| Not Yet Recruiting | Visualization of the Effects of Guideline-directed Medical Therapy (GDMT) on Improving Adherence and Quality o Adherence, Medication, Adherence, Treatment, Heart Failure | EARLY_Phase 1 | 2026-03-01 |
| Recruiting | Quality Improvement Project to Reduce Preoperative Fasting Times Before Elective Procedures Preoperative Fasting, Perioperative Patient Comfort / Quality of Care, Postoperative Nausea and Vomiting (PONV) | — | 2026-01-30 |
| Completed | Multispectral Optoacustic Imaging in Patients With Myositis Myositis | — | 2025-03-03 |
| Recruiting | Perioperative Interdisciplinary, Intersectoral Process Optimization in Heart Failure Heart Failure | N/A | 2024-09-01 |
| Recruiting | Non-invasive Measurement of the Hypotension Prediction Index for the Reduction of Intraoperative Hypotension Intraoperative Hypotension, Acute Kidney Injury, Myocardial Injury After Non-cardiac Surgery | N/A | 2024-08-01 |
| Active Not Recruiting | Association Between Biomarkers and Kidney Function Decline in Pulmonary Hypertension Pulmonary Hypertension, Chronic Kidney Disease | — | 2024-05-31 |
| Recruiting | BJH-SDS Validation of the German Translation Dysphagia, Stroke, Acute | — | 2024-04-15 |
| Recruiting | Topical Application of PRF Before Radiation Therapy PRF | N/A | 2023-12-01 |
| Recruiting | Giessen Stroke Registry Stroke, Acute, Comorbidities and Coexisting Conditions, Critical Care | — | 2023-11-30 |
| Unknown | Multimodal Assessment of Frailty in Acute Stroke Patients Stroke, Frailty | — | 2023-08-01 |
| Completed | Removal Of CytoKines With cytoSorbenTs After Inflammatory Response Reaction During Cardiac Surgery Inflammatory Response | N/A | 2023-05-01 |
| Recruiting | Dysphagia After Transesophageal Echocardiography in Acute Stroke - Follow Up Trial Ischemic Stroke, Acute, Dysphagia Following Cerebrovascular Accident | — | 2023-05-01 |
| Unknown | Monitoring of the Influence of Approved PH-therapies RV-PA Coupling Pulmonary Hypertension | — | 2023-02-13 |
| Unknown | Urin-based Point-of-Care Testing for Direct Oral Anticoagulants in Stroke Patients Stroke | — | 2023-01-01 |
| Unknown | Effects of Invasive Mechanical Ventilation on the Right Ventricular Function Pneumonia, Atelectasis, ARDS | — | 2022-11-04 |
| Unknown | RV Systolic and Diastolic Function and Contractile Reserve Under Acute Exercise and in Response to Chronic Exe Pulmonary Hypertension, Right Heart Failure, Heart Failure | N/A | 2022-07-01 |
| Active Not Recruiting | Pulmonary Vascular Dysfunction as a Cause of Persistent Exertional Dyspnea After Coronavirus Disease (COVID-19 COVID-19 | — | 2022-04-15 |
| Completed | Perioperatively Assessed Biomarker I-FABP Level for Prediction of Acute Mesenteric Ischemia and Its Correlatio Cardiac Surgery With Cardiopulmonary Bypass, Acute Mesenteric Ischemia, Acute Kidney Injury | — | 2022-03-01 |
| Completed | Implementation of FEES in Spinal Muscle Atrophy Spinal Muscular Atrophy | N/A | 2022-02-01 |
| Terminated | Proenkephalin A and Kidney Replacement Therapy Acute Kidney Injury | — | 2021-11-09 |
| Completed | Kidney Histopathology After COVID-19 and SARS-CoV-2 Vaccination Covid19, Vaccination Reaction | — | 2021-09-18 |
| Recruiting | Oral and Olfactory Complications of Recovered COVID-19 Patients Oral Complication, Dysgeusia, Olfactory Disorder | — | 2021-05-01 |
| Completed | Right Atrial Fibrosis in Pulmonary Hypertension Pulmonary Hypertension, Chronic Thromboembolic Pulmonary Hypertension, Pulmonary Arterial Hypertension | — | 2021-04-30 |
| Completed | Guideline-recommended Basic Parameter Adherence in Neurocritical Care Patients Stroke | — | 2021-01-01 |
| Unknown | Fertility and Cardiovascular Risk in Men With Metabolic Syndrome Metabolic Syndrome | N/A | 2021-01-01 |
| Completed | Exercise Hemodynamic, Right Ventricular Coupling and Echocardiography in Pulmonary Hypertension Hypertension, Pulmonary, Hypertension, Pulmonary Arterial | — | 2020-11-01 |
| Recruiting | Multidimensional Assessment of Infant, Parent and Staff Outcomes During a Family Centered Care Enhancement Pro Family Centered Care | — | 2020-10-01 |
| Completed | GM-CSF Inhalation to Prevent ARDS in COVID-19 Pneumonia Severe Acute Respiratory Syndrome (SARS) Pneumonia, COVID-19 Pneumonia | Phase 2 | 2020-09-24 |
| Recruiting | Combination of Ranibizumab and Targeted Laser Photocoagulation Central Retinal Vein Occlusion With Macular Edema | Phase 3 | 2020-08-25 |
| Recruiting | Giessen Pulmonary Hypertension in Lung Cancer Registry Pulmonary Hypertension Due to Lung Diseases and Hypoxia | — | 2020-06-29 |
| Completed | Influence of the "Hypotension Probability Index" on Intraoperative and Postoperative Hypotension in ENT- and O Hypotension, ENT Disease, Acute Kidney Injury | N/A | 2020-05-30 |
| Recruiting | Sequelae of Sars-CoV-2 Infections Lung Diseases, Cardiac Disease, Inflammatory Reaction | — | 2020-05-20 |
| Completed | Low-flow Extracorporeal Carbon Dioxide Removal in COVID-19-associated Acute Respiratory Distress Syndrome ARDS, Hypercapnic Respiratory Failure, AKI | N/A | 2020-05-03 |
| Completed | Acute Kidney Injury and Acute Kidney Disease in COVID-19 Acute Kidney Injury, Corona Virus Infection | — | 2020-04-21 |
| Recruiting | PVRI GoDeep Global Deep Phenotyping Meta-Registry for Pulmonary Hypertension Pulmonary Hypertension, Global Health | — | 2020-01-30 |
| Completed | The "Hypotension Prediction Index" in Patients Undergoing Lung Surgery Hypotension, Hemodynamic Instability, Renal Failure | N/A | 2019-11-20 |
| Completed | DKK3 for Prognosis and Monitoring of GFR Decline in Heart Failure Heart Failure, Chronic Kidney Diseases | — | 2019-10-14 |
| Completed | Pain Perception Following Computer-Controlled vs. Conventional Dental Anesthesia Pain Perception | N/A | 2019-09-01 |
| Completed | The Use of PlCO-Vacuum-System on Sternal Wounds Cardiac Surgery, Wound Infection, Wound Healing Disorder | N/A | 2019-07-01 |
| Completed | Comparison of Coronary Lithoplasty and Rotablation Coronary Artery Disease, Calcified Atheroma | N/A | 2019-06-28 |
| Completed | Renal Venous Flow and Cardiac Surgery-associated Acute Kidney Injury Acute Kidney Injury, Cardiorenal Syndrome | — | 2018-12-20 |
| Completed | Immunosuppressive Regimen on Changes in Renal Function and Transplant Rejection Rate in Patients With Lung Tra Lung Transplant; Complications, Chronic Kidney Diseases | — | 2018-08-29 |
| Enrolling By Invitation | Endtidal Carbon Dioxide for Earlier Detection of Pulmonary Hypertension Hypertension, Pulmonary, Hypertension;Pulmonary;Primary, Chronic Thromboembolic Pulmonary Hypertension | — | 2018-05-02 |
| Completed | Acute Kidney Injury After Cardiac Surgery Acute Kidney Injury | — | 2018-03-01 |
| Completed | (RIGHT HEART III Study - Right Ventricular Hemodynamic Evaluation and Response to Treatment) Pulmonary Arterial Hypertension (PAH) | Phase 2 | 2018-03-01 |
| Unknown | Smokerface Mirroring in Brazil RCT Smoking | N/A | 2018-02-01 |
| Terminated | Validation of Aspiration Risk Assessment in Stroke Units Stroke, Acute | N/A | 2018-02-01 |
| Unknown | Sunface Mirroring RCT in Brazil Skin Cancer | N/A | 2018-02-01 |
| Recruiting | Changes in Sensitivity, Taste and Smell in Stroke Patients Dysphagia, Stroke | — | 2017-10-01 |
| Completed | Hypotension Probability Index in Anesthesia Hip Disease, Hypotension, Surgery | N/A | 2017-06-22 |
| Completed | Acute Response of Iloprost Inhalation Using the Breelib Nebulizer in Pulmonary Arterial Hypertension Pulmonary Hypertension, Pulmonary Arterial Hypertension | N/A | 2017-05-01 |
| Completed | Short- and Long-Term Renal Outcomes Following Lung Transplantation Lung Transplantation, Acute Kidney Injury | — | 2017-03-22 |
| Completed | Kidney Disease and Pulmonary Hypertension Pulmonary Hypertension | — | 2017-02-01 |
| Completed | Changes in Renal Function and Body Composition in Pulmonary Hypertension Pulmonary Hypertension, Renal Function Abnormal | — | 2017-01-25 |
| Unknown | The Effects of Commercial Air Travel on Patients Suffering From Pulmonary Hypertension Pulmonary Hypertension, Pulmonary Arterial Hypertension | — | 2017-01-19 |
| Completed | Predictive Value of Renal Venous Flow Profiles for Adverse Outcomes in Right Heart Failure Pulmonary Hypertension, Cardiorenal Syndrome, Heart Failure | — | 2016-11-01 |
| Unknown | Education Against Tobacco Randomized Trial in Brazil Tobacco Prevention | N/A | 2016-10-01 |
| Recruiting | Prevalence of Gag Reflex in Healthy Persons and Across Different Patient Groups and Its Relevance in Dysphagia Neurological Diseases or Conditions | N/A | 2016-08-10 |
| Completed | Granulocyte Macrophage-Colony Stimulating Factor (GM-CSF) Inhalation to Improve Host Defense and Pulmonary Bar ARDS | Phase 2 | 2016-06-01 |
| Unknown | Education Against Tobacco Randomized Trial in Bosnia and Herzegovina Tobacco Prevention, Tobacco, Schools | N/A | 2016-05-01 |
| Unknown | Education Against Tobacco Randomized Trial Tobacco, Prevention, Adolescents | N/A | 2016-03-01 |
| Unknown | Right Ventricular Haemodynamic Evaluation and Response to Treatment Right Ventricular Dysfunction | N/A | 2016-01-01 |
| Completed | Second International Inter-Group Study for Classical Hodgkin Lymphoma in Children and Adolescents Classical Hodgkin Lymphoma | Phase 3 | 2015-10-01 |
| Unknown | A Photoaging Mobile App Promoting Poster Campaign for Preventing Smoking in Secondary Schools Tobacco Addiction, Smoking Related Diseases, Adolescent Smoking | N/A | 2015-09-01 |
| Withdrawn | Prophylactic IABP in High-risk Patients Undergoing CABG Myocardial Infarction, Coronary Artery Disease | N/A | 2015-06-01 |
| Completed | Natriuretic Peptides After Left Atrial Appendage Amputation Atrial Fibrillation | N/A | 2015-05-01 |
| Completed | Preoperative Prediction of Acute Kidney Injury After Cardiac Surgery Acute Kidney Injury | — | 2014-11-01 |
| Completed | Acute Kidney Injury Following Cardiac Surgery Acute Kidney Injury | — | 2014-11-01 |
| Completed | Effects of Oral Protein Load on Kidney Function in Patients Undergoing Cardiac Surgery Acute Kidney Injury | — | 2014-11-01 |
| Completed | FEES to Determine Neurological Intensive Care Patients' Oral Diet Dysphagia, Aspiration Pneumonia, Deglutition Disorders | N/A | 2014-01-14 |
| Completed | Fermented Soybean Supplementation Among Active Pulmonary Tuberculosis Patients With Standard Therapy in Indone Pulmonary Tuberculosis, Body Weight Changes, Motor Activity | N/A | 2013-11-01 |
| Completed | Transesophageal Echocardiography: Dysphagia Risk in Acute Stroke (T.E.D.R.A.S. Trial) Acute Stroke, Dysphagia, Swallowing Disorder | N/A | 2013-06-12 |
| Completed | Erectile Dysfunction in Severe Obstructive Sleep Apnea: Effects of CPAP Therapy Obstructive Sleep Apnea, Erectile Dysfunction | — | 2012-05-01 |
| Completed | Change in Peripheral Oxygen Saturation by Using Different Breathing Procedures in High Altitude Acute Mountain Sickness | N/A | 2011-07-01 |
| Unknown | Effects of Different Types of Exercise Interventions in Patients With Type 2 Diabetes Type 2 Diabetes | N/A | 2011-04-01 |
| Completed | Iron Metabolism in Dragon Boat Athletes Anaemia | N/A | 2011-04-01 |
| Terminated | Inhaled Steroids and Control of Severe Asthma Severe Persistent Asthma | — | 2010-09-01 |
| Unknown | Elimination of Microemboli During Aortic Valve Replacement Neurocognitive Outcome After Aortic Valve Replacement | N/A | 2010-03-01 |
| Completed | Effects of Exercise Intervention and Rehabilitation Exercise Intervention in Patients With Type 2 Diabetes Diabetes, Diabetes Mellitus, Non-Insulin-Dependent | N/A | 2010-02-01 |
| Completed | Impact of Rituximab (RTx) Induction and Living Donation on Immunoregulation and Virus Control in Renal Transpl Kidney Transplantation, Rituximab (RTx), Living Donors | Phase 2 | 2010-01-01 |
| Withdrawn | Intravenous Immunoglobulins in Complex-regional Pain Syndrome Complex Regional Pain Syndrome Type 1 | Phase 3 | 2009-08-01 |
| Completed | Risk of Hypoglycemia in Type 2 Diabetes Type 2 Diabetes | — | 2008-07-01 |
| Completed | Triple Target Treatment (3T) Which Combines Stimulation With Amplitude Modulated Middle Frequency (AM-MF), Ele Fecal Incontinence | Phase 3 | 2007-07-01 |
| Completed | Impact of Immunosuppressive Regimens on Polyomavirus-related Transplant Nephropathy Polyomavirus Infections | Phase 4 | 2004-09-01 |
| Recruiting | CEDATA GPGE - a Patient Registry for Children and Adolescents With Inflammatory Bowel Disease Inflammatory Bowel Disease (IBD) | — | 2004-09-01 |
| Recruiting | Therapy Optimisation for the Treatment of Hairy Cell Leukemia Hairy Cell Leukemia | Phase 2 / Phase 3 | 2004-05-01 |
| Completed | Bendamustine Plus Rituximab Versus CHOP Plus Rituximab Non-Hodgkin Lymphomas, Follicular Lymphomas, Immunocytomas | Phase 3 | 2004-01-01 |
| Completed | Bendamustine Plus Rituximab Versus Fludarabine Plus Rituximab Non-Hodgkin's Lymphoma, Mantle Cell Lymphoma | Phase 3 | 2003-09-01 |
| Completed | Comparison of Insulin Glargine and NPH Insulin at Night and at Hypoglycemia in Type 2 Diabetes Diabetes | — | 2003-07-01 |
| Completed | Mechanisms of Glucose Counterregulation in Pancreatic Islet Transplantation Type 1 Diabetes Mellitus | Phase 4 | 2001-11-01 |
| Completed | Immunoregulatory Effects of Immunoglobulin Induction Therapy in Renal Transplant Recipients Renal Failure, Chronic, Renal Transplantation | EARLY_Phase 1 | 2001-10-01 |
| Completed | Efficacy Study of a Standardized Pollen Extract Preparation (Cernilton) to Treat Inflammatory Chronic Prostati Chronic Prostatitis, Chronic Pelvic Pain Syndrome | Phase 3 | 1999-12-01 |
| Completed | Th1, Th2 and Monokine Responses as Risk Factors of Renal Transplant Rejection Renal Failure, Chronic | — | 1998-01-01 |
| Recruiting | Giessen Pulmonary Hypertension Registry and Biobank Pulmonary Hypertension | — | 1993-07-01 |
| Completed | Metabolic Response of Slow Released Carbohydrates in Diabetes Mellitus Type 2 Diabetes | Phase 1 / Phase 2 | — |