Clinical trials

Pulmonary hypertension (PH) is a frequent and clinically significant complication in patients with end-stage kidney disease (ESKD) undergoing maintenance hemodialysis (HD). However, PH assessment in this population is often confounded by volume overload, leading to potential overestimation and misclassification. This prospective, multicenter observational study aims to evaluate the prevalence, phenotype, and predictors of PH in HD patients under standardized euvolemic conditions. A structured pretrial phase including volume assessment and correction will be performed prior to echocardiographic evaluation, which will be conducted after confirmation of euvolemia, post-hemodialysis or on the following day. In participants with echocardiographic findings suggestive of PH, right heart catheterization may be performed when clinically indicated and after obtaining specific informed consent. The study integrates clinical, biological, dialysis-related, and echocardiographic data to provide a comprehensive characterization of PH in a well-defined ESKD population.

This study aims to evaluate the burden and phenotypic spectrum of periodontal disease in patients with rare kidney disorders (such as Alport syndrome, Fabry disease, and tuberous sclerosis complex) and systemic lupus erythematosus (SLE), compared with chronic kidney disease (CKD) controls and population controls. This is a cross-sectional, case-control observational study. Participants will undergo a single structured evaluation including a full-mouth periodontal examination, a clinical questionnaire, and collection of relevant clinical and nephrological data. The primary objective is to compare the prevalence of periodontitis across study groups. Secondary objectives include characterization of periodontal disease severity, prevalence of gingivitis and xerostomia, and identification of disease-specific oral phenotypes. Exploratory analyses will assess associations between periodontal disease and clinical variables such as kidney function, proteinuria, and immunosuppressive exposure.