View clinical trials related to Renal Insufficiency.
Filter by:The purpose of this study is to assess the safety of lanthanum carbonate in patients undergoing dialysis who have received lanthanum carbonate in the previous studies and wish to continue treatment.
Determination of the concentration of uremic toxins of sepsis patients with or without acute kidney failure compared to the concentrations of uremic toxins of chronically uremic patients
This is an open-label, clinical pharmacology study to evaluate the safety and PK of MRA in patients with RA with Renal Impairment.
Heart disease and stroke, known as cardiovascular disease, are major causes of death in people with chronic kidney disease. Abnormalities of a metabolic pathway called the “L-arginine-nitric oxide” pathway are thought to be particularly important in these people, and previous research in animals has suggested that sodium (salt) affects part of this metabolic pathway. The purpose of our research is to study the effects of sodium intake on the “L-arginine-nitric oxide” pathway, and on blood vessel function, in patients with kidney disease.
High blood pressure (hypertension) affects up to 80% of all patients receiving haemodialysis for chronic kidney disease (CKD). High blood pressure is a major cause cardiovascular disease (i.e. strokes, heart attacks and heart failure) and, thereby, cardiovascular deaths in these patients. A significant cause of raised blood pressure in haemodialysis patients is thought to be due to retention of salt in the body. In healthy people the kidneys excrete salt but the kidneys of patients with CKD cannot do this, so salt has to be removed by dialysis. However dialysis cannot remove as much salt as is necessary, and so it accumulates. This fact has been recognized for many years, and health professionals caring for haemodialysis patients often stress the importance of restriction of dietary salt intake. However no research has looked in detail at the mechanisms by which salt raises blood pressure in haemodialysis patients. It is likely that salt directly affects thirst, causing patients to drink more and become overloaded with fluid. In addition, salt may have direct effects on the blood vessel wall, causing failure of adequate blood vessel relaxation. Both of these factors may raise blood pressure. We will conduct a carefully controlled crossover study looking at the effects of a modest reduction in salt intake on BP. During the course of the study, which will last eight weeks, patients will receive both a 5 gram per day and a 10 gram per day salt intake. We will look at how thirst, fluid intake, a number of markers of blood vessel function and blood pressure differ on these two salt intakes.
The investigators' primary research objective is: - To determine the safety of dalteparin prophylaxis, 5,000 IU once-daily, in Intensive Care Unit (ICU) patients based on: - the proportion of patients with trough anti-Xa > 0.40 IU/mL during dalteparin prophylaxis after 3 + 1 days, 10 + 1 days, and 17 + 1 days of dalteparin prophylaxis; - the risk of major bleeding during the treatment period. The investigators' secondary research objectives are: - To determine the pharmacokinetic properties of dalteparin prophylaxis in ICU patients with severe renal insufficiency; - To identify clinical and laboratory factors that predict an excessive anticoagulant effect (anti-Xa > 0.10 IU/mL); - To estimate the relationship between trough anti-Xa levels and bleeding. The DIRECT Pilot Study: Before embarking on a large trial of low molecular weight heparin (LMWH) versus standard unfractionated heparin (UFH), the DIRECT Study is needed to observe whether bioaccumulation of LMWH occurs in ICU patients with moderate to severe renal insufficiency, and to address potential problems with protocol implementation.
Contrast nephropathy (CN) remains a common complication of radiographic procedures and an important cause of hospital-acquired acute renal failure. Only hydration with saline is uniformly accepted and used in clinical practice as a cornerstone for the prevention of CN. But the optimal preventive strategy for CN is not known. Sodium bicarbonate might be even more effective than hydration with sodium chloride for prophylaxis of CN. Therefore the aim of the study is to evaluate the efficacy of two regimens of sodium bicarbonate compared with a prolonged infusion of sodium chloride in the prevention of CN. Primary endpoint: Decrease in glomerular filtration rate (GFR) within 48 hours.
Patients with end-stage renal failure have a markedly higher mortality because of cardiovascular events in comparison with the normal population. Disorders in the calcium metabolism, such as calcification of the vessel walls, occur very frequently. There are indications that calcium channel blockers are capable of lowering the cardiovascular mortality in patients with end-stage renal failure. It is intended to carry out a prospective, randomized, double-blind, placebo-controlled, multicenter study in order to find out if the calcium channel blocker amlodipine is able to reduce the mortality of patients with end-stage renal failure. The investigation will be carried out after suitable explanation and written informed consent in 356 patients aged between 18 and 90 years with end-stage renal failure and chronic haemodialysis treatment. The patients will be randomized to either treatment with amlodipine 10 mg/day or placebo. The occurrence of events will be documented and evaluated prospectively over a period of 30 months.
The purpose of this study is to demonstrate the safety and effectiveness of Hectorol® (doxercalciferol) capsules in treating patients with Stage 3 or Stage 4 chronic kidney disease (CKD) with secondary hyperparathyroidism who have vitamin D levels in the normal range. Previous studies with doxercalciferol were conducted in patients who had low levels of vitamin D.
Clinical Problem: Renal insufficiency after heart transplantation caused by cyclosporine medication was addressed. Current therapeutic approaches include cyclosporine reduction or discontinuation. It is unclear whether discontinuation of low dose cyclosporine also has a beneficial effect, i.e. is there a threshold effect for cyclosporine nephrotoxicity? Study Design: Heart transplant patients with a moderate degree of renal failure on low dose cyclosporine were randomized to either a) no change; or b) discontinuation of cyclosporine and initiation of rapamycin immunosuppression. Read-Out: Renal function after 6 months; tolerability; and safety were assessed.