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Carbohydrate-based Strategies to Prevent Exercise-induced Hypoglycemia

8 juin 2020 mis à jour par: Rémi Rabasa-Lhoret, Institut de Recherches Cliniques de Montreal

Comparison of Two Carbohydrate Intake Strategies to Improve Glucose Control During Exercise in Adolescents and Adults With Type 1 Diabetes

To prevent hypoglycemia during prolonged exercise (>30 minutes), additional carbohydrate intake is frequently required. Carbohydrate intake required will vary with insulin regimens, timing and type of exercise as well as starting blood glucose level. In addition to the amount of carbohydrate ingested, the timing of carbohydrate intake could also have an impact on glucose control during exercise. Therefore, the objective of this study will be to compare the efficacy of two snacking strategies to maintain glucose levels in the target range during an exercise period in adolescents and adults with type 1 diabetes: 1) a snack containing ~0.5g of carbohydrates per kilogram of body weight - rounded to the nearest 5g - given 5 minutes before exercise; 2) a snack containing ~0.5g of carbohydrates per kilogram of body weight - rounded to the nearest 5g - distributed this way: ~40% given 5 minutes before exercise, ~30% after 20 minutes of exercise and the last ~30% after 40 minutes of exercise.

Aperçu de l'étude

Statut

Complété

Les conditions

Intervention / Traitement

Type d'étude

Interventionnel

Inscription (Réel)

37

Phase

  • N'est pas applicable

Contacts et emplacements

Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.

Lieux d'étude

  • Canada
    • Quebec
      • Montreal, Quebec, Canada
        • Institut de recherches cliniques de Montreal

Critères de participation

Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.

Critère d'éligibilité

Âges éligibles pour étudier

14 ans et plus (Enfant, Adulte, Adulte plus âgé)

Accepte les volontaires sains

Non

Sexes éligibles pour l'étude

Tout

La description

Inclusion Criteria:

  1. Males and females ≥ 14 years of old.
  2. Clinical diagnosis of type 1 diabetes for at least one year.
  3. Last (less than 3 months) HbA1c ≤ 10%.
  4. Patients using multiple daily injections with basal-bolus insulin regimen.

Exclusion Criteria:

  1. Clinically significant microvascular complications: nephropathy (estimated glomerular filtration rate below 40 ml/min), neuropathy (especially diagnosed gastroparesis) or severe proliferative retinopathy as judged by the investigator.
  2. Recent (< 3 months) acute macrovascular event e.g. acute coronary syndrome or cardiac surgery.
  3. Abnormal blood panel and/or anemia.
  4. Ongoing pregnancy.
  5. Severe hypoglycemic episode within two weeks of screening.
  6. Other serious medical illness likely to interfere with study participation or with the ability to complete the exercise periods by the judgment of the investigator (e.g. orthopedic limitation).
  7. Treatment with CSII (Continuous Subcutaneous Insulin Infusion) "insulin pump therapy".

Plan d'étude

Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.

Comment l'étude est-elle conçue ?

Détails de conception

  • Objectif principal: Traitement
  • Répartition: Randomisé
  • Modèle interventionnel: Affectation croisée
  • Masquage: Aucun (étiquette ouverte)

Armes et Interventions

Groupe de participants / Bras
Intervention / Traitement
Comparateur actif: Full snack given before exercise
A snack containing ~0.5g of carbohydrates per kilogram of body weight will be given 5 minutes before exercise
Autre: Exercise
Participants will be admitted at IRCM at 14:00. At 15:30, participants will performed a 60-minute exercise on the ergocycle at 60% of VO2 peak (moderate intensity). During exercise, capillary glucose levels will be measured every 10 minutes. At 16:30, the exercise will be completed and capillary glucose levels will be monitored every 20 minutes for 1 hour. At 17:30, the participant will be discharged.
Autre: Snack
Full snack or Distributed snack
Comparateur actif: Distributed snack over exercise period
A snack containing ~0.5g of carbohydrates per kilogram of body weight distributed this way will be given: ~40% given 5 minutes before exercise, ~30% after 20 minutes of exercise and the last ~30% after 40 minutes of exercise.
Autre: Exercise
Participants will be admitted at IRCM at 14:00. At 15:30, participants will performed a 60-minute exercise on the ergocycle at 60% of VO2 peak (moderate intensity). During exercise, capillary glucose levels will be measured every 10 minutes. At 16:30, the exercise will be completed and capillary glucose levels will be monitored every 20 minutes for 1 hour. At 17:30, the participant will be discharged.
Autre: Snack
Full snack or Distributed snack

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
Percentage of time of capillary glucose levels spent between 4-10 mmol/L
Délai: This outcome will be measured over 120 minutes
This time frame corresponds to the exercise period and the 1 hour following it
This outcome will be measured over 120 minutes

Mesures de résultats secondaires

Mesure des résultats
Description de la mesure
Délai
Percentage of time of sensor glucose levels spent between 4-10 mmol/L
Délai: This outcome will be measured for the exercise period only (60 minutes) and for the exercise period and the hour following the exercise (120 minutes)
This outcome will be measured for the exercise period only (60 minutes) and for the exercise period and the hour following the exercise (120 minutes)
Percentage of time of glucose levels spent below 4 mmol/L
Délai: This outcome will be measured for the exercise period only (60 minutes) and for the exercise period and the hour following the exercise (120 minutes)
This outcome will be measured for the exercise period only (60 minutes) and for the exercise period and the hour following the exercise (120 minutes)
Decrease in glucose levels
Délai: This outcome will be measured for the exercise period only (60 minutes) and for the exercise period and the hour following the exercise (120 minutes)
Difference between glucose level at the start of the exercise and the lowest glucose level from the start of the exercise until 1) the end of the exercise and 2) 1 hour after the end of the exercise.
This outcome will be measured for the exercise period only (60 minutes) and for the exercise period and the hour following the exercise (120 minutes)
Increase in glucose level
Délai: This outcome will be measured for the exercise period only (60 minutes) and for the exercise period and the hour following the exercise (120 minutes)
Difference between glucose level at the start of the exercise and the highest glucose level from the start of the exercise until 1) the end of the exercise and 2) 1 hour after the end of the exercise.
This outcome will be measured for the exercise period only (60 minutes) and for the exercise period and the hour following the exercise (120 minutes)
Number of participants with an exercise-induced hypoglycemia below 4 mmol/L
Délai: This outcome will be measured for the exercise period only (60 minutes) and for the exercise period and the hour following the exercise (120 minutes)
This outcome will be measured for the exercise period only (60 minutes) and for the exercise period and the hour following the exercise (120 minutes)
Number of participants with an exercise-induced hypoglycemia below 3.5 mmol/L
Délai: This outcome will be measured for the exercise period only (60 minutes) and for the exercise period and the hour following the exercise (120 minutes)
This outcome will be measured for the exercise period only (60 minutes) and for the exercise period and the hour following the exercise (120 minutes)
Number of participants requiring an oral treatment for hypoglycemia
Délai: This outcome will be measured for the exercise period only (60 minutes) and for the exercise period and the hour following the exercise (120 minutes)
This outcome will be measured for the exercise period only (60 minutes) and for the exercise period and the hour following the exercise (120 minutes)
Total number of hypoglycemia episodes requiring treatment
Délai: This outcome will be measured for the exercise period only (60 minutes) and for the exercise period and the hour following the exercise (120 minutes)
This outcome will be measured for the exercise period only (60 minutes) and for the exercise period and the hour following the exercise (120 minutes)
Percentage of time of glucose levels spent above 10 mmol/L
Délai: This outcome will be measured for the exercise period only (60 minutes) and for the exercise period and the hour following the exercise (120 minutes)
This outcome will be measured for the exercise period only (60 minutes) and for the exercise period and the hour following the exercise (120 minutes)
Mean time (minutes) to the first hypoglycemic event
Délai: This outcome will be measured for the exercise period only (60 minutes)
This outcome will be measured for the exercise period only (60 minutes)
Mean glucose levels
Délai: This outcome will be measured for the exercise period only (60 minutes) and for the exercise period and the hour following the exercise (120 minutes)
This outcome will be measured for the exercise period only (60 minutes) and for the exercise period and the hour following the exercise (120 minutes)
Standard deviation of glucose levels
Délai: This outcome will be measured for the exercise period only (60 minutes) and for the exercise period and the hour following the exercise (120 minutes)
This outcome will be measured for the exercise period only (60 minutes) and for the exercise period and the hour following the exercise (120 minutes)
Percentage of time of glucose levels between 4 and 10 mmol/L
Délai: From the end of the exercise period to dinner time.
Dinner time will be up to the patient.
From the end of the exercise period to dinner time.
Percentage of time of glucose levels between 4 and 10 mmol/L
Délai: From the end of the exercise period to midnight (7.5 hours)
From the end of the exercise period to midnight (7.5 hours)
Percentage of time of glucose levels between 4 and 10 mmol/L
Délai: From midnight to 6:00 next morning (6 hours)
From midnight to 6:00 next morning (6 hours)
Percentage of time of glucose levels between 4 and 10 mmol/L
Délai: From the end of the exercise period to 6:00 next morning (13.5 hours)
From the end of the exercise period to 6:00 next morning (13.5 hours)
Percentage of time of glucose levels spent below 4 mmol/L
Délai: From the end of the exercise period to dinner time
Dinner time will be up to the patient.
From the end of the exercise period to dinner time
Percentage of time of glucose levels spent below 4 mmol/L
Délai: From the end of the exercise period to midnight (7.5 hours)
From the end of the exercise period to midnight (7.5 hours)
Percentage of time of glucose levels spent below 4 mmol/L
Délai: From midnight to 6:00 next morning (6 hours)
From midnight to 6:00 next morning (6 hours)
Percentage of time of glucose levels spent below 4 mmol/L
Délai: From the end of the exercise period to 6:00 next morning (13.5 hours)
From the end of the exercise period to 6:00 next morning (13.5 hours)
Percentage of time of glucose levels spent above 10 mmol/L
Délai: From the end of the exercise period to dinner time
Dinner time will be up to the patient
From the end of the exercise period to dinner time
Percentage of time of glucose levels spent above 10 mmol/L
Délai: From the end of the exercise period to midnight (7.5 hours)
From the end of the exercise period to midnight (7.5 hours)
Percentage of time of glucose levels spent above 10 mmol/L
Délai: From midnight to 6:00 next morning (6 hours)
From midnight to 6:00 next morning (6 hours)
Percentage of time of glucose levels spent above 10 mmol/L
Délai: From the end of the exercise period to 6:00 next morning (13.5 hours)
From the end of the exercise period to 6:00 next morning (13.5 hours)
Number of participants requiring treatment for hypoglycemia
Délai: From the end of the exercise period to dinner time
Dinner time will be up to the patient
From the end of the exercise period to dinner time
Number of participants requiring treatment for hypoglycemia
Délai: From the end of the exercise period to midnight (7.5 hours)
From the end of the exercise period to midnight (7.5 hours)
Number of participants requiring treatment for hypoglycemia
Délai: From midnight to 6:00 next morning (6 hours)
From midnight to 6:00 next morning (6 hours)
Number of participants requiring treatment for hypoglycemia
Délai: From the end of the exercise period to 6:00 next morning (13.5 hours)
From the end of the exercise period to 6:00 next morning (13.5 hours)
Number of hypoglycemic episodes requiring treatment
Délai: From the end of the exercise period to dinner time
Dinner time will be up to the patient
From the end of the exercise period to dinner time
Number of hypoglycemic episodes requiring treatment
Délai: From the end of the exercise period to midnight (7.5 hours)
From the end of the exercise period to midnight (7.5 hours)
Number of hypoglycemic episodes requiring treatment
Délai: From midnight to 6:00 next morning (6 hours)
From midnight to 6:00 next morning (6 hours)
Number of hypoglycemic episodes requiring treatment
Délai: From the end of the exercise period to 6:00 next morning (13.5 hours)
From the end of the exercise period to 6:00 next morning (13.5 hours)
Mean glucose levels
Délai: From the end of the exercise period to dinner time
Dinner time will be up to the patient
From the end of the exercise period to dinner time
Mean glucose levels
Délai: From the end of the exercise period to midnight (7.5 hours)
From the end of the exercise period to midnight (7.5 hours)
Mean glucose levels
Délai: From midnight to 6:00 next morning (6 hours)
From midnight to 6:00 next morning (6 hours)
Mean glucose levels
Délai: From the end of the exercise period to 6:00 next morning (13.5 hours)
From the end of the exercise period to 6:00 next morning (13.5 hours)

Collaborateurs et enquêteurs

C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.

Parrainer

Institut de Recherches Cliniques de Montreal

Publications et liens utiles

La personne responsable de la saisie des informations sur l'étude fournit volontairement ces publications. Il peut s'agir de tout ce qui concerne l'étude.

Publications générales

Dates d'enregistrement des études

Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.

Dates principales de l'étude

Début de l'étude (Réel)

3 août 2017

Achèvement primaire (Réel)

2 août 2019

Achèvement de l'étude (Réel)

2 août 2019

Dates d'inscription aux études

Première soumission

6 juillet 2017

Première soumission répondant aux critères de contrôle qualité

10 juillet 2017

Première publication (Réel)

11 juillet 2017

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Réel)

11 juin 2020

Dernière mise à jour soumise répondant aux critères de contrôle qualité

8 juin 2020

Dernière vérification

1 juin 2020

Plus d'information

Termes liés à cette étude

Mots clés

Termes MeSH pertinents supplémentaires

Autres numéros d'identification d'étude

  • SNACK-1

Informations sur les médicaments et les dispositifs, documents d'étude

Étudie un produit pharmaceutique réglementé par la FDA américaine

Non

Étudie un produit d'appareil réglementé par la FDA américaine

Non

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