NCT04749693

Brief Summary

This study will be conducted on human subjects and is observational, prospective and uncontrolled, defined as a category 3 according to the Jardé Law (RIPH3). It is a national and multicentric study. Enrolled patients are Type 1 Diabetes (T1D) patients who receive the DBLG1 System (CE marked medical device) to be treated. Patients have their regular visits with their own clinician. No change from their usual care must and will be done, including trainings and treatment. At the end of the study, patients will keep their system for their usual care and will continue having usual follow-up visits with their clinician. Data related to their glycemia, complications and quality of life will be collected for 1 year from the beginning of their treatment. A comparison with data collected during the 2 weeks of run-in period, prior to the activation of loop mode, is planned. In case the run-in phase lasts longer than 2 weeks, data collected from the two last weeks only will be kept for analysis and comparison. The study is completed when all patients have their "end of study" file completed in the electronic Case Report Form (eCRF).

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
348

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started May 2021

Longer than P75 for all trials

Geographic Reach
1 country

20 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

February 2, 2021

Completed
9 days until next milestone

First Posted

Study publicly available on registry

February 11, 2021

Completed
3 months until next milestone

Study Start

First participant enrolled

May 17, 2021

Completed
4.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2025

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2026

Completed
Last Updated

May 7, 2024

Status Verified

May 1, 2024

Enrollment Period

4.1 years

First QC Date

February 2, 2021

Last Update Submit

May 6, 2024

Conditions

Keywords

Type 1 DiabetesHbA1c > 8%Closed loop systeminsulin pumpAlgorithmReal life

Outcome Measures

Primary Outcomes (1)

  • time in 70 - 180 mg/dL glycemic range

    Improvement of the time in glycemic range 70 - 180 mg/dL, in percentage, on 24hours and nighttime

    through study completion, an average of 1 year

Secondary Outcomes (13)

  • HbA1c HbA1c HbA1c

    at the beginning and at the end of the study (1 year between each value)

  • mean CGM

    through study completion, an average of 1 year

  • time in 70 - 140 mg/dL glycemic range

    through study completion, an average of 1 year

  • time in hypoglycemia

    through study completion, an average of 1 year

  • time in hyperglycemia

    through study completion, an average of 1 year

  • +8 more secondary outcomes

Study Arms (1)

Patient with HbA1c >= 8% despite the use of insulin pump and frequent glycemic control

only group included in the study

Device: DBLG1 System

Interventions

Use of DBLG1 System in real life condition

Patient with HbA1c >= 8% despite the use of insulin pump and frequent glycemic control

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Adults with type 1 diabetes equal or more than 18 years old, with Hb1Ac ≥ 8%

You may qualify if:

  • patients with type 1 diabetes;
  • patients who are at least 18 years old;
  • patients total daily dose required must be less than 90 units (U);
  • patients accepting to be treated with 100 U/mL rapid-acting insulin analog
  • patients having a HbA1c ≥ 8% despite of the use of a pump for at least 6 months
  • patients performing glucose self-monitoring several times ( ≥ 4) a day
  • patient accepting the technology
  • patients agreeing to use the system with activated loop mode during at least 75% of the
  • total time of use, this will be analyzed after 1 year of use.
  • patients must be affiliated to any kind of social security

You may not qualify if:

  • patients receiving a total daily dose of insulin lower than 8 U;
  • patients suffering from a serious illness or having a treatment that might significantly impair diabetes physiology (iSGLT2, steroids, metformin), i.e. glucose-insulin interactions, that might interfere with the medical device (for example treatment by steroids with variable dosage during the study period);
  • patients having severe uncorrected problems of hearing and/or visual acuity preventing proper use of DBLG1 System;
  • patients unable to understand and perform all of the instructions regarding the devices and the clinical investigation provided by Diabeloop.
  • patients planning to perform during the year of study repeated magnetic resonance imaging (MRI), computed tomography (CT) scan, or high-frequency electrical heat (diathermy) treatment. The G6 has not been tested in those situations. The magnetic fields and heat could damage the components of the Dexcom G6, which may cause it to display inaccurate sensor glucose readings (readings) or may prevent alerts. Without G6 readings or alarm/alert notifications, patients might be exposed to severe low or high glucose events;
  • patients who are unwilling or unable to maintain contact with the healthcare professional;
  • patients willing to use any insulin that is not 100 U/mL rapid-acting insulin analog with the system (for example regular insulin; long-acting insulin analog; 200 U/mL rapid-acting insulin analog)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (20)

Hôpital Avicenne APHP

Bobigny, 93000, France

NOT YET RECRUITING

Hôpital de la cavale blanche

Brest, 29200, France

NOT YET RECRUITING

CHU Caen

Caen, 14000, France

RECRUITING

Centre Hospitalier Sud Francilien

Corbeil-Essonnes, 91100, France

NOT YET RECRUITING

CHU Bocage Central

Dijon, 21079, France

RECRUITING

Hôpital Simone Veil

Eaubonne, 95600, France

NOT YET RECRUITING

CHU Grenoble

Grenoble, 38000, France

RECRUITING

Groupe Hospitalier La Rochelle - Ré - Aunis

La Rochelle, 17019, France

RECRUITING

CHU Lille

Lille, 59037, France

NOT YET RECRUITING

Diab-e-Care

Lyon, 69008, France

NOT YET RECRUITING

Hôpital Européen

Marseille, 13003, France

NOT YET RECRUITING

Hôpital la conception, pole ENDO

Marseille, 13385, France

NOT YET RECRUITING

hôpital Nord Laennec

Nantes, 44093, France

RECRUITING

Lariboisière - Fernand Widal APHP

Paris, 75010, France

NOT YET RECRUITING

Hôpital Bichet Claude Bernard - APHP

Paris, 75018, France

NOT YET RECRUITING

Clinique Princess

Pau, 64000, France

NOT YET RECRUITING

CHU Reims

Reims, 51100, France

RECRUITING

Hôpital Pontchaillou

Rennes, 35000, France

RECRUITING

Hôpital civil de Strasbourg

Strasbourg, 67000, France

RECRUITING

Hôpital de Rangueil

Toulouse, 31400, France

NOT YET RECRUITING

MeSH Terms

Conditions

Diabetes Mellitus, Type 1

Condition Hierarchy (Ancestors)

Diabetes MellitusGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System DiseasesAutoimmune DiseasesImmune System Diseases

Study Officials

  • Pauline Schaepelynck

    APHM Hôpital Sud Sainte Marguerite

    PRINCIPAL INVESTIGATOR
  • Lucy Chaillous

    Nantes University Hospital

    PRINCIPAL INVESTIGATOR
  • Hélène Hanaire

    University Hospital, Toulouse

    PRINCIPAL INVESTIGATOR
  • Sandrine Lablanche

    University Hospital, Grenoble

    PRINCIPAL INVESTIGATOR
  • Alfred Penfornis

    CH Sud Francilien

    PRINCIPAL INVESTIGATOR
  • Yves Reznik

    CHU CAEN

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Erik Huneker

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 2, 2021

First Posted

February 11, 2021

Study Start

May 17, 2021

Primary Completion

July 1, 2025

Study Completion

January 1, 2026

Last Updated

May 7, 2024

Record last verified: 2024-05

Data Sharing

IPD Sharing
Will not share

Locations