Characterization of Bone Architectural Parameters Assessed by High-Resolution Peripheral Quantitative Computed Tomography in Post-menopausal Women Affected With Primary Hyperparathyroidism
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 82
- 试验地点
- 6
- 主要终点
- Cortical thickness measured by HR-pQCT
研究概览
简要总结
Bone lesions are frequent in primary hyperparathyroidism (PHPT). Conventional measurement by Dual-Energy X-ray Absorptiometry does not provide enough information about the bone impact of excessive parathyroid hormone (PTH) secretion. High-Resolution peripheral Quantitative Computed Tomography (HR-pQCT) assesses separately cortical and trabecular bone sites as well as geometric characteristics of peripheral skeleton. In postmenopausal women, HR-pQCT has shown that decreased microarchitectural parameters are associated with reduced bone strength independently of BMD. The purpose of this study is to characterize the impact of PHPT in cortical and trabecular bone measured by HR-pQCT in postmenopausal women with PHPT followed for one year, in comparison with control postmenopausal women.
详细描述
Principal objective : To characterize the impact of PHPT in cortical and trabecular bone measured by HR-pQCT in postmenopausal women with PHPT followed for one year, in comparison with control postmenopausal women.
Secondary Objectives : 1) To compare the changes of bone micro-architecture in PHPT women with and without surgery to those of controls 2) To determine if the changes of micro-architecture are related to the severity of PTH secretion and to their changes after surgery 3) to evaluate the association of clinical and biological factors with quantitative bone micro-architectural indices and their changes.
Principal evaluation criteria : Cortical thickness
Secondary evaluation criteria : Quantitative parameters measured with HR-pQCT: trabecular microarchitecture (trabecular bone volume, number, separation, thickness and heterogeneity of trabeculae), cortical microarchitecture (total surface, polar moment of inertia), volumetric density of total, cortical and trabecular bone. Biological parameters: PTH, serum calcium and phosphorus, 25(OH)D, 1,25(OH)2D, biomarkers of bone remodelling, and urinary calcium. BMD measured by DXA. Clinical factor risks of bone loss.
Type of study : Pathophysiological, multicentric, comparative study, with a prospective follow-up of one year in postmenopausal caucasian women affected with PHPT (cases) or non affected by PHPT (controls). Each control will be matched for age, date of menopause, height and weight, to PHPT women.
研究设计
- 研究类型
- Interventional
- 分配方式
- Non Randomized
- 干预模型
- Parallel
- 主要目的
- Diagnostic
- 盲法
- None
入排标准
- 年龄范围
- — 至 81 Years（Child, Adult, Older Adult）
- 性别
- Female
- 接受健康志愿者
- 是
入选标准
- •Patients: caucasian women, menopaused for at least one year, aged less than 81 years, affected with symptomatic or asymptomatic PHPT
- •Control population: caucasian women, menopaused for at least one year, aged less than 81 years, without PHPT
排除标准
- •diseases or medications interfering with bone and mineral metabolism
结局指标
主要结局
Cortical thickness measured by HR-pQCT
时间窗: one year
次要结局
- Three-dimensional evaluation of the cortical and trabecular bone by HR-pQCT(one year)
- Biological and quantitative parameters (assessed by HR-pQCT)(one year)
- Clinical, biological and bone densitometry parameters (assessed by DXA)(one year)