| Not Yet Recruiting | Omega-Cold Supplementation With Free Fatty Acids for the Prevention of Respiratory Infections in Adults. Respiratory Infections | N/A | 2025-12-19 |
| Enrolling By Invitation | Nursing Needs of Patients With Cirrhosis Cirrhoses, Liver | — | 2025-11-17 |
| Completed | Blood Glucose Levels in Children During Anesthesia Fasting | — | 2023-10-01 |
| Unknown | Assessment of LF-rTMS in Patients With Visual Neglect Neglect, Hemispatial | N/A | 2023-09-15 |
| Active Not Recruiting | Retinal Biomarkers in Parkinson´s Disease Parkinson Disease | — | 2023-03-10 |
| Active Not Recruiting | The Effects of Antibiotic Exposure in Early Infancy on Vaccine Responses Immune Responses, Antibiotic Treatment | — | 2022-09-10 |
| Completed | Symptoms and Wellbeing of People Infected With Covid-19 Virus in Iceland Covid19 | — | 2020-07-01 |
| Unknown | A Feasibility Study on the Value of Pelvic Floor Training After Pelvic Organ Prolapse Surgery Pelvic Organ Prolapse | N/A | 2020-06-10 |
| Unknown | Clinical Assessment of Spatial Neglect Following Stroke Stroke | — | 2019-12-15 |
| Enrolling By Invitation | A Nationwide Phase 2 Trial of Patients With Smoldering and Active Multiple Myeloma (MM) Multiple Myeloma, Smoldering Multiple Myeloma | Phase 2 | 2019-06-24 |
| Unknown | Integration of Exercise Into Cancer Care: A Shared Care Model Cancer | N/A | 2018-10-01 |
| Completed | Arthroplasty and Modifiable Risk Factors Total Joint Arthroplasty, Risk Reduction, Surgical Site Infection | N/A | 2018-08-20 |
| Completed | Obstetric Perineal Trauma and Physiotherapy Pregnancy Complications | N/A | 2016-03-16 |
| Recruiting | Treatment as Prevention for Hepatitis C in Iceland Hepatitis C | — | 2016-01-01 |
| Unknown | EEG-cholinergic Index and Clinical Response to Treatment With Cholinesterase Inhibitors Alzheimer´s Disease | — | 2015-12-01 |
| Completed | Multi-Sensory Training and Wrist Fractures Postural Balance | N/A | 2015-05-15 |
| Completed | Effect of Allopurinol and Febuxostat on Urinary 2,8-Dihydroxyadenine Excretion Adenine Phosphoribosyltransferase Deficiency | Phase 4 | 2013-05-01 |
| Completed | Fiix-prothrombin Time for Monitoring Warfarin Thromboembolism, Arterial, Venous | Phase 2 | 2012-03-01 |
| Completed | Being Awake, Upright and Moving as the Basis for Early ICU Physiotherapy Critical Illness | N/A | 2011-11-01 |
| Completed | Acute Myocardial Infarction in Iceland, is There a Gender Difference in Treatment and Survival? Acute Myocardial Infarction, Coronary Angiography | — | 2008-01-01 |
| Unknown | Health of Young European Families and Fish Consumption Overweight, Metabolic Syndrome X, Bone Resorption | Phase 1 | 2004-01-01 |