There are about 13253 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.
The goal of this project is to develop and validate a reproducible scorecard for the neurological assessment of patients with leptomeningeal metastases that can be used in clinical trials including such patients, as well as in clinical practice.
Whiplash is an injury caused by the rapid forward and backward movement of the neck, leading to injuries in bones or soft tissues, along with various symptoms. Recent studies indicate that muscles affected by whiplash may show increased fat buildup and reduced muscle volume. However, these changes in muscle do not completely account for the pain and other symptoms reported. Besides soft tissues, whiplash can also injure bone structures, including the cervical spine. Until now, studies focused mainly on fractures of the cervical spine, often overlooking the position and alignment of the atlas and dens (C1 and C2). The aim of this study is to evaluate the position and alignment of the Atlas in chronic whiplash-associated disorder (grades 1 or 2) and compare it to patients with tension headache and healthy controls. Additionally, it will explore how these factors relate to pain intensity, neck movement limitations, daily activities, overall improvement, and quality of life.
The objective of this post marketing observational registry is to evaluate clinical outcomes (safety and performance) in an all-comers population with coronary artery disease (CAD) treated with the Polymer Free Sirolimus Eluting Coronary Stent Vivo ISAR and planned for an abbreviated (≤ 3 months) dual antiplatelet therapy (DAPT) regimen.
Cutaneous lupus erythematosus (CLE) is an autoimmune disease of which the pathogenesis and pathophysiology are not fully understood. Given the complex and heterogeneous character of the disease, identification, and development of specific biomarkers for diagnosis, disease subtyping, disease severity, and treatment response in CLE is challenging. Therefore, the main objective of the current study is to further characterize CLE by using a deep phenotyping approach. Moreover, the role of TLR7 activation in the pathophysiology of the various clinical subtypes of CLE will be specifically studied. With this approach the investigators aim to characterize objectively measured disease characteristics and detect novel biomarkers for CLE(-subtypes).
Sleeve gastrectomy (SG) increases gastrointestinal motility, which influences feelings of fullness and satiety. By understanding the differences in gastric emptying (GE) between patients with sufficient weight loss (Total weight loss [TWL] > 35%) and insufficient weight loss (TWL < 25%), better insight in the aetiology of weight loss after sleeve gastrectomy may be obtained. GE will be measured with scintigraphy and MRI.
Assessment of Macrophage activation syndrome in STill's disease: retrospective chart analysis of patient History, Symptom resolution and Treatment characteristics
The goal of this observational trial is to study the effect of a laryngeal airway mask on the optic nerve sheath diameter, as a surrogate for intracranial pressure. The optic nerve sheath diameter of participants will be measured under general anesthesia, before, during and after insertion of a laryngeal airway mask.
In patients with angina pectoris undergoing a coronary angiography (CAG) up to 40% do not have obstructive coronary artery disease (CAD). The majority of patients with no obstructive CAD are women with a frequency of up to 70% compared to 50% in men. These patients are diagnosed as having angina and non-obstructive coronary arteries (ANOCA). There are two endotypes of ANOCA. The first endotype is microvascular angina (MVA) caused by a combination of structural microcirculatory remodelling and functional arteriolar dysregulation, also called coronary microvascular dysfunction (CMD). The second endotype is vasospastic angina (VSA) caused by epicardial coronary artery spasm that occurs when a hyper-reactive epicardial coronary segment is exposed to a vasoconstrictor stimulus. Both endotypes of ANOCA are associated with significantly greater one-year risk of myocardial infarction (MI) and all-cause mortality, have a significantly impaired quality of life and have a high health care resource utilisation. The current treatment for ANOCA consists of three aspects. The first aspect is managing lifestyle factors such as weight management, smoking cessation and exercise. The second aspect is managing known cardiovascular risk factors such as hypertension, dyslipidaemia and diabetes mellitus. And the third aspect is antianginal medication. In both endotypes ACE inhibitors or angiotensin II receptor blockers should be considered. In MVA the antianginal medication that can be used are betablocker, calcium channel blocker, nicorandil, ranolazine, ivabradine and/or trimetazidine. In VSA calcium channel blocker, long-acting nitrate and/or nicorandil can be initiated as antianginal therapy. Despite these treatment option approximately 25% of ANOCA patients have refractory angina symptoms. A possible treatment modality for ANOCA patients with refractory angina pectoris is spinal cord stimulation (SCS) or transcutaneous electrical nerve stimulation (TENS). Previous research (in patients with cardiac syndrome X) has shown that SCS improves time until angina and ischaemia, significantly less angina and an improvement in quality of life. These findings suggest that SCS and/or TENS could be a possible treatment modality for patients with ANOCA. The aim of this pilot study is to investigate whether treatment with TENS during a one month period leads to a significant reduction of angina pectoris and therefore a significant improvement in quality of life in patients with proven ANOCA, encompassing both endotypes (MVA and VSA).
Hypertrophic cardiomyopathy (HCM) is a genetic disorder characterized by asymmetric hypertrophy of the heart in absence of loading conditions like hypertension. The genetic mutation underlying HCM sets in motion a cascade of functional and metabolic changes ultimately leading to disease. HCM patients often have microvascular dysfunction and myocardial perfusion deficits, of which the aetiology has not been elucidated. Whether these changes are secondary to remodelling or primarily caused by endothelial dysfunction is unclear. As the pathomechanism of HCM is thought to be a cascade of changes, it is important to gain more insight in the perfusion and endothelial function changes throughout different stages of disease: no phenotype, mild phenotype, and advanced HCM phenotype. In this study we aim to investigate these changes in the two most common genetic mutations.
The goal of this observational cohort study is to identify and predict parameters for successful testicular sperm extraction (TESE) procedures or semen cryopreservation more accurately and to evaluate the decision making process and the experience of postponing or temporarily discontinuing puberty suppression to undergo successful fertility preservation. in transfeminine (assigned male at birth) adolescents. The main question[s] it aims to answer are: - What is the optimal timing for fertility preservation before the start or after temporarily discontinuing puberty suppression puberty suppression - How do transfeminine adolescents and their parents experience the decision making process of fertility preservation - how do transfeminine adolescents and their parents experienced postponing or temporarily discontinuing puberty suppression to undergo successful fertility preservation? Participants will be asked to use their medical data, answer a questionnaire or participate in a (online) interview.