Active clinical trials for "Kidney Diseases"

This investigation is a randomized, double-blinded, placebo-controlled clinical trial in adult diabetic Pima Indians with normal urinary albumin excretion (albumin-to-creatinine ration less than 30 mg/g) or microalbuminuria (albumin-to-creatinine ration = 30-299 mg/g) to test the hypothesis that blockade of the renin-angiotensin system with the angiotensin receptor blocker (ARB) losartan can prevent or further attenuate the development and progression of early diabetic nephropathy in subjects with type 2 diabetes mellitus who are receiving standard diabetes care. One hundred seventy subjects were recruited for the study, all of whom had type 2 diabetes for at least 5 years, serum creatinine concentrations less than 1.4 mg/dl, and no evidence of non-diabetic renal diseases. Ninety-two of the subjects had normal urinary albumin excretion at baseline and other 78 had microalbuminuria. Subjects in each albumin excretion group were randomized to treatment with either the angiotensin II receptor antagonist, losartan, or placebo. Measurements of glomerular filtration rate (GFR), renal plasma flow (RPF) and fractional clearances of albumin and IgG will be made initially, at one month, and at 12-month intervals from baseline thereafter. A kidney biopsy was performed after six years in 111 subjects. Morphometric analysis of renal biopsies was used to determine differences in glomerular structure between treatment groups.

The angiotensin converting enzyme inhibitor drugs are now standard therapy for patients with diabetic nephropathy. The hypothesis of this study is that adding a diuretic agent (furosemide) will decrease the urine protein, which is a sign of disease, more than an angiotensin converting enzyme inhibitor alone.

Oxidative stress and acute phase inflammation are now recognized to be highly prevalent in both the chronic kidney disease (CKD; pre-dialysis) and end stage renal disease (ESRD; on hemodialysis) populations, and several lines of evidence point to their contribution in the development of atherosclerosis. Biomarkers of the inflammatory state such as C-reactive protein (CRP) and interleukin-6 are robust predictors of cardiovascular events and death in these two populations. The uremic state is characterized by retention of oxidized solutes including reactive aldehyde groups and oxidized thiol groups. It has recently been demonstrated that initiation of maintenance hemodialysis does not improve biomarkers of oxidative stress or inflammation, suggesting that dialysis alone is inadequate to control the atherosclerotic uremic metabolic state. In this study we hypothesize that administration of antioxidant therapy will decrease biomarkers of acute phase inflammation and oxidative stress in patients with Stage III and IV CKD.

The purpose of this study is to prove the hypothesis that the progression of renal and cardiovascular disease is more efficiently prevented when the angiotensin II receptor blocker valsartan is added to conventional antihypertensive therapy.

The purpose of this study is to assess the benefits of a combined cardiac, kidney, and diabetes clinic versus multiple clinics. Hypothesis: Attendance at multiple clinics by one individual patient has multiple problems which may be overcome by the introduction of a combined care clinic.

The aim of this study is to investigate the role of immunosenescence in the HBV vaccination response in patients with renal insufficiency.

The MEDiaN study aims to examine the state of fuel metabolism in participants with diabetic nephropathy (DN) before and after the use of the sodium-glucose transport protein 2 inhibitor (SGLT-2i) empagliflozin. The goals of the MEDiaN study are to better understand the contribution of fuel metabolism to the development of DN, and to determine if changes to fuel metabolism can have a positive impact on this disease. The MEDiaN study is a single-center single-arm open-label intervention study to examine the effects of empagliflozin 10mg daily taken for 30 days on fuel oxidation patterns in participants with type 2 diabetes and DN.

In maintenance hemodialysis patients, regular administration of parenteral iron by addition of soluble ferric pyrophosphate (SFP) to the dialysate, when compared to conventional dialysate, is effective in preventing the development of iron deficiency, thereby maintaining hemoglobin level; is clinically safe and does not lead to oxidative stress or inflammation.

The aim of the present study is to study the expression of the various phosphate transporters in patients with normal or moderately impaired renal function or in patients on dialysis. In particular, the investigators want to clarify whether NaPi-IIb expression level decreases in CKD patients, which would render it a potentially inadequate pharmaceutical target in these patients.

The goals of this work will be to evaluate the preliminary efficacy of a comprehensive pre-dialysis education program on increased knowledge of conservative kidney management and advance care planning among patients with advanced CKD.