
Vitamin D and Arterial Function in Patients With Chronic Kidney Disease
Arterial DysfunctionChronic Kidney DiseaseThe purpose of this study is to determine whether nutritional (cholecalciferol) or active vitamin D (calcitriol) supplementation improves vascular endothelial function in patients with stage IIIB and IV chronic kidney disease with vitamin D insufficiency or deficiency. The investigators hypothesize that the use of calcitriol supplementation will result in improved vascular endothelial function as compared to cholecalciferol supplementation.

Pilot Study of Velcade® in IgA Nephropathy
Chronic Kidney DiseaseIgA NephropathyThe primary objective of this study is to investigate the ability of Velcade® (bortezomib) to induce complete or partial remission in patients with severe IgA nephropathy. The secondary objectives are to assess clinical outcomes relating to safety and efficacy, such as infection, malignancy, preservation of renal function, partial responders, relapse rate, and to study mechanistic assays to predict remission.

Omega-3 Fatty Acid Supplementation in Children
Chronic Kidney DiseaseHypertriglyceridemiaChildren with Chronic Kidney Disease (CKD) are at very high risk for cardiovascular morbidity and mortality. Hyper-lipidemia, a traditional risk factor for Cardiovascular Disease (CVD), occurs early in the progression of kidney failure; timely identification and intervention is prudent. Currently, there is no known effective therapy for hypertriglyceridemia, the most common lipid abnormality. n-3FA, in doses ranging from 2-6 g/day have effectively lowered elevated triglyceride (TG) levels by 20-50% in a variety of adult populations; however, their use in children with CKD has not been tested in a randomized controlled fashion. This study will provide important information on the safety, efficacy and tolerance of n-3FA in lowering elevated TG levels in children and adolescents with CKD.

The Effect of Non-surgical Periodontal Treatment in the Renal Function of Patients With Chronic...
Chronic Kidney DiseasePeriodontitisPeriodontal disease is a bacterially-induced inflammation. As such, it can become a point of entry of bacteria, toxins and cytokines into the systemic blood circulation, thus adversely affecting the function of kidneys. This is turn can aggravate the condition of patients with CKD. The study hypothesis is that periodontal therapy can improve renal function in patients with CKD and lower the blood levels of markers for systemic inflammation.

Study to Determine Optimum Intravenous Starting Dose of MIRCERA for Treatment of Pediatric Participants...
Renal AnemiaThis sequential study will assess the efficacy and safety of multiple doses of intravenous (IV) methoxy polyethylene glycol-epoetin beta (MIRCERA), and will determine the optimum starting dose for maintenance treatment of anemia in children with chronic kidney disease on hemodialysis. Pediatric participants will remain on epoetin alfa, epoetin beta or darbepoetin alfa during the screening period, after which they will receive IV MIRCERA monthly, at a starting dose related to the previous weekly epoetin or darbepoetin alfa dose. Depending on the response achieved, another group may be selected to receive a higher or a lower dose.

Study of Tacrolimus Immunosuppressive Therapy After Kidney Transplantation
Kidney TransplantationKidney Failure3 moreTo compare the efficacy and safety of Tacrolimus in combination with MMF and Steroids in two regimens of steroid in an adult kidney transplanted population.

Comparative Effects Of Dialysate Flow Rate And Membrane Packing On The Performance Of Dialyzers...
Chronic Kidney DiseaseChronic Renal DiseaseThe purposes of this study are to determine if the performance of a dialyzer depends on how tightly the hollow fiber membranes are packed in the housing of the dialyzer (the membrane packing density) and if that dependence is a function of the dialysate flow rate. The study will examine how efficiently three different sized molecules pass through a dialyzer membrane at different dialysate flow rates in dialyzers with different membrane packing densities. Transfer of urea, phosphorus and beta-2-microglobulin from blood to dialysate will be measured during clinical hemodialysis using four different dialyzers, each used at three different dialysate flow rates. The data derived from these measurements may provide insight into the importance of membrane packing density as a design parameter for hemodialyzers and if changing the membrane packing density might provide equivalent performance at a lower dialysate flow rate.

Testosterone Replacement Therapy in Advanced Chronic Kidney Disease
Kidney FailureKidney DiseasesMuscle wasting is common in advanced chronic kidney disease (CKD) and adversely affects morbidity and mortality. In 2/3 of males with advanced CKD serum testosterone (TT) levels are reduced, and likely contributes to the wasting. As TT in relatively safe physiologic replacement doses, increases muscle mass in otherwise normal TT deficient subjects, we hypothesize that physiologic TT replacement will be effective in preventing and treating the loss of muscle mass and function in CKD patients, will improve quality of life and may reduce some cardiovascular disease (CVD) risk factors.

Safety & Efficacy of Peginesatide for Treatment of Anemia in Participants on Dialysis Not Receiving...
AnemiaChronic Renal Failure1 moreThe purpose of this study is to evaluate the safety and efficacy of peginesatide for the treatment of anemia in participants with chronic kidney disease who are on dialysis and are not taking any treatment to increase their red blood cell production.

Randomized Comparison of xiEnce and visioN Coronary Stents in the sAme muLtivessel Patient With...
Chronic Kidney DiseaseMultivessel Coronary Artery DiseasePercutaneous coronary intervention (PCI) with bare metal stent (BMS) in patients with renal insufficiency has shown unsatisfactory results. Indeed, drug-eluting stents (DES) might reduce the incidence of restenosis and therefore of target lesion revascularization procedures in these patients. We therefore designed a prospective, randomized, multicenter, not-sponsored study to directly compare the efficacy in the prevention of clinical restenosis of everolimus-eluting stent (Xience V) and bare-metal stent (Vision) (both 2nd-generation DES and BMS, respectively), both implanted in the same patient with multivessel disease and renal insufficiency in order to obviate for the multiple and unpredictable characteristics of this high-risk population.