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 primary objective is to evaluate the effect of a viscous and fermentable dietary fibre on ad libitum eating in morbidly obese patients before and 6 month after Roux-en-Y gastric bypass (RYGB) surgery. The secondary objectives are to study the effect of a viscous and fermentable dietary fibre on perceived appetite, the production of short chain fatty acids (SCFA), breath hydrogen (as a marker of large intestinal fermentation), the secretion of gastrointestinal (GI) satiation hormones and glycaemia in morbidly obese patients before and 6 month after RYGB surgery. The primary study outcome measure is macronutrient and food intake (grams and kcal eaten) at the ad libitum buffet meal as well as time to complete the meal. Secondary outcome measures are 1) Appetite ratings (validated visual analogue scales, VAS) including hunger, fullness, thirst, desire to eat, and amount of food desired to eat. 2) Plasma concentrations of SCFA (propionate, acetate, butyrate). 3) Breath hydrogen (as a marker of large intestinal fermentation) 4) Plasma concentrations of gastrointestinal hormones (ghrelin, cholecystokinin (CCK), glucagon-like peptide-1 (GLP-1), peptide YY (PYY) and potentially other, yet to be identified gut hormones). 4) Concentrations of plasma insulin and glucagon and blood glucose. Randomized, single-blinded cross-over trial in 24 morbidly obese human subjects undergoing RYGB (study A, n=12; study B, n=12). Study B also includes an additional pilot study in 6 morbidly obese patients before and 6 month after RYGB surgery. Thus, the total number of subjects including the pilot study is 30.
In this study, the investigators wanted to investigate the energy homeostasis and the steroid metabolism of 20 healthy, young and normal weight women aged between 16-35 years before and after a 48 hours fasting period. The following substrates and hormone concentrations representing the carbohydrate, fat and protein metabolism will be measured from plasma or urine before and after fasting: glucose, insulin, lactate, alpha-synucleine, free fatty acids, beta-hydroxybutyrate (ketone bodies), carnitine (surrogate for acetyl-CoA) and alanine (amino acids). In addition, the investigators will measure 67 steroid metabolites by GC/MS and Biokrates AbsolutIDQ Steroid Assay in all collected urines and blood samples. In the analysis of the data, the investigators will focus on correlations between biochemical parameters of the energy metabolism and parameters of the steroid metabolism, specifically the androgens. In addition, the steroid profiles obtained from healthy young women before and after fasting will be compared to steroid profiles of PCOS women in search for specific differences.
The differential diagnosis of central diabetes insipidus (cDI) is difficult and the current test with the highest diagnostic accuracy is copeptin measurement after hypertonic saline infusion (HIS). Although the HIS improved diagnostic accuracy compared to the standard water deprivation test used for decades before, it still comprises great discomfort for patients due to the rise in serum sodium levels above 149mmol/l and requires the presence of medical staff at all times to guarantee safety of the test. The arginine stimulation test is routinely used to stimulate growth hormone. Own data in 52 patients with polyuria / polydipsia syndrome showed that arginine infusion is a potent stimulator of the neurohypophysis and provides a new diagnostic tool in the differential diagnosis of cDI. Copeptin measurements upon arginine stimulation (CAS) discriminated patients with diabetes insipidus vs. patients with primary polydipsia with a high diagnostic accuracy of 94%. To validate these results and to compare them against the HIS a large multicenter trial is needed, where the diagnostic accuracy of the CAS is compared to the HIS.
This is a randomized, open label, multicenter phase III trial comparing the efficacy, safety, and tolerability of tisagenlecleucel to Standard Of Care in adult patients with aggressive B-cell Non-Hodgkin Lymphoma after failure of rituximab and anthracycline containing frontline immunochemotherapy.
The objective of this study is to assess the efficacy and safety of upadacitinib for the treatment of adolescent and adult participants with moderate to severe atopic dermatitis (AD) who are candidates for systemic therapy.
A proportion of prostate cancer (PCa) patients develop relapse following curative local treatment. Regional nodal recurrence is an emerging clinical situation since the introduction of new molecular imaging methods in the restaging of recurrent prostate cancer. More specifically, a subgroup of these patients is being diagnosed with a recurrence confined to the regional lymph nodes and limited in number (oligorecurrence) using choline or PSMA PET-CT. As there are no specific treatment recommendations for these type of patients, different treatment approaches are currently used, mostly focusing on local ablative treatments using radiotherapy or surgery. These treatments are coined metastasisdirected therapy (MDT). MDT in combination with or without temporary ADT could delay the subsequent risk of progression, and even cure limited regional nodal recurrences. Consequently, lifelong palliative ADT, with its toxicity and excess in non-cancer mortality might be postponed. The proposed trial randomizes patients with oligorecurrent nodal prostate cancer following primary PCa treatment to either metastasis-directed therapy (MDT) (salvage lymph node dissection, sLND or stereotactic body radiotherapy, SBRT) or MDT plus whole pelvis radiotherapy (WPRT: 45 Gy in 25 fractions).
The overall project includes three sub-studies. Sub-Study I aims to develop the content of a new cultural sensitive grief questionnaire (International Prolonged Grief Disorder Scale, IPGDS Killikelly and Maercker, 2018) through interviews and focus groups with key (expert) informants and bereaved participants from Japan, Switzerland and China. The content will be piloted in paper and mobile app format. Sub - Study II aims to validate the new paper and mobile questionnaire in 200 participants from each culture using a battery of questionnaires and psychometric assessment. Sub-Study III will explore the relationship between grief and the cultural expression or repression of emotion. This will involve a battery of questionnaires about emotional expression and a short idiographic interview task administered to Swiss, Japanese and Chinese bereaved participants in paper and online format.
The investigation will assess the brain activation connectivity patterns associated with hypnosis and possible hypnotic sub-states by means of functional magnetic resonance imaging (fMRI). For that purpose, 50 healthy participants highly familiar with hypnosis (according to the OMNI-method) will be recruited and tested.
The trial aims to evaluate the efficacy of Daromun neoadjuvant treatment followed by surgery and adjuvant therapy to improve in a statistically significant manner the recurrence-free survival (RFS) of Stage IIIB/C melanoma patients with respect to the standard of care (surgery and adjuvant therapy).
The objective of the study is to clinically assess the safety and performance of the Dura Sealant Patch as a means of reducing intra- as well as post-operative CSF leakage in patients undergoing elective cranial intradural surgery with a dural closure procedure.