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.
Identifying the outline of a Gross Tumour Volume (GTV) in lung cancer is an essential step in radiation treatment. Clinical research, such as radiomics and image-based prognostication, requires the GTV to be pre-defined on massive imaging datasets. The ARGOS community creates an open-source and vendor-agnostic federated learning infrastructure that makes it possible to train a deep learning neural network to automatically segment Lung Cancer GTV on computed tomography images. To reduce risks associated with sharing of patient data, we have used a data-secure Federated Learning paradigm known as the "Personal Health Train" that has been jointly developed by MAASTRO Clinic and the Dutch Comprehensive Cancer Organization (IKNL). The successful completion of this project will deliver a highly scalable and readily-reusable framework where multiple clinics anywhere in the world - large or small - can equitably collaborate and solve complex clinical problems with the help of artificial intelligence and massive amounts of data, while reducing the barriers associated with moving sensitive patient data across borders.
The primary objective of the study is to evaluate the effect of setrusumab vs intravenous bisphosphonates (IV-BP) on reduction in fracture rate, including morphometric vertebral fractures in pediatric participants.
Non-specific protective effects resulting from the BCG vaccine appear to be paternally inheritable. Since the BCG vaccine is known to induce trained immunity, epigenetics might explain the fathers' contribution to the immune profile of their offspring. Epigenetic inheritance in mice has recently been demonstrated, but is not established in humans yet. By studying the DNA methylation profile of sperm cells after BCG vaccination, we aim to gain insight into the possibility of epigenetic inheritance in human males.
Progressive destruction of the lungs is the main cause of shortened life expectancy in people with cystic fibrosis (pwCF). Inflammation and respiratory infections play a key role in CF lung disease. Previous studies have shown that an increase in inflammatory markers predicts structural lung damage. Close monitoring of pwCF is crucial to adequately provide optimal care. Pulmonary management for pwCF involves treating infections and exacerbations and promoting exercise and mucociliary clearance to slow or prevent structural lung damage. To evaluate the treatment and incite timely interventions it is important for the pulmonary physician to be well-informed about the condition of the lungs. The main monitoring tools in regular CF care are lung function, sputum cultures, symptom reporting and more recently imaging by chest computed tomography (CT-scan) or magnetic resonance imaging (MRI). Strangely enough, there are currently no monitoring tools used in clinics to measure inflammation in the lung, although this is a main factor for progressive lung disease. New highly effective modulator therapy (HEMT) such as elexacaftor/tezacaftor/ivacaftor [ETI, Kaftrio®] is transforming CF treatment, vastly improving lung function and reducing exacerbations. Initial CFTR modulators like ivacaftor and lumacaftor/ivacaftor also improved lung function and reduced exacerbations, but studies showed that lung inflammation was still present. The long-term impact of ETI and its effect on inflammation is not yet known. Thus, monitoring pwCF on HEMT may be different from before, as lung damage seen on chest CT will be less apparent and lung function will improve considerably, therefore not being adequate markers for subtle changes in the lungs. Thus, the focus of monitoring in the era of highly effective CFTR modulators needs to change preferably focusing on measuring lung inflammation. An ideal monitoring tool for lung inflammation in pwCF should be non-invasive, efficient, and provide accurate and sensitive results. Currently, sputum and BAL are the most common methods for assessing inflammation, but BAL is invasive and sputum may not always be available. Exhaled breath analysis by the electronic nose (eNose) or gas chromatography-mass spectrometry (GC-MS) of volatile organic compounds (VOCs) shows promise as a non-invasive monitoring tool. Other promising markers and techniques are inflammatory markers in the blood (cytokines and micro-RNA (miRNA)) and urine. Thus, the objective of this project is to design novel, minimally invasive monitoring techniques capable of identifying lung inflammation in pwCF undergoing highly effective CFTR modulator therapy (ETI) compared to those not using CFTR modulators. The efficacy of these innovative techniques will be evaluated and verified against inflammatory markers in sputum, spirometry, and validated symptom and quality of life scores.
The goal of this prospective longitudinal observational cohort study is to determine the nutritional intake, nutritional status, and physical activity level in people who have undergone a major dysvascular lower limb amputation (LLA) at different moments post-LLA (during hospital admission several days post-LLA, and at 5 weeks, 6 months, and 9 months post-LLA). The main questions this study aims to answer are: - What is the nutritional intake, nutritional status, and physical activity level at different moments post-LLA? - What is the association between nutritional intake and physical activity level, and nutritional status? - What is the association between nutritional intake, nutritional status and physical activity level and clinical outcomes (mortality, wound healing, quality of life, physical functioning)?
Impaired brain vascular function precedes the development of reduced cognitive performance, while brain insulin-resistance is also associated with cognitive decline. Peanut consumption has already been shown to beneficially affect cognitive performance. However, underlying mechanisms have not yet been established, while well-controlled trials on longer-term effects of peanuts on cognitive performance are highly needed. The hypothesis is that longer-term peanut consumption has beneficial effects on (regional) cerebral blood flow responses (primary outcome), which may relate to an improved cognitive performance (secondary outcome) in older men and women. Important objectives are to investigate in older adults the effect of 16-week peanut consumption on (i) brain vascular function in cognitive-control brain areas, and (ii) brain insulin-sensitivity. We will also focus on changes in cognitive performance as assessed with a neuropsychological test battery (secondary objective). Cerebral blood flow responses before (brain vascular function) and after the administration of intranasal insulin (brain insulin sensitivity) will be non-invasively quantified by the non-invasive gold standard magnetic resonance imaging (MRI)-perfusion method Arterial Spin Labeling (ASL).
The coprimary objectives of the study are to: - evaluate the efficacy of rocatinlimab in combination with topical corticosteroid and/or topical calcineurin inhibitor (TCS/TCI), compared with placebo in combination with TCS/TCI at Week 24, assessed using Validated Investigator's Global Assessment for Atopic Dermatitis (vIGA-AD™). - evaluate the efficacy of rocatinlimab, in combination with TCS/TCI, compared with placebo in combination with TCS/TCI at Week 24, assessed using Eczema Area and Severity Index (EASI).
The investigators want to investigate the reliability (variability) of a new device, that should be able to measure lower leg compartment pressure non-invasively. Therefore the tool is used under different circumstances. The introduced differences in circumstances are: - Measurements at several time points - Measurements using different anatomical landmarks - Measurements by different researchers - Measurements in rest and after exercise This study's results are important to create a reliable measurement tools for patients with lower leg symptoms. In this way the diagnosis can be improved and as well the treatments given to the patients. It is expected that the variability of the device will be low compared to current techniques.
The MRI scan is one of the most important tools for diagnosing multiple sclerosis (MS) and for monitoring disease progression and medication effects. Increasingly strong MRI magnets (higher field strength) enable us to see abnormalities in the brain in greater detail. On the other hand, it poses challenges because these higher field strength MRIs are more sensitive to disturbances, for example due to motion, including physiological motion such as breathing and swallowing. In current practice, field strengths of up to 3 Tesla are common. The aim of this study is to compare scanning at field strengths of 3 Tesla in 10 MS patients at two different moments (baseline and 6 months) with scanning at field strengths that are higher, namely 7 and 9.4 Tesla, in order to identify the advantages and disadvantages. With the further development of this technique, the investigators may be able to make a better diagnosis in the future and detect subtle changes in the course of the disease more quickly in order to optimize treatments.
This is a multicentre retrospective and prospective cohort study with the goal to develop a well-characterised multimodal image database of eyes with intermediate AMD with and without early atrophy. The main objectives are: 1. Develop a collaborative well-characterised database on intermediate AMD with or without early atrophy. 2. Grading of these images to explore imaging markers of progression. 3. Develop predictive models as a secondary analysis of our dataset. This study will recruit around 1.000 eyes in 6 months. All consenting patients who have had at least 3 clinic visits with multimodal imaging done at least at 6 months interval between 2 visits and meet the inclusion and exclusion criteria will be included in the study for retrospective data collection. Those with one visit remaining to complete 2 years, images will be acquired prospectively. In addition to the images, routine demographic data (age and sex) and available visual acuity (VA) (BCVA if possible, VA with Pinhole or VA with patient's glasses) will be collected. Multimodal imaging includes mandated macular OCT with or without enhanced depth imaging and infrared imaging. Fundus autofluorescence (AF) and multicolor imaging are optional. All imaging must be done on Heidelberg Spectralis system.