View clinical trials related to Hyperparathyroidism, Secondary.
Filter by:Primary Objective: Evaluate the effect of Hectorol® capsules in reducing elevated levels of intact parathyroid hormone (iPTH). Secondary Objectives: - Evaluate the safety profile of Hectorol® capsules versus Rocaltrol® (calcitriol) capsules. - Determine the pharmacokinetic profile of 1,25-dihydroxyvitamin D2 after administration of Hectorol®.
This is a study to evaluate the safety and pharmacokinetics in pediatric patients with secondary hyperparathyroidism receiving a single dose of etelcalcetide at the end of hemodialysis.
This study investigates whether calcium citrate or calcium carbonate are the optimal supplement to treat secondary hyperparathyroidism following Roux-en-Y gastric bypass operation. Half of the participants will be randomized to receive calcium citrate, while the other half will receive calcium carbonate. The study will be double blinded.
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.
The purpose of this study is to compare short-term and long-term efficacy of total parathyroidectomy with autotransplantation and total parathyroidectomy without autotransplantation for Secondary hyperparathyroidism.
Based on the evidence that periostin is specifically involved in intra-cortical remodeling control, our working hypothesis is that assessment of its concentration in the serum would be helpful in identifying patients with severe cortical porosity, a critical parameter in bone fragility. Periostin expression by osteoblasts and osteocytes is part of the bone cortical response to anabolic stimuli such as mechanical strain or intermittent increase in parathyroid hormone. However, it remains unknown whether this expression may participate as well to mechanisms that will lead to exaggerated intra-cortical remodeling and subsequent bone loss. In rare clinical situations in which trans-iliac bone biopsies will be necessary to better understand their bone status in addition to densitometry and biological bone markers assessment, specific analyses using immune-staining techniques will be performed on the bone sample. Data from routine follow-up every six months will be also collected in this specific sub-group. High resolution peripheral quantitative computerized tomography (HR-pQCT) gives the opportunity of performing a virtual bone biopsy providing information on trabecular and cortical microarchitecture in vivo. These microarchitectural parameters allow a more accurate evaluation of the alteration of the bone structure and therefore of the fracture risk as compared to current tools used in clinical practice such as densitometry. However, the availability of such HRpQCT facilities is limited and there is on-going development on the best way of measuring porosity for example. The definition of a biological profile including key proteins such as periostin and sclerostin involved in porosity mechanisms is therefore of great interest. A better understanding of the relationship between bone matrix components and parathyroid hormone effects also appears as critical. Follow-up of routine evaluation parameters reflecting bone status in a subgroup of specific patients could also provide new and additional information.
While the duration of renal transplant function has increased over the last decade kidney transplanted patients (KTP) still exhibit a fracture risk 4 times higher than in the general population. Fracture risk remains increased despite the improvement of immunosuppressive therapies (IST) that allowed the reduction of steroid administration. Potential explanations for this could be 1) that Chronic Kidney Disease (CKD) induces renal osteodystrophy that occurs before kidney transplanted, impairs bone metabolism and promotes bone fragility ; 2) that kidney transplanted patients are older and older (14% of kidney transplanted patients were older than 70 in 2011 in France), ageing being a major risk factor for fractures 3) IST, besides steroid, may have deleterious effects on bone and 4) that secondary hyperparathyroidism, a risk factor of fractures, persists after kidney transplanted . Thus, the pathophysiology and epidemiology of bone fragility of kidney transplanted patient remains insufficiently characterized. Despite these data, and contrarily to what is done for patients candidates for cardiac transplantation, there is no general consensus for performing bone evaluation before kidney transplanted . Thus it's necessary to individualize the management of bone fragility and prevent fractures according to strategies that remain to be defined, provided that patients at risk are better detected.
This study evaluates the metabolic and clinical results of two well recognized and accepted surgical techniques in the management of severe hyperparathyroidism in patients under regular dialysis treatment.