Plain English Summary
Background and study aims
Asthma is a long-term condition which affects the airways. When a person is suffering from asthma, the airways are extremely sensitive (hyperresponsive) to both natural chemicals the body produces and irritants outside the body, such as dust or pollen. Coming into contact with these substances can cause an asthma attack (also known as an exacerbation), which involves feelings of tightness in the chest as the airways become inflamed, causing coughing, wheezing, chest tightness and difficulty breathing. The most common treatment for asthma is using an inhaler which delivers a medication to help expand the airways to make breathing easier. The development of inhaler monitoring technology has allowed information to be automatically captured, allowing researchers to explore patterns of inhaler use and to relate this to other important factors related with asthma control, rather than relying on questionnaires and prescription counting to determine asthma treatment and adherence. The aim of this study is to look at whether using this technology is patient friendly and cost effective in three main areas of asthma care: sticking to treatment (adherence), treatment decisions, and the prediction and prevention of asthma attacks.
Who can participate?
Asthmatic adults who use an inhaler to control their symptoms.
What does the study involve?
Participants are randomly allocated to one of two groups. Those in the first group have their inhaler usage monitored but have no feedback on this. Those in the second group have their inhaler usage monitored with specific feedback about usage patterns. Participants in both groups visit the study centre at the start of the study and the end (six months), as well as receiving telephone calls every four weeks in between these visits to find out how bad their asthma has been. At the first study visit, participants complete questionnaires about well they feel their asthma is controlled and how it affects their quality of life as well as completing some breathing tests. They are then given a special plastic casing to put on their inhaler which contains technology to feeds patterns of how participants use their inhalers back to investigators via participants’ smartphones. At the end of the study, the initial assessments are repeated.
What are the possible benefits and risks of participating?
There are no direct benefits involved with participating in this study. There is a small risk that the breathing tests used (spirometry) can sometimes make people feel a bit short of breath or dizzy, but the study centre is very experienced at carrying this test out and there will be a clinician on hand to help. There is a small cost when data is transmitted from participants’ smartphones which the study team will reimburse.
Where is the study run from?
Nottingham Respiratory Research Unit (UK)
When is the study starting and how long is it expected to run for?
November 2015 to July 2019
Who is funding the study?
Who is the main contact?
Dr Ireti Adejumo
Improving asthma treatment using inhaler technology
The aim of this study is to investigate whether inhaler monitoring technology is patient friendly and cost effective in three main areas of asthma care: adherence, treatment decisions, and the prediction and prevention of asthma exacerbations.
London – Central Research Ethics Committee, 13/09/2016, ref: 16/LO/1693
Randomised; Interventional; Design type: Process of Care, Device, Active Monitoring
Primary study design
Secondary study design
Randomised controlled trial
Patient information sheet
Not available in web format, please use the contact details below to request a patient information sheet
Specialty: Respiratory disorders, Primary sub-specialty: Respiratory disorders; UKCRC code/ Disease: Respiratory/ Chronic lower respiratory diseases
Participants are randomised to one of two groups using a computer generated sequence.
Group A: Participants have their inhaler usage monitored but have no feedback on this.
Group B: Participants have their inhaler usage monitored with specific feedback about usage patterns.
All participants will be seen at visit 1 (week 0, baseline) and at visit 7 (week 24, end of study), giving a total of 2 visits to site per patient.
At Visit 1, participants will be assessed at the Nottingham Respiratory Research Unit. This involves having a brief clinical history taken, having their asthma control and quality of life assessed as well as undergoing spirometry. Baseline data on asthma phenotype will be collected from the patient’s medical record where available (e.g. prior eosinophilia, skin prick test results, exhaled nitric oxide, IgE).
All participants will complete follow-up questionnaires (ACT and AQLQ) every 4 weeks i.e. Visit 2-6 (Weeks - 4, 8, 12, 16 and 20) by telephone call. Questions on changes to treatment will be asked.
At Visit 7 (Week 24), the follow-up questionnaires will be completed for a final time at the site visit and questions on changes to treatment will be asked. Spirometry with reversibility will be repeated. There will be a review of adherence data and debrief. Selected participants will also undergo an adherence questionnaire and a semi-structured qualitative interview.
GP letters will be sent for all participants at entry and exit and for selected participants after Visits 2-6.
Primary outcome measures
1. Preventer use: The mean percentage of prescribed doses taken daily over the study period is assessed using electronic monitoring device data at Week 24
2. Reliever Use: The number of days with >16 actuations/day of Salbutamol taken in a 24-hour period is assessed using electronic monitoring device data at Week 24
Secondary outcome measures
Medication use (Categorised by preventer and reliever medication):
1. Number of days of preventer non-adherence (0 actuations per 24 hours), expressed as a rate: number of days/days of treatment, is measured by electronic monitoring device at Week 24
2. Number of days of 100% preventer adherence (when all prescribed doses taken) is measured by electronic monitoring device Week 24
3. Mean % of prescribed preventer dose taken daily is assessed by electronic monitoring device every month for 6 months
4. Number of days of overuse of preventer treatment (when more than daily prescribed doses taken i.e. >2 or >4/day) is measured by electronic monitoring device at Week 24
5. Mean daily ICS (preventer) dose is assessed by dividing the total number of actuations over study period multiplied by dose per actuation by the number of days of treatment exposure, at Week 24
6. Overuse of SABA (reliever): Number of days of >24 and >32 actuations of salbutamol in a 24 hour period, is measured by electronic monitoring device at Week 24
7. Number of days of zero SABA use (reliever) is measured by electronic monitoring device at Week 24
1. Number of exacerbations (treatment with systemic corticosteroids for asthma or antibiotics) is measured by electronic monitoring device at weeks 4, 8, 12, 16, 20 and 24 (final visit)
2. FEV1 is measured using spirometry at baseline (Week 0) and final visit (Week 24)
3. Subjective asthma control is measured using the Asthma Control Test (ACT) at baseline (week 0), weeks 4, 8, 12, 16, 20 and 24 (final visit)
Secondary outcomes: treatment decisions:
1. Patient views/attitudes to monitoring/ feedback are assessed using patient interviews at the final study visit
2. Understand patient factors around using devices are assessed using patient interviews at the final study visit
3. Ease of use/patient acceptability are assessed using patient interviews at the final study visit
4. Utility of differing thresholds for feedback (e.g. ICS adherence of <75% or <80%; salbutamol thresholds based on number of days of at least one salbutamol actuation or maximal daily number of actuations) are assessed from electronic monitoring device data at Week 24
5. Study practicality of data feedback processes is assessed by investigator feedback at study end
6. Episodes where advice provided to seek GP/clinical review based on monitoring data; and, episodes when participants actually sought review subsequently is assessed by participant interview at weeks 8, 12, 16, 20 and 24 (6 months)
Overall trial start date
Overall trial end date
Participant inclusion criteria
1. Age 18-65 inclusive
2. Use of systemic corticosteroids for worsening asthma (or an increase from baseline dose in patients on long-term oral corticosteroids) in the prior 12 months (i.e. at least one asthma exacerbation requiring additional systemic corticosteroid in the prior 12 months) patient reported
3. Doctor’s diagnosis of asthma for at least 12 months
4. On BTS step 2-5 treatment via MDI
5. Use of own internet-enabled and compatible mobile phone
6. Participant is willing and able to give informed consent for participation in the clinical investigation
7. Able (in the Investigators opinion) and willing to comply with all clinical investigation requirements
8. Willing to allow his or her General Practitioner and consultant, if appropriate, to be notified of participation in the clinical investigation
Target number of participants
Planned Sample Size: 30; UK Sample Size: 30
Participant exclusion criteria
1. Diagnosis of COPD or onset of symptoms after the age of 40 in patients with ≥10 PYH of smoking
2. Other clinically significant coexisting respiratory disease e.g. fibrosis, bronchiectasis
3. No personal mobile smartphone
4. Patients on maintenance and reliever therapy (Symbicort ‘SMART’ or Fostair 'MART’)
5. Any other significant disease or disorder which, in the opinion of the Investigator, may either put the participants at risk because of participation in the clinical investigation, or may influence the result of the clinical investigation, or the participant’s ability to participate in the clinical investigation
Recruitment start date
Recruitment end date
Countries of recruitment
Trial participating centre
Nottingham Respiratory Research Unit
Clinical Sciences Building University of Nottingham City Hospital Campus Hucknall Road
Nottingham University Hospitals NHS Trust
Research & Innovation
Nottingham Health Science Partners
Queens Medical Centre
+44 115 924 9924
GlaxoSmithKline plc., GSK
Funding Body Type
private sector organisation
Funding Body Subtype
Results and Publications
Publication and dissemination plan
Planned publication in a peer-reviewed journal.
IPD sharing statement:
The current data sharing plans for the current study are unknown and will be made available at a later date.
Intention to publish date
Participant level data
To be made available at a later date
Results - basic reporting
- ISRCTN90986892_PIS_24Nov16_V2.docx Uploaded 31/01/2017