There are about 9403 clinical studies being (or have been) conducted in Switzerland. 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 general aim of the project is the identification of dynamic molecular markers that can help the early and real time prediction of sustained benefit or no benefit from ibrutinib treatment in CLL harboring TP53 mutations. Specific aims of the project include: 1) Assess whether clearance of TP53 mutated clones translates into a predictive biomarker of long term benefit from ibrutinib treatment in CLL. 2) Assess whether plasma cell free DNA represents a sensitive tool that can early and dynamically inform on the development of ibrutinib resistant mutations in CLL.
Thoracolumbar (TL) burst fractures in neurologically intact patients account for approximately 45% of all TL spine injuries. Despite being common fractures, there is significant variability in treatment recommendations encompassing surgery and non-surgical treatment options. The controversy regarding optimal treatment for these injuries is fueled by several studies which suggest a potential benefit to surgical treatment in the realm of patient satisfaction, and the overall socio-economic burden of treatment while other studies demonstrate improved outcomes and lower morbidity with non-surgical treatment. This study aims to perform a prospective cohort analysis investigating the clinical outcome of various treatment alternatives for patients with A3/A4 fractures in the thoracolumbar region. A cost-effectiveness analysis will also be performed to identify costs and benefits of each treatment option. More specifically a sub-group analysis will be performed for this group of patients, which have equipoise in regards to patients treatment, as decided by a blinded review panel.
Goal of this study is to evaluate the accuracy of 3D computer-planned fracture fixation with patient-specific instruments for clavicle, upper extremity, lower extremity and pelvis fractures compared with the standard procedure of fracture fixation.
Neurocognitive Disorder (NCD) affects over 116'000 people in Switzerland and is frequently unrecognized and underdiagnosed. Because missed and delayed diagnosis are associated with an increased burden of disease health Service Research has prompted a discussion about diagnostic guidelines and screening programs. Some argue that screening for NCD in primary care is the optimal strategy to increase recognition rates; others consider test protocols implemented into hospital admission assessments as more justified. There is no distinct recommendation due to a lack of empirical data on the benefits and harms of cognitive testing yet. This trial strives to fill this gap and provide information about the benefits, harms and the economic case of routine cognitive testing for neurocognitive disorder in high risk elective inpatients, in Switzerland. The investigators hypothesize that, cognitive tested patients, compared with patients not cognitive tested, will have higher health-related quality of life at 12months; and lower medical health care costs at 18months.
Sugar alcohols such as xylitol and erythritol are increasingly popular as sugar substitutes in the food industry and are also recommended to diabetic patients. Both substances are already in use in the food industry and are freely available. Since the 1970s, beneficial effects on oral health could be demonstrated as oral bacteria were influenced positively. Animal studies showed an increase in gut Clostridium perfringens after xylitol intake; certainly a non-desirable effect. However, studies on effects of erythritol and xylitol on the human gut microbiota are lacking so far. In this trial, investigators aim to examine whether gut microbiota and glucose tolerance can be influenced by polyol intake in a non-diabetic but obese cohort.
With this study the investigators investigate the effects of amino acids (tryptophan, leucin) and sugar alcohols (xylitol, erythritol) on satiety mechanisms and brain activation.
Deep brain stimulation (DBS) is an established treatment for advanced complicated Parkinson's disease (PD). Several controlled randomized studies have given proof of an advantage for operated patients as compared to medically treated patients in terms of motor outcome, activities of daily living and health status. However these studies have addressed mostly stimulation of the subthalamic nucleus (STN). GPi stimulation has not been compared to best medical treatment (BMT) in a prospective randomized controlled trial in patients with complicated PD who are not good candidates for STN stimulation. The investigators aim assessing GPi-DBS in patients with PD who have contraindications for STN-DBS.
The primary purpose of this study is to compare the efficacy of two treatment-as-usual (TAU) conditions: TAU with integration of emotion focused components (EFT) and TAU with focus on self-regulation (SR). Especially the long-term efficacy is evaluated with a focus on differential effects. Moreover, the mechanisms of change of both conditions are investigated.
Orofacial impairment following stroke frequently involves a reduced chewing performance and dysphagia. This study investigated the sensitivity of oral tissues following stroke and its potential impact on chewing efficiency. The following two Null-hypotheses (H0) were tested: i. Post-stroke patients do not show a reduced intra-oral sensitivity compared to a healthy controls. ii. Intra-oral sensitivity is not correlated to chewing efficiency.
High dietary phosphate intake in the general population is associated with a higher risk for developing kidney disease and cardiovascular disease with an increased overall mortality. Whereas the effects of high phosphate intake on general health become clearer, almost nothing is known about underlying mechanisms. More recently, the investigators and others found in animal models that FGF23 stimulates the renal NaCl cotransporter NCC, the target of thiazide diuretics, and that increased NCC activity may increase blood pressure. The investigators could also show that increasing dietary phosphate intake in mice, increases FGF23 and NCC activity within 3 days. Thus, the objective of this single-centre observational cross-over study including 20-45 year old healthy male probands is to elucidate the role of dietary phosphate on blood pressure regulation and renal handling of sodium chloride in healthy subjects. Further the impact of dietary phosphate intake on the regulation of phosphaturic hormones and other factors regulation blood pressure will be investigated. In addition, the investigators will examine whether phosphate intake modulates gut microbiome composition. The primary outcome in this study is the change in blood pressure in healthy subjects on low-phosphate diet compared to healthy subjects on high-phosphate diet. In addition, to assess changes in NCC activity as the main mechanism of phosphate-sensitive blood pressure regulation, renal sodium chloride excretion after administration of hydrochlorothiazide will be measured. The secondary outcomes of this study are: changes in renal phosphate, calcium and potassium excretion, changes in phosphate regulation hormones such as 25-OH-Vit. D, 1,25-(OH)2-Vit. D, PTH, FGF23, dopamine in plasma and urine, changes in plasma and urinary aldosterone levels, changes in sodium/chloride-cotransporter NCC and NaPi-IIa assessed from urinary exosomes, and changes in stool phosphate excretion and gut microbiome composition.