View clinical trials related to Renal Insufficiency, Chronic.
Filter by:The purpose of this study is to learn more about how the kidneys control the blood levels of phosphorus in patients with early chronic kidney disease. The ultimate goal is to use this information to design improved treatment strategies for phosphorus-related problems for the millions of patients with chronic kidney disease.
This 2 arm study will compare the level of anemia, and the decline in renal function, between patients receiving NeoRecormon, and those not receiving it. Patients with chronic kidney disease, stage 2-4, and not receiving dialysis, will be randomized 2:1 to a group receiving NeoRecormon (at a dose determined by the investigator to achieve and maintain an Hb level of 120-135 g/L), or to a control group not receiving NeoRecormon. The anticipated time on study treatment is 3-12 months, and the target sample size is <100 individuals.
The purpose of this study is to assess the proportion of subjects sucessfully achieving a mean Hemoglobin greater than or equal to 11 g/dL during the evaluation period following extension from Weekly (QW) to Once Every Other Week (Q2W) Darbepoetin Alfa administraion.
The primary objectives of this study are the following: 1. To test if the proportion of participants achieving a hemoglobin value greater than or equal to 10.0 g/dL at any time point after the first dose during the study is greater than 0.8 when administered de novo darbepoetin alfa once a week (QW) for treatment of anemia in pediatric patients with chronic kidney disease receiving and not receiving dialysis, and 2. To test if the proportion of participants achieving a hemoglobin value greater than or equal to 10.0 g/dL at any time point after the first dose during the study is greater than 0.8 when administered de novo darbepoetin alfa every 2 weeks (Q2W) for treatment of anemia in pediatric patients with chronic kidney disease receiving and not receiving dialysis.
The purpose of this study was to determine the dose ranges of peginesatide administered intravenously or subcutaneously that maintained hemoglobin in participants on dialysis whose hemoglobin values were stable on epoetin (alfa or beta).
An important subgroup of protein-bound toxins are generated as a result of protein fermentation in the colon. P-cresol is a fermentation metabolite of tyrosine. In renal failure, the colonic generation rate of p-cresol is markedly elevated. After absorption, the majority of p-cresol is conjugated to form p-cresyl sulphate. There is clear evidence, both in vitro and in vivo, that accumulation of conjugated fermentation metabolites is correlated with clinical important endpoints. Free p-cresol is an independent predictor for mortality in hemodialysis patients. Moreover, in renal failure patients, neither hemodialysis nor peritoneal dialysis is capable of normalising the clearly elevated serum concentrations of p-cresyl sulphate. Removal is at least partially diminished by the important protein binding of p-cresol. Besides adaptation of renal replacement therapies to improve removal of protein bound solutes, another approach is to lower the generation of uremic toxins. The mechanisms underlying colonic carbohydrate and protein fermentation, responsible for the generation of p-cresol, are only partially understood. On the one hand, the ratio of fermentable carbohydrates to proteins has been shown to be an important determinant of protein fermentation. On the other hand, changes in the colonic bacterial flora influence the generation of p-cresol in dogs and in healthy human individuals. The effect of antibiotic therapy on bacterial protein fermentation and thus on the generation of p-cresol is not known. A reanalysis of data abstracted from a recent longitudinal study in peritoneal dialysis (PD) patients suggests that antibiotic therapy may lower p-cresol levels substantially. The current study aims at confirming these data in a prospective manner.
Despite major advances in the treatment of chronic kidney disease, the age and sex matched mortality far exceeds that of the normal population. As in the normal population, the majority of deaths are related to cardiovascular disease. Mounting data point to the lethal synergy between chronic kidney disease and cardiovascular disease. This relation is present from early stages of chronic kidney disease on. Several uremic toxins have been demonstrated to play an important role in kidney disease related endothelial dysfunction. In peritoneal dialysis patients, data on the relation between uremic toxins, endothelial dysfunction and microparticles are lacking. The investigators hypothesize that endothelial dysfunction and uremic toxins are interrelated in peritoneal dialysis patients
The study is about possible protective effects of paricalcitol (Zemplar) upon inflammation, blood pressure and kidney function. Kidney Inflammation occurs when white blood cells become abnormally stimulated and accumulate in the kidney and cause damage to the kidney. The purpose of this study is to determine if paricalcitol helps improve kidney injury, blood pressure control and kidney function in patients with chronic kidney disease. The study will last about 7 weeks and involves about 8 visits to the medical center.
This is a 12 week pilot and feasibility study with an enrollment goal of 30 subjects. Half of the subjects will be randomized to vitamin D3 and the other half will receive a placebo. Subjects will be referred from the nutrition or renal clinic at Emory. CKD stage 3 and 4 patients will be eligible for participation if they have been determined to have vitamin D deficiency and are not on treatment with vitamin D or vitamin D analogues. Subjects will sign an informed consent form after reviewing the protocol in detail with the principal investigator. A questionnaire would collect information about dietary vitamin D intake, sunlight exposure, and any symptoms of vitamin D deficiency. The subject will have baseline levels of serum vitamin D (25-hydroxyvitamin D), parathyroid hormone (PTH), serum calcium and phosphate, creatinine and other markers of bone turnover. The questionnaires and the blood draws would be repeated on the 6th and 12th week of the study. Subjects will be given 12 pills of each containing either 50,000 IU vitamin D or placebo and asked to take one pill a week. They would be scheduled to return to the clinic after 6 weeks and blood measurements would be repeated. Subjects will be asked to revisit for their final visit at the 12th week when they would have their last blood draw and assessment.
This 2 arm study will compare 'time and motion' (provider time spent on anemia management) and effect on hemoglobin (Hb) levels, of methoxy polyethylene glycol-epoetin beta (Mircera) and epoetin alfa, in anemic patients with chronic kidney disease (CKD) on hemodialysis. Patients stable on intravenous (iv) epoetin alfa will be randomized either to receive standard of care therapy (epoetin alfa (iv) 3 times weekly), or to receive Mircera 120-360 micrograms (iv), monthly. After a titration period, average time spent on anemia treatment over a 3 month period will be evaluated. The anticipated time on study treatment is 3-12 months, and the target sample size is 100-500 individuals.