About this trial
Multimorbidity is a significant issue for many patients with difficult asthma. With patients, we have co-designed a multimodal intervention comprising prescribed exercise, dietary support, breathing pattern retraining and behaviour change to target multimorbidity in difficult asthma
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
clinical diagnosis of difficult asthma as defined by BTS steps 4-5 and
enrolled in WATCH or meet WATCH inclusion criteria.
Demonstration of suboptimal symptom control through an ACQ ≥ 1.5 at enrolment
Normal lung function or mild/moderate airflow obstruction at baseline (FEV1>50% predicted)
Disqualifiers
Intercurrent exacerbation or exacerbation within 4 weeks prior to enrolment in study requiring treatment with oral corticosteroids and/or antibiotics. Note participants can be rescreened 4 weeks post exacerbation if they had not commenced the study
Initiation of biologic treatment within 6 months prior to recruitment or during study participation
Investigator determined significant change in regular asthma medication in the 12 weeks preceding or during trial period
Other medical or psychiatric conditions (including cognitive decline) limiting ability to exercise or that may in the opinion of the study clinician carry inherent risk for exercise
Trial design
Single group
Treatments tested in this trial
Behaviour change
Behavioralhealthy conversations to support behaviour change
Dietary support
BehavioralGuidance on healthy eating
Breathing pattern retraining
Behavioralguidance on breathing pattern in exercise
Exercise training
BehavioralExercise intervention prescribed to participant fitness level
Treatment groups
Trial outcomes
Primary outcomes
Improvement in Asthma Control Questionnaire score
Primary feasibility outcome is feasibility and acceptability to patients. Primary clinical endpoint outcome measure will be a minimal clinically significant improvement in ACQ 6 score (\>0.5). Score scale is from 0-6, with \< 1.5 demonstrating good asthma symptom control.
Secondary outcomes
Improvement in exercise capacity, QoL scores, exacerbation frequency
Increase in exercise capacity as assessed through oxygen uptake of \> 2ml/kg/min at anaerobic threshold (AT) on maximal, symptom limited, incremental shuttle walk test.
Asthma Quality of Life Questionnaire (AQLQ)
32 questions scored on Likert scale 1-7. Score is mean of 32 answers, range 1-7 (higher =better quality of life
Exacerbation frequency
number of asthma exacerbations requiring oral corticosteroid treatment
Locations
Sponsors and contacts
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University of Southampton
Lead sponsor
University Hospital Southampton NHS Foundation Trust
Collaborator
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