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Hyperparathyroidism, Primary clinical trials

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NCT ID: NCT00982722 Completed - Clinical trials for Primary Hyperparathyroidism

Vitamin D Supplementation After Parathyroid Surgery

Start date: April 2008
Phase: N/A
Study type: Interventional

A randomised double blind clinical trial, accepted by the Medical Products Agency and registered in the European Clinical Trials Database. Aims to evaluate the prevalence of vitamin D deficiency in a pHPT population in relation to gender and age, the correlation between vitamin D status, pre- and postoperative parathyroid hormone level and bone density and the correlation between vitamin D status, metabolic, cardiovascular risk factors and QoL aspects before and after parathyroid adenomectomy.

NCT ID: NCT00975221 Completed - Hypercalcemia Clinical Trials

Efficacy and Safety Study of Cinacalcet for the Treatment of Hypercalcemia in Patients With Primary Hyperparathyroidism Unable to Undergo Parathyroidectomy

Start date: March 10, 2010
Phase: Phase 3
Study type: Interventional

This study is designed to demonstrate the efficacy and to assess the safety of cinacalcet for the reduction of hypercalcemia in patients with primary hyperparathyroidism for whom parathyroidectomy is indicated on the basis of an elevated corrected total serum calcium, but who are unable to undergo parathyroidectomy.

NCT ID: NCT00936988 Completed - Clinical trials for Hyperparathyroidism, Primary

A Multicenter, Open-label Extension Study to Assess the Long-term Safety and Efficacy of an Oral Calcimimetic Agent AMG 073 (Cinacalcet) in Primary Hyperparathyroidism

Start date: November 2000
Phase: Phase 2
Study type: Interventional

This multicenter, open-label, single-arm, extension study was designed to evaluate long-term tolerability, safety, and efficacy of cinacalcet. Subjects were enrolled immediately after they completed the parent study, 990120. All subjects began treatment with 30 mg cinacalcet twice daily (BID), with dose adjustments made per protocol-specified guidelines. The study consisted of 2 consecutive phases that occurred in the following order: a dose-titration phase lasting 12 weeks and a maintenance phase lasting approximately 4½ years.

NCT ID: NCT00936650 Completed - Clinical trials for Hyperparathyroidism, Primary

A Study to Assess the Efficacy and Safety of Twice-Daily Dose Regimens of an Oral Calcimimetic Agent AMG 073 (Cinacalcet) in Primary Hyperparathyroidism (PHPT)

Start date: November 1999
Phase: Phase 2
Study type: Interventional

This randomized, placebo-controlled study in patients with primary HPT was designed to evaluate the efficacy, safety, pharmacokinetics, and health-related quality of life (HRQOL) of AMG 073 when administered 2 times a day (BID). The study consisted of 3 phases: a 12-week dose-titration phase, a 12-week maintenance phase, and a 28-week follow-up phase.

NCT ID: NCT00928408 Completed - Clinical trials for Hyperparathyroidism, Primary

PRIMARA: A Prospective Descriptive Observational Study to Review Mimpara (Cinacalcet) Use in Patients With Primary Hyperparathyroidism in Clinical Practice

Start date: October 2009
Phase:
Study type: Observational

This is a multicentre, descriptive observational study of adult patients with primary HPT receiving cinacalcet in clinical practice in a number of countries in Europe. Patients will be enrolled within 1 month of initiating cinacalcet treatment, and data will be collected prospectively for up to 1 year from initiation. Data will continue to be collected from patients discontinuing cinacalcet before the end of this period.

NCT ID: NCT00877981 Completed - Clinical trials for Primary Hyperparathyroidism

Open Versus Video-Assisted Minimal-Invasive Parathyroid Surgery

Start date: February 2003
Phase: N/A
Study type: Interventional

The aim of the present study was to compare open minimal-invasive parathyroid surgery with video-assisted parathyroidectomy in primary hyperparathyroidism (PHPT) patients with a positive sestamibi scan in a multicentre randomized trial in order to evaluate if videoassisted surgery gave less postoperative pain and if there was a difference in operating time.

NCT ID: NCT00674154 Completed - Clinical trials for Vitamin D Deficiency

Effect of Vitamin D Treatment in Primary Hyperparathyroidism

Start date: May 2008
Phase: Phase 2/Phase 3
Study type: Interventional

The primary aim of the study is to assess whether 6-months of vitamin D supplements can decrease PTH compared with placebo treatment in primary hyperparathyroidism.

NCT ID: NCT00538720 Completed - Hyperparathyroidism Clinical Trials

Effects of Vitamin D Replacement in Patients With Primary Hyperparathyroidism (PHPT)

Start date: October 2007
Phase: Phase 1
Study type: Interventional

The goal of this clinical research study is to learn how the standard practice of giving Vitamin D supplements to patients with a Vitamin D deficiency may affect the size of the parathyroid glands in patients with PHPT and a Vitamin D deficiency.

NCT ID: NCT00522028 Completed - Clinical trials for Primary Hyperparathyroidism

Asymptomatic Primary Hyperparathyroidism: A Prospective, Randomized Trial

SIPH
Start date: October 1998
Phase: N/A
Study type: Observational

The present study is a randomized, controlled trial that investigates the effects of parathyroidectomy or medical observation in mild asymptomatic pHPT on morbidity and quality of life (QoL).

NCT ID: NCT00432939 Completed - Clinical trials for Primary Hyperparathyroidism

Primary Hyperparathyroidism: Non-classical Manifestations

Start date: October 2005
Phase: N/A
Study type: Observational

This is a research study to investigate cardiovascular health in people with mild hyperparathyroidism. Previous research has suggested that severe hyperparathyroidism may be associated with abnormalities in the heart and blood vessels. It is unclear whether mild hyperparathyroidism affects cardiovascular health. This study involves the investigation of the heart and blood vessels of people with mild hyperparathyroidism. Various non-invasive laboratory and radiological test to assess cardiovascular and bone health will be done at set intervals over the course of 2 years. It is our hypothesis that patients with primary hyperparathyroidism will have subtle abnormalities in their cardiovascular system. Using state-of-the art techniques that are sufficiently sensitive to detect these subtle abnormalities, we will define cardiovascular features of this disease that have, up to now, eluded clear definition. We expect taht the extent of these findings will be related to the severity of the underlying primary hyperparathyroidism. We further hypothesize that cardiovascular manifestations may regress with successful cure of the hyperparathyroid state.