View clinical trials related to Secondary Hyperparathyroidism.
Filter by:Retrospective chart review to gather information on Sensipar patterns of use and effects on biochemical parameters in renal transplant recipients
The purpose of this study is to evaluate whether cinacalcet + low dose vitamin D attenuates the progression of vascular calcification over one year, compared with a treatment regimen that includes flexible vitamin D dosing in the absence of cinacalcet, in subjects with chronic kidney disease receiving hemodialysis
This study is designed to test whether calcium supplementation alone or calcium plus vitamin D reduces the incidence of fractures, reduces high parathyroid secretory activity, and halts bone loss in a population-based sample of women 55+ years of age. - A calcium supplement of 1400 mg/d will significantly reduce the cumulative incidence of spine and appendicular fractures over four years for independently living, rural women 55 years of age and older compared to similar women on their usual diets. - A calcium supplement of 1400 mg/d plus 1100 IU vitamin D/d will significantly reduce the cumulative incidence of spine and appendicular fractures compared to a calcium supplement only.
The purpose of this study is to evaluate the effects of cinacalcet (cinacalcet HCl or Sensipar®/Mimpara®) on cardiovascular events and death in chronic kidney disease (CKD) patients with secondary hyperparathyroidism (HPT) who are receiving dialysis.
The purpose of this study was to compare two different initial dosing schemes for the administration of paricalcitol in hemodialysis patients with secondary hyperparathyroidism: the already in use iPTH/80 scheme, and an iPTH/120 scheme, which corresponds to the immediately lower dose, based on current instructions on paricalcitol dose adjustment. We studied the effectiveness of the two dosing schemes in achieving a target iPTH level (150 – 300 pg/mL)
Obese persons are known to have elevated levels of parathyroid hormone (PTH) and low levels of vitamin D. These hormones are important in regulation of the body's calcium stores and bone health. We would like to investigate these abnormalities and the accuracy of our current diagnostic tests by comparing results of standard assays for vitamin D and PTH to more specific tests, in obese subjects at baseline and as vitamin D is replaced. We will also compare two standard vitamin D replacement regimens to determine if one is more effective. This is a pilot study with two parts: Part 1 will compare levels of PTH and vitamin D using two different assays in obese subjects who have normal vitamin D and those who do not. We plan to enroll 20 subjects who have normal vitamin D levels and 40 subjects who have vitamin D insufficiency. All subjects will fill out questionnaires about the amount of calcium and vitamin D in their diet, and their recent sunlight exposure. We will ask for blood samples so that we can measure levels of calcium, vitamin D, albumin, creatinine, glucose, insulin and the different forms of PTH. Subjects who have vitamin D insufficiency will then be randomized to receive Vitamin D2 or Vitamin D3 in standard doses for eight weeks, in an open label trial. At four and eight weeks, these subjects will fill out the above questionnaires and have the blood tests repeated. For safety purposes, urine calcium will also be monitored.
The purpose of this study is to evaluate the effects of cinacalcet on markers of bone turnover in patients with kidney disease who are receiving dialysis.
The purpose of this study is to evaluate the effects of Zemplar® Injection and Hectorol® Injection on intestinal calcium absorption in Chronic Kidney Disease Stage 5 subjects on hemodialysis.
The purpose of this study is to compare the proportion of chronic kidney disease (CKD) subjects on dialysis receiving Sensipar® and low dose vitamin D or escalating doses of vitamin D alone who are able to achieve the National Kidney Foundation-Kidney Disease Outcomes Quality Initiative (NKF-K/DOQI) secondary hyperparathyroidism (HPT) treatment targets for both biointact parathyroid hormone (biPTH) and calcium-phosphorus (Ca x P) product.
The purpose of this research is to study the effects and safety of Sensipar approved by the Food and Drug Administration (FDA) in patients with kidney failure who are being treated with dialysis and have uncontrolled secondary hyperparathyroidism (HPT).