| Recruiting | A Modified Baveno Classification of Obstructive Sleep Apnoea Based on Sleepiness and Cardiovascular Scores Obstructive Sleep Apnea (OSA) | — | 2025-03-24 |
| Completed | Multiple Breath Washout as a Method for Diagnosing Lung Diseases Pulmonary Fibrosis, COPD, Asthma | — | 2021-06-21 |
| Completed | Clinical Course and Treatment of COVID-19 Inpatients in Hospital COVID-19 | — | 2020-08-01 |
| Completed | Epidemiological Analysis of Ambulant Patients in a COVID-19 Outpatient Clinic COVID-19 | — | 2020-07-02 |
| Completed | Epidemiological Multicohort Study of Latent COVID-19 Infections COVID-19 | — | 2020-07-01 |
| Terminated | Influence of an Inverse Pressure Ramp in Long-term Non-invasive Ventilation on Dyspnea in the Morning After Th Noninvasive Ventilation, Dyspnea | N/A | 2019-08-01 |
| Unknown | Respiratory Muscle Strength in Patients With Obesity Hypoventilation Syndrome (OHS) or With a Precursor of the Obesity Hypoventilation Syndrome | — | 2019-05-01 |
| Completed | The Debated Role of Sleep Studies in Patients Under Established Home Mechanical Ventilation Hypoventilation Syndrome, Chronic Obstructive Pulmonary Disease, Obesity Hypoventilation Syndrome | N/A | 2018-11-11 |
| Completed | Detection of Heterogeneity in Central Lung Cancer - EBUS-TBNA and ctDNA Analysis vs. Endobronchial Forceps Bio Lung Neoplasms | N/A | 2017-01-02 |
| Completed | Sensitivity of PDL-1-analysis From Pleural Effusion in Non-small Cell Lung Cancer Lung Neoplasms | — | 2016-10-01 |
| Completed | Different Loop Gain Phenotypes in Patients With Chronic Systolic Heart Failure and Periodic Breathing Periodic Breathing | — | 2016-06-28 |
| Completed | Effect of Positive Airway Pressure Therapy on Hospitalization and Mortality in SDB Patients With Comorbid Chro Sleep-Disordered Breathing, Pulmonary Disease, Chronic Obstructive, Heart Failure | — | 2016-05-16 |
| Completed | Sleep Disorders in Idiopathic Pulmonary Fibrosis Idiopathic Pulmonary Fibrosis | — | 2016-04-26 |
| Completed | Sleep-related Breathing Disorders in Cardiological Outpatients Sleep Apnea Syndromes | — | 2014-12-16 |
| Completed | Obesity in Sleep Medicine - Focusing on OHS Phenotypes Obesity Hypoventilation Syndrome (OHS) | — | 2014-04-24 |
| Completed | Hypoxia in Flight Simulation in Obese Patients Obesity, COPD, OHS | — | 2014-03-01 |
| Completed | Cardiopulmonary Exercise Testing in Interstitial Lung Disease Interstitial Lung Disease | — | 2013-10-31 |
| Completed | Travelling in Patients With Sleep Related Breathing Disorders Travel, Sleep Related Disorder | — | 2013-04-01 |
| Completed | Impact of CPAP Therapy in Obstructive Sleep Apnea on Parameters of Nocturnal Pulse Wave Analysis Obstructive Sleep Apnea | N/A | 2013-03-04 |
| Completed | Inspiratory Muscle Training During Right-heart Catheterization Right-heart Hemodynamics, Respiratory Muscle Training, Inspiratory Resistance | N/A | 2012-10-16 |
| Completed | Cryobiopsy vs. VATS in Diagnosis of Interstitial Lung Diseases Interstitial Lung Disease | — | 2012-10-16 |
| Completed | Chronic Obstructive Pulmonary Disease and Pulmonary Hypertension: Prevalence and Quality of Life Hypertension, Pulmonary, Pulmonary Disease, Chronic Obstructive | — | 2011-08-01 |
| Completed | Course and Complications of Invasive Out-of-hospital Ventilation Indication for Invasive Out-of-hospital Ventilation | — | 2009-01-01 |
| Completed | Validation of a New Automatic Bi-level Algorithm in the Treatment of Sleep-disordered Breathing Obstructive Sleep Apnea | N/A | 2008-06-01 |
| Completed | Comparison of CPAP With SOMNOventCR in Patients With Underlying Heart Disease, Combined OSA and CSR Heart Diseases, Sleep Apnea, Central, Sleep Apnea, Obstructive | N/A | 2008-05-01 |