View clinical trials related to Secondary Hyperparathyroidism.
Filter by:Kidney disease patients have a variety of bone disorders that result in bone loss and fractures. The mechanisms of these bone disorders are not clear but may be related to abnormal modification of a bone protein known as collagen. Therefore, the investigators are conducting this research study to identify underlying mechanisms that are responsible for the disruption of bone collagen and determining whether the abnormal bone collagen impairs bone strength. The investigators intend to identify these mechanisms through studying relationships between kidney disease and bone strength via bone imaging, bone biopsy and non-invasive measures from blood and skin.
The main study aim is to quantify the agreement between the analytical results provided by two third generation and two second generation Parathyroid hormone (PTH) assays. The primary comparison will be performed between the second-generation PTH assay"Intact PTH assay" from Siemens Healthcare Diagnostics Inc. and the third-generation PTH assay "biointact (1-84)" from Roche Diagnostics in terms of a Bland-Altman analysis. Several studies have evaluated the correlation between various PTH assays at a single time-point, but no previous study has tested the hypothesis that longitudinal changes in PTH levels, which are important for making treatment decisions, can be monitored by several PTH assays alike. To this aim, the key secondary objective is to analyze the longitudinal variance in PTH over the course of 1 year, using each of two assays of the second and third generations, respectively. Other secondary objectives include determining changes in serum phosphate, serum calcium, fibroblast growth factor 23 (FGF23), with respect to treatment decisions. For clinical applicability of the results to be obtained here, an important goal of the present study will be not to influence treatment decisions, which will remain independent of the study investigators, at the full responsibility of the hemodialysis physicians. At every quarterly blood draw over the course of one year, the investigators will freeze the serum from 100 patients, and at the end of 4 quarters the investigators will analyze PTH-levels using the following assays: Intact Parathyroid Hormone (Advia Centaur, Siemens Healthcare), PTH-Intact (Cobas, Roche), PTH (1-84) - The agreement between the PTH assays will be analyzed at baseline, as well as at the subsequent quarterly evaluation time-points by Bland-Altman analysis and complemented by Passing-Bablok regression. The longitudinal changes in PTH will be displayed graphically and analyzed by estimating the within-patient variance across time, the between patient variance at each time-point as well as effects on the mean log-PTH level due to course of disease and therapeutic interventions from a linear mixed model.
The primary objective is to demonstrate that treatment with etelcalcetide (AMG 416) is not inferior to treatment with cinacalcet for lowering serum intact parathyroid hormone (PTH) levels by > 30% from baseline among participants with chronic kidney disease (CKD) and secondary hyperparathyroidism (SHPT) who require management with hemodialysis.
This was a multiple-dose, double-blind, randomized, placebo-controlled study. Chinese subjects residing in Mainland China with chronic kidney disease (CKD) receiving hemodialysis were randomized in a 3:1 ratio to receive 5 mg intravenous (IV) of etelcalcetide or placebo 3 times a week (TIW) for approximately 4 weeks, with a subsequent follow up period of approximately 4 weeks. Doses were given at the end of each scheduled hemodialysis session on study days 1 through day 27 and subject participation was complete after day 55 end-of-study (EOS) procedures were performed. Doses were administered TIW for 4 weeks, for a total of 12 doses.
This study is conducted to assess the efficacy and safety of SK-1403 in Hemodialysis Patients with Secondary Hyperparathyroidism. In the first treatment period, the efficacy of SK-1403 is assessed after 18 weeks of treatment with SK-1403 individually dose-adjusted . Safety is also assessed during this period. Patients who completed the first treatment period proceed to the second treatment period and receive the treatment with SK-1403 for 34 weeks. Efficacy and safety of SK-1403 are also assessed during this period.
Background: Calcimimetic therapy has been shown to reduce systemic FGF23 levels, which themselves are associated with left ventricular hypertrophy (LVH) in chronic kidney disease (CKD). Methods/design: This is a randomized multicenter trial in which the effect of etelcalcetide in comparison to alfacalcidol on LVH and cardiac fibrosis in hemodialysis patients with secondary hyperparathyroidism (sHPT) will be investigated. The investigators will perform a comparative trial testing etelcalcetide vs. alfacalcidol treatment on top of conventional HPT therapy for 12 months. A total of 62 hemodialysis patients with sHPT and LVH will be enrolled in the study. After a washout of all calcimimetic and vitamin D treatment, subjects will be randomized at 1:1 ratio to either etelcalcetide or alfacalcidol. The participants will undergo cardiac imaging consisting of cardiac resonance imaging (cMRI) and strain echocardiography before and at baseline and one year. Etelcalcetide or alfacalcidol will be administered intravenously three times per week following chronic hemodialysis treatment. The primary end point will be a change in left ventricular mass index (LVMI) measured in g/m2. As secondary end points the changes in left atrial diameter (LAD), cardiac fibrosis, wall motion abnormalities and left ventricular function, changes in serum FGF 23 and soluble Klotho levels as well as changes in proBNP as well as pre- and postdialysis troponin T (TnT) levels will be determined. Additionally a quantitative analysis of the treatment influence on the individual metabolites of the renin-angiotensin-aldosterone system (RAAS) will be performed using mass spectrometry ("RAAS fingerprint").
The aim of this study is to evaluate the prevalence of secondary hyperparathyroidism among patients with diabetic nephropathy.
This study is designed to evaluate efficacy and safety of KHK7580 orally administered once daily for 32 weeks for patients with secondary hyperparathyroidism receiving peritoneal dialysis. After 32-week treatment period, the subjects will receive KHK7580 in the 20-week extension period to evaluate long-term safety and efficacy.
This long-term study is designed to evaluate safety and efficacy of KHK7580 orally administered once daily for 52 weeks for patients with secondary hyperparathyroidism receiving hemodialysis.
The purpose of this study is to evaluate the efficacy and safety of KHK7580 orally administered once daily for 30 weeks in subjects with secondary hyperparathyroidism (SHPT) receiving hemodialysis in a randomized, double-blind, intra-subject dose-adjustment, parallel-group design with cinacalcet hydrochloride as an active control.