Chronic Obstructive Pulmonary Disease Exacerbation Clinical Trial
Official title:
A Pilot Randomized Controlled Trial to Examine the Feasibility and Effectiveness of a Brief Digital Mindfulness-based Intervention for COPD Patients
The purpose of this pilot study is to assess the feasibility of a brief digital mindfulness-based intervention for COPD patients and its effectiveness regarding the reduction of psychological distress as well as stress.
Background: Patients with chronic obstructive pulmonary disease (COPD) do not only suffer from somatic symptoms but also from symptoms of anxiety and depression (defined as psychological distress) as well as stress. As pharmacological interventions showed only limited effectiveness in targeting the latter, a need for additional treatment options emerges. In other chronic conditions, mindfulness-based interventions (MBIs) are effective in reducing symptoms of psychological distress and stress. Despite first promising results, research on MBIs in COPD patients is still scarce and mixed regarding their effects. Furthermore, it is crucial to implement mental health interventions adapted to the needs of COPD patients. Due to often experienced physical limitations and impaired mobility, digital MBIs seem particularly promising. Aim and Research Questions: Building on the above, this pilot randomized controlled trial aims to examine a) the feasibility of a brief digital MBI for COPD patients and b) its effects on psychological distress and stress. Methods: 30 psychologically distressed (assessed by the Hospital Anxiety and Depression Scale, HADS-A ≥ 8 or HADS-D ≥ 8) COPD patients are screened for inclusion and exclusion criteria in a telephone interview and randomly assigned to the MBI (plus treatment as usual) or waitlist control group (treatment as usual). After a single face-to-face introductory session, patients in the MBI condition are instructed to conduct at least one of four brief audio-guided mindfulness exercises (10-15min) daily for 8 weeks, delivered on their smartphones. Following an ecological momentary approach, psychological and respiratory variables (e.g. subjective stress, dyspnoea) are assessed before and after each exercise. These data will be analysed using multilevel modelling. Moreover, primary (psychological distress) and secondary outcomes (e.g. chronic stress, fatigue) are measured at baseline, 4 weeks, 8 weeks, and follow-up, including questionnaires and assessments of biological stress markers (hair cortisol, heart rate variability, electrodermal activity). The data will be analysed using repeated measures ANOVAs. Finally, in semi-structured telephone exit interviews with 15 patients of the MBI group, the intervention's feasibility will be explored using a thematic analysis approach. ;
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