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Clinical Trial Details — Status: Active, not recruiting

Administrative data

NCT number NCT03127059
Other study ID # SJ-552
Secondary ID
Status Active, not recruiting
Phase N/A
First received
Last updated
Start date April 27, 2017
Est. completion date August 31, 2024

Study information

Verified date March 2024
Source Naestved Hospital
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Dyspnoe can disable patients with asthma. Dysfunctional breathing (DB), resulting in dyspnoe, can mimic or exaggerate asthma. Around every forth patient with asthma have DB. Breathing exercises (BrEX) can improve asthma-related quality of live (QOL) in less severe asthma. No study has investigated the effect of BrEX on QOL neither on level of physical activity in severe asthma. A randomised controlled multicentre trial will include 190 adults with poor asthma control (Asthma Control Questionnaire (ACQ6)-score≥0.8) from seven outpatient departments and one specialized private clinic. Patients will be allocated to either usual care (no intervention) or breathing exercises (BrEX)-treatment consisting of 12-week intervention including three physiotherapist-sessions focusing on breathing pattern modification (Papworth Method; Buteyko technique) in rest and activity and 10 minutes home-exercise twice daily. Primary outcome is change in Mini Asthma Quality of Life Questionnaire (MiniAQLQ) at six-months follow-up.


Description:

In Denmark around 300,000 suffer from asthma. Dyspnoe can disable patients with asthma. Dysfunctional breathing (DB), resulting in dyspnoe, can mimic or exaggerate asthma. Around 20-29% of asthmatic patients have DB. Breathing exercises (BrEX) can improve asthma-related quality of life (QOL) and control of asthma symptoms in less severe asthma. No study has investigated the effect of BrEX on QOL neither on level of physical activity in severe asthma. A randomised controlled multicentre trial will include 190 adults with poor asthma control (Asthma Control Questionnaire (ACQ6)-score≥0.8) from seven outpatient departments and one specialized private clinic. After optimizing of inhalation technique, patients will be allocated to either usual care (no intervention) or BrEX-treatment consisting of 12-week intervention including three physiotherapist-sessions focusing on breathing pattern modification (Papworth Method; Buteyko technique) in rest and activity and 10 minutes home-exercise twice daily. Primary outcome is change in Mini Asthma Quality of Life Questionnaire (MiniAQLQ) at six-months follow-up. Secondary outcomes are changes in ACQ6, Nijmegen Hyperventilation Questionnaire (NQ), Hospital Anxiety and Depression Scale (HAD), accelerometry (physical activity level, number of steps), 6 minutes walk distance, and forced expiratory volume in first second (FEV1), besides response of Global perceived effect rate (GPE) in asthma-related QOL and asthma control.


Recruitment information / eligibility

Status Active, not recruiting
Enrollment 190
Est. completion date August 31, 2024
Est. primary completion date April 14, 2020
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - Referred from GP to a secondary, out-patient respiratory clinic for lack of asthma control - Pulmonologist-diagnosed asthma - = 2 consultations at a pulmonologist-lead asthma clinic - ACQ6 =0.8 - Able to provide written informed consent. Exclusion Criteria: - Trained in breathing exercises by physiotherapist last 6 months - Aged <18 - Pregnancy - Not able to speak, read or understand Danish - Any severe disease as judged by the responsible physician - Participating in another pulmonary interventional research-project.

Study Design


Related Conditions & MeSH terms


Intervention

Other:
Breathing Exercises
Key points in the intervention are Reduction (or normalising) of the respiration rate; use of rhythmic, nasal inspiration, diaphragmatic breathing; reduction of depth of breath, longer expiration; breath-holding at functional residual capacity. Relaxation, especially the neck, jaw, tongue, and shoulders. Emphasizing the impact of gravity to the body. Inclusion of the breathing modification into walking and other physical activities. Daily home exercise of BrEX.
Usual care
Participants will receive only short information given initially at recruitment. No instruction or booklet will be distributed in the Usual care-Group.

Locations

Country Name City State
Denmark Dep. of Physiotherapy and Dep. of Pulmonology Aalborg Region North
Denmark Dep. of Physiotherapy and Dep. of Pulmonology Bispebjerg Danish Capital Region
Denmark Allergi og Lungeklinikken Helsingør Helsingør Danish Capital Region
Denmark Dep. of Physiotherapy and Dep. of Pulmonology Hvidovre Danish Capital Region
Denmark Dep. of Physiotherapy and Dep. of Pulmonology Naestved Region Zealand
Denmark Dep. of Physiotherapy and Dep. of Pulmonology Odense Region Of Southern Denmark
Denmark Dep. of Physiotherapy and Dep. of Pulmonology Roskilde Region Zealand
Denmark Dep. of Physiotherapy and Dep. of Pulmonology Silkeborg Central Denmark Region

Sponsors (12)

Lead Sponsor Collaborator
Naestved Hospital Aalborg University Hospital, Allergi og Lungeklinikken Helsingør, Association of Danish Physiotherapists, Bispebjerg Hospital, Hvidovre University Hospital, Odense University Hospital, Region Zealand, Regionshospitalet Silkeborg, Slagelse Hospital, TrygFonden, Denmark, Zealand University Hospital

Country where clinical trial is conducted

Denmark, 

References & Publications (2)

Andreasson KH, Skou ST, Ulrik CS, Madsen H, Sidenius K, Assing KD, Porsbjerg C, Bloch-Nielsen J, Thomas M, Bodtger U. Breathing Exercises for Patients with Asthma in Specialist Care: A Multicenter Randomized Clinical Trial. Ann Am Thorac Soc. 2022 Sep;19( — View Citation

Andreasson KH, Skou ST, Ulrik CS, Madsen H, Sidenius K, Jacobsen JS, Assing KD, Rasmussen KB, Porsbjerg C, Thomas M, Bodtger U. Protocol for a multicentre randomised controlled trial to investigate the effect on asthma-related quality of life from breathing retraining in patients with incomplete asthma control attending specialist care in Denmark. BMJ Open. 2019 Dec 31;9(12):e032984. doi: 10.1136/bmjopen-2019-032984. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Other Accelerometry (METs, TEE) Average metabolic equivalents (METs) and Total energy expenditure (TEE) will be measured by an accelerometer (BodyMedia SenseWear®) monitoring during 5 days. Change from baseline to 3 and 6 months follow up.
Other Spirometry (FVC, PEF) Spirometry (MedikroPro) will be used to measure forced vital capacity (FVC), units liter, and peak expiratory flow rate (PEF), units liter/minute. Change from baseline to 6 months follow up.
Other Inspiratory muscle strength (MIP) Inspiratory muscle strength (MIP), units cmH2O, will be measured by POWER Breathe®, KH2. Change from baseline to 6 months follow up.
Other Adverse events (AE) Adverse events (AE) e.g. emergency room visits will be extracted from medical report and from EasyTrial.Net (research database) 12 months before baseline until 12 months follow-up.
Other Register data from medical report Comorbidity (types and numbers) and number of consultations at nurse and/or pulmonologist. 12 months before baseline until 12 months follow-up.
Other Register of Medical Product Statistics For precise measure extraction of prescriptions on anti-asthmatic medication and comorbid medication on ATC-codes. 12 months before baseline until 12 months follow-up.
Other Foster Score Foster Score is used to investigate the number of days during the last seven days the participant took his/her asthma medication as prescribed. The participant is interviewed at the inhalationcheck, and will answer 0 to 7 referring to the number of days. Assessed again at 6 months follow up by questionnaire. Change from inhalationcheck (before baseline) to 6 months follow up.
Other Adherence to physiotherapy-sessions Adherence to the physiotherapist-sessions during the 12 weeks intervention will be investigated though data extracted in the electronically medical records. At 12 months follow-up.
Other Patient Acceptable Symptom State (PASS) The dichotomous Patient Acceptable Symptom State (PASS) evaluates treatment success in the patient's perspective. The PASS will only be measured at the follow ups. At 3, 6, and 12 months follow up.
Other Participant-reported treatment failure. If the participant answers 'no' to Patient Acceptable Symptom State (PASS) he/she will be asked to consider whether the treatment has failed. At 3, 6, and 12 months follow up.
Other Breath Holding Time (BHT) Time in seconds when nose is pinched at functional residual capasity until first respiratory muscle movement. Change from baseline to 6 months follow up.
Other Count Scale (CS) Count Scale (CS) includes the count scale number (starting from 1 counting to as high as possible) and time spent while counting at a constant speed of 2 counts per second during one exhalation from max inspiratory level. CS has lower coefficient of variance at lower exercise level, than Borg Scale. Change from baseline to 6 months follow up.
Other Borg CR10 Dyspnoe will be measured before and after 6MWD by the Borg CR10. Change from baseline to 6 months follow up.
Other EuroQual-5Dimension (EQ-5D) EuroQual-5Dimension (EQ-5D), a generic QOL tool that has high responsiveness, is translated into Danish and cross-cultural validated. EQ-5D index score of has been derived in the Danish population. Change from baseline to 3, 6, and 12 months follow up.
Other Socio Economic Status (SES) Socio Economic Status (SES) includes education, work status, income. Only assessed at baseline.
Other Gender, Body Mass Index, smoking status, age Participants gender, Body Mass Index (e.g., weight and height will be combined to report BMI in kg/m^2), smoking status (smoker/ former smoker/ non-smoker), and age will be self-reported at baseline. Only assessed at baseline.
Primary Mini Asthma Quality of Life Questionnaire (MiniAQLQ) MiniAQLQ is a disease-specific patient-reported outcome on experiences during the previous two weeks. The original version of AQLQ (32 items) is recommended for clinical use, whereas this shortened version is suggested for research. In moderate to severe asthma cohorts, MiniAQLQ has good reliability (ICC 0.83-0.86) and strong validity (criteria validity to AQLQ, r=0.80; construct validity against ACQ, r=0.69). MiniAQLQ has 15 items in four domains (symptoms, activity limitation, emotions, environment), which are answered using a 7-point Likert scale (1=maximum impairment; 7=no impairment). Primary endpoint: Change from baseline to 6 months follow up. Secondary endpoints will be 3 and 12 months follow up.
Secondary Asthma Control Questionnaire (ACQ6) Asthma Control Questionnaire (ACQ6) will be used in the 6 sub-score version omitting FEV1 % of predicted. The outcome-score is the mean of 6 sub-scores (5 questions about symptoms, 1 question in use of reliever medication (beta2-agonist)) using a 7-point Likert scale (0=fully controlled; 6=severely uncontrolled) Change from baseline to 3, 6, and 12 months follow up
Secondary Nijmegen Questionnaire (NQ) A Nijmegen Questionnaire (NQ)-score > 23 suggests symptomatic hyperventilation, but is typically used to define DB. Change from baseline to 3, 6, and 12 months follow up
Secondary Hospital Anxiety and Depression Scale (HAD) Hospital Anxiety and Depression Scale (HAD) uses a 0-21 scale; a low score indicates least mental health problems. Change from baseline to 3, 6, and 12 months follow up
Secondary Global perceived effect rate (GPE) Global perceived effect rate (GPE) will be used as a retrospective evaluation of effect in asthma-related QOL as well as in asthma control on a 7-point Likert scale. GPE will only be measured at the follow ups. At 3, 6, and 12 months follow up
Secondary Accelerometry (PAL, number of steps) Physical activity level (PAL) and numbers of steps will be measured by an accelerometer (BodyMedia SenseWear®) monitoring during 5 days Change from baseline to 3 and 6 months follow up.
Secondary Spirometry (FEV1) Spirometry (MedikroPro) will be used to measure forced expiratory volume in first second in liter (FEV1). Change from baseline to 6 months follow up.
Secondary 6 Minutes Walk Distance (6MWD) 6 Minutes Walk Distance (6MWD); 6MWD is the most typically used function-score in pulmonary research. Change from baseline to 6 months follow up.