Found 65,447 clinical trials
Collection of Blood for Multiple Collaborative Studies
This study seeks to confidentially collect blood from HIV-positive individuals and HIV-negative controls to provide basic scientists with specimens for collaborative studies.
The EpiGASTRIC/EDGAR Project: New Strategies for the Early Detection and Prevention of Gastric Cancer
This study is a multicenter, prospective cohort study, which are planned to enroll at least 600 patients who diagnosed the primary gastric cancer (GC); around 50 patients with premalignant gastric lesions (PGLs) and early gastric neoplasias (EGC) treated by endoscopy resection; and no less than 600 healthy normal cohort participants, …
Novel Biochemical and Molecular Determinants for Soft Tissue Sarcoma
The purpose of this study is to study normal and sarcoma cells. To study these cells we need to have human tissue. You will be having or have already had a procedure to remove tissue. We would like to use some of this tissue. We will use it for laboratory …
Keeping it LITE: Exploring HIV Risk in Vulnerable Youth With Limited Interaction and Digital Health Intervention
Despite advances in HIV diagnostics, care and prevention strategies, infection rates among adolescent and young adult sexual and gender minorities (SGM) continue to rise in the United States (US). There is an urgent need to describe the epidemiology and trajectories of HIV acquisition in this population and to offer age …
Trial-Ready Cohort-Down Syndrome (TRC-DS)
The purpose of the Trial-Ready Cohort - Down Syndrome (TRC-DS) is to enroll 120 healthy adults with Down syndrome (DS), between the ages of 25-55, into a trial ready cohort (TRC), and up to 450 participants in total including co-enrolled in the Alzheimer Biomarkers Consortium - Down Syndrome (ABC-DS) study. …
French National Registry of Bone Marrow Failures
This is a unique clinical and biological database that collects standardized clinical information during the management of all patients with bone marrow failure syndromes (BMF) in France (multicenter registry), from diagnosis and throughout follow-up during the natural history of the disease, treated or not. In parallel, biological samples (blood and/or …
Performance of Inherited Risk Assessment for Predicting Prostate Cancer From Prostate Biopsy
Condition: Prostate cancer Intervention: Biopsy and inherited risk assessment
Impact of Conventional Treatments and Clinical Variables on Thyroid Cancer
DTC has a generally favorable prognosis. The possibility to discriminate between patients with aggressive tumors and those with a more indolent behavior may reduce the need for unnecessary treatments. Aim of this observational study is to evaluate how anamnestic, clinical, and histopathological variables may influence the outcome of the enrolled …
Belgian Registry on Coronary Function Testing
The goal of this prospective, multicenter registy is to describe the 'real-world' use of coronary function tests, which may consist of bolus thermodilution measurements of coronary microvascular function and/or invasive vasoreactivity tests with acetylcholine, in the current Belgian routine practice. The main questions it aims to answer are: how frequent …
A Multicentre Study on Features of the Gut Microbiota of Patients With Critical Chronic Diseases in China
The human gut microbiome has been associated with many health factors but variability between studies limits the exploration of effects between them. This study aims to systematically characterize the gut microbiota of various critical chronic diseases, compare the similarities and differences of the microbiome signatures linked to different regions and …
