Endogenous Glucose Production in Subjects With Glycogen Storage Disease Type Ia Estimated by a Single Oral Dose of Stable Isotopes: an Investigator-initiated Human Pilot Study
试验速览
- 阶段
- 1 期
- 状态
- 已完成
- 入组人数
- 20
- 试验地点
- 1
- 主要终点
- [6,6-2H2]glucose concentration in GSDIa patients
研究概览
简要总结
Glycogen storage disease type Ia (GSDIa) subjects retain a limited capacity for endogenous glucose production (EGP). To date, the origin of residual EGP in GSDIa patients is unknown. Either increased glycogen debranching or lysosomal glycogen breakdown can account for residual EGP in GSDIa.
Innovative treatments for GSDIa (e.g. AAV8-mediated gene therapy and mRNA therapy) are being developed.Therefore, longitudinal minimally-invasive monitoring of outcomes after therapeutic interventions in GSD Ia subjects becomes warranted.
The primary objective is to test the feasibility of EGP quantification in adult GSDIa subjects by stable isotopes after a single oral [6,6-2H2]glucose dose. Secondary objectives are to compare EGP assessed by a single oral [6,6-2H2]glucose dose (a) in GSDIa patients versus matched healthy participants, (b) among GSDIa patients, (c) in the pre-prandial state versus the fed state, (d) in the controlled hospital setting versus the home setting. Data collected from the continuous glucose monitoring data will also be compared
详细描述
Study design: An investigator-initiated human pilot-study. Study population: Ten adult subjects with GSDIa and ten age and gender-matched healthy subjects.
Interventions: Three experiments will be performed for each subject. During the first in hospital experiment, two oral D-[6,6-2H2]glucose loads will be performed 2 hours before breakfast and at lunchtime, respectively. The third oral D-[6,6-2H2]glucose load will be performed at home (random time). Capillary blood samples will be collected on filter paper at specific time points after each oral D-[6,6-2H2]glucose load. During the experiments, subjects will be monitored by subcutaneous continuous glucose monitoring (CGM).
研究设计
- 研究类型
- Interventional
- 分配方式
- Non Randomized
- 干预模型
- Parallel
- 主要目的
- Basic Science
- 盲法
- None
入排标准
- 年龄范围
- 16 Years 至 —（Child, Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •The diagnosis should be confirmed by G6PC mutation analysis
- •Age above 16 years
- •Stable medical condition before the start of the test procedures
排除标准
- •Age < 16 years
- •Intercurrent illness
- •Recent history of hospitalization due to hypoglycemia
- •Pregnancy
- •History suggestive of diabetes or fasting intolerance
- •First grade family member with a confirmed diagnosis associated with fasting intolerance
结局指标
主要结局
[6,6-2H2]glucose concentration in GSDIa patients
时间窗: every 10 minutes within the first hour as well as 75, 90 and 120 minutes after the oral load
Endogenous glucose production (EGP) in GSDIa will be assessed through minimal model calculation
次要结局
- [6,6-2H2]glucose concentration in the controlled hospital setting versus the home setting in healthy participants(every 10 minutes within the first hour as well as 75, 90 and 120 minutes after the oral load)
- [6,6-2H2]glucose concentration in GSDIa patients and matched healthy participants(every 10 minutes within the first hour as well as 75, 90 and 120 minutes after the oral load)
- [6,6-2H2]glucose concentration in the pre-prandial state versus the fed state in healthy participants(every 10 minutes within the first hour as well as 75, 90 and 120 minutes after the oral load)
- [6,6-2H2]glucose concentration in severe and attenuated GSDIa patients(every 10 minutes within the first hour as well as 75, 90 and 120 minutes after the oral load)
- [6,6-2H2]glucose concentration in the controlled hospital setting versus the home setting in GSDIa patients(every 10 minutes within the first hour as well as 75, 90 and 120 minutes after the oral load)
- [6,6-2H2]glucose concentration in the pre-prandial state versus the fed state in GSDIa patients(every 10 minutes within the first hour as well as 75, 90 and 120 minutes after the oral load)
研究者
Terry G.J. Derks, MD, PhD
Principal Investigator
University Medical Center Groningen