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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/study/NCT02491684
Registration number
NCT02491684
Ethics application status
Date submitted
16/06/2015
Date registered
8/07/2015
Date last updated
12/02/2019
Titles & IDs
Public title
A Study in Asthma Patients to Evaluate Efficacy, Safety and Tolerability of 14 Days Once Daily Inhaled Interferon Beta-1a After the Onset of Symptoms of an Upper Respiratory Tract Infection
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Scientific title
A Randomized, Double-blind, Placebo-controlled, Parallel Group, Multi-centre Phase IIa Study in Asthma Patients Comparing the Efficacy and Safety of Once Daily Inhaled Interferon Beta-1a to Placebo, Administered for 14 Days After the Onset of Symptoms of an Upper Respiratory Tract Infection for the Prevention of Severe Exacerbations
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Secondary ID [1]
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D6230C00001
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Universal Trial Number (UTN)
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Trial acronym
INEXAS
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Asthma
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Condition category
Condition code
Infection
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0
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Studies of infection and infectious agents
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Infection
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0
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Other infectious diseases
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Respiratory
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Other respiratory disorders / diseases
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Respiratory
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Asthma
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Treatment: Drugs - Interferon beta-1a Nebuliser solution 48 µg/mL
Treatment: Drugs - Placebo
Placebo comparator: Placebo (matching) - Placebo, once daily inhalation for 14 days
Experimental: Interferon beta-1a - Interferon beta-1a, 24 µg (metered dose) once daily inhalation for 14 days
Treatment: Drugs: Interferon beta-1a Nebuliser solution 48 µg/mL
Interferon beta-1a, 0,5 ml (24 µg, metered dose) once daily inhalation for 14 days
Treatment: Drugs: Placebo
Placebo solution for once daily inhalation for 14 days
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Intervention code [1]
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Treatment: Drugs
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Comparator / control treatment
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Control group
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Outcomes
Primary outcome [1]
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Proportion of Patients With a Severe Asthma Exacerbation During 14 Days of Treatment
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Assessment method [1]
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Evaluation of the efficacy of inhaled AZD9412 compared to placebo in preventing severe exacerbations during the 14 day treatment phase following the onset of an URTI in asthmatic patients.
A severe exacerbation was defined as worsening asthma symptoms and
1. use of systemic corticosteroids (or a temporary increase of at least 2-fold in a stable oral corticosteroid background dose) for at least 3 consecutive days and/or
2. an unscheduled visit or emergency room visit due to asthma symptoms that required at least 1 dose of systemic corticosteroids and/or
3. an in-patient hospitalisation due to asthma requiring at least 1 dose of systemic corticosteroids.
The number of patients with severe asthma exacerbations with onset during the treatment phase is presented for each treatment group.
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Timepoint [1]
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Day 1 - 14 of the treatment phase.
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Secondary outcome [1]
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Proportion of Patients With Severe Asthma Exacerbations Within 7 and 30 Days Following Randomisation
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Assessment method [1]
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Evaluation of the efficacy of inhaled AZD9412 compared to placebo in preventing severe exacerbations within 7 and 30 days after the start of treatment (Day 1).
A severe exacerbation was defined as worsening asthma symptoms and
1. use of systemic corticosteroids (or a temporary increase of at least 2-fold in a stable oral corticosteroid background dose) for at least 3 consecutive days and/or
2. an unscheduled visit or emergency room visit due to asthma symptoms that required at least 1 dose of systemic corticosteroids and/or
3. an in-patient hospitalisation due to asthma requiring at least 1 dose of systemic corticosteroids.
The numbers of patients with severe asthma exacerbations with onset during Days 1 - 7 and Days 1 - 30 are presented for each treatment group.
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Timepoint [1]
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Day 1 of treatment phase up to 30 days post-randomisation.
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Secondary outcome [2]
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Proportion of Patients With Moderate Asthma Exacerbation Within 7, 14 and 30 Days Following Randomisation
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Assessment method [2]
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Evaluation of the efficacy of inhaled AZD9412 compared to placebo in preventing moderate exacerbations within 7, 14 and 30 days after the start of treatment (Day 1).
A moderate exacerbation was defined as a temporary increase in maintenance therapy in order to prevent a severe event supported by a sustained (2 or more days) worsening in at least one key control metric, including asthma score, rescue use, night time awakening or morning peak expiratory flow.
The numbers of patients with moderate exacerbations with onset during Days 1 - 7, Days 1 - 14 and Days 1 - 30 are presented for each treatment group.
With respect to the Day 1-7 analysis, the model did not converge so the analysis could not be performed.
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Timepoint [2]
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Day 1 of treatment phase up to 30 days post-randomisation.
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Secondary outcome [3]
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Time to First Severe Asthma Exacerbation During 30 Days Following Randomisation
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Assessment method [3]
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The time to first event was calculated as start date of events - date of randomisation + 1.
Patients with no observed event were censored at the date of their last visit, or for lost-to-follow-up patients, at the last time point after which an event could not be assessed.
The median time to first exacerbation was not calculated in either treatment group due to low numbers of events.
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Timepoint [3]
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From Day 1 of treatment phase up to 30 days post-randomisation.
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Secondary outcome [4]
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Time to First Moderate Asthma Exacerbation During 30 Days Following Randomisation
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Assessment method [4]
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The time to first event was calculated as start date of events - date of randomisation + 1.
Patients with no observed event were censored at the date of their last visit, or for lost-to-follow-up patients, at the last time point after which an event could not be assessed.
The median time to first exacerbation was not calculated in either treatment group due to low numbers of events.
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Timepoint [4]
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From Day 1 of treatment phase up to 30 days post-randomisation.
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Secondary outcome [5]
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Duration of Moderate or Severe Exacerbations
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Assessment method [5]
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The duration of each individual moderate or severe exacerbation was calculated as:
Cessation date of exacerbation - Start date of exacerbation + 1.
The start date of a severe exacerbation was defined as the start date of systemic corticosteroids or increase of systemic corticosteroids or emergency room visit or hospital admission, whichever occurred first. The stop date was defined as the last day of systemic corticosteroids/increase of systemic corticosteroids or hospital discharge, whichever occurred last.
The start date of a moderate exacerbation was defined as the first day of increase in temporary maintenance therapy. The stop date was defined as the last day of this treatment.
The mean duration of moderate or severe exacerbations is presented for each treatment group.
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Timepoint [5]
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Day 1 of treatment phase up to 30 days post-randomisation.
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Secondary outcome [6]
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Change in Asthma Control From Baseline up to 30 Days as Measured by the Asthma Control Questionnaire (ACQ-6)
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Assessment method [6]
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The ACQ-6 consists of 6 questions to assess asthma control, each question measured on a 7-point scale scored from 0 (totally controlled) to 6 (severely uncontrolled). The ACQ-6 total score is computed as the un-weighted mean of the responses to the 6 questions. Baseline assessments were taken as the last non-missing assessment prior to randomisation.
The change from baseline at Visit 4 (Day 7 +/- 1), at Visit 6 (Day 14 +/- 1) and at Visit 8 (Day 30) is presented for the total score and for each of the 6 questions.
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Timepoint [6]
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From baseline up to 30 days after start of treatment phase.
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Secondary outcome [7]
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AUC for Change in Daytime and Night-time Asthma Symptom Score From Baseline up to 30 Days
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Assessment method [7]
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Asthma symptoms during night-time and daytime were recorded by the patient each morning and evening in the Asthma Daily Diary on a daily basis. Symptoms were recorded using a scale of 0 to 3 where 0 indicates no asthma symptoms up to an absolute score of 3. Baseline assessments were taken as the last non-missing assessment prior to randomisation. The total daily asthma symptom score was calculated by taking the sum of the night-time and daytime asthma scores recorded each day. The outcome variable is the area under the curve (AUC) for change from baseline in day-time, night-time and total daily asthma symptom scores over Days 1-14, Days 1-7, Days 8-14 and Days 15-30.
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Timepoint [7]
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From baseline up to 30 days after start of treatment phase.
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Secondary outcome [8]
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Change in the Proportion of Night-time Awakening Using the ePRO Questionnaire From Baseline up to 30 Days
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Assessment method [8]
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Night-time awakenings due to asthma symptoms were recorded by the patient in the Asthma Daily Diary each morning by answering the question whether he/she woke up during the night due to asthma symptoms with a 'yes' or 'no' response.
Biweekly means were calculated as the percentages of times the subject answered 'yes' over a period of 14 sequential days. Biweekly means are presented for the periods over Days 2-15 and Days 16-30.
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Timepoint [8]
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From baseline up to 30 days after start of treatment phase.
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Secondary outcome [9]
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Change in Health-related Quality of Life as Measured by the Asthma Quality of Life Questionnaire (AQLQ[S]) From Baseline up to 30 Days
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Assessment method [9]
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The AQLQ(S) was used to assess health-related quality of life and consisted of 32 questions. Patients were asked to score each of the questions on a 7-point scale ranging from 7 (no impairment) to 1 (severe impairment). The questions were allocated to 4 domains assessing:
1. activity limitation,
2. symptoms,
3. emotional function, and
4. environmental stimuli
The overall score was calculated as the mean of the responses to all questions. The mean change in overall score from baseline at Visit 6 (Day 14+/-1) and Visit 8 (Day 30) are presented.
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Timepoint [9]
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From baseline up to 30 days after start of treatment phase.
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Secondary outcome [10]
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AUC for Change in Daytime and Night-time Reliever Medication Use From Baseline up to 14 Days
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Assessment method [10]
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Patients recorded the number of reliever medication inhalations taken twice daily in the Asthma Daily Diary. The number of inhalations taken between the morning and evening lung function assessments were recorded in the evening. The number of inhalations taken between the evening and morning lung function assessments were recorded in the morning. Baseline assessments were taken as the last non-missing assessment prior to randomisation.
The AUC for change from baseline over Days 1-14 (inclusive of Days 1 and 14) is presented.
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Timepoint [10]
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From baseline up to Day 14 of treatment phase.
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Secondary outcome [11]
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AUC for Change in the Morning Peak Expiratory Flow (PEF) From Baseline to up to 30 Days
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Assessment method [11]
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Patients measured morning PEF at home and recorded the results using the ePRO device. Baseline assessments were taken as the last non-missing assessment prior to randomisation.
The mean AUC for change from baseline is presented for the periods Days 1-14, 1-7, 8-14 and 15-30.
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Timepoint [11]
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From baseline up to 30 days after start of treatment phase.
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Secondary outcome [12]
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AUC for Change in the Morning Forced Expiratory Volume in 1 Second (FEV1) From Baseline up to 30 Days
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Assessment method [12]
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Patients measured morning FEV1 at home and recorded the results using the ePRO device. Baseline assessments were taken as the last non-missing assessment prior to randomisation.
The mean AUC for change from baseline is presented for the periods Days 1-14, 1-7, 8-14 and 15-30.
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Timepoint [12]
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From baseline up to 30 days after start of treatment phase.
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Secondary outcome [13]
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AUC for Change in the Evening PEF From Baseline to up to 30 Days
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Assessment method [13]
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Patients measured evening PEF at home and recorded the results using the ePRO device. Baseline assessments were taken as the last non-missing assessment prior to randomisation.
The mean AUC for change from baseline is presented for the periods Days 1-14, 1-7, 8-14 and 15-30.
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Timepoint [13]
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From baseline up to 30 days after start of treatment phase.
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Secondary outcome [14]
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AUC for Change in the Evening FEV1 From Baseline up to 30 Days
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Assessment method [14]
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Patients measured evening FEV1 at home and recorded the results using the ePRO device. Baseline assessments were taken as the last non-missing assessment prior to randomisation.
The mean AUC for change from baseline is presented for the periods Days 1-14, 1-7, 8-14 and 15-30.
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Timepoint [14]
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From baseline up to 30 days after start of treatment phase.
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Eligibility
Key inclusion criteria
For inclusion in the study patients should fulfil the following criteria:
1. Provision of signed and dated written informed consent prior to any study specific procedures
2. Male or female aged 18 and above at the time of enrolment
3. History of physician-diagnosed asthma requiring treatment with medium-to-high dose ICS (>250 µg fluticasone dry powder formulation equivalents total daily dose, as defined in GINA 2014, see CSP Appendix G), and a second controller medication as recommended in the GINA guidelines (ie, LABA, leukotriene receptor antagonist or sustained release theophylline). The medium or high dose ICS plus LABA can be any combination inhaler or 2 separate inhalers. Patients must have taken ICS (>250 µg fluticasone or the equivalent daily) plus second controller medication for at least 12 months prior to the date the informed consent is obtained, with or without another controller such as oral corticosteroids (OCS), theophylline, tiotropium, or leukotriene receptor antagonists. The maintenance treatment must have been kept at the same or at a higher level these last 12 months.
4. Proof of post-bronchodilator reversibility in FEV1 of =12% and =200 mL (Pellegrino et al 2005) documented within 5 years prior to Visit 1, or proof of a positive response to a methacholine or histamine challenge (a decrease in FEV1 by 20% [PC20] at =8 mg/mL) performed according to ATS/ERS guidelines (American Thoracic Society 2000) or proof of positive response to mannitol challenge (a decrease in FEV1 by 15% [PD15] at =635 mg) (Anderson et al 2009) documented within 5 years prior to Visit 1. If historical documentation is not available, reversibility or proof of a positive response to a methacholine, histamine or mannitol challenge must be demonstrated and documented at Visit 1
5. Must answer "Yes" to the question "Does a cold or flu make your asthma worse?"
6. To have had at least two documented severe asthma exacerbations within the last 24 months that were suspected by the patient to have been caused by a common cold or flu and To have had at least one documented severe asthma exacerbation within the last 12 months that was suspected by the patient to have been caused by a common cold or flu
7. Female patients must be 1 year post-menopausal, surgically sterile, or using an acceptable method of contraception.
8. Negative pregnancy test (urine) for female patients of childbearing potential
9. Motivation (in the Investigator's opinion) to complete all study visits, the ability to communicate well with the Investigator and be capable of understanding the nature of the research and its treatment including its risks and benefits
10. Ability to read and write and use the electronic devices, including demonstrating an acceptable technique when using the ePRO device, home spirometer and the I-neb
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Minimum age
18
Years
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Maximum age
99
Years
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key exclusion criteria
Patients should not enter the study if any of the following exclusion criteria are fulfilled:
1. Involvement in the planning and/or conduct of the study (applies to both AstraZeneca staff and staff at third party vendors or staff at the study sites)
2. Previous randomization to treatment in the present study
3. Any condition, including findings in the medical history or in the pre-study assessments that, in the opinion of the Investigator, constitutes a risk or a contraindication for the participation of the patient in the study or that could interfere with the study objectives, conduct or evaluation
4. Lung disease other than asthma (eg, chronic obstructive pulmonary disease, cystic fibrosis, allergic bronchopulmonary aspergillosis, active tuberculosis). Patients with CT or chest X-ray findings indicating bronchiectasis which in the opinion of the Investigator are not clinically significant may be enrolled at the discretion of the Investigator
5. Patients with =4 severe exacerbations during the last 12 months that the patient suspected were triggered by something else than an upper respiratory tract infection
6. Current participation in another clinical trial or participation in a clinical trial where the patient has received a dose of a test product (IMP) within 12 weeks prior to entry into the study for small molecules and within 12 months prior to entry into the study for biologicals, or 5 times the half-life (whichever is the longest) of the biologic or small molecule IMP
7. Patients who currently have, or have had within the past 3 months, any significant underlying medical condition(s) that could impact interpretation of results eg, infections, haematological disease, malignancy, renal, hepatic, coronary heart disease or other cardiovascular disease, including arrhythmias, endocrinological or gastrointestinal disease
8. Abnormal vital signs, after at least 10 minutes supine rest, defined as any of the following:
* In patients < 60 years old, systolic blood pressure <90 mmHg or =150 mmHg
* In patients = 60 years old, systolic blood pressure <90 mmHg or =160 mmHg
* Diastolic blood pressure <50 mmHg or =100 mmHg
* HR <45 or >95 beats per minute
9. Any clinically important abnormalities in rhythm, conduction or morphology of the resting ECG and any abnormalities in the 12-lead ECG that, as considered by the Investigator, may interfere with the interpretation of QTc interval changes, including abnormal ST-T-wave morphology (particularly in the protocol defined primary lead) or left ventricular hypertrophy
10. Prolonged QTcF >450 ms (for both gender) or shortened QTcF <340 ms or family history of long QT syndrome
11. PR(PQ) interval shortening <120ms (PR<120 ms but >110 ms is acceptable if there is no evidence of ventricular pre-excitation).
12. PR(PQ) interval prolongation (>240ms), intermittent second or third degree AV block, or AV dissociation
13. QRS duration >120ms including persistent or intermittent bundle branch block
14. Patients with implantable cardiac defibrillator (ICD) or a permanent pacemaker and patients with symptomatic ventricular and / or atrial tachyarrhythmias
15. Patients with unstable angina pectoris or stable angina pectoris classified higher than Canadian Cardiovascular Society (CSS) class II or a myocardial infarction or stroke within 6 months
16. History of hospitalization within 12 months caused by heart failure or a diagnosis of heart failure higher than New York Heart Association (NYHA) class II
17. History of hypersensitivity to natural or recombinant Interferon beta-1a or to any of the drug preparation excipients
18. Received any marketed biologic agent (eg, omalizumab) within 12 months or 5 times the half-life (whichever is the longer) of the agent prior to enrolment
19. Significant history of depressive disorder or suicidal ideation. Specifically; individuals with current severe depression (ie, a low mood, which pervades all aspects of life and an inability to experience pleasure in activities that formerly were enjoyed); individuals with a past history of depression that required hospitalization or referral to psychiatric services in the past 5 years; individuals who currently feel suicidal or have attempted suicide in the past
20. History of epilepsy or seizures after the age of 5 years, other than febrile childhood seizure(s)
21. History of drug or alcohol abuse within 12 months prior to enrolment
22. Patients who have hepatic serum enzyme levels =2.5 times the normal range
23. Positive test for serum hepatitis B surface antigen, hepatitis C antibody, or HIV
24. Patients with a smoking history of =20 pack-years (1 pack year = 20 cigarettes smoked per day for one year)
25. Female who is breast-feeding, pregnant (verified by urine dipstick pregnancy test) or intends to become pregnant during the study
26. Patients who are unable to demonstrate an acceptable spirometry technique
27. Patients that have previously been included in studies evaluating the investigational medicinal product
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Study design
Purpose of the study
Prevention
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Allocation to intervention
Randomised controlled trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
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Masking / blinding
Blinded (masking used)
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Who is / are masked / blinded?
The people receiving the treatment/s
The people analysing the results/data
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Intervention assignment
Parallel
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Other design features
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Phase
Phase 2
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Type of endpoint/s
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Statistical methods / analysis
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Recruitment
Recruitment status
Completed
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Data analysis
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Reason for early stopping/withdrawal
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Other reasons
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Date of first participant enrolment
Anticipated
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Actual
21/07/2015
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Date of last participant enrolment
Anticipated
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Actual
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Date of last data collection
Anticipated
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Actual
24/11/2016
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Sample size
Target
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Accrual to date
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Final
121
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Recruitment in Australia
Recruitment state(s)
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Recruitment hospital [1]
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Research Site - Bedford Park
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Recruitment hospital [2]
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Research Site - New Lambton
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Recruitment hospital [3]
0
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Research Site - Westmead
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Recruitment hospital [4]
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Research Site - Woolloongabba
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Recruitment postcode(s) [1]
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0
5042 - Bedford Park
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Recruitment postcode(s) [2]
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0
2310 - New Lambton
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Recruitment postcode(s) [3]
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0
2145 - Westmead
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Recruitment postcode(s) [4]
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4102 - Woolloongabba
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Recruitment outside Australia
Country [1]
0
0
Argentina
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State/province [1]
0
0
Buenos Aires
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Country [2]
0
0
Argentina
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State/province [2]
0
0
Caba
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Country [3]
0
0
Argentina
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State/province [3]
0
0
Ciudad Autonomade Buenos Aires
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Country [4]
0
0
Argentina
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State/province [4]
0
0
Nueve de julio
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Country [5]
0
0
Argentina
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State/province [5]
0
0
Quilmes
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Country [6]
0
0
Colombia
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State/province [6]
0
0
Bogota
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Country [7]
0
0
Colombia
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State/province [7]
0
0
Bogotá
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Country [8]
0
0
Colombia
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State/province [8]
0
0
Floridablanca
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Country [9]
0
0
France
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State/province [9]
0
0
Dijon
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Country [10]
0
0
France
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State/province [10]
0
0
Lyon Cedex 04
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Country [11]
0
0
France
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State/province [11]
0
0
Marseille
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Country [12]
0
0
France
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State/province [12]
0
0
Montpellier Cedex 5
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Country [13]
0
0
France
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State/province [13]
0
0
Paris Cedex 18
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Country [14]
0
0
France
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State/province [14]
0
0
Pessac
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Country [15]
0
0
Korea, Republic of
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State/province [15]
0
0
Bucheon-si
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Country [16]
0
0
Korea, Republic of
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State/province [16]
0
0
Jeonju-si
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Country [17]
0
0
Korea, Republic of
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State/province [17]
0
0
Seoul
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Country [18]
0
0
Spain
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State/province [18]
0
0
Barcelona
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Country [19]
0
0
Spain
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State/province [19]
0
0
Marbella (Málaga)
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Country [20]
0
0
Spain
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State/province [20]
0
0
Málaga
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Country [21]
0
0
Spain
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State/province [21]
0
0
Sevilla
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Country [22]
0
0
Spain
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State/province [22]
0
0
Valencia
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Country [23]
0
0
United Kingdom
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State/province [23]
0
0
Blackpool
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Country [24]
0
0
United Kingdom
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State/province [24]
0
0
Bradford
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Country [25]
0
0
United Kingdom
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State/province [25]
0
0
Lancaster
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Country [26]
0
0
United Kingdom
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State/province [26]
0
0
Leeds
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Country [27]
0
0
United Kingdom
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State/province [27]
0
0
Manchester
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Country [28]
0
0
United Kingdom
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State/province [28]
0
0
Nottingham
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Country [29]
0
0
United Kingdom
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State/province [29]
0
0
Southampton
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Funding & Sponsors
Primary sponsor type
Commercial sector/industry
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Name
AstraZeneca
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Address
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Country
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Ethics approval
Ethics application status
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Summary
Brief summary
A study to investigate if inhaled Interferon beta-1a is safe and tolerated, and can prevent or reduce the severity of asthma attacks when administered to asthma patients at the onset of symptoms of common cold or influenza
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Trial website
https://clinicaltrials.gov/study/NCT02491684
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Trial related presentations / publications
McCrae C, Olsson M, Gustafson P, Malmgren A, Aurell M, Fageras M, Da Silva CA, Cavallin A, Paraskos J, Karlsson K, Wingren C, Monk P, Marsden R, Harrison T. INEXAS: A Phase 2 Randomized Trial of On-demand Inhaled Interferon Beta-1a in Severe Asthmatics. Clin Exp Allergy. 2021 Feb;51(2):273-283. doi: 10.1111/cea.13765. Epub 2020 Nov 3.
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Public notes
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Contacts
Principal investigator
Name
0
0
Per Gustafson, MD PhD
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Address
0
0
AstraZeneca, R&D mölndal
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Country
0
0
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Phone
0
0
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Fax
0
0
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Email
0
0
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Contact person for public queries
Name
0
0
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Address
0
0
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Country
0
0
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Phone
0
0
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Fax
0
0
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Email
0
0
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Contact person for scientific queries
No information has been provided regarding IPD availability
What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
No documents have been uploaded by study researchers.
Results are available at
https://clinicaltrials.gov/study/NCT02491684
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