exacerbation visit, any severe exacerbation visit). This endpoint presents results for any bacteria and Hi. During Year 1
Secondary Number of Sputum Samples Positive for Specific Pathogens - Mcat and Sp Sputum samples were tested by bacterial species (any bacteria, Hi, Mcat, Sp, Sta, Psa and other bacteria), or overall and were obtained from culture at each visit (enrollment, any stable visit, any exacerbation visit, any mild exacerbation visit, any moderate exacerbation visit, any severe exacerbation visit). This endpoint presents results for Mcat and Sp. During Year 1
Secondary Number of Sputum Samples Positive for Specific Pathogens - Sta, Psa and Other Bacteria Sputum samples were tested by bacterial species (any bacteria, Hi, Mcat, Sp, Sta, Psa and other bacteria), or overall and were obtained from culture at each visit (enrollment, any stable visit, any exacerbation visit, any mild exacerbation visit, any moderate exacerbation visit, any severe exacerbation visit). This endpoint presents results for Sta, Psa and other bacteria. During Year 1
Secondary Mean Number of Days Between 2 Consecutive AECOPDs The number of days between 2 consecutive exacerbations, as estimated by the investigator, was calculated only whenever the first exacerbation had an end date. During Year 1
Secondary Change From Baseline EXAcerbations of Chronic Pulmonary Disease Tool (EXACT) Scores at Enrollment and Any AECOPD Visit The exacerbations of chronic pulmonary disease tool version 1.0 (EXACT) is a validated self-administered instrument that evaluates the effects of pharmacologic treatment on acute exacerbations of COPD. Analyses of exacerbations in relation to morning or evening EXACT-PRO e-diaries were presented as follows: descriptive statistics on the EXACT daily scores tabulated at enrolment, at any stable and at any, mild, moderate or severe exacerbation visit. EXACT-PRO contains 14 questions with scores ranging from 0 to 4, where 0= best outcome while 4= worse outcome. During Year 1
Secondary Change From Baseline COPD Assessment Test (CAT) Scores at Enrollment and Any AECOPD Visit The COPD assessment test (CAT) is a validated self-administered instrument designed to provide a simple and reliable measure of health status in COPD patients. Its properties have been shown to be similar to the St George's respiratory questionnaire (SGRQ). The CAT comprises 8 items and has a scoring range of 0-40, 0= most positive answer and 40= most negative answer. In this study, the subjects were to complete the CAT questionnaire every 3 months. During Year 1
Secondary Change From Baseline COPD Nottingham Extended Activities of Daily Living Scale (NEADL) Scores at Enrollment and Any AECOPD Visit The NEADL assessed (quarterly in the present study) the ease or difficulty in performing extended activities of daily living. The NEADL scale contains 22 items, each measured on a 4-point Likert scale. There are four dimensions: mobility (6 items); kitchen (5 items); domestic (5 items); leisure (6 items). These are summed producing a total score reflecting general functioning. Each of the 22 individual items had 2 possible scores (0 or 1). Therefore, the range of the NEADL score was 0 to 22. Lower scores indicate greater levels of disability while higher scores indicate greater independence. During Year 1
Secondary Change From Baseline COPD EQ-5D Index and Visual Analogue Scale (VAS) Scores at Enrollment and Any AECOPD Visit The EQ-5D is an established measure of generic health outcome that provides a simple descriptive profile and a single index value that can be used in clinical and economic evaluation of healthcare and in population surveys. Its current format is 3-level and 5 dimensional (mobility, self-care, usual activities, pain/discomfort and anxiety/depression). The EQ-5D index was derived from the ratings recorded every 3 months for each of the five individual items (mobility, self-care, usual activities, pain/discomfort and anxiety/depression). The EQ-5D index was 0 (worst health state) to 100 (best health state). The negative numbers presented represent a decrease from baseline values and a worsening of health. During Year 1
Secondary Number of Subjects Receiving Various Health Care Types During AECOPD AECOPD health care type included: general practitioners (other than the study doctor), pneumologists, other specialists, hospital emergency department, home care nurses, pulmonary rehabilitation programs and/or nutrition advices. During Year 1
Secondary Number of Subjects With Serious Adverse Events (SAEs) Possibly Related/Linked to Withdrawal Serious adverse events (SAEs) include medical occur-rences that result in death, are life threatening, require hospitali-zation or prolongation of hospitalization or result in disabil-ity/incapacity. During Year 1
Secondary AECOPD Rate With Overall and Specific Bacterial Pathogens in Sputum , by Polymerase Chain Reaction (PCR) Assay Bacterial pathogens assessed, by PCR assay were: Hi, Mcat, Sp, Sta, Psa, Streptococcus pyogenes (Spyo) and any bacteria. During Year 1
Secondary AECOPD Rate With Overall and Specific Viral Pathogens in Sputum Viral pathogens assessed were: respiratory syncytial virus (RSV), parainfluenza virus (PIV), entero rhinovirus (ENV), human metapneumovirus (HMP), influenza virus (INV), adenovirus (ADV), coronavirus (CRV), human bocavirus (HBoV) and any virus. During Year 1
Secondary Mild-AECOPD Rate With Overall and Specific Viral Pathogens in Sputum Viral pathogens assessed were: respiratory syncytial virus (RSV), parainfluenza virus (PIV), entero rhinovirus (ENV), human metapneumovirus (HMP), influenza virus (INV), adenovirus (ADV), coronavirus (CRV), human bocavirus (HBoV) and any virus. Mild exacerbations were defined as worsening symptoms of COPD that were self-managed by the patient. During Year 1
Secondary Moderate-AECOPD Rate With Overall and Specific Viral Pathogens in Sputum Viral pathogens assessed were: respiratory syncytial virus (RSV), parainfluenza virus (PIV), entero rhinovirus (ENV), human metapneumovirus (HMP), influenza virus (INV), adenovirus (ADV), coronavirus (CRV), human bocavirus (HBoV) and any virus. Moderate exacerbations were defined as worsening symptoms of COPD that required treatment with oral corticosteroids and/or antibiotics. During Year 1
Secondary Severe-AECOPD Rate With Overall and Specific Viral Pathogens in Sputum Viral pathogens assessed were: respiratory syncytial virus (RSV), parainfluenza virus (PIV), entero rhinovirus (ENV), human metapneumovirus (HMP), influenza virus (INV), adenovirus (ADV), coronavirus (CRV), human bocavirus (HBoV) and any virus. Severe exacerbations were defined as worsening symptoms of COPD that required treatment with in-patient hospitalisation or home care intervention. During Year 1
Secondary AECOPD Rate With Overall and Specific Bacterial Pathogens in Sputum by Severity An Acute Exacerbation in a COPD patient is an event in the natural course of the disease characterized by a change in the patient's baseline dyspnea, cough, and/or sputum production and beyond normal day to day variations, that is acute in onset and may warrant a change in regular medication in a patient with underlying COPD. AECOPD severity was assessed as: any, mild, moderate and severe. Any = any COPD symptom regardless of severity. Mild = Worsening symptoms of COPD that are self-managed by the patient. Moderate = Worsening symptoms of COPD that require treatment with oral corticosteroids and/or antibiotics. Severe = Worsening symptoms of COPD that require treatment with in-patient hospitalisation or home care intervention. During Year 1
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