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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT03281876
Other study ID # 207489
Secondary ID 2017-000880-34
Status Completed
Phase Phase 2
First received
Last updated
Start date November 27, 2017
Est. completion date March 26, 2020

Study information

Verified date January 2021
Source GlaxoSmithKline
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The purpose of this study is to test if the vaccine is working well in COPD patients aged 40 to 80 years old to reduce episodes of worsening symptoms ("exacerbations") and to gather further information on safety and immune response. In the current study, COPD patients with a history of acute exacerbations will receive 2 doses of the investigational vaccine or placebo intramuscularly according to a 0, 2 month vaccination schedule, in addition to standard care. The effect of vaccination against two pathogens known to cause exacerbations (Non-typeable Haemophilus influenza [NTHi] and Moraxella catarrhalis [Mcat]) will be evaluated at pre-defined timepoints (scheduled study visits). In addition to the scheduled study visits, additional study visit(s) and/ or phone contact(s) will take place for each acute exacerbation of COPD occurring from first vaccination up to study conclusion.


Description:

The purpose of this Phase IIB proof-of-concept (POC) study in moderate to very severe COPD patients (i.e. GOLD grade 2, 3 and 4) aged 40 to 80 years with a history of moderate or severe acute exacerbations of COPD (AECOPD) in the previous 12 months is to evaluate whether the NTHi-Mcat vaccine can reduce the frequency of AECOPD in this population and to assess the vaccine's safety, reactogenicity and immunogenicity. Several formulations of a vaccine containing the NTHi antigens (low or high formulation) either non-adjuvanted or combined with different adjuvants (aluminium [Al], adjuvant system) were already evaluated in two previous Phase I clinical trials (NTHI-002 in healthy adults aged 18 - 40 years and NTHI-003 in current and former healthy smokers of 50-70 years old). The investigational vaccines were well-tolerated, with an acceptable safety and reactogenicity profile. These studies allowed the dose selection of the NTHi antigens (low formulation) and the adjuvant system currently evaluated for the first time in moderate and severe COPD patients aged 45 - 81 years in the Phase II study NTHI-004. The safety, reactogenicity and immunogenicity of different formulations of the NTHi-Mcat investigational vaccine have been evaluated in the Phase I study in healthy adults aged 19 - 40 years and in current and former smokers aged 50 - 70 years (study NTHI MCAT-001). Based on results obtained up to 30 days post-Dose 2 from this study, the adjuvanted formulation containing NTHi proteins PD and PE-PilA and of UspA2 has been selected for evaluation in the current NTHI MCAT-002 study. Placebo will be used as a control. The NTHi-Mcat investigational vaccine and placebo will be given on top of standard of care to subjects in the respective study groups. In the current study, moderate, severe and very severe COPD patients (i.e. GOLD grade 2, 3 and 4) with a history of AECOPD will receive 2 doses of the NTHi-Mcat investigational vaccine or placebo intramuscularly (IM) according to a 0, 2 month vaccination schedule, in addition to standard care. Scheduled study visits, during which the effect of immunisation against NTHi and Mcat will be evaluated, will take place at pre-defined timepoints. In addition to the scheduled study visits, ad hoc AECOPD-driven study visit(s) and/ or phone contact(s) will take place for each AECOPD occurring from first vaccination up to study conclusion: - An AECOPD visit will be scheduled as soon as possible after the onset of the AECOPD symptoms (maximum 96 hours after the onset of the symptoms). - Follow-up visit(s) and/or phone call(s) will take place to determine the end of the AECOPD. Rationale for the protocol amendment: - CD8+ T cell component was removed from the secondary endpoint, but kept in the exploratory/tertiary endpoint. Previous clinical studies have shown that the investigational NTHi and NTHi-Mcat vaccines do not induce CD8+ T cell responses. This was observed in all studies performed with the NTHi vaccine and seen in the interim analysis of NTHi Mcat-001 study. - An exclusion criterion was updated to clarify that only subjects with clinically significant respiratory diseases other than COPD (e.g. clinically significant lung fibrosis, clinically significant pulmonary embolism) need to be excluded from study participation. - The polymerase chain reaction (PCR) assay for sputum samples was not designed to discriminate amongst Haemophilus influenzae (Hi) serotypes. Results from AERIS epidemiological study [Wilkinson, 2017] showed that more than 99% of these bacteria would be Non-Typeable Haemophilus influenzae (NTHi). Therefore, the protocol was updated to clarify that the presence of Hi bacteria in sputum during exacerbation will be used to determine AECOPD associated to NTHi. - The list of potential immune mediated diseases was updated (effective June 30th 2017). - The 87% confidence interval (CI) was removed from all secondary analyses. This confidence interval will only be maintained for the primary analysis because the 95% CIs are underpowered for this study. All other sensitivity analyses on different cohorts will be described using 95% CIs. As the primary objective will have both 87% and 95%, the sensitivity analyses can be interpreted with 95% CIs. - A Full-Analysis Set (FAS) that corresponds to an intent-to-treat analysis was added. The FAS will include all randomized subjects who will receive at least 1 vaccine administration and, as per intention-to-treat principle, a subject in the FAS will be analysed "as randomized" (i.e. according to the vaccine a subject was planned to receive irrespectively of his/her real exposure). - Cut-off values for anti-PE, anti-PilA and anti-UspA2 antibody ELISAs were updated following the re-set up of the assays. - Additional minor updates were based on the scientific and operational experience gained from current COPD studies.


Recruitment information / eligibility

Status Completed
Enrollment 606
Est. completion date March 26, 2020
Est. primary completion date March 26, 2020
Accepts healthy volunteers No
Gender All
Age group 40 Years to 80 Years
Eligibility Inclusion Criteria: - Subjects who, in the opinion of the investigator, can and will comply with the requirements of the protocol. - Written informed consent obtained from the subject prior to performing any study specific procedure. - A male or female between, and including, 40 and 80 years of age at the time of the first vaccination. - Confirmed diagnosis of COPD with forced expiratory volume in 1 second (FEV1) over forced vital capacity (FVC) ratio (FEV1/FVC) < 0.7, AND FEV1 < 80% predicted (GOLD 2, 3 and 4). - Current or former smoker with a cigarette smoking history of = 10 pack-years. - Stable COPD patient* with documented history** of at least 1 moderate or severe AECOPD within the 12 months before Screening. - Patient for whom the last episode of AECOPD is resolved for at least 30 days at the time of first vaccination. - A documented history of a COPD exacerbation is a medical record of worsening COPD symptoms that required systemic/oral corticosteroids and/or antibiotics (for a moderate exacerbation) or hospitalization (for a severe exacerbation). Prior use of antibiotics alone does not qualify as an exacerbation history unless the use was associated with treatment of worsening symptoms of COPD, such as increased dyspnea, sputum volume, or sputum purulence. Subject verbal reports are not acceptable. - Capable of complying with the daily electronic Diary Card completion throughout the study period, according to investigator's judgement at Visit 1. - Female subjects of non-childbearing potential may be enrolled in the study. Non-childbearing potential is defined as pre-menarche, current bilateral tubal ligation or occlusion, hysterectomy, bilateral ovariectomy or post-menopause. - Female subjects of childbearing potential may be enrolled in the study, if the subject: has practiced adequate contraception for 30 days prior to vaccination, and has a negative pregnancy test on the day of vaccination, and has agreed to continue adequate contraception during the entire treatment period and for 2 months after completion of the vaccination series. Exclusion Criteria: - Use of any investigational or non-registered product other than the study vaccine during the period starting 30 days before the first dose of study vaccine (Day -29 to Day 1), or planned use during the study period. - Any medical condition that in the judgment of the investigator would make intramuscular injection unsafe. - Administration of immunoglobulins or any blood products within the 3 months preceding the first dose of study vaccine or planned administration during the study period. - Any confirmed or suspected immunosuppressive or immunodeficient condition, based on medical history and physical examination. - Planned administration/ administration of a vaccine not foreseen by the study protocol in the period starting 30 days before the first dose and ending 30 days after the last dose of vaccine, with the exception of any influenza or pneumococcal vaccine which may be administered =15 days preceding or following any study vaccine dose. - Concurrently participating in another clinical study, at any time during the study period, in which the subject has been or will be exposed to an investigational or a non-investigational vaccine/product. - Chronic administration of immunosuppressants or other immune-modifying drugs during the period starting six months prior to the first vaccine dose (e.g. methotrexate). - Administration of systemic corticosteroids within the 30 days before first vaccination. Subjects who received systemic corticosteroids within this period may be enrolled at a later date if enrolment is still open. Inhaled and topical steroids are allowed. • Administration of systemic antibiotics within the 30 days before first vaccination. Subjects who received systemic antibiotics within this period may be enrolled at a later date if enrolment is still open. - Chronic use of antibiotics for prevention of AECOPD (e.g. azithromycin). - Acute disease and/or fever at the time of first vaccination. Fever is defined as temperature =37.5°C. The preferred location for measuring temperature in this study will be the oral cavity or the axilla. Subjects with a minor illness (such as mild diarrhoea, mild upper respiratory infection) without fever may be enrolled at the discretion of the investigator. - Oxygen therapy: Use of long-term oxygen therapy (LTOT) described as resting oxygen therapy >3L/min (Oxygen use =3L/min flow is not exclusionary). - Planned lung transplantation. - Lung resection: Subjects with planned lung volume reduction surgery during the study or within the 12 months prior to first vaccination. - Diagnosis of a-1 antitrypsin deficiency as the underlying cause of COPD. - Diagnosed with a respiratory disorder other than COPD at time of enrolment (such as sarcoidosis, active tuberculosis, clinically significant bronchiectasis, clinically significant lung fibrosis, clinically significant pulmonary embolism, clinically significant pneumothorax, current diagnosis of asthma in the opinion of the investigator), or chest X-ray/ CT scan revealing evidence of clinically significant abnormalities not believed to be due to the presence of COPD. Subjects with allergic rhinitis do not need to be excluded and may be enrolled at the discretion of the investigator. - History of immune-mediated disease other than COPD. If the subject has any condition on the non-exhaustive list of potential immune-mediated diseases defined in the protocol, they must be excluded unless the aetiology is clearly documented to be non-immune mediated. - Previous vaccination with any vaccine containing NTHi and/ or Mcat antigens. - History of any reaction or hypersensitivity likely to be exacerbated by any component of the vaccines and/ or the bronchodilator used for spirometry assessment during the study. - Contraindication for spirometry testing. - Unstable or life threatening cardiac disease: subjects with any of the following at Screening (Visit 1) would be excluded: Myocardial infarction or unstable angina in the last 6 months. Unstable or life threatening cardiac arrhythmia requiring intervention in the last 3 months NYHA Class IV Heart failure - Malignancies within the previous 5 years or lymphoproliferative disorder. - Any known disease or condition likely to cause death during the study period. - Pregnant or lactating female. - Current alcoholism and/or drug abuse. - Other condition which the investigator judges may put the safety of the subject at risk through study participation or which may interfere with the study findings. - Planned move to a location that will complicate participation in the trial through study end.

Study Design


Intervention

Biological:
NTHi Mcat investigational vaccine (GSK3277511A)
Two doses administered intramuscularly at Day 1 and Day 61 in the deltoid region of the non-dominant arm.
Placebo
Two doses administered intramuscularly at Day 1 and Day 61 in the deltoid region of the non-dominant arm.

Locations

Country Name City State
Belgium GSK Investigational Site Brussels
Belgium GSK Investigational Site Genk
Belgium GSK Investigational Site Gent
Belgium GSK Investigational Site Kortrijk
Belgium GSK Investigational Site Leuven
Belgium GSK Investigational Site Liège
Canada GSK Investigational Site Edmonton Alberta
Canada GSK Investigational Site Halifax Nova Scotia
Canada GSK Investigational Site Montreal Quebec
Canada GSK Investigational Site Quebec
Canada GSK Investigational Site St-Charles-Borromée Quebec
Canada GSK Investigational Site Truro Nova Scotia
Canada GSK Investigational Site Vancouver British Columbia
France GSK Investigational Site Brest Cedex
France GSK Investigational Site Créteil cedex
France GSK Investigational Site Marseille cedex 08
France GSK Investigational Site Montpellier cedex 5
Germany GSK Investigational Site Frankfurt Hessen
Germany GSK Investigational Site Frankfurt Hessen
Germany GSK Investigational Site Grosshansdorf Schleswig-Holstein
Germany GSK Investigational Site Immenhausen Hessen
Germany GSK Investigational Site Luebeck Schleswig-Holstein
Germany GSK Investigational Site Magdeburg
Italy GSK Investigational Site Cona (FE) Emilia-Romagna
Italy GSK Investigational Site Milano Lombardia
Italy GSK Investigational Site Milano Lombardia
Italy GSK Investigational Site Monza Lombardia
Italy GSK Investigational Site Negrar Veneto
Italy GSK Investigational Site Parma Emilia-Romagna
Spain GSK Investigational Site Barcelona
Spain GSK Investigational Site Centelles (Barcelona)
Spain GSK Investigational Site Elda
Spain GSK Investigational Site La Roca Del Valles (Barcelona)
Spain GSK Investigational Site Madrid
Spain GSK Investigational Site Pozuelo De Alarcón/Madrid
Spain GSK Investigational Site Vic
United Kingdom GSK Investigational Site Bradford
United Kingdom GSK Investigational Site Dundee
United Kingdom GSK Investigational Site Edinburgh
United Kingdom GSK Investigational Site High Heaton, Newcastle Upon Tyne
United Kingdom GSK Investigational Site Portsmouth Hampshire
United Kingdom GSK Investigational Site Southampton
United States GSK Investigational Site Abingdon Virginia
United States GSK Investigational Site Charlotte North Carolina
United States GSK Investigational Site Clearwater Florida
United States GSK Investigational Site Columbus Ohio
United States GSK Investigational Site Corvallis Oregon
United States GSK Investigational Site Council Bluffs Iowa
United States GSK Investigational Site Erie Pennsylvania
United States GSK Investigational Site Gaffney South Carolina
United States GSK Investigational Site Jacksonville Florida
United States GSK Investigational Site Jacksonville Florida
United States GSK Investigational Site Medford Oregon
United States GSK Investigational Site Mesa Arizona
United States GSK Investigational Site Missoula Montana
United States GSK Investigational Site Mooresville North Carolina
United States GSK Investigational Site Mount Pleasant South Carolina
United States GSK Investigational Site Neptune New Jersey
United States GSK Investigational Site Palm Springs California
United States GSK Investigational Site Phoenix Arizona
United States GSK Investigational Site Phoenix Arizona
United States GSK Investigational Site Richmond Virginia
United States GSK Investigational Site Spartanburg South Carolina
United States GSK Investigational Site Union South Carolina
United States GSK Investigational Site Wenatchee Washington
United States GSK Investigational Site Wichita Kansas
United States GSK Investigational Site Winston-Salem North Carolina

Sponsors (1)

Lead Sponsor Collaborator
GlaxoSmithKline

Countries where clinical trial is conducted

United States,  Belgium,  Canada,  France,  Germany,  Italy,  Spain,  United Kingdom, 

Outcome

Type Measure Description Time frame Safety issue
Primary Rate of Moderate and Severe AECOPD (Any Cause)-Analysis (87% Confidence Interval [CI]), Post-dose 2 and Lasting for 1 Year Efficacy of the investigational vaccine was measured by the rate of moderate and severe AECOPD from 1-month post dose 2 up to study end (i.e. rate expressed per year and calculated as the total number of events over the follow-up exposure time). The CIs of the rate is computed using a model which accounts for repeated events. Anthonisen criteria used to detect potential AECOPD: Worsening of 2 or more of the following major symptoms for at least 2 consecutive days: dyspnoea, sputum volume, sputum purulence, OR Worsening of any major symptom together with any of the following minor symptoms for at least 2 consecutive days: sore throat, cold, fever without other cause, increased cough, increased wheeze. Moderate AECOPD requires treatment with systemic corticosteroids and/ or antibiotics. Severe AECOPD requires hospitalization. Confirmation of any AECOPD was as per investigator's judgement. From 1-month post-Dose 2 (at Day 91) up to study end (at Day 451)
Primary Rate of Moderate and Severe AECOPD (Any Cause) -Analysis (95% CI), Post-dose 2 and Lasting for 1 Year Efficacy of the investigational vaccine was measured by the rate of moderate and severe AECOPD from 1-month post dose 2 up to study end (i.e. rate expressed per year and calculated as the total number of events over the follow-up exposure time). The CIs of the rate is computed using a model which accounts for repeated events. Anthonisen criteria used to detect potential AECOPD: Worsening of 2 or more of the following major symptoms for at least 2 consecutive days: dyspnoea, sputum volume, sputum purulence, OR Worsening of any major symptom together with any of the following minor symptoms for at least 2 consecutive days: sore throat, cold, fever without other cause, increased cough, increased wheeze. Moderate AECOPD requires treatment with systemic corticosteroids and/ or antibiotics. Severe AECOPD requires hospitalization. Confirmation of any AECOPD was as per investigator's judgement. From 1-month post-Dose 2 (at Day 91) up to study end (at Day 451)
Secondary Number of Subjects Reported With Each Solicited Local Adverse Event (AE) Assessed solicited local symptoms were pain, redness and swelling During the 7-day follow-up period (the day of vaccination + 6 days) after each vaccination administered approximately at Day 1 and Day 61
Secondary Number of Subjects Reported With Each Solicited General AE Assessed solicited general symptoms were Chills, fatigue, fever [defined as (oral cavity or axillary) temperature equal to or above (=) 37.5 degrees Celsius (°C)], gastrointestinal symptoms [nausea, vomiting, diarrhoea and/or abdominal pain], headache and myalgia. During the 7-day follow-up period (the day of vaccination + 6 days) after each vaccination administered approximately at Day 1 and Day 61
Secondary Number of Subjects Reported With Any Unsolicited Adverse Event (AE) An unsolicited AE covers any untoward medical occurrence in a clinical investigation subject temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product and reported in addition to those solicited during the clinical study and any solicited symptom with onset outside the specified period of follow-up for any solicited symptoms. During the 30-day follow-up period (the day of vaccination + 29 days) after each vaccination administered approximately at Day 1 and Day 61
Secondary Number of Subjects Reported With Any Potential Immune-mediated Diseases (pIMDs) pIMDs are a subset of AEs that include autoimmune diseases and other inflammatory and/or neurologic disorders of interest which may or may not have an autoimmune aetiology. From first vaccination (Day 1) up to Study end (at Day 451)
Secondary Number of Subjects Reported With Any Serious Adverse Event (SAE) SAEs assessed include medical occurrences that result in death, are life threatening, require hospitalization or prolongation of hospitalization or result in disability/incapacity From first vaccination (Day 1) up to Study end (at Day 451)
Secondary Rate of Moderate and Severe AECOPD in Vaccinated and Control Subjects, One Year Follow up Starting 1 Month Post Dose 2, by 3 Months Period The rates of AECOPD were expressed per year and calculated as the total number of events over the follow-up exposure time. The CIs of the rate was computed using a model which accounts for repeated events. The severity of AECOPD can be graded according to the intensity of medical intervention required. Moderate AECOPD= requires treatment with systemic corticosteroids and/or antibiotics. Severe AECOPD= requires hospitalization. The intention of the analysis of the Rate during 3, 6 and 9 months observation starting 1 month post-Dose 2 was to report the rate by 3 months period, so for the periods: 0-3, 3-6, 6-9, 9-12 months. During following periods: from 0 to 3 months, from 3 to 6 months, from 6 to 9 months, from 9 to 12 months (observation starting 1 month post-Dose 2)
Secondary Rate of Any AECOPD Case in Vaccinated and Control Subjects, One Year Follow up Starting 1 Month Post Dose 2, by 3 Months Period The rates of any AECOPD were expressed per year and calculated as the total number of events over the follow-up exposure time. The CIs of the rate was computed using a model which accounts for repeated events. The intention of the analysis of the Rate during 3, 6, 9 and 12 months observation starting 1 month post-Dose 2 was to report the rate by 3 months period, so for the periods: 0-3, 3-6, 6-9, 9-12 and 0-12 months. During following periods: from 0 to 3 months, from 3 to 6 months, from 6 to 9 months, from 9 to 12 months, 0-12 months (observation starting 1 month post-Dose 2)
Secondary Exacerbation Rate of Any AECOPD Cases, Classified by Severity, One Year Follow up Starting 1 Month Post Dose 2, by 3 Months Period The exacerbation rate of any AECOPD by severity is the average number of exacerbations for each subject: It is calculated proportionally to the follow-up time per subject and then scaled to the period considered. Mean and standard deviation of the exacerbation rate are given for each period considered. The severity of AECOPD can be graded according to the intensity of medical intervention required. Mild = can be controlled with an increase in dosage of regular medications. Moderate AECOPD= requires treatment with systemic corticosteroids and/or antibiotics. Severe AECOPD= requires hospitalization. The intention of the analysis of the Rate during 3, 6 and 9 months observation starting 1 month post-Dose 2 was to report the rate by 3 months period, so for the periods: 0-3, 3-6, 6-9, 9-12 months. During following periods: from 0 to 3 months, from 3 to 6 months, from 6 to 9 months, from 9 to 12 months (observation starting 1 month post-Dose 2)
Secondary Number of Subjects With First Moderate or Severe AECOPD Number of subjects with first occurrence of moderate or severe episode of AECOPD was reported, in order to compute time to first occurrence and derive the hazard rate using Cox's proportional hazard regression model. From 1-month post-Dose 2 (at Day 91) up to study end (at Day 451)
Secondary Number of Subjects With First AECOPD of Any Severity Number of subjects with first occurrence of any episode of AECOPD of any severity was reported, in order to compute time to first occurrence and derive the hazard rate using Cox's proportional hazard regression model. From 1-month post-Dose 2 (at Day 91) up to study end (at Day 451)
Secondary Number of Subjects With First AECOPD Classified by Severity Number of subjects with first occurrence of any episode of AECOPD classified by severity was reported, in order to compute time to first occurrence and derive the hazard rate using Cox's proportional hazard regression model. From 1-month post-Dose 2 (at Day 91) up to study end (at Day 451)
Secondary Number of Days With Moderate and Severe AECOPDs The length of each AECOPD was tabulated and presented via descriptive statistics (mean, Standard Deviation) and expressed in Days. From 1-month post-Dose 2 (at Day 91) up to study end (at Day 451)
Secondary Number of Days With AECOPDs of Any Severity The length of each AECOPDs was tabulated and presented via descriptive statistics (mean, Standard Deviation). From 1-month post-Dose 2 (at Day 91) up to study end (at Day 451)
Secondary Number of Days With AECOPDs Classified by Severity The length of each AECOPDs by severity was tabulated and presented via descriptive statistics (mean, Standard Deviation). From 1-month post-Dose 2 (at Day 91) up to study end (at Day 451)
Secondary Rate of Non-Typeable Haemophilus Influenzae (NTHi)-Associated and/ or Moraxella Catarrhalis (Mcat)-Associated Moderate and Severe AECOPD The rates of AECOPD were expressed per year and calculated as the total number of events over the follow-up exposure time. The CIs of the rate was computed using a model which accounts for repeated events. Respiratory pathogens NTHi and Mcat was determined by Polymerase chain reaction (PCR) analysis in sputum samples. From 1-month post-Dose 2 (at Day 91) up to study end (at Day 451)
Secondary Rate of NTHi-associated and/ or Mcat-associated AECOPD of Any Severity The rates of AECOPD of any severity were expressed per year and calculated as the total number of events over the follow-up exposure time. The CIs of the rate was computed using a model which accounts for repeated events. Respiratory pathogens NTHi and Mcat was determined by polymerase chain reaction (PCR) analysis in sputum samples. From 1-month post-Dose 2 (at Day 91) up to study end (at Day 451)
Secondary Exacerbation Rate of Any NTHi-associated and/ or Mcat-associated AECOPD Cases, Classified by Severity The exacerbation rate of any AECOPD by severity is the average number of exacerbations for each subject: it is calculated proportionally to the follow-up time per subject, and then scaled to the period considered. Mean and standard deviation of the exacerbation rate are given for the period considered. Respiratory pathogens NTHi and Mcat was determined PCR analysis in sputum samples From 1-month post-Dose 2 (at Day 91) up to study end (at Day 451)
Secondary Number of Subjects With First Moderate or Severe NTHi-associated and/or Mcat-associated AECOPD Number of subjects with first occurrence of moderate or severe NTHI-associated and/or Mcat-associated AECOPD was reported,in order to compute time to first occurrence and derive the hazard rate using Cox's proportional hazard regression model. Respiratory pathogens NTHi and Mcat was determined PCR analysis in sputum samples. From 1-month post-Dose 2 (at Day 91) up to study end (at Day 451)
Secondary Number of Subjects With First NTHi-associated and/or Mcat-associated AECOPD of Any Severity Number of subjects with first occurrence of NTHI-associated and/or Mcat-associated AECOPD of any severity was reported,in order to compute time to first occurrence and derive the hazard rate using Cox's proportional hazard regression model. Respiratory pathogens NTHi and Mcat was determined PCR analysis in sputum samples. From 1-month post-Dose 2 (at Day 91) up to study end (at Day 451)
Secondary Number of Subjects With First NTHi-associated and/or Mcat-associated AECOPD, Classified by Severity Number of subjects with first occurrence of NTHI-associated and/or Mcat-associated AECOPD classified by severity was reported, in order to compute time to first occurrence and derive the hazard rate using Cox's proportional hazard regression model. Respiratory pathogens NTHi and Mcat was determined PCR analysis in sputum samples. From 1-month post-Dose 2 (at Day 91) up to study end (at Day 451)
Secondary Number of Days With Moderate and Severe NTHi-associated and Mcat-associated AECOPD The length of each NTHi associated and/or Mcat associated AECOPDs was tabulated and presented via descriptive statistics (mean, Standard Deviation). From 1-month post-Dose 2 (at Day 91) up to study end (at Day 451)
Secondary Number of Days With NTHi-associated and/or Mcat-associated AECOPDs of Any Severity The length of each NTHi associated and/or Mcat associated AECOPDs was tabulated and presented via descriptive statistics (mean, Standard Deviation). From 1-month post-Dose 2 (at Day 91) up to study end (at Day 451)
Secondary Number of Days With NTHi-associated and/or Mcat-associated AECOPD, Classified by Severity The length of each NTHi associated and/or Mcat associated AECOPDs was tabulated and presented via descriptive statistics (mean, Standard Deviation). From 1-month post-Dose 2 (at Day 91) up to study end (at Day 451)
Secondary Anti-PD Antibody Concentrations as Measured by the Enzyme-Linked Immunosorbent Assay (ELISA) Anti-Protein D (PD) antibody concentrations as determined by ELISA, and expressed as geometric mean concentrations (GMCs) in ELISA unit per milliliter (EU/mL). For anti-PD antibodies, the cut-off of the assay is 153 ELISA Units per millilitre (EU/mL.) At Day 1, Day 31, Day 61, Day 91, Day 271 and at Day 451
Secondary Anti-PE Antibody Concentrations as Measured by ELISA Anti-Protein E (PE) antibody concentrations as determined by ELISA and expressed as GMCs in EU/mL For Anti-PE antibodies, the cut-off of the assay is 16 EU/mL. At Day 1, Day 31, Day 61, Day 91, Day 271 and at Day 451
Secondary Anti-PilA Antibody Concentrations as Measured by ELISA Anti-Type IV pilus assembly protein (PilA) antibody concentrations as determined by ELISA, and expressed as GMCs in EU/mL. For Anti-PilA antibodies, the cut-off of the assay is 8 EU/mL. At Day 1, Day 31, Day 61, Day 91, Day 271 and at Day 451
Secondary Anti-UspA2 Antibody Concentrations as Measured by ELISA Anti-ubiquitous surface protein A2 of Moraxella catarrhalis (UspA2) aantibody concentrations as determined by ELISA, and expressed as GMCs in EU/mL. For Anti-UspA2 antibodies, the cut-off of the assay is 28 EU/mL. At Day 1, Day 31, Day 61, Day 91, Day 271 and at Day 451
Secondary Frequency of PD Specific Cluster of Differentiation (CD)4+ T-cells Expressing at Least 2 Markers Among CD40L, IL2, TNF-Alpha, IFN-Gamma, IL-13 and IL-17 Using Background Reduced Frequency Data The ICS staining assay was used to assess cell-mediated immunogenicity (CMI) responses. After Peripheral blood mononuclear cell (PBMC) stimulation with the relevant antigen, the frequency of PD specific CD4+ T-cells expressing selected combination of cytokines such as interleukine-2, 13, 17 (IL-2, IL-13, IL-17), interferon-gamma (IFN-?), tumour necrosis factor-alpha (TNF-a) and cluster of differentiation 40 ligand (CD40L) are evaluated by flow cytometry and expressed as mean and standard deviation. At Day 1, Day 91, Day 271 and at Day 451
Secondary Frequency of PE Specific (CD)4+ T-cells Expressing at Least 2 Markers Among CD40L, IL2, TNF-Alpha, IFN-Gamma, IL-13 and IL-17 Using Background Reduced Frequency Data The ICS staining assay was used to assess CMI responses. After PBMC stimulation with the relevant antigen, the frequency of PE specific CD4+ T-cells expressing selected combination of cytokines such as (IL-2, IL-13, IL-17), IFN-?, TNF-a and CD40L are evaluated by flow cytometry and expressed as mean and standard deviation. At Day 1, Day 91, Day 271 and at Day 451
Secondary Frequency of PilA Specific CD4+ T-cells Expressing at Least 2 Markers Among CD40L, IL2, TNF-Alpha, IFN-Gamma, IL-13 and IL-17 Using Background Reduced Frequency Data The ICS staining assay was used to assess CMI responses. After PBMC stimulation with the relevant antigen, the frequency of PilA specific CD4+ T-cells expressing selected combination of cytokines such as IL-2, IL-13, IL-17, IFN-?, TNF-a and CD40L are evaluated by flow cytometry and expressed as mean and standard deviation. At Day 1, Day 91, Day 271 and at Day 451
Secondary Frequency of UspA2 Specific CD4 + T-cells Expressing at Least 2 Markers Among CD40L, IL2, TNF-Alpha, IFN-Gamma, IL-13 and IL-17 Using Background Reduced Frequency Data The ICS staining assay was used to assess CMI responses. After PBMC stimulation with the relevant antigen, the frequency of UspA2 specific CD4+ T-cells expressing selected combination of cytokines such as IL-2, IL-13, IL-17, IFN-?, TNF-a and CD40L are evaluated by flow cytometry and expressed as mean and standard deviation. At Day 1, Day 91, Day 271 and at Day 451
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