- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02627911
Diabeloop WP6.2 : Crossover Evaluation of Glycemic Control (WP6-2)
November 18, 2016 updated by: Centre d'Etudes et de Recherche pour l'Intensification du Traitement du Diabète
DIABELOOP WP6.2 : Crossover Evaluation of Glycemic Control Provided for Three Days by the Artificial Pancreas Diabeloop Compared to Conventional Treatment by External Insulin Pump in Patients With Type 1 Diabetes in Sedentary Position, Outstanding Meals and Physical Activity .
The study will be conducted in crossover trial, with two 72-hour hospitalization separated by a period Wash-out of at least one week. Each hospitalization is a period of treatment. According to randomization, patients will be provided with either Diabeloop system or the usual system.
In both treatment periods:
- patients in a situation of sedentarity or physical activity, will be equipped with ActiGraph (measuring motricity) and a ActiHeart ( measuring heart rate)
- meals and physical activities will be similar in both periods
- the same blood glucose meter will be used throughout the duration of the study.
- the capillary blood glucose will be performed : before bolus and 2 hours after a meal, before exercise, in case of hypo or hyper-glycemic episodes and when the patient and / or investigator deem it necessary.
Study Overview
Status
Completed
Conditions
Study Type
Interventional
Enrollment (Actual)
36
Phase
- Phase 2
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
-
-
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Besançon, France, 25030
- Hôpital Jean Minjoz
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Caen, France, 14033
- Centre Hospitalier Universitaire
-
Corbeil-Essonnes, France, 91100
- Centre Hospitalier Sud-Francilien
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Grenoble, France, 38700
- Centre Hospitalier Universitaire
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Marseille, France, 13000
- Centre Hospitalier Universitaire
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Montpellier, France, 34295
- Centre Hospitalier Universitaire
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Nancy, France, 54000
- Centre Hospitalier Universitaire
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Strasbourg, France, 67000
- Centre Hospitalier Universitaire
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Toulouse, France, 31400
- Centre Hospitalier Universitaire
-
-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years and older (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- Type 1 diabetic patient for at least one year, treated by external insulin pump for at least 6 months
- Patient with 7.5 % < HbA1c < 9.5 %
- Patient practicing functional insulin therapy
- In the situation of physical activity , the patient must be able to perform one or more daily physical activities for 3 days in each treatment session
- Patient aged over 18 years
- Patient affiliated to Social Security
- Patient who agreed to participate in the study and who signed an informed consent
Exclusion Criteria:
- Type 2 diabetic patients
- Any serious illness that may impair study participation*
- Patient with insulin resistance defined in insulin requirements > 1.5 U / kg / day
- Patient no longer sensing his hypoglycemia
- Patient enjoying a measure of legal protection
- Pregnant woman or likely to be
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Other: Usual System (open-loop)
In open loop, the patient will be provided with its usual pump and a CGM.
To estimate rest and physical activity in patients being sedentary situation ( Centers : Caen, Nancy & Strasbourg) or in situations of physical activity ( Centers : CHSF Marseille and Besancon ) , the usual system will be complemented by an accelerometer " ActiGraph " and a " ActiHeart " heart rate monitor.
|
Monitoring and measurement of physical activity
Calibrated meals for all patients and outstanding dinners for patients being in outstanding meals situation (Centers : Grenoble, Toulouse, Montpellier)
|
Experimental: DIABELOOP System (closed-loop)
In the closed loop, the patient's pump will be replaced by the Diabeloop system consisting of insulin pump Cellnovo driven by remote control augmented by Diabeloop software and connected to the CGM.
|
Monitoring and measurement of physical activity
Calibrated meals for all patients and outstanding dinners for patients being in outstanding meals situation (Centers : Grenoble, Toulouse, Montpellier)
Insulin delivery
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Percentage of time spent in the tight glycemic control area 80-140 mg / dl during the night, continuously measured for 3 days with CGM
Time Frame: during the night for 3 days for each period
|
during the night for 3 days for each period
|
Secondary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Percentage of time spent in the area glycemic reference 70-180 mg / dl during the night measured continuously for 3 days with CGM
Time Frame: during the night for 3 days for each period
|
during the night for 3 days for each period
|
Percentage of time spent in the glycemic range 70-180 mg / dl at d3 versus d1 during closed-loop period comparing with d3 versus d1 during open-loop period
Time Frame: during 3 days for each period
|
during 3 days for each period
|
Measurement of time spent in blood glucose <70 mg / dl and blood glucose > 180 mg / dl
Time Frame: during 3 days for each period
|
during 3 days for each period
|
Average blood glucose levels throughout the period and sub- periods: sedentarity, prandial and physical activity.
Time Frame: during 3 days for each period
|
during 3 days for each period
|
Calculated risks of hypo- and hyperglycemia ( LBGI , HBGI ) throughout the period and sub- periods: physical inactivity, prandial and physical activity
Time Frame: during 3 days for each period
|
during 3 days for each period
|
Measuring the oral carbohydrates intake
Time Frame: during 3 days for each period
|
during 3 days for each period
|
Number of hypoglycemic events , defined by any threshold crossing 70 mg / dL ( 3.9 mml / L) , and < 54 mg / dL ( 3 mmol / l ) measured by the CGM
Time Frame: during 3 days for each period
|
during 3 days for each period
|
Total supplies of insulin during tests (total unit of insulin)
Time Frame: during 3 days for each period
|
during 3 days for each period
|
Average peak postprandial glycemic according meals and delays occurred
Time Frame: during 3 days for each period
|
during 3 days for each period
|
Number of technical problems causing interruptions of the closed loop
Time Frame: during 3 days for the closed loop period
|
during 3 days for the closed loop period
|
Comparison of postprandial blood glucose sensor 2h , 3h and 4h and AUC in identical conditions of meals, to evaluate the efficacy and safety ( time spent in hypoglycemia, hyperglycemia and euglycemia )
Time Frame: during 3 days for each period
|
during 3 days for each period
|
Nadir glycemic means after physical activity and time of occurrence.
Time Frame: during 3 days for each period
|
during 3 days for each period
|
Measurement of AUC during physical activity , the two hours, then to lunch time , during dinner and throughout the night
Time Frame: during 3 days for each period
|
during 3 days for each period
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start
November 1, 2015
Primary Completion (Actual)
August 1, 2016
Study Completion (Actual)
November 1, 2016
Study Registration Dates
First Submitted
December 7, 2015
First Submitted That Met QC Criteria
December 9, 2015
First Posted (Estimate)
December 11, 2015
Study Record Updates
Last Update Posted (Estimate)
November 21, 2016
Last Update Submitted That Met QC Criteria
November 18, 2016
Last Verified
November 1, 2016
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 2015-A01294-45
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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