The International Diabetes Closed Loop (iDCL) Trial: A Randomized Crossover Comparison of Adaptive Model Predictive Control (MPC) Artificial Pancreas Versus Sensor Augmented Pump (SAP)/Predictive Low Glucose Suspend (PLGS) in the Outpatient Setting in Type 1 Diabetes (DCLP4)
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 35
- 试验地点
- 9
- 主要终点
- Percent CGM Time in Range 70-180 mg/dL
研究概览
简要总结
The investigators aim to compare the efficacy and safety of an AID system using an adaptive MPC algorithm versus SAP (which may or may not include PLGS; to be referred to as SAP) in people with type 1 diabetes.
详细描述
A randomized crossover trial will compare the efficacy and safety of an automated insulin delivery (AID) study system using an adaptive Model Predictive Control (MPC) algorithm versus SAP (which may or may not include PLGS; to be referred to as SAP) therapy in people with type 1 diabetes for 13 weeks in each arm of the study. A Pilot Phase using the study system for 10-14 days will be conducted prior to the crossover trial.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 —(Adult, Older Adult)
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Clinical diagnosis, based on investigator assessment, of type 1 diabetes for at least one year and using insulin for at least 1 year
- •Using an insulin pump for at least 3 months (which may include use of automated features)
- •Familiarity and use of a carbohydrate ratio for meal boluses
- •Age ≥18.0 years old
- •For females, not currently known to be pregnant. If female and sexually active, must agree to use a form of contraception to prevent pregnancy while a participant in the study. A negative serum or urine pregnancy test will be required for all females of child-bearing potential. Participants who become pregnant will be discontinued from the study. Also, participants who during the study develop and express the intention to become pregnant within the timespan of the study will be discontinued.
- •If using a personal CGM, willingness to use a Dexcom G6 CGM and discontinue personal CGM use during the study
- •Willing not to begin use of, or not to continue use of if currently using, a personal AID (closed loop control) system during the study; note if the system offers an open-loop mode or can be switched to a PLGS mode that is compatible with the Dexcom G6, the system may be used during the study in these modes only
- •Willingness to switch to lispro (Humalog) or aspart (Novolog) if not using already, and to use no other insulin besides lispro (Humalog) or aspart (Novolog) during the study
- •Willingness not to start any new non-insulin glucose-lowering agent during the course of the trial, and not to use Afrezza during the trial
- •Investigator believes that the participant can successfully and safely operate all study devices and is capable of adhering to the protocol
排除标准
- •Use of Afrezza or any non-insulin glucose-lowering agent other than metformin (including GLP-1 agonists, DPP-4 inhibitors, SGLT-2 inhibitors, sulfonylureas) unless participant is willing to discontinue during the trial.
- •Two or more episodes of DKA requiring an emergency room visit or hospitalization in the past 6 months
- •Two or more episodes of severe hypoglycemia with seizure or loss of consciousness in the last 6 months
- •Hemophilia or any other bleeding disorder
- •A medical or other condition that in the opinion of the investigator could create a safety concern for the participant or put the study at risk. History of frequent severe hypoglycemia or history of frequent severe hyperglycemia and/or ketosis, without emergency room visit or hospitalization, due to poor diabetes self-management may be disqualifying per investigator judgment
- •Participation in another pharmaceutical or device trial at the time of enrollment or during the study
结局指标
主要结局
Percent CGM Time in Range 70-180 mg/dL
时间窗: 13 weeks
This results shown is mean percent time in range 70-180 mg/dL.
Non-inferiority for CGM Time <54 mg/dL
时间窗: 13 weeks
Superiority for time in range 70-180 mg/dL and non-inferiority for time \<54 mg/dL measured with CGM will be considered primary endpoints, analyzed using a hierarchical gatekeeping testing procedure
次要结局
- Basal: Bolus Insulin Ratio(13 weeks)
- Total Daily Insulin(13 weeks)
- CGM Time > 180(13 weeks)
- CGM Mean Glucose(13 weeks)
- CGM Time > 250(13 weeks)
- CGM Time < 70(13 weeks)
- CGM Time < 54 (Superiority)(13 weeks)
- CGM Time in Range 70-140 mg/dL(13 weeks)
- Standard Deviation(13 weeks)
- LBGI(13 weeks)
- HbA1c at 13 Weeks(13 weeks)
- Glucose Monitoring Satisfaction Survey (Total Scale)(13 weeks)
- Coefficient of Variation(13 weeks)
- Hypoglycemia Confidence Scale(13 weeks)
- CGM Time < 60(13 weeks)
- CGM Time > 300(13 weeks)
- HBGI(13 weeks)
- Number of Participants With HbA1c <7.0% at 13 Weeks(13 weeks)
- Number of Participants With HbA1c <7.5% at 13 Weeks(3 months)
- Diabetes Distress Scale at 13 Weeks - Total Score(13 weeks)
- INSPIRE Survey Scores - Following Study System Period Only(13 weeks)
- SUS Survey Scores - Following Study System Period(13 weeks)
