NCT03528226

Brief Summary

Endothelial dysfunction and vasoreactivity disorders are early subclinical complications of type 1 diabetes (T1D). In a preventive setting, in T1D patients still free of complications, the research of non-pharmacological interventions to improve endothelial function appears fundamental. In this randomized controlled trial, the effects of exercise training on endothelial function will be evaluated in T1D adults. Secondary objectives are to evaluate the exercise training effects on the micro and macrovascular function and exercise-induced tissue vasoreactivity and their possible neurometabolic consequences. An improvement in vascular function, particularly endothelium-dependent, as well as in neurometabolic profile, through this non-pharmacological strategy is expected

Trial Health

57
Monitor

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
34

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Nov 2019

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

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

May 3, 2018

Completed
14 days until next milestone

First Posted

Study publicly available on registry

May 17, 2018

Completed
1.5 years until next milestone

Study Start

First participant enrolled

November 12, 2019

Completed
6.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2026

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2026

Completed
Last Updated

December 23, 2025

Status Verified

December 1, 2025

Enrollment Period

6.1 years

First QC Date

May 3, 2018

Last Update Submit

December 16, 2025

Conditions

Keywords

Type 1 diabetesendothelial functionexercise trainingphysical activity

Outcome Measures

Primary Outcomes (1)

  • Change in percent flow-mediated dilation (FMD) values

    between baseline and at 4 months

Secondary Outcomes (8)

  • Change the vascular responses

    at baseline , at 2 months , at 4 months

  • Change the vascular responses

    at baseline , at 2 months , at 4 months

  • Change the vascular responses

    at baseline , at 2 months , at 4 months

  • Change in percent flow-mediated dilation (FMD) values

    between baseline and at 2 months

  • change the maximum oxygen consumption ( VO2max)

    at baseline , at 2 months , at 4 months

  • +3 more secondary outcomes

Study Arms (2)

Exercise Training

EXPERIMENTAL
Behavioral: Exercise Training Procedure

Control

OTHER
Behavioral: Normal life procedure

Interventions

Exercise training: 3 sessions - 2 supervised and 1 unsupervised - per week of 30-60 min at 65% - 80% of maximum heart rate (4 months)

Exercise Training

No supervised exercise training during the 4 month period.

Control

Eligibility Criteria

Age18 Years - 50 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Covered by social security
  • With a T1Diabete, diagnosed for at least 1 year, and free from macrovascular and microvascular diabetic complications.

You may not qualify if:

  • type 1 diabetes diagnoses for less than 1 year
  • MODY diabetes, mitochondrial diabetes or type 2 diabetes
  • presence of macrovascular and/or microvascular diabetic complications (retinopathy, nephropathy, neuropathy ,…)
  • Obesity (Body Mass Index \> 30 kg/m²
  • Smokers
  • Hypertension
  • Disabling painful discomfort for trunk, upper or lower limb movements
  • Active chronic disease or in remission (excluding type 1 diabetes)
  • Head trauma in the past

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hop Claude Huriez Chu Lille

Lille, 59037, France

RECRUITING

MeSH Terms

Conditions

Diabetes Mellitus, Type 1Motor Activity

Condition Hierarchy (Ancestors)

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

Study Officials

  • Pierre Fontaine, MD,Phd

    University Hospital, Lille

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Pierre Fontaine, MD,PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
HEALTH SERVICES RESEARCH
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 3, 2018

First Posted

May 17, 2018

Study Start

November 12, 2019

Primary Completion

January 1, 2026

Study Completion

January 1, 2026

Last Updated

December 23, 2025

Record last verified: 2025-12

Locations