Validation of Algorithms for Basal Insulin Rate Reductions in Type 1 Diabetic Patients Practising Physical Activity in Real Life Conditions

NCT ID: NCT02521675

Last Updated: 2021-04-08

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

50 participants

Study Classification

INTERVENTIONAL

Study Start Date

2016-01-31

Study Completion Date

2020-03-31

Brief Summary

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There is no specific recommendations on the adjustments of the insulin treatment in the event of physical activity (PA) in T1D patients treated on insulin pump therapy. Patients often prefer additional carbohydrates intake rather than the reduction of their insulin doses because of the lack of specific algorithms.

The DIABRASPORT 2 study aims to demonstrate that using algorithms DIABRASPORT, during a week of physical activity (PA), the incidence of hypoglycaemia is not different from that obtained during a week of rest without physical activity.

It is a multi-center European, controlled, randomized, cross-over, study, in 100 T1D patients practicing an occasional AP.

25 centers involved in this study.

After agreeing to participate in the study, patients will read the information leaflet, ask questions to the investigator physician and they will date and sign the consent form. The investigator physician will do the same.

They will be then drawn randomly via the electronic CRF (eCRF) to determine the order in which they will realize the rest vs DIABRASPORT sessions.

The study will take place in 5 weeks:

During the weeks Baseline and Diabrasport, patients will have to make 3 physical activity of 30 to 60 minutes separated by at least 24 hours:

* moderate activity 3 hours after lunch
* intense activity 3 hours after lunch
* activity moderate 90 min after lunch They will use their usual algorithms (Cho intake or adjustment of the dose of insulin) during the week Baseline and they will use the Diabrasport algorithm during the week Diabrasport.

Patients will be equipped with a holter Glycemic iPro2, Medtronic, whose data are hidden.

During the week of rest, patients should do no physical activity during the week. They will be equipped with the Glycemic holter.

Patients will have to fill a food survey the days they practice PA. Between each period, the patient must respect a period of wash-out for one week at least, during which he will be asked to not practice physical activity.

Validation of algorithms simple, easy to implement, adaptable by patients, could help to improve balance metabolic and practice of sport among the T1D.

Detailed Description

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Conditions

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Diabetes Mellitus, Type I Adjustment of Basal Insulin Flow Rate During Physical Activity Adjustment of Prandial Insulin in Case of Physical Activity

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

NONE

Study Groups

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Diabrasport then Rest

Between each period, the patient should respect a wash-out period of at least one week, during which they will be asked not to practice physical activity.

Group Type OTHER

Usual algorithm

Intervention Type BEHAVIORAL

The patient will be fitted with a CGMS (continuous glucose monitoring system) (data not shown) and it will be given the booklet to collect events + food survey

The patient goes home and he must perform 3 physical activities during the week (30-60 minutes) using its usual algorithms (glucose administration or adaptation of the BR), in the afternoon, and spacing them at least 24 hours :

* Moderate activity 3 hours after lunch
* Intense activity 3 hours after lunch
* Moderate activity 90 min after lunch These activities should not exceed 1 hour in wherever possible

Diabrasport algorithm

Intervention Type BEHAVIORAL

The patient will be fitted with a CGMS (data not shown) and it will be given the booklet to collect events + food survey

The patient goes home and he must perform 3 physical activities during the week (identical to those carried out during the week "test algorithms usual" and during comparable periods) using DIABRASPORT algorithms, the afternoon and in the spacing at least 24 hours:

* Moderate activity 3 hours after lunch
* Intense activity 3 hours after lunch
* Moderate activity 90min after lunch These activities shall not exceed one hour

Rest

Intervention Type BEHAVIORAL

The patient will be fitted with a CGMS (data not shown) and it will be given the booklet to collect events + food survey.

The patient goes home and he will not perform any physical activity during the week

Holter Glycemic Ipro2, Medtronic

Intervention Type DEVICE

Rest then Diabrasport

Between each period, the patient should respect a wash-out period of at least one week, during which they will be asked not to practice physical activity.

Group Type OTHER

Usual algorithm

Intervention Type BEHAVIORAL

The patient will be fitted with a CGMS (continuous glucose monitoring system) (data not shown) and it will be given the booklet to collect events + food survey

The patient goes home and he must perform 3 physical activities during the week (30-60 minutes) using its usual algorithms (glucose administration or adaptation of the BR), in the afternoon, and spacing them at least 24 hours :

* Moderate activity 3 hours after lunch
* Intense activity 3 hours after lunch
* Moderate activity 90 min after lunch These activities should not exceed 1 hour in wherever possible

Diabrasport algorithm

Intervention Type BEHAVIORAL

The patient will be fitted with a CGMS (data not shown) and it will be given the booklet to collect events + food survey

The patient goes home and he must perform 3 physical activities during the week (identical to those carried out during the week "test algorithms usual" and during comparable periods) using DIABRASPORT algorithms, the afternoon and in the spacing at least 24 hours:

* Moderate activity 3 hours after lunch
* Intense activity 3 hours after lunch
* Moderate activity 90min after lunch These activities shall not exceed one hour

Rest

Intervention Type BEHAVIORAL

The patient will be fitted with a CGMS (data not shown) and it will be given the booklet to collect events + food survey.

The patient goes home and he will not perform any physical activity during the week

Holter Glycemic Ipro2, Medtronic

Intervention Type DEVICE

Interventions

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Usual algorithm

The patient will be fitted with a CGMS (continuous glucose monitoring system) (data not shown) and it will be given the booklet to collect events + food survey

The patient goes home and he must perform 3 physical activities during the week (30-60 minutes) using its usual algorithms (glucose administration or adaptation of the BR), in the afternoon, and spacing them at least 24 hours :

* Moderate activity 3 hours after lunch
* Intense activity 3 hours after lunch
* Moderate activity 90 min after lunch These activities should not exceed 1 hour in wherever possible

Intervention Type BEHAVIORAL

Diabrasport algorithm

The patient will be fitted with a CGMS (data not shown) and it will be given the booklet to collect events + food survey

The patient goes home and he must perform 3 physical activities during the week (identical to those carried out during the week "test algorithms usual" and during comparable periods) using DIABRASPORT algorithms, the afternoon and in the spacing at least 24 hours:

* Moderate activity 3 hours after lunch
* Intense activity 3 hours after lunch
* Moderate activity 90min after lunch These activities shall not exceed one hour

Intervention Type BEHAVIORAL

Rest

The patient will be fitted with a CGMS (data not shown) and it will be given the booklet to collect events + food survey.

The patient goes home and he will not perform any physical activity during the week

Intervention Type BEHAVIORAL

Holter Glycemic Ipro2, Medtronic

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Patient aged over 18 years
* Patient with type 1 diabetes for at least 1 year
* Patient receiving insulin pump under basal-prandial regimen for at least 3 months
* Patient practicing functional insulin therapy, or using a fixed plane defined food
* Patients with a stable basal rate for at least 1 week
* Patient practicing regular physical activity and reproducible identically
* Patient with HbA1c older than 3 months between 6.5% and 9.5% (HbA1c ≤ 6.5% ≤ 9.5%)
* Patients with BMI ≤ 35
* Patient who agreed to participate in the study and who signed an informed consent
* Patient not participating in another protocol
* Patient covered by social security

Exclusion Criteria

* Patients with a history of severe hypoglycemia without accidental cause in the 6 months preceding the entry in the protocol
* Patient not receiving its hypoglycaemia below the threshold of 0.5 g / L
* Patient with perforating foot ulcer or a known history of heart disease or obliterative arteriopathy of the lower limbs, or a history of cerebrovascular accident, or ongoing proliferative retinopathy or renal failure
* Patient with poorly controlled hypertension
* Pregnant woman
* Patients deprived of liberty by judicial or administrative decision, patients placed under legal guardianship
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Hôpital Universitaire

Angers, , France

Site Status

Hôpital Henri Duffaut

Avignon, , France

Site Status

Hôpital Jean Minjoz

Besançon, , France

Site Status

Hôpital Universitaire

Brest, , France

Site Status

Centre Hospitalier Sud-Francilien

Corbeil-Essonnes, , France

Site Status

Centre Hospitalier Louis Pasteur

Dole, , France

Site Status

Centre Hospitalier

Douai, , France

Site Status

Hôpital Universitaire

Grenoble, , France

Site Status

Fondation Hôtel Dieu du Creusot

Le Creusot, , France

Site Status

Centre Hospitalier Régional Universitaire

Lille, , France

Site Status

Centre Hospitalier Universitaire

Lyon, , France

Site Status

Hôpital de la Conception

Marseille, , France

Site Status

Mérignac, , France

Site Status

Centre Hospitalier Universitaire

Rennes, , France

Site Status

Centre Hospitalier

Saint-Dié, , France

Site Status

Centre Hospitalier Régional Universitaire

Strasbourg, , France

Site Status

Hôpital Jean Bernard

Valenciennes, , France

Site Status

Countries

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France

Other Identifiers

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2015-A00709-40

Identifier Type: -

Identifier Source: org_study_id

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