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 effect of administration of vitamin D is tested on the long-term control of blood sugar (as measured by HbA1-c levels in blood) and mean blood pressure (as measured by 24 hour blood pressure profiles)in patients with stable type 2 diabetes mellitus
It is known that small dense LDL particles are associated with an increased cardiovascular risk. LDL particles can be separated by gradient gel electrophoresis (GGE) according to their size. The risk to suffer from coronary heart disease is 3-7 fold elevated in subjects with small dense LDL particles compared to subjects with large LDL particles. This study aims at evaluating the predictive value of small dense LDL particles in patients with prediabetes and type 2 diabetes mellitus concerning future changes in intima media thickness, flow-mediated dilation and other risk factors of atherosclerosis (e.g. insulin resistance). 60 patients with prediabetes or type 2 diabetes will be recruited for the study. Assessment will include medical history (risk factors), physical examination (blood pressure, BMI, waist-to-hip ratio), collection of serum, oral glucose tolerance test, measurement of intima media thickness and endothelial dysfunction by ultrasound. All measurements will be repeated after 2 years. Data will be analysed to assess whether the amount of small dense LDL particles can predict further structural and functional changes of the cardiovascular system or changes in the severity of the disease (insulin resistance).
The purpose of this study is to compare two different surgical techniques for implementation of totally implantable central venous access ports. Ultrasound-guided suclavian vein puncture is compared to cephalic vein dissection.
A Dose-Finding Study of Resiquimod Evaluating Safety and Efficacy in Patients with Multiple Actinic Keratosis Lesions
While gold standard in the treatment of symptomatic gall stones is laparoscopic cholecystectomy with instruments introduced through multiple abdominal wall incisions, transvaginal access to the peritoneal cavity offers an alternative avoiding injury of the abdominal wall. Transvaginal hybrid-NOTES cholecystectomy has been demonstrated effective and safe. However it has not been demonstrated up-to-date if intraoperative cholangiography is feasible during such procedure. This observational case series describes success and technical feasibility of intraoperative cholangiography during transvaginal cholecystectomy. The investigators hypothesis is that cholangiography is feasible equal to conventional laparoscopic cholecystectomy.
Facial fractures make up a significant proportion of injuries in trauma patients. Treatment of these fractures often results in standard surgical interventions. While up to the early 1980's perioperative antibiotic prophylaxis in maxillofacial surgery was controversial, its efficacy is well accepted today. Chole and his team could show that the administration of antibiotics one hour preoperatively and eight hours after the intervention reduces the incidence of infectious complications in facial fractures from 42,2% to 8.9%. However there is still no consensus about the duration of the postoperative administration. In literature postoperative prophylaxis in facial fractures varies from single-shot 6-7 up to a duration of 7 and even ten days postoperatively 8-10. The use of antibiotics can be associated with allergic or toxic reactions, adverse effects, drug interactions and increasing bacterial resistance. In addition some authors assume that a prolonged administration of antibiotics might increase the risk of infectious complications via superinfection. On the other hand a short term or single shot administration might not be enough to prevent the onset of an postoperative infection. Up to date there is no standard to support the administration of antibiotics after surgical repair of a facial fracture. The purpose of this prospective, randomized double-blinded trial is to investigate the utility of antibiotics administered in the postoperative period after surgical revision of facial fractures. Hypothesis: a short-term antibiotic prophylaxis of 1 day postoperatively is equally effective as a long-term administration of 5 days in facial fractures.
International GBS Outcome Study (IGOS) is a study conducted by the members of the Inflammatory Neuropathy Consortium (INC) and Peripheral Nerve Society (PNS) on disease course and outcome in Guillain-Barré syndrome (GBS). The IGOS aims to identify clinical and biological determinants and predictors of disease course and outcome in individual patients with Guillain-Barré syndrome, as early as possible after onset of disease.
Specifically designed enteral formulations may improve the gastrointestinal tolerance during early enteral nutrition in the critically ill patient. This pilot trial will permit testing the design of the full-scale study providing valuable data on the expected effect of the formulation, the variability, thus helping to better estimate the required sample size.
This randomized, placebo-controlled, double-blinded trial investigates the effect of a 6 week intake of PADMA 28 on the endothelial function, biomarkers and the autonomic nervous systems in patients with coronary artery disease. The investigators hypothesize that PADMA 28 has a beneficial effect on endothelial function, arterial stiffness, the autonomic nervous systen and the blood inflammatory markers in patients with coronary artery disease compared to placebo treatment.
This is a pilot dose-finding study, which is performed with a randomized, double-blind, 3-armed, unbalanced, cross-over study design. Three of four different doses of L-lysine Monohydrate (A = 0.5 g, B = 1.2 g, C = 3.0 g and D = 7.5 g) will be applied in a randomized sequence on three different study days in six healthy volunteers. Each study day involves the repeated measurement of gastric content volume, gastric secretion volume and intestinal fluid volume using MRI before and after intragastric infusion of L-lysine Monohydrate test meals. Additionally, symptoms for hunger, fullness, nausea, bloating, abdominal cramps and urge to defecate will be recorded using a scale from 0-10. In parallel, samples of gastric juice to measure intragastric pH and pepsin concentration, samples of venous blood to assess blood pH and haematocrit as well as L-lysine, Serotonin, chloride bicarbonate and albumin plasma concentration and samples of arterialized blood from ear lobe to measure glucose blood concentration will be collected