- ICH GCP
- Rejestr badań klinicznych w USA
- Badanie kliniczne NCT02855307
Closed-loop Control of Glucose Levels (Artificial Pancreas) During Postprandial Exercise in Adults With Type 1 Diabetes
A Single-blind, Randomized, Cross-over Study to Assess the Efficacy of Single-hormone Closed-loop Strategy at Preventing Hypoglycemia During Unannounced and Announced Exercise in Adults With Type 1 Diabetes
Regular physical activity is associated with many health benefits for individuals with type 1 diabetes including improved cardiovascular fitness and vascular health, decreased insulin requirements, improved body composition and quality of life. However, exercise-induced hypoglycemia is very frequent and thus is the main limiting factor for physical activity practice in this population.
The artificial pancreas is composed of three components: glucose sensor to read glucose levels, insulin pump to infuse insulin and a dosing mathematical algorithm to decide on the required insulin dosages based on the sensor's readings. The artificial pancreas has the potential to reduce the risk of exercise-induced hypoglycemia but the importance of announcing exercise to the artificial pancreas is yet to be explored.
The objective of this study is to investigate 1) if announcing postprandial exercise to the artificial pancreas is beneficial in reducing the risk of hypoglycemia and 2) if an insulin bolus reduction is necessary when announcing the exercise to the artificial pancreas.
Przegląd badań
Status
Warunki
Typ studiów
Zapisy (Rzeczywisty)
Faza
- Faza 2
Kontakty i lokalizacje
Lokalizacje studiów
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Quebec
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Montreal, Quebec, Kanada, H2W 1R7
- Institut de recherches cliniques de Montreal
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Kryteria uczestnictwa
Kryteria kwalifikacji
Wiek uprawniający do nauki
Akceptuje zdrowych ochotników
Płeć kwalifikująca się do nauki
Opis
Inclusion Criteria:
- Males and females ≥ 18 years of old.
- Clinical diagnosis of type 1 diabetes for at least one year.
- The subject will have been on insulin pump therapy for at least 3 months.
- Last (less than 3 months) HbA1c ≤ 12%.
Exclusion Criteria:
- 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.
- Recent (< 3 months) acute macrovascular event e.g. acute coronary syndrome or cardiac surgery.
- Use of medication with an effect on heart rate (e.g. beta-blockers).
- Abnormal blood panel and/or anemia.
- Ongoing or planned pregnancy.
- Severe hypoglycemic episode within two weeks of screening.
- 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).
- Failure to comply with team's recommendations (e.g. not willing to eat snack, not willing to change pump parameters, etc).
- Problems with venous access.
Plan studiów
Jak projektuje się badanie?
Szczegóły projektu
- Główny cel: Leczenie
- Przydział: Randomizowane
- Model interwencyjny: Zadanie krzyżowe
- Maskowanie: Pojedynczy
Broń i interwencje
Grupa uczestników / Arm |
Interwencja / Leczenie |
|---|---|
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Aktywny komparator: Unannounced exercise
The target blood glucose of the algorithm will be as usual.
A pre-meal full insulin bolus will be given.
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Zostanie użyty zwykle stosowany przez pacjenta szybko działający analog insuliny.
Czujnik glukozy Dexcom G4 Platinum będzie używany do pomiaru poziomu glukozy.
Patients will be admitted at the research clinical facility at 6:30.
The artificial pancreas intervention will start at 7:00.
A standardized breakfast will be served at 8:00.
At 9:30, patients will performed a 60-minute exercise on the ergocycle at 60% of VO2 max.
At 11:30, patients will be switched to standard insulin pump therapy and a lunch will be served.
Patients will be discharged after lunch consumption.
Patient's insulin pump will be used to infuse insulin.
Variable subcutaneous insulin infusion rates will be used to regulate glucose levels.
Patient's usual fast acting insulin analog (Lispro, Aspart or Guilisine) will be infused using the patient's pump.
The glucose level as measured by the real time sensor (Dexcom G4 Platinum, Dexcom Inc.) will be entered manually into the computer every 10 minutes.
The pump's infusion rate will then be changed manually based on the computer generated recommendation infusion rates.
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Aktywny komparator: Announced exercise with pre-meal full bolus
The target blood glucose of the algorithm will be increased and a pre-meal full bolus will be given
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Zostanie użyty zwykle stosowany przez pacjenta szybko działający analog insuliny.
Czujnik glukozy Dexcom G4 Platinum będzie używany do pomiaru poziomu glukozy.
Patients will be admitted at the research clinical facility at 6:30.
The artificial pancreas intervention will start at 7:00.
A standardized breakfast will be served at 8:00.
At 9:30, patients will performed a 60-minute exercise on the ergocycle at 60% of VO2 max.
At 11:30, patients will be switched to standard insulin pump therapy and a lunch will be served.
Patients will be discharged after lunch consumption.
Patient's insulin pump will be used to infuse insulin.
Variable subcutaneous insulin infusion rates will be used to regulate glucose levels.
Patient's usual fast acting insulin analog (Lispro, Aspart or Guilisine) will be infused using the patient's pump.
The glucose level as measured by the real time sensor (Dexcom G4 Platinum, Dexcom Inc.) will be entered manually into the computer every 10 minutes.
The pump's infusion rate will then be changed manually based on the computer generated recommendation infusion rates.
|
|
Aktywny komparator: Announced exercise with reduced insulin bolus
The target blood glucose of the algorithm will be increased and the pre-meal insulin bolus will be reduced by 33%.
|
Zostanie użyty zwykle stosowany przez pacjenta szybko działający analog insuliny.
Czujnik glukozy Dexcom G4 Platinum będzie używany do pomiaru poziomu glukozy.
Patients will be admitted at the research clinical facility at 6:30.
The artificial pancreas intervention will start at 7:00.
A standardized breakfast will be served at 8:00.
At 9:30, patients will performed a 60-minute exercise on the ergocycle at 60% of VO2 max.
At 11:30, patients will be switched to standard insulin pump therapy and a lunch will be served.
Patients will be discharged after lunch consumption.
Patient's insulin pump will be used to infuse insulin.
Variable subcutaneous insulin infusion rates will be used to regulate glucose levels.
Patient's usual fast acting insulin analog (Lispro, Aspart or Guilisine) will be infused using the patient's pump.
The glucose level as measured by the real time sensor (Dexcom G4 Platinum, Dexcom Inc.) will be entered manually into the computer every 10 minutes.
The pump's infusion rate will then be changed manually based on the computer generated recommendation infusion rates.
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Co mierzy badanie?
Podstawowe miary wyniku
Miara wyniku |
Ramy czasowe |
|---|---|
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Percentage of time of plasma glucose levels spent below 3.9 mmol/L
Ramy czasowe: From 9:30 to 11:30 (120 minutes)
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From 9:30 to 11:30 (120 minutes)
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Miary wyników drugorzędnych
Miara wyniku |
Opis środka |
Ramy czasowe |
|---|---|---|
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Relative decrease in glucose levels during exercise compared to pre-breakfast levels
Ramy czasowe: From 8:00 to 10:50 (170 minutes)
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Difference between pre-breakfast levels and the lowest glucose level from the start of the exercise until 20 minutes after exercise
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From 8:00 to 10:50 (170 minutes)
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Number of patients experiencing exercise-induced hypoglycemia requiring treatment
Ramy czasowe: From 9:30 to 10:30 (60 minutes)
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From 9:30 to 10:30 (60 minutes)
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Decremental area under the curve from the start of the exercise
Ramy czasowe: From 9:30 to 11:00 (90 minutes)
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From 9:30 to 11:00 (90 minutes)
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Percentage of time of plasma glucose levels spent below 3.9 mmol/L
Ramy czasowe: From 9:30 to 10:30 (60 minutes)
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From 9:30 to 10:30 (60 minutes)
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Percentage of time of plasma glucose levels spent below 3.3 mmol/L
Ramy czasowe: From 9:30 to 10:30 (60 minutes)
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From 9:30 to 10:30 (60 minutes)
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Percentage of time of plasma glucose levels spent below 2.8 mmol/L
Ramy czasowe: From 9:30 to 10:30 (60 minutes)
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From 9:30 to 10:30 (60 minutes)
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Percentage of time of plasma glucose levels spent between 3.9 and 7.8 mmol/L
Ramy czasowe: From 9:30 to 10:30 (60 minutes)
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From 9:30 to 10:30 (60 minutes)
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Percentage of time of plasma glucose levels spent above 10 mmol/L
Ramy czasowe: From 9:30 to 10:30 (60 minutes)
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From 9:30 to 10:30 (60 minutes)
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Percentage of time of plasma glucose levels spent above 13.9 mmol/L
Ramy czasowe: From 9:30 to 10:30 (60 minutes)
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From 9:30 to 10:30 (60 minutes)
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Percentage of time of plasma glucose levels spent above 16.7 mmol/L
Ramy czasowe: From 9:30 to 10:30 (60 minutes)
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From 9:30 to 10:30 (60 minutes)
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Mean plasma glucose levels
Ramy czasowe: From 8:00 to 11:30 (210 minutes)
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From 8:00 to 11:30 (210 minutes)
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Standard deviation of glucose levels
Ramy czasowe: From 8:00 to 11:30 (210 minutes)
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From 8:00 to 11:30 (210 minutes)
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Coefficient of variation of glucose levels
Ramy czasowe: From 8:00 to 11:30 (210 minutes)
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From 8:00 to 11:30 (210 minutes)
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Mean time (minutes) to the first hypoglycemic event
Ramy czasowe: From 9:30 to 10:30 (60 minutes)
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From 9:30 to 10:30 (60 minutes)
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Współpracownicy i badacze
Publikacje i pomocne linki
Daty zapisu na studia
Główne daty studiów
Rozpoczęcie studiów
Zakończenie podstawowe (Rzeczywisty)
Ukończenie studiów (Rzeczywisty)
Daty rejestracji na studia
Pierwszy przesłany
Pierwszy przesłany, który spełnia kryteria kontroli jakości
Pierwszy wysłany (Oszacować)
Aktualizacje rekordów badań
Ostatnia wysłana aktualizacja (Rzeczywisty)
Ostatnia przesłana aktualizacja, która spełniała kryteria kontroli jakości
Ostatnia weryfikacja
Więcej informacji
Terminy związane z tym badaniem
Słowa kluczowe
Dodatkowe istotne warunki MeSH
- Zaburzenia metabolizmu glukozy
- Choroby metaboliczne
- Choroby układu odpornościowego
- Choroby Autoimmunologiczne
- Choroby układu hormonalnego
- Cukrzyca
- Cukrzyca typu 1
- Środki hipoglikemizujące
- Fizjologiczne skutki leków
- Hormony, substytuty hormonów i antagoniści hormonów
- Insulina
- Insulina, Globin Cynk
- Hormony
Inne numery identyfikacyjne badania
- CLASS-16
Plan dla danych uczestnika indywidualnego (IPD)
Planujesz udostępniać dane poszczególnych uczestników (IPD)?
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University Hospital, Basel, SwitzerlandRekrutacyjnyTechnologia Sonic AfitmmentationSzwajcaria
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Universitair Ziekenhuis BrusselZakończonyNefrogenna moczówka prostaBelgia
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G2e Co., LtdJeszcze nie rekrutacja
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Michigan State UniversityZakończonyĆwiczenie | InsulinaStany Zjednoczone
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Gan & Lee Pharmaceuticals.Jeszcze nie rekrutacjaCukrzyca typu 2 (T2DM)Chiny
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Portal Diabetes, Inc.Rekrutacyjny
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Novo Nordisk A/SRekrutacyjny
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Beijing Tsinghua Chang Gung HospitalJinhua People's Hospital; Jinhua Municipal Central Hospital; The Central Hospital... i inni współpracownicyRejestracja na zaproszeniePacjenci z cukrzycą typu 2Chiny
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Yanbing LiJeszcze nie rekrutacja
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