Laminar Airflow in Severe Asthma for Exacerbation Reduction
LASER
A Multi-centre Randomised, Double Blind, Placebo-controlled, Parallel Group Trial of the Effectiveness of the Nocturnal Use of a Temperature Controlled Laminar Airflow (TLA) Device (Airsonett®) in Adults With Poorly-controlled, Severe Allergic Asthma
1 other identifier
interventional
240
1 country
1
Brief Summary
To ascertain whether home-based nocturnal TLA usage over a 12 month period can reduce exacerbations and improve asthma control and quality of life as compared to placebo, whilst being cost-effective and acceptable to adults with poorly-controlled, severe allergic asthma.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable asthma
Started May 2014
Typical duration for not_applicable asthma
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
May 1, 2014
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 1, 2017
CompletedStudy Completion
Last participant's last visit for all outcomes
January 1, 2017
CompletedFirst Submitted
Initial submission to the registry
January 6, 2017
CompletedFirst Posted
Study publicly available on registry
February 23, 2017
CompletedFebruary 23, 2017
February 1, 2017
2.7 years
January 6, 2017
February 20, 2017
Conditions
Outcome Measures
Primary Outcomes (1)
Exacerbation frequency
The frequency of severe asthma exacerbations occurring within the 12 month follow-up
12 months
Secondary Outcomes (5)
Asthma Control
12 months
Treatment effect on quality of Life
12 months
Evaluate the device
12 months
NHS Costs
12 months
NHS Costs
12 months
Study Arms (2)
Temperature-Controlled Laminar Airflow Device Active
ACTIVE COMPARATORTemperature-Controlled Laminar Airflow Device
Temperature-Controlled Laminar Airflow Device Placebo
PLACEBO COMPARATORTemperature-Controlled Laminar Airflow Device
Interventions
Eligibility Criteria
You may qualify if:
- \- A clinical diagnosis of asthma for ≥6 months with either: Airflow variability Airway reversibility Airway hyper-responsiveness
- Requirement for high-dose inhaled corticosteroids (ICS) (≥1000μg/day beclomethasone (BDP) or equivalent
- Poorly controlled asthma demonstrated by BOTH
- ≥2 severe asthma exacerbations, ACQ (7-point) score \>1 at Screening Visit 1 and Randomisation Visit 2
- Atopic status
- Exacerbation free
- Able to use the TLA device during sleep on at least five nights per week
- Able to understand and give written informed consent prior
You may not qualify if:
- Current smokers or ex-smokers abstinent for \<6months
- Ex-smokers with ≥15 pack year smoking history
- Partner who is a current smoker and smokes within the bedroom where the TLA device is installed
- TLA device cannot be safely installed within the bedroom
- Intending to move out of study area within the follow-up period
- Documented poor treatment adherence
- Occupational asthma with continued exposure to known sensitising agents in the workplace
- Previous bronchial thermoplasty within 12 months of randomisation
- Treatment with Omalizumab (anti-IgE) within 120 days of randomisation
- Using long-term oxygen, Continuous Positive Airway Pressure (CPAP) or Non-Invasive Ventilation (NIV)
- Presence of clinically significant lung disease other than asthma, including smoking-related chronic obstructive pulmonary disease (COPD), bronchiectasis associated with recurrent bacterial infection, allergic bronchopulmonary aspergillosis (mycosis), pulmonary fibrosis, sleep apnoea, pulmonary hypertension, or lung cancer,
- Patients currently taking part in other interventional respiratory clinical trials
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Portsmouth Hospitals NHS Trustlead
- University of Oxfordcollaborator
Study Sites (1)
Portsmouth Hospital NHS Trust
Portsmouth, UK, PO6 3LY, United Kingdom
Related Links
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY CHAIR
Anoop[ Chauhan
Portsmouth Hospitals NHS Trust
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER GOV
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
January 6, 2017
First Posted
February 23, 2017
Study Start
May 1, 2014
Primary Completion
January 1, 2017
Study Completion
January 1, 2017
Last Updated
February 23, 2017
Record last verified: 2017-02
Data Sharing
- IPD Sharing
- Will not share