There are about 13332 clinical studies being (or have been) conducted in Netherlands. The country of the clinical trial is determined by the location of where the clinical research is being studied. Most studies are often held in multiple locations & countries.
This study aims to evaluate the electrophysiological properties of the heart conduction system in patients with (increased risk of) ventricular tachyarrhythmias (VTA) and sudden cardiac arrest, and in a control cohort. The electrophysiological properties will be measured with the relatively new technique ECG-Imaging (ECGI). Moreover, clinical data of subjects will be gathered. By combining the data from the data gathering and the results of ECGI, the investigators hope to increase mechanistic understanding of and risk stratification for VTAs. The investigators aim to be able to identify patients at risk of an arrhythmic event, and aim for better treatment strategies in the future.
Fetal and neonatal alloimmune thrombocytopenia (FNAIT) is a disease caused by allo-immunisation during pregnancy. If left untreated, FNAIT can lead to severe fetal intracranial haemorrhage. This complication can be prevented by weekly administration of intravenous immunoglobulin (IVIg) to the mother during pregnancy. Knowledge on long-term development of FNAIT survivors with or without IVIg treatment is very limited but an important subject in the counselling of parents of newly diagnosed cases. To evaluate the long-term neurodevelopmental outcome in two groups of children with FNAIT will be asked to participate in our study in an outpatient clinic setting.
This is a prospective multi-center international registry. The objective of this registry is to collect prospective data on patients undergoing catheter ablation for Ventricular Tachycardia (VT) and Premature Ventricular Contractions (PVC). The registry will be used for clinical monitoring, research, and quality improvement purposes.
Multi-center, prospective, randomized controlled study comparing PCI guided by angiography versus iFR Co-Registration using commercially available Philips pressure guidewires and the SyncVision co-registration system, employing an adaptive design study for interim sample size re-estimation.
It has been shown that a common cause for snoring and throat obstruction (obstructive sleep apnoea (OSA)) is excessive loss of muscle tone in the throat when the investigators go to sleep. This results in the partial collapse of the throat (snoring) or complete collapse (OSA) during sleep. 45% of the male population snore. Sleep apnoea affects 4 to 6% of the population and is associated with increased incidence of raised blood pressure, heart attacks and strokes. Although there are several lifestyle practices associated with snoring such as smoking, obesity and drinking, a significant proportion of people may snore despite not being associated with these. A solution to this issue is to improve the muscle tone of the throat so that it doesn't collapse so easily. Several studies have shown that certain types of throat exercises can help reduce snoring. Further studies have also shown that using electrical stimulation to exercise the tongue muscles has the same effect. From this, doctors in the United Kingdom (UK) have developed a new type of device, eXciteOSA, that allows a more accurate and comfortable way of delivering this energy to exercise the tongue muscles. The device works by stimulating the tongue muscles during the day so that the tongue is less likely to collapse during sleep. It is a form of "workout" for the tongue and like other physical exercise regimes, it needs to be repeated regularly for a few weeks to take effect. The aim of this study is to see if the eXciteOSA device is as effective as the previous methods and if it can reduce snoring and improve sleep quality. This will be achieved by participants using the eXciteOSA once daily for a six week period. A two night sleep study with watchPAT along with a polysomnography will be completed before and after the therapy to compare results. Questionnaires on sleep quality and quality of life will also be completed pre and post therapy.
Chronic Kidney Disease (CKD) is a worldwide major public health problem that is associated with an increased incidence of kidney failure and cardiovascular events, that lead a high burden for affected patients and high costs for society. Symptoms of CKD occur late, when kidney function drops to below 30%. At that time preventive measures will have only limited efficacy. Protein excretion in urine has increasingly been recognized as early marker of CKD, and is often associated with high blood pressure, diabetes, and/or high cholesterol levels. These are all important risk factors for progression of kidney and cardiovascular disease. Population screening for urinary protein loss could detect a considerable number of subjects with yet unknown risk factors for progressive kidney and cardiovascular disease who can benefit of early intervention. However, there is no validated method for population screening yet. The aim is to to develop a home based population screening for elevated urinary protein loss. Two screening methods will be investigated, and yield and cost-effectiveness of these screening methods will be evaluated
The purpose of the present study is to evaluate cardiotoxicity during re-challenge of a different modality of fluoropyrimidine (primary end-point S-1 and secondary any other fluoropyrimidine) after having perceived cardiotoxicity with a fluoropyrimidine based regimen previously. The patient population is being treated for solid tumors.
Problem: With increasing numbers of cancer survivors, strategies to prevent long-term complications in cancer patients become more important. Adolescent and Young Adult (AYA) Head and Neck Cancer survivors treated with radiotheray (RT) are prone to long-term complications, especially vascular and psychosocial complications. Although several studies point to the importance of these long-term complications, structured survivorship care for AYA HNC survivors is still lacking. Primary objective: To investigate in AYA HNC survivors treated with unilateral RT at least 5 years before, the long-term vascular complications in terms of carotid wall changes (ultrasonography, MRI), cerebral vascular complications ((silent)brain infarctions, white matter lesions) and Cardiovascular Risk Management profile. Secondary objective: To investigate in AYA HNC survivors treated with unilateral RT at least 5 years before, the long-term psychosocial complications (subjective memory complaints, Depression, Anxiety, Fatigue, Speach handicap, Anxiety for recurrence, Quality of Life, objective cognitive failure) Study design Prospective cohort study. Patient population AYA HNC survivors ≥ 5 years after unilateral RT, either alone or in combination with surgery and/or chemotherapy. Controls The ultrasonography (Intima Media Thickness, elastography) and MRI measurements of the irradiated carotid wall will be compared to the non-irradiated carotid wall. Cognitive performance will be compared to normative data. The cognitive performances of the right hemisphere tests will be compared to the cognitive performances of the left hemisphere tests. The frequency of silent brain infarcts and vascular white matter lesions of the irradiated vascular territory will be compared with the non-irradiated territory. Intervention Structured survivorship care ≥ 5 years after RT conform the Personalized Cancer Survivorship Care Model of the Radboudumc Expertisecenter of late effects after cancer, complemented with carotid ultrasonography (IMT and elastography), MRI of the carotid arteries and brain), neuropsychological assessment battery and self-reported questionnaires concerning depression, fatigue, QoL, positive health and employment status.
Rationale: Natalizumab is an effective drug in the treatment for relapsing remitting multiple sclerosis (RRMS) and is approved by de FDA/EMA in a treatment regimen of 4-weekly 300mg natalizumab infusions. Natalizumab trough concentrations after a 4-weekly interval are high in the large majority of patients which implies a relative overdose in most patients. A recent randomized controlled trial (RCT) suggests natalizumab maintains a high level of effi-cacy in stable patients with RRMS switching to a 6 week interval. Our study group demon-strated that efficacy of natalizumab is maintained when the infusion interval is extended based on natalizumab trough concentrations (personalized extended interval dosing). This leads to fewer hospital visits, a decrease of healthcare costs and decrease of risk of compli-cations of natalizumab treatment. Objective: Our objective is to test feasibility and validate safety of personalized extended interval dosing of natalizumab starting from 6 weeks in a large real-life cohort across the Netherlands. Study design: Prospective national phase IV natalizumab cohort study. Study population: All patients, aged 18 years or older, who are currently treated with natalizumab in the Netherlands for RRMS, with a minimum of 6 consecutive infusions. Intervention: All patients currently included in the NEXT-MS trial will receive an adjusted personalized extended interval dosing treatment regimen of natalizumab based on natalizumab concentrations starting from an infusion interval of 6 weeks. Main study parameters/endpoints: Our main study endpoint is the safety (defined by radiological disease activity) of personalized natalizumab dosing in a large real-life cohort across the Netherlands. Data will be collected regarding disease activity and disability progression. A cost analysis will be performed to show the extent of cost reduction. Patients will be annually followed to assess the influence of personalized dosing on JC virus conversion, JC virus index, incidence of progressive multifocal leukoencephalopathy, treatment satisfaction and quality of life. The influence of personalized dosing on pharmacokinetics will be monitored.
The primary objective of this study is: • To evaluate the long-term safety of fostamatinib in subjects with warm antibody autoimmune hemolytic anemia (wAIHA).