Effectiveness and Safety Study of the Continuous Glucose Monitoring System for Home Use (Including In-clinic Sessions) in Patients With Diabetes
试验速览
- 阶段
- 不适用
- 发起方
- 入组人数
- 144
- 主要终点
- the percentage of MARD (Mean Absolute Relative Difference)
研究概览
简要总结
Subjects in the upper arm group will have a sensor of the CGM System inserted on each arm (left and right upper arm). Subjects in the abdomen group will have 2 sensors inserted, one on each side of the abdomen (left and right abdomen) The sensors will be placed for 29 days. After sensor insertion, the CGM system should be calibrated with capillary blood glucose readings from a self-monitoring blood glucose meter。
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Other
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 70 Years(Adult, Older Adult)
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Type 1 or 2 diabetes mellitus
- •Male or female age ≥ 18 years old and ≤ 70 years old
- •Willingness to adopt measures to prevent water coming into contact with the device sensor (e.g. abstain from swimming, sauna, avoid hitting the sensor with direct jets of water)
- •Ability to communicate with the investigators, able to operate medical device after training and comply with the testing procedures outlined in this protocol (including, but not limited to, willing to wear the continuous glucose monitor and testing capillary blood glucose)
- •Subjects who show understanding of the study procedures and willing to sign a written informed consent form.
排除标准
- •Hospitalization due to diabetic ketoacidosis or severe hypoglycemia, within 3 months prior to screening
- •HbA1c >13% or urine ketone 3+
- •Use of pacemaker
- •Body Mass Index (BMI) ≤18.0kg/m2
- •Extensive skin changes/diseases that preclude wearing the required number of devices on normal skin at the proposed application sites, i.e. upper arm or abdomen (e.g., extensive psoriasis, recent burns or severe sunburn, extensive eczema, extensive scarring, extensive tattoos, dermatitis herpetiformis)
- •Any psychiatric disease such as depression or anxiety
- •Any severe hepatic, renal, cardiac, cerebral, respiratory or neurological diseases (e.g. serum ALT, AST, Creatinine level ≥3 times the upper limit of normal)
- •Has a MRI scan, CT scan or other procedure requiring the subject be under strong magnetic or electromagnetic environment, scheduled during the proposed study participation
- •Blood loss >400ml in the past 3 months (including blood donation)
- •Have a known allergy to medical-grade adhesives, or known hypersensitivity to any of the products used in the study
- •Difficulty in sampling venous blood or cannot tolerate venipuncture
- •Participated in other investigational studies in the past 3 months
- •Currently pregnant or lactating women, or positive pregnancy test
- •Any condition that, in the opinion of the investigator, renders the subject not suitable for the study.
研究组 & 干预措施
the upper arm group on Day 2
The upper arm group to perform Visit 3 venous blood glucose measurement on Day 2.
干预措施: continuous glucose-monitoring (Device)
the upper arm group on Day 15±1 day
The upper arm group to perform Visit 3 venous blood glucose measurement on Day 15±1 day.
干预措施: continuous glucose-monitoring (Device)
the upper arm group on Day 29±1 day
The upper arm group to perform Visit 3 venous blood glucose measurement on Day 29±1 day.
干预措施: continuous glucose-monitoring (Device)
the abdomen group on Day 2
The abdomen group to perform Visit 3 venous blood glucose measurement on Day 2.
干预措施: continuous glucose-monitoring (Device)
the abdomen group on Day 15±1
The abdomen group to perform Visit 3 venous blood glucose measurement on Day 15±1.
干预措施: continuous glucose-monitoring (Device)
the abdomen group on Day 29±1
The abdomen group to perform Visit 3 venous blood glucose measurement on Day 29±1.
干预措施: continuous glucose-monitoring (Device)
结局指标
主要结局
the percentage of MARD (Mean Absolute Relative Difference)
时间窗: up to 29 days
Analyze the proportion of readings in MARD \<18% (95%CI\<20%).
%20/20 agreement between the test device readings and the EKF readings: %20/20 = A + B
时间窗: up to 29 days
A = the proportion of the CGM system values that were within ±20% of paired EKF values \>4.4mmol/L (\>80 mg/dL) B = the proportion of the CGM system values that were within ±1.1mmol/L (20mg/dL) of paired EKF values ≤4.4mmol/L (≤80mg/dL)
Proportion of readings in Region A + Region B of Clarke Error Grid
时间窗: up to 29 days
Analyze the proportion of readings in each region (Region A, B, C D and E). Readings in Region A are clinically accurate, while readings in Region B are of clinically acceptable accuracy. Readings in C, D and E are inaccurate to various degrees.
Proportion of readings in Region A + Region B of Consensus Error Grid
时间窗: up to 29 days
Analyze the proportion of readings in Region A and Region B.
次要结局
- Alarm success rate 4(up to 29 days)
- Alarm success rate 3(up to 29 days)
- Alarm success rate2(up to 29 days)
- Alarm success rate1(up to 29 days)
- Sensor Stability(up to 29 days)
