Clinical trials

Participation in this study lasts approximately two weeks and includes three on-site study visits: a screening visit (approximately 2 hours), a study drug administration visit (approximately 4 hours), and a follow-up visit approximately one week later (approximately 2 hours). If participants decide to take part in the study and meet the inclusion and exclusion criteria, they will be randomly assigned to one of two groups: an experimental group or a control group. Participants will not be informed of your group assignment. Participants in the experimental group will receive the investigational substance 5-MeO-DMT at a dose of 0.2, 0.4, 0.6, or 0.8 mg/min for a total infusion duration of 30 min. Participants in the control group will receive a placebo that is indistinguishable in appearance from the investigational substance. Following substance administration, participants will be repeatedly asked to describe their subjective experiences. Blood pressure and heart rate will be monitored regularly, and blood samples will be collected via an intravenous catheter.

This observational study includes patients undergoing major non-cardiac surgery, and screens them for the occurrence of perioperative myocardial injuries (PMI). Incidence, patient characteristics, pathophysiology, potential prevention and therapy strategies and 1-year outcomes of PMI will be described.

The goal of this Phase 2 clinical trial is to learn if adding ruxolitinib to pembrolizumab may improve treatment outcomes in patients with head and neck squamous cell carcinoma (HNSCC) who have increased levels of systemic inflammation before treatment, as measured by the neutrophil-to-lymphocyte ratio (NLR). The investigational drug will be used outside of its approved indication (off-label use) based on its known pharmacologic mechanism and prior clinical experience in patients with myeloproliferative neoplasms and graft-versus-host disease. The main questions it aims to answer are: Is treatment with ruxolitinib in combination with pembrolizumab safe and well tolerated? Can the addition of ruxolitinib improve treatment outcomes compared with historical data? How does ruxolitinib affect the immune system and inflammation when given together with pembrolizumab? How does the combination treatment affect patients' quality of life? Participants will: Receive treatment with pembrolizumab and intermittent ruxolitinib. Undergo blood tests to assess immune responses and inflammation. Attend study visits for safety assessments and treatment monitoring. Complete quality-of-life questionnaires, where applicable. The results of this study will help researchers better understand how inflammation and the body's immune system affect treatment outcomes in people with head and neck cancer. The findings may also help improve the design of future studies investigating new treatment combinations for this disease.

This retrospective cohort study is to identify triggers of heart failure (HF) development and drivers of HF progression as well as the underlying cardiac disease (phenotype) to identify patients at risk and predict the clinical course of the disease. Data of patients who were hospitalized during the years 2010-2023 with acute coronary syndrome (ACS) and/ or with acute heart failure (AHF) will be collected and analyzed. In a subgroup cohort efficacy and safety of digoxin in patients with acute heart failure triggered by tachyarrhythmia will be evaluated.

This cohort study is divided into two parts: Part A: Registry Cohort All patients with non-metastatic, MMRd/MSI-H colorectal cancers (and other gastrointestinal cancers for exploratory analysis) who have signed the general research consent will be included in a prospective registry. This includes patients who undergo primary surgical resection (+/- neoadjuvant/adjuvant therapy) or following immunotherapy, regardless of response. Part A is a multicenter observational registry with both prospective and retrospective enrolment. Prospective enrolment includes eligible patients entered into the registry after activation of the study at the respective participating site. Retrospective enrolment includes eligible patients diagnosed on or after 1 January 2024 whose clinical data were generated prior to registry activation. Both prospectively and retrospectively enrolled patients contribute to the registry analyses. Part B: Active Surveillance Cohort (Surveillance Study) A subset of patients from Part A who achieve a complete or near-complete response to ICI therapy, wish to avoid surgery, and are deemed appropriate for non-operative management by a multidisciplinary tumor board are offered inclusion in a phase II surveillance study (Part B). Patients enrolled in Part B will be analysed for the primary endpoint.

This registry aims to learn more about the best ways to treat coronary artery disease. Information from routine medical care will be collected to compare different treatment approaches, including drug-eluting stents, drug-coated balloons (DCB), and bioresorbable scaffolds (BRS), which gradually dissolve over time. The registry will include people with coronary artery disease who receive an intervention (percutaneous coronary intervention), including those undergoing more complex procedures. By studying treatment outcomes over time, the Registry aims to better understand which therapies work best for different groups of patients and to improve future care for people with coronary artery disease.

The purpose of this investigator-initiated study is to assess the efficacy of treating patellofemoral osteoarthritis with an Advanced Therapy Medicinal Product (ATMP), autologous nasal chondrocyte tissue engineered cartilage (N-TEC), in comparison with a standard therapy using platelet rich plasma injections. The engineered cartilage graft is obtained by culturing expanded autologous nasal chondrocytes within a collagen type I/III membrane.

The aim of this study is to assess the knowledge, attitudes, and practices of ICU physicians in Switzerland regarding the use of ultrasound for fluid management and evaluation of venous congestion.

The aim of the VeMic study is to explore if venous congestion is linked with microcirculatory impairment in elective cardiac surgery patients in the postoperative ICU stay.

The aim of the present study is to assess whether cumulative endogenous neurophysin I secretion over one month differs between premenopausal and postmenopausal women. Using repeated measurements of neurophysin-I (NP-I, equimolar surrogate marker of oxytocin) across defined physiological time points, this study investigates oxytocin system regulation under cyclic and non-cyclic hormonal conditions. The primary hypothesis is that cumulative NP-I release, expressed as the area under the curve (AUC) is lower in the postmenopausal group compared to the premenopausal group.

This clinical study will evaluate the safety and tolerability of an IDO-1 inhibitor in patients receiving a kidney transplant. The study includes individuals who have not previously been infected with Epstein-Barr virus (EBV) and who receive a kidney from a donor with prior EBV infection. Participants will receive the IDO-1 inhibitor or placebo in addition to standard medical care and will be monitored for side effects and other safety-related outcomes throughout the study.

The investigators investigate the efficacy of non-opioid analgesics compared to placebo together with opioid therapy for cancer pain management.

The investigators aim to characterize patients presenting with a severe ventricular tachycardia (VT) and premature ventricular complex (PVC)-ablation-related complication including patient characteristics, procedural details and subsequent management of the complication by gathering existing patient-level data.

This proof-of-concept study aims to evaluate the feasibility, acceptability, and potential benefits of a novel multimodal approach: the micro-choice-based intervention.

Prostate cancer remains one of the leading causes of cancer-related morbidity and mortality among men. While PSA-based screening has been associated with reduced prostate cancer mortality, it also results in substantial overdiagnosis and overtreatment of clinically insignificant disease. Biparametric magnetic resonance imaging (bpMRI) has emerged as a promising imaging modality to improve the detection of clinically significant prostate cancer while reducing unnecessary biopsies. In this prospective follow-up study, men who previously participated in prostate cancer screening and had no evidence of malignancy at baseline will be invited to undergo repeat screening approximately five years later. The study aims to evaluate the longitudinal performance of repeat screening using PSA and MRI, determine the incidence of newly detected clinically significant prostate cancer after an initial negative screening, and assess changes in imaging and clinical findings over time. The results will provide evidence on the value and optimal interval of repeat prostate cancer screening in men with an initially negative evaluation.

This in-vivo study investigates early (48h), mature (2 weeks) and long-term (3 months) biofilm formation and composition on temporary push-on cones (exchangeable conical rings) made of noble-alloy-based materials (Pagalinor, PA) in comparison to Titanium-6Aluminum-7Niobium alloy (TAN) presently used in the transmucosal portion of dental implant abutments.

The study aims to assess the feasibility and acceptability of the implementation of a routine digital psychosocial screening combined with a psycho-oncological Navigation Call for cancer survivors after completion of primary treatment with the goal to improve identification of psychosocial needs and facilitate access to supportive care.

The PHOENIX study aims to investigate whether oral estradiol valerate (EV) and ethinylestradiol (EE) can stimulate oxytocin (OXT) and neurophysin-1 (NP-1) release in humans. The goal is to assess their potential as a safe diagnostic stimulation test for oxytocin deficiency, particularly in patients with arginine vasopressin (AVP) deficiency.

This trial is to investigate if in patients with clinically node positive breast cancer undergoing upfront surgery, treatment with TAS and ART is superior to ALND in terms of arm-related Quality of Life (QoL) and occurrence of lymphedema two years after randomization.

This study aims to generate evidence on patient and dermatologist perspectives regarding two total body photography systems. Patient and clinician preferences represent key factors in healthcare decision-making. The investigation will also provide data on the time efficiency of each system in a real-world setting.

The study will compare two ablation strategies in patients with paroxysmal or persistent atrial fibrillation undergoing repeat ablation using pulsed-field ablation: redo pulmonary vein isolation only versus redo pulmonary vein isolation with added posterior wall ablation.

The goal of this clinical trial is to compare two strategies for closing the main artery access site in adult patients undergoing transcatheter aortic valve implantation (TAVI) through a blood vessel in the leg (transfemoral access). The main questions it aims to answer are: Does using a single suture device lower the rate of access-related vascular complications compared to using a hybrid combination of a suture device and a plug-based closure device? How do the two closure strategies compare regarding bleeding complications, procedure time, and time to complete vessel sealing? Researchers will compare a single-suture closure strategy to a hybrid closure strategy (one suture plus one plug-based device) to see if using a single suture reduces vessel-related complications and improves patient safety after TAVI. Participants will: Undergo standard pre-procedure screening and TAVI via the main artery in the leg as part of routine medical care. Receive an initial single-suture placement before the large TAVI delivery system is inserted. Be evaluated after sheath removal for initial bleeding control; qualifying participants will then be randomly assigned (1:1) to either receive no additional device (single suture group) or receive a plug-based closure device (hybrid group). Have their heart and access site monitored during hospitalization, including laboratory checks and imaging prior to discharge. Complete a 72-hour safety and complication evaluation.

This study aims to assess the influence of sensory stimulation on diet-induced energy expenditure by way of a clinical cross-over trial in 24 healthy participants either receiving a meal bolus with (orally) and without sensory stimulation (nasogastric-tube).

Heart failure (HF) occurs when the heart is no longer able to pump blood effectively throughout the body. This leads to symptoms that gradually worsen over time and are often mistaken for normal signs of aging. Because of its insidious onset, early detection is challenging. Both patients and healthcare professionals are often insufficiently aware of the early signs and symptoms of HF, resulting in delayed diagnosis. Consequently, timely initiation of treatments that could slow disease progression, improve quality of life, and reduce hospitalizations is often missed. Although a simple blood test measuring NT-proBNP levels can facilitate the early diagnosis of HF, it is not routinely used in clinical practice. The aim of this study is to evaluate whether a combined strategy for the early diagnosis and treatment of HF can reduce hospitalizations. This strategy includes: 1. increasing awareness of HF among patients and physicians, 2. using NT-proBNP testing for the early detection of HF in high-risk patients, and 3. promptly initiating guideline-directed HF treatment when the diagnosis is confirmed. The researchers will assess whether this strategy effectively reduces hospitalizations due to acute heart failure over an 18-month follow-up period.

This study aims to develop a standardized tool to assess intraoperative pain during cesarean delivery under neuroaxial anesthesia. The tool will draw on existing scientific literature, expert clinical opinion and the experiences of patients who have recently undergone caesarean delivery. Experts from multiple disciplines will participate in a structured consensus process (Delphi process) to identify and refine key assessment items. Patient interviews will be conducted to ensure that the tool reflects patient priorities and experiences.