Active clinical trials for "Kidney Diseases"

The goal of this observational clinical trial is to compare assessment reagents with clinical diagnostic criteria in patients with membranous nephropathy. The main questions it aims to answer are: Evaluating the sensitivity and specificity of the test reagent in the diagnosis of membranous nephropathy. Evaluating whether the clinical diagnostic performance of the test reagent meets the requirements for auxiliary diagnosis of membranous nephropathy. Participants will provide approximately 4ml of blood. Researchers will compare the levels of anti-PLA2RIgG4 in patients with membranous nephropathy and patients with other renal diseases,to see if there is a significant difference.

The transition from chronic kidney disease (CKD) to end-stage renal disease ESRD is a vulnerable and challenging period of time for patients and providers. Suboptimal control of blood pressure is known to be common in patients with the advanced stages of CKD, and may contribute to their elevated risk of progression to ESRD, cardiovascular morbidity, and mortality. This proposal is a pilot randomized controlled trial designed to test whether intensive blood pressure lowering is feasible and safe in patients with advanced CKD as they transition to ESRD.

The purpose of this study is to investigate the effect of beginning a renal replacement therapy on fluid overload and its consequence on the severity of obstructive sleep apnea, in patients with end stage chronic kidney disease. It aims further to investigate the relationship between overhydration, nocturnal rostral fluid shift and the severity of sleep apnea.

The risk of cardiovascular disease (CVD) is significantly elevated in patients with chronic kidney disease (CKD). Notably, women with CKD commonly experience menstrual disturbances induced by CKD, which may contribute to impaired vascular function and elevated CVD risk. However, most of the literature in the field of nephrology focuses on male patients, and studies on women's vascular health are limited. Moreover, endogenous sex hormones, particularly estradiol, are well-documented to be cardioprotective in women without CKD; however, the role of sex hormones on vascular function in women with CKD remains unclear. The goals of the proposed project are: 1) to evaluate vasuclar function in pre- and post-menopausal women with CKD vs. age-matched healthy women; 2) to evaluate sex hormone concentrations and determine whether they associate with vascular function in the proposed cohort; and 3) to gain mechanistic insight on the association between sex hormones and vascular dysfunction in the proposed cohort.

Thrombotic microangiopathies (TMAs) are a diverse, rare but serious group of diseases. Progress has been made regarding the epidemiology of TMA (Bayer CJASN 2019). It has been shown that secondary TMAs account for 95% of cases, whereas primary TMAs (atypical hemolytic syndromes (HUS) and thrombotic thrombocytopenic purpura (TTP)) account for only about 5%. However, in many cases, the pathophysiology, optimal management and prognosis of TMA remains unclear and it has been shown that patients with TMA may have renal-limited TMA or renal and hematological TMA (ie. With (mechanical anemia, thrombocytopenia, elevated LDH, decreased haptoglobin, schistocytes). In most studies, kidney biopsies are not performed and the diagnostic workup is uncomplete. As this is a rare disease, only a multicenter approach (>20 centers) over a long period of time (>10 years), with adequate diagnostic workup including kidney biopsies can help us to answer these questions (investigators in the present are usually members of the CNR-MAT (a network of the TMA centers in France).

Chronic Kidney Disease Associated Pruritus (CKD-aP) represents a localized or a generalized skin itch, which is a common symptom occurring in end-stage renal disease and dialysis. The prevalence of CKD-aP in adults on dialysis varies between countries ranging between 20-42%. Swiss data on CKD-aP are unfortunately largely lacking, as Switzerland is so far not part of large registries, such as DOPPS. The aging population, the increase in diabetes (69% by 2030), the increase in hypertension (60% by 2025) and poly-morbidity will probably lead to a rise in the number of patients on dialysis and subsequent CKD-aP. CKD-aP is associated with sleep disturbances, compromised quality of life, emotional distress, and increased risks of hospitalization and death. Its management lacks approaches that are supported by strong evidence because its pathogenesis remains poorly understood and may be related to an increase in uremic toxins, skin inflammation. In this context, sweat composition deserves more attention. Aim of the study The aim of the study is to determine the prevalence of CKD-aP in the population on dialysis, the association between CKD-aP and different electrolytes, and the potential role of the composition of sweat in CKD-aP. Results will be used for building a CKD-aP symptom management program to improve the quality of care of patients on dialysis and will be incorporated in the nursing continuing education program.

The decision making in the Czech nephrology offices depends on the local common practice which is likely to be heterogenous. In other words, the same patient would be indicated to different therapy and regimen at different sites. To date, the practices and treatment paths have not been described. The aim of the present epidemiological research is to characterize the population of CKD patients at the point of treatment choice and to outline the motivation of nephrologist to initiate particular therapy.

The Duke ApoL1 Nephropathy Biorepository aims to address needs within non-diabetic kidney failure research by utilizing existing and, when necessary, developing new infrastructure to support the consent of patients and the collection of dedicated samples for ApoL1 Nephropathy biorepository. The mutations in ApoL1 gene that are strongly associated with kidney disease are only present in individuals of recent African ancestry (i.e., black people). Caucasians do not have these ApoL1 mutations nor the associated kidney disease. Therefore, majority of subjects recruited for this study will be self-identified African Americans, Afro-Caribbean and other black individual. Study subjects will include individuals with end stage kidney disease and those without any clinical evidence of kidney disease. Additionally, healthy black adults with no known history of kidney disease will be recruited as controls in this study because they are the only group that can fill this role.

Single centre, prospective pilot study examining the relevance to screen for Fabry disease in a cohort of patients who have undergone renal transplantation for nephropathy of indeterminate cause, vascular nephropathy, diabetic nephropathy or secondary focal segmental hyalinosis with no established cause.

Brain impairment is one of the common complications of end-stage renal disease (ESRD). The patients always present with various cerebrovascular diseases, cognitive impairment and sensorimotor abnormalities, with morbidity over 40%. However, the risk factors and the neural mechanisms of brain injury in ESRD is still unclear. Identifying the risk factors and finding objective and reliable biomarkers of brain impairment in the process of ESRD is an important clinical problem. At the same time, to find the neural mechanisms of brain damage in ESRD is a serious scientific problem. Neuroimaging techniques based on multi-modal magnetic resonance image (MRI) can detect the structural and functional brain abnormalities objectively and sensitively, especially for those without obvious clinical symptoms. Through the deep analysis of brain MRI data, it is helpful for studying the neural mechanisms of brain damage in ESRD in the perspective from brain science. In addition, the accumulation of uremic toxins is supposed to play an essential role in the brain impairment of ESRD. The metabolomics is a useful method in detecting the uremic toxins with different molecular weights. In this study, the investigators will collect the brain MRI, serum metabolomics and cognitive assessment data before the dialysis initiation, and then will make prospective longitudinal observation of changes of brain impairment during the dialysis. Thus, combining analysis of neuroimaging and metabolomics will provide more information for finding the risk factors and imaging diagnostic markers of brain impairment in ESRD. It will also helpful for explaining the underlying mechanisms of brain impairment in ESRD, providing an objective basis for clinical diagnosis and prediction of the prognosis.