The Mobile COPD Status Test (mCST)

Study Overview
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Brief Summary
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Up tp now, disease activity of COPD patients in their home environment has usually been recorded by questionnaires (e.g. COPD assessment test). Digital multifactorial measurements, via the mobile COPD Status test app, offer a new way of displaying disease activity. However, there is no independent study that has examined whether digitally collected parameters correlate with the common used measurement instruments for COPD patients (both in cross-sectional and longitudinal course). The aim of this exploratory study is to investigate the correlation between the mobile COPD Status test (mCST App, KAIA Health) and a conventional collected clinical data set of routine measurements as well as the subjective symptoms and activity perception of COPD patients in their home environment, with and without exacerbation.

Detailed Description
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In total 130 COPD patients will be included prospectively in this multicenter trial during an inpatient pulmonary rehabilitation program at the Schoen Klinik Berchtesgadener Land, Schönau am Koenigssee, (Germany) or during a stay (inpatient or outpatient) at the Klinikum Nuremberg (Germany). In general, the study is divided into two parts - study part I, within the duration of the pulmonary rehabilitation program/ hospital stay and study part II, in the home environment (24 weeks). Study part I: Visit 1 (day 0, in the clinic) + Visit 2* (day 14+/-5, in the clinic/outpatient) Each study participant is given a smartphone. Under the guidance of study personnel, data collection of the following parameters is carried out via KAIA mCST App): four standardized questions regarding coughing frequency, expectoration, chest tightness and shortness of breath during exercise Dyspnea at rest Breath sounds via microphone Inspiration/expiration length via microphone Respiratory rate via smartphone measurements Physical performance via the sit-to-stand test (1min) with counting the repetitions and checking the correct execution via smartphone camera Gait analysis (2x 10 steps walking) via acceleration sensors of the smartphone or via motion tracking by camera during defined gait measurements. The mCST app takes about 15 minutes to complete. Additionally, clinical routine data will be collected: medical history body plethysmography & blood gases EKG health related quality of life dyspnea 6-minute walk distance 1-minute-sit to stand test Study part II: Visits 3 to 26 (week 3 to 26, in participants home environment) From study visit 3 on, participants are observed weekly in their home environment for a total of 24 weeks. No further clinic visits take place. Disease activity is measured weekly as patient reported outcomes using the mCST app (for details see description of visit 1/2, part 1). In addition to the weekly mCST app, patients are invited to fill out daily a symptom diary before going to bed. The symptom diary contains the EXACT questionnaire and an activity questionnaire. *Visit 2 is optional

Official Title
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The Mobile COPD Status Test (mCST) - Investigation of the Correlation of a Digital Measurement With Disease Relevant Endpoints in Patients With COPD

Conditions
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Chronic Obstructive Pulmonary Disease

Intervention / Treatment
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* Other: usual medical care


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: hospitalisation at Schoen Klinik Berchtesgadener Land or Klinikum Nuremberg Chronic obstructive pulmonary disease GOLD A-D sufficient german language and samrtphone skills to understand the mCST app sufficient good WLAN Connection in the domestic environment Exclusion Criteria: presence of comorbidities which could interfere the course of the trial (e.g. cognitive deficits, neurological or orthopedic diseases) significant mental illness, legal incapacity or limited legal capacity patients who are unable or unwilling to perform the study activities acording to the protocol

Ages Eligible for Study
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Minimum Age: 40 Years
Maximum Age: 75 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| COPD patients<br> | Other: usual medical care<br>* Prospective monitoring of clinical Outcomes and digital collected outcomes via the mobile COPD staus test app.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Correlation between usual physical exercise tests and exercise test measured via mobile COPD status test app (mCST) | Correlation between the 6-minute walk test distance (clinical routine) and the number of repetitions of the 1-minute sit-to-stand-test (mCST app) | Visit 1 (Day 0) | 
| Correlation between usual physical exercise tests and exercise test measured via mobile COPD status test app (mCST) | Correlation between the 6-minute walk test distance (clinical routine) and the number of repetitions of the 1-minute sit-to-stand-test (mCST app) | if applicable Visit 2 (Day 14) | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Correlation between COPD Assessment test and perception of disease activity measured via mobile COPD status test app (mCST) | Correlation between standardized questions about COPD activity/ symptoms via the mCST app and the COPD Assessment Test | weekly up to 26 weeks (Visit 1 to Visit 26) | 
| Correlation between modified medical research scale (mMRc) and perception of dyspnea measured via mobile COPD status test app (mCST) | Correlation between standardized questions about dyspnea collected via the mCST app and the modified medical research scale | Visit 1 (Day 0) | 
| Correlation between modified medical research scale (mMRc) and perception of dyspnea measured via mobile COPD status test app (mCST) | Correlation between standardized questions about dyspnea collected via the mCST app and the modified medical research scale | if applicable Visit 2 (Day 14) | 
| Correlation between lung function parameters and inspiratory-/expiratory duration measured via mobile COPD status test app (mCST) | Correlation between inspiratory-/ expiratory duration via the mCST app and FEV1, RV, TLC, VC | Visit 1 (Day 0) | 
| Correlation between lung function parameters and inspiratory-/expiratory duration measured via mobile COPD status test app (mCST) | Correlation between inspiratory-/ expiratory duration via the mCST app and FEV1, RV, TLC, VC | if applicable Visit 2 (Day 14) | 
| Correlation between mCST app and symptom diary (EXACT questionnaire) | Correlation between standardized questions about COPD activity/symptoms via the mCST app and the EXACT questionnaire, which consists of 14 questions to quantify exacerbations. | weekly up to 26 weeks (Visit 1 to Visit 26) | 
| Correlation between mCST app and symptom diary (Freiburger activity questionnaire) | Correlation between standardized questions about COPD activity/ symptoms via the mCST app and the Freiburger activity questionnaire, which consists of 12 items and measures the duration and frequency of various basic, everyday and sports activities of the past week | weekly up to 26 weeks (Visit 1 to Visit 26) | 
| Differences in outcomes of the mobile COPD status test app (mCST) between patients without and with exacerbations during the study period | Change in the mCST app parameters during the trial period in stable COPD patients an COPD patients with an acute exacerbations during the study period | weekly up to 26 weeks (Visit 1 to Visit 26) | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Telehealth, disease progression, disease activity