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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT05946512
Other study ID # 1034/2023
Secondary ID
Status Recruiting
Phase N/A
First received
Last updated
Start date July 24, 2023
Est. completion date January 1, 2027

Study information

Verified date July 2023
Source Medical University Innsbruck
Contact Philipp Alexander Nelles
Phone 0505040
Email philipp.nelles@tirol-kliniken.at
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

From a clinical perspective, we find that many patients with Post COVID condition suffer from severe and debilitating shortness of breath, while routine pulmonary investigations fail to find the cause of the problems experienced. If dyspnea is associated with palpitations, dizziness or anxiety, patients are commonly diagnosed with "dysfunctional breathing". From a psychosomatic perspective, the symptom of dysfunctional breathing can be classified as a "functional symptom" under the umbrella term of somatic symptom disorder. Therefore, Yoga interventions with special emphasis on breath-guided relaxation are a promising approach. We aim to investigate the psycho-somatic and somato-psychic pathophysiology on a morphological, psychological, functional and biological basis underlying the symptom of dysfunctional breathing. Furthermore, we plan to investigate the mechanism of Yoga intervention on the mental and somatic symptom burden of participants with Post COVID condition. Then, we aim to compare the impact of Yoga on other groups - healthy individuals, patients with chronic obstructive lung disease (COPD), as well as those with somatic symptom disorder. As a control intervention to Yoga guided breathing exercises a social contact group will be used.


Recruitment information / eligibility

Status Recruiting
Enrollment 320
Est. completion date January 1, 2027
Est. primary completion date July 24, 2026
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 18 Years to 50 Years
Eligibility Inclusion Criteria: - Inclusion criteria for participants with Post COVID condition 1. Eligible patients will be recruited at the Respiratory Outpatient Clinic (Medical University Innsbruck, Internal Medicine II) from the PRECISE registry or from other participating clinics at Medical University Innsbruck and via local advertisement. 2. Persistent respiratory symptoms for 3 months after infection (mMRC dyspnea score = 1). 3. Absence of obstructive or restrictive lung disease or unilateral diaphragmatic paresis. 4. Medical history with symptoms compatible with DB as assessed by the physician AND Nijmegen cut-off score of >23 or reduced MIP. The last two conditions were chosen to provide a readily accessible and objectifiable entry criterion at the inclusion visit. 5. Age >= 18 years, < 50 years. 6. Sufficient knowledge of German language for interaction during Yoga and completion of questionnaires. Inclusion criteria for participants with COPD 1. Eligible patients will be recruited at the Respiratory Outpatient Clinic (Medical University Innsbruck). 2. A postbronchodilator FEV1/FVC ratio less than 0,7 obtained in functional pulmonary testing is required fo diagnosis of COPD (Global Initiative for Chronic Obstructive Lung Disease (GOLD) Science Committee, 2022). 3. Persistent respiratory symptoms for 3 months (mMRC= 1). 4. Absence of unilateral diaphragmatic paresis. 5. Medical history with symptoms compatible with DB as assessed by the physician AND Nijmegen cut-off score of >23 or reduced MIP. The last two conditions were chosen to provide a readily accessible and objectifiable entry criterion at the inclusion visit. 6. Age >= 18 years, < 50 years 7. Sufficient knowledge of German language for interaction during Yoga and completion of questionnaires Inclusion criteria for participants with somatic symptom disorder 1. Eligible patients will be recruited at University Hospital for Psychiatry I and II, Medical University Innsbruck) and via local advertisement. 2. Screening positive for somatic symptoms disorder with the following scores: SSD-12 = 23, SSS-8 = 9. 3. Persistent respiratory symptoms for 3 months after infection (mMRC= 1). 4. Absence of obstructive or restrictive lung disease or unilateral diaphragmatic paresis. 5. Absence of medical history with symptoms compatible with DB as assessed by the physician AND Nijmegen cut-off score of >23 or reduced MIP. The last two conditions were chosen to provide a readily accessible and objectifiable entry criterion at the inclusion visit. 6. Age >= 18 years, < 50 years. 7. Sufficient knowledge of German language for interaction during Yoga and completion of questionnaires. Inclusion criteria for healthy participants 1. Eligible participants will be recruited via local advertisement. 2. Absence of significant active mental or somatic disorders 3. Absence of persistent respiratory symptoms (mMRC< 1). 4. Absence of obstructive or restrictive lung disease or unilateral diaphragmatic paresis. 5. Absence of medical history with symptoms compatible with DB as assessed by the physician AND Nijmegen questionnaire and MIP within normal limits.. 6. Age >= 18 years, < 50 years. 7. Sufficient knowledge of German language for interaction during Yoga and completion of questionnaires. Exclusion Criteria: - Exclusion criteria for participants with post COVID condition 1. Conditions precluding magnetic resonance imaging (MRI) such as metal implants in the body (e.g., pacemakers, surgical devices), phobic anxiety, claustrophobia, or pregnancy. 2. Active psychiatric conditions interfering with study participation such as psychosis or acute suicidality. 3. Severe fatigue interfering with study participation. 4. Previous evidence of structural brain abnormality on the structural MRI scan. 5. Significant previous meditation or Yoga experience. 6. Patients with known carotid stenosis >70% or cardiopulmonary contraindications for tilt table and other cardiovascular autonomic function tests (e.g. Valsalva maneuver, deep breathing, standing test). Exclusion criteria for participants with COPD 1. Conditions precluding magnetic resonance imaging (MRI) such as metal implants in the body (e.g., pacemakers, surgical devices), phobic anxiety, claustrophobia, or pregnancy. 2. Active psychiatric conditions interfering with study participation such as psychosis or acute suicidality. 3. Severe fatigue interfering with study participation. 4. Previous evidence of structural brain abnormality on the structural MRI scan. 5. Medical history of post COVID condition. 6. Significant previous meditation or Yoga experience. 7. Patients with known carotid stenosis >70% or cardiopulmonary contraindications for tilt table and other cardiovascular autonomic function tests (e.g. Valsalva maneuver, deep breathing, standing test). 8. Patients dependent on a long-term oxygen therapy (LTOT ) Exclusion criteria for participants with somatic symptom disorder 1. Conditions precluding magnetic resonance imaging (MRI) such as metal implants in the body (e.g., pacemakers, surgical devices), phobic anxiety, claustrophobia, or pregnancy. 2. Other active psychiatric conditions interfering with study participation such as psychosis or acute suicidality. 3. Severe fatigue interfering with study participation. 4. Previous evidence of structural brain abnormality on the structural MRI scan. 5. Medical history of post COVID condition. 6. Significant previous meditation or Yoga experience. 7. Patients with known carotid stenosis >70% or cardiopulmonary contraindications for tilt table and other cardiovascular autonomic function tests (e.g. Valsalva maneuver, deep breathing, standing test). Exclusion criteria for healthy participants 1. Conditions precluding magnetic resonance imaging (MRI) such as metal implants in the body (e.g., pacemakers, surgical devices), phobic anxiety, claustrophobia, or pregnancy. 2. Active psychiatric conditions interfering with study participation such as psychosis or acute suicidality. 3. Previous evidence of structural brain abnormality on the structural MRI scan. 4. Medical history of post COVID condition. 5. Significant previous meditation or Yoga experience. 6. Patients with known carotid stenosis >70% or cardiopulmonary contraindications for tilt table and other cardiovascular autonomic function tests (e.g. Valsalva maneuver, deep breathing, standing test). legend: PRECISE = a study conducted with participants with post-COVID-19 condition at the Medical University of Innsbruck; mMRC score = modified medical research council score; DB = dysfunctional breathing; MIP = maximal inspiratory pressure; COPD = chronic obstructive pulmonary disease; FEV1/FVC = forced expiratory volume in one second/ forced vital capacity; SSD-12 = Somatic Symptom Disorder - B Criteria Scale; SSS-8 = Somatic Symptom Scale - 8;

Study Design


Intervention

Behavioral:
yoga
yoga breathing techniques for dysfunctional breathing
social contact
social contact as active comparator

Locations

Country Name City State
Austria Medizinische Universität Innsbruck Innsbruck Tirol

Sponsors (1)

Lead Sponsor Collaborator
Medical University Innsbruck

Country where clinical trial is conducted

Austria, 

Outcome

Type Measure Description Time frame Safety issue
Primary brain imaging 31P MRI 10 weeks
Secondary comparison with control groups resting state functional MRI (rs-MRI),diaphragmatic function in spirometry and MRI, laboratory analyses, autonomic testing, questionnaires 10 weeks