Bone Health in Youth With Type 1 Diabetes
2020年10月7日 更新者：Deborah Mitchell, MD、Massachusetts General Hospital
Bone Mineral Accrual and Microarchitecture in Youth With Type 1 Diabetes
This is an observational study of children and young adults ages 6-20 years with type 1 diabetes and age- and race-matched controls.
The investigators will be examining blood and urine hormone levels as well as measures of bone density including DXA and high-resolution peripheral quantitiative computed tomography.
The investigators will also be collecting data regarding physical activity via use of wearable accelerometers.
The investigators hypothesize that youth with type 1 diabetes will have slower bone accrual and impaired bone microarchitectural integrity compared with non-diabetic controls, and that bones of individuals with type 1 diabetes will not respond as well to physical activity.
The investigators hypothesize that poor bone accrual will be associated with sub-optimal glucose control as well as lower levels of insulin-like growth factor 1.
研究概览
研究类型
观察性的
注册 (预期的)
242
联系人和位置
本节提供了进行研究的人员的详细联系信息，以及有关进行该研究的地点的信息。
学习联系方式
- 姓名：Deborah M Mitchell, MD
- 电话号码：617-724-2034
- 邮箱：dmmitchell@partners.org
学习地点
-
-
Massachusetts
-
Boston、Massachusetts、美国、02114
- 招聘中
- Massachusetts General Hospital
-
接触：
- Deborah M Mitchell, MD
- 电话号码：617-724-2034
- 邮箱：dmmitchell@partners.org
-
-
参与标准
研究人员寻找符合特定描述的人，称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。
资格标准
适合学习的年龄
6年 至 20年 (孩子、成人)
接受健康志愿者
是的
有资格学习的性别
全部
取样方法
非概率样本
研究人群
youth and young adults with type 1 diabetes and healthy controls
描述
Inclusion Criteria:
- Age 6-20 years
- Out of honeymoon period (cohort with diabetes)
Exclusion Criteria:
- BMI<5th percentile for age
- BMI>95th percentile for age
- Celiac disease
- Hyperthyroidism, uncontrolled hypothyroidism
- History of significant hepatic disease, renal disease, oncologic disease, cardiovascular disease, psychiatric disease
- Anemia (Hgb <11)
- Taking medications other than insulin known to affect bone health (including hormonal contraception, glucocorticoids, growth hormone)
学习计划
本节提供研究计划的详细信息，包括研究的设计方式和研究的衡量标准。
研究是如何设计的？
设计细节
队列和干预
团体/队列 |
|---|
|
健康对照
|
|
youth with type 1 diabetes
|
研究衡量的是什么？
主要结果指标
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Rate of bone mineral accrual
大体时间：0, 12, 24 months
|
Bone mineral mass and density will be measured by dual-energy x-ray absorptiometry (DXA) at baseline and 12 months.
Percent change over time will be calculated and then compared in subjects with type 1 diabetes and matched control subjects.
|
0, 12, 24 months
|
次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Cross-sectional comparison of bone microarchitectural parameters in patients with diabetes vs. controls
大体时间：Baseline
|
Bone microarchitecture will be assessed by high-resolution peripheral quantitative computed tomography (HR-pQCT).
Parameters measured will include cortical compartment density, cortical thickness, cortical porosity, trabecular density, trabecular number, and trabecular thickness.
|
Baseline
|
|
Rate of bone mineral accrual
大体时间：0 and 24 months
|
Bone mineral mass and density will be measured by dual-energy x-ray absorptiometry (DXA) at baseline and 24 months.
Percent change over time will be calculated and then compared in subjects with type 1 diabetes and matched control subjects.
|
0 and 24 months
|
|
Change bone microarchitectural parameters in patients with diabetes vs. controls
大体时间：0 and 24 months
|
Bone microarchitecture will be assessed by high-resolution peripheral quantitative computed tomography (HR-pQCT) at 0 and 12 months.
Parameters measured will include cortical compartment density, cortical thickness, cortical porosity, trabecular density, trabecular number, and trabecular thickness and percent change over 12 months will be calculated.
Percent change will be compared in patients with diabetes and matched controls.
|
0 and 24 months
|
其他结果措施
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Association of glycemic control with bone mineral accrual
大体时间：0 and 24 months
|
Glycemic control will be assessed by hemoglobin A1c measurements at study visits and as part of routine diabetes care.
An average hemoglobin A1c over the time of observation will be calculated using the trapezoidal rule.
Association of glycemic control with bone mineral accrual as measured by DXA will be examined via regression analysis.
|
0 and 24 months
|
|
Association of bone mineral accrual with moderate-to-vigorous physical activity
大体时间：0 and 24 months
|
activity will be assessed with accelerometers.
The association of bone accrual among youth with and without diabetes will be assessed by correlation analysis.
|
0 and 24 months
|
合作者和调查者
在这里您可以找到参与这项研究的人员和组织。
调查人员
- 首席研究员：Deborah M Mitchell, MD、Massachusetts General Hospital
出版物和有用的链接
负责输入研究信息的人员自愿提供这些出版物。这些可能与研究有关。
一般刊物
- Joseph TV, Caksa S, Misra M, Mitchell DM. Hip Structural Analysis Reveals Impaired Hip Geometry in Girls With Type 1 Diabetes. J Clin Endocrinol Metab. 2020 Dec 1;105(12):e4848-56. doi: 10.1210/clinem/dgaa647.
- Mitchell DM, Caksa S, Joseph T, Bouxsein ML, Misra M. Elevated HbA1c Is Associated with Altered Cortical and Trabecular Microarchitecture in Girls with Type 1 Diabetes. J Clin Endocrinol Metab. 2020 Apr 1;105(4):e1648-56. doi: 10.1210/clinem/dgz221.
研究记录日期
这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查，以确保它们在发布到公共网站之前符合特定的质量控制标准。
研究主要日期
学习开始
2013年8月1日
初级完成 (预期的)
2023年7月1日
研究完成 (预期的)
2024年7月1日
研究注册日期
首次提交
2014年5月13日
首先提交符合 QC 标准的
2014年5月14日
首次发布 (估计)
2014年5月16日
研究记录更新
最后更新发布 (实际的)
2020年10月9日
上次提交的符合 QC 标准的更新
2020年10月7日
最后验证
2020年10月1日
更多信息
此信息直接从 clinicaltrials.gov 网站检索，没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求，请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改，我们的网站上也会自动更新.