Status:

COMPLETED

Diabeloop for Highly Unstable Type 1 Diabetes

Lead Sponsor:

Centre d'Etudes et de Recherche pour l'Intensification du Traitement du Diabète

Conditions:

Diabetes Mellitus, Type 1

Diabetes Mellitus, Brittle

Eligibility:

All Genders

22+ years

Phase:

NA

Brief Summary

Feasibility study, comparing experimental treatment (DBLHU closed-loop system) with reference treatment (Low Glucose Predictive Suspend system) in 7 patients going through a series of N-of-1 trials. E...

Eligibility Criteria

Inclusion

  • Subject (aged 22 or more) with Type 1 diabetes for at least 5 years and confirmed C peptide negative
  • Treated with continuous subcutaneous insulin infusion (CSII) for ≥ 6 months,
  • Trained to carbohydrate counting/flexible insulin therapy,
  • Subject that had experienced, despite optimal diabetes management and prior to any equipment with Smartguard technology, glucose instability as defined by at least 2 of the following criteria which would have led to eligibility for pancreatic islet transplantation:
  • occurrence of at least 1 severe hypoglycemic episode during the past 12 months (need for third party),
  • occurrence of ketoacidosis (hospitalization in ICU) without explanation
  • Impaired awareness of hypoglycemia (Clark Score ≥ 4; Gold Score \> 4)
  • glucose levels: standard deviation \> 50% of the arithmetic mean value on glucose meter or \> 40 mg/dl on CGM on a 14-day recording
  • glucose levels: MAGE (mean amplitude of glucose excursions) index \> 60 mg/dl
  • glucose levels: coefficient of variation (CV) \> 36%
  • with persisting extreme glucose variability despite optimal medical care
  • with contra-indication or no agreement to undertake pancreatic islet transplantation or pancreas transplantation.
  • Subject willing to wear the DBLHU system continuously throughout the study

Exclusion

  • patient with type 2 diabetes
  • age \< 22 years old
  • patient without any social or familial support able to intervene in case of severe hypoglycemic event
  • any permanent and severe condition able to interact with the normal course of the study
  • patient with insulin-resistance defined by insulin requirements \> 1.5U/kg/d
  • patient with a daily dose of insulin required greater than 90 units
  • patient receiving a total daily dose of insulin less than 8 U
  • use of any insulin that is not 100 U/mL fast-acting insulin analog
  • patient suffering from a serious illness or a treatment that might significantly impair diabetes physiology, i.e. glucose-insulin interactions, that might interfere with the medical device (for example irregular treatment of steroids)
  • patient having severe problems of uncorrected hearing and/or visual acuity
  • patient who is unable to understand and perform all the instructions provided by Diabeloop SA
  • patient not willing to perform ≥4 finger stick blood glucose measurements daily
  • patients that have frequent exposure to magnetic resonance imaging (MRI), computed tomography (CT) scan, or high-frequency electrical heat (diathermy) treatment.
  • patient who has had a pancreatectomy or who has pancreatic malfunctions
  • patient having severely altered renal function (Creatinine clearance \< 30ml/min)
  • patient on dialysis
  • pregnancy or breast-feeding patient, or project of pregnancy during the next 6 months
  • lack of effective contraception in women of childbearing potential
  • all conditions excluding participation to clinical research as defined in France

Key Trial Info

Start Date :

September 3 2019

Trial Type :

INTERVENTIONAL

Allocation :

ACTUAL

End Date :

March 22 2021

Estimated Enrollment :

7 Patients enrolled

Trial Details

Trial ID

NCT04042207

Start Date

September 3 2019

End Date

March 22 2021

Last Update

May 10 2021

Active Locations (2)

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Page 1 of 1 (2 locations)

1

Grenoble Alpes University Hospital

Grenoble, France, 38700

2

Lille University Hospital

Lille, France, 59037