NCT04669912

Brief Summary

Lockdown resulting from the COVID-19 pandemic was an unpreceded model of the impact of lifestyle on chronic diseases, especially for adolescents and young adults with type 1 diabetes (T1D) whose lifestyle is known to strongly impact disease management. The investigators aimed to assess changes in self-monitoring and glycemic control in this population before, during, and after the two-month French lockdown. Te investigators hypothesized an improvement in glucose control and glucose sensor usage. The protocol will include all patients with T1D from 13 to 25 years old using a flash glucose monitoring related to the LibreView cloud platform. The primary outcome, evolution of percentage of glucose time in range 70-180 mg/dL (TIR), and secondary outcomes (glucose management indicator GMI, time spent below range TBR, and sensor usage) will be analyzed with a linear mixed-effects regression model.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
77

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Jan 2021

Geographic Reach
1 country

1 active site

Status
completed

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

December 7, 2020

Completed
10 days until next milestone

First Posted

Study publicly available on registry

December 17, 2020

Completed
29 days until next milestone

Study Start

First participant enrolled

January 15, 2021

Completed
7 days until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 22, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 22, 2021

Completed
Last Updated

May 22, 2026

Status Verified

May 1, 2026

Enrollment Period

7 days

First QC Date

December 7, 2020

Last Update Submit

May 21, 2026

Conditions

Keywords

type 1 diabetesadolescentCOVID-19telemedicine

Outcome Measures

Primary Outcomes (3)

  • Changes in percentage of time spent in range 70-180 mg/dL after lockdown compared to before lockdown

    Percentage of time spent in glucose range from 70 to 180 mg/dL over a month (28 days) according to continuous glucose monitoring data collected on Libreview.

    Measure repeated 2 times : month before lockdown (28 days), after lockdown

  • Changes in percentage of time spent in range 70-180 mg/dL during first month of lockdown compared to before lockdown

    Percentage of time spent in glucose range from 70 to 180 mg/dL over a month (28 days) according to continuous glucose monitoring data collected on Libreview.

    Measure repeated 2 times : month before lockdown (28 days), first month of lockdown (28 days)

  • Changes in percentage of time spent in range 70-180 mg/dL during second month of lockdown compared to before lockdown

    Percentage of time spent in glucose range from 70 to 180 mg/dL over a month (28 days) according to continuous glucose monitoring data collected on Libreview.

    Measure repeated 2 times : month before lockdown (28 days), second month of lockdown (28 days)

Secondary Outcomes (8)

  • Evolution of glucose management indicator (GMI) compared to before lockdown.

    Measures repeated 4 times (including 28 days of data for each): month before lockdown (28 days), first month of lockdown (28 days), second month of lockdown (28 days), first month after lockdown (28 days).

  • Evolution of glucose time spent below range <54 mg/dL

    Measure repeated 4 times (including 28 days of data for each): month before lockdown (28 days), first month of lockdown (28 days), second month of lockdown (28 days), first month after lockdown (28 days).

  • Evolution of glucose time spent below range 54 - 70 mg/dL

    Measure repeated 4 times (including 28 days of data for each): month before lockdown (28 days), first month of lockdown (28 days), second month of lockdown (28 days), first month after lockdown (28 days).

  • Evolution of glucose time spent below range 180-250 mg/dL

    Measure repeated 4 times (including 28 days of data for each): month before lockdown (28 days), first month of lockdown (28 days), second month of lockdown (28 days), first month after lockdown (28 days).

  • Evolution of glucose time spent below range > 250 mg/dL

    Measure repeated 4 times (including 28 days of data for each): month before lockdown (28 days), first month of lockdown (28 days), second month of lockdown (28 days), first month after lockdown (28 days).

  • +3 more secondary outcomes

Interventions

Data related to glucose control and sensor usage collected from the Libreview platform

Eligibility Criteria

Age13 Years - 25 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)
Sampling MethodProbability Sample
Study Population

The population will be selected from two university general hospitals of the region of Ile de France (France): Kremlin-Bicetre hospital and Sud-Francilien hospital. The population will be aged from to 13 to 25 years at the beginning of lockdown.

You may qualify if:

  • Type 1 diabetes
  • Age between 13 and 25 years
  • use of a flash glucose monitoring related to the LibreView cloud platform
  • patients follow-up by the diabetes department of Hopital Sud Francilien or the diabetes department of Hôpital Bicêtre.
  • patient informed of the study and not having objected to it.

You may not qualify if:

  • patients out of France during lockdown
  • other type of diabetes
  • Duration of diabetes of less than one year
  • patient aged under 13 years or above 26 years old

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Centre Hospitalier Sud Francilien

Corbeil-Essonnes, France, 91100, France

Location

MeSH Terms

Conditions

Diabetes Mellitus, Type 1COVID-19

Condition Hierarchy (Ancestors)

Diabetes MellitusGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System DiseasesAutoimmune DiseasesImmune System DiseasesPneumonia, ViralPneumoniaRespiratory Tract InfectionsInfectionsVirus DiseasesCoronavirus InfectionsCoronaviridae InfectionsNidovirales InfectionsRNA Virus InfectionsLung DiseasesRespiratory Tract Diseases

Study Officials

  • Alfred PENFORNIS, MD PhD

    Centre Hospitalier Sud Francilien

    PRINCIPAL INVESTIGATOR

Study Design

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

Study Record Dates

First Submitted

December 7, 2020

First Posted

December 17, 2020

Study Start

January 15, 2021

Primary Completion

January 22, 2021

Study Completion

January 22, 2021

Last Updated

May 22, 2026

Record last verified: 2026-05

Data Sharing

IPD Sharing
Will not share

Locations