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Reproducibility of Continuous Glucose Monitoring (CGM) in the Assessment of Glucose Metabolism Disorders in Children With Cystic Fibrosis (CGMUCODIAB)

25 września 2026 zaktualizowane przez: Hospices Civils de Lyon

Glucose metabolism disorders in cystic fibrosis (CF-GMD) are common and have a negative clinical impact. Screening currently relies on the oral glucose tolerance test (OGTT); however, this procedure is burdensome and complex for both patients and healthcare providers. Continuous glucose monitoring (CGM) is increasingly used in CF centers for CF-GMD screening, either alone or alongside the OGTT. While long-term (one-year) OGTT reproducibility is known to be poor, the short- and medium-term reproducibility of CGM remains unknown. This examination is poised to become a major tool in CF-GMD investigation, upon which critical therapeutic decisions could be based. The primary objective of this project is to evaluate the short-term variability of CGM data.

Przegląd badań

Status

Jeszcze nie rekrutacja

Warunki

Interwencja / Leczenie

Typ studiów

Interwencyjne

Zapisy (Szacowany)

30

Faza

  • Nie dotyczy

Kontakty i lokalizacje

Ta sekcja zawiera dane kontaktowe osób prowadzących badanie oraz informacje o tym, gdzie badanie jest przeprowadzane.

Kontakt w sprawie studiów

Kopia zapasowa kontaktu do badania

Lokalizacje studiów

  • Francja
      • Bron, Francja, 69677
        • Hôpital Femme Mère Enfant (HFME)
        • Kontakt:

Kryteria uczestnictwa

Badacze szukają osób, które pasują do określonego opisu, zwanego kryteriami kwalifikacyjnymi. Niektóre przykłady tych kryteriów to ogólny stan zdrowia danej osoby lub wcześniejsze leczenie.

Kryteria kwalifikacji

Wiek uprawniający do nauki

10 lat do 17 lat (Dziecko)

Akceptuje zdrowych ochotników

Nie

Płeć kwalifikująca się do nauki

Wszystko

Opis

Inclusion Criteria:

  • Patients aged 10 to 17 years
  • Diagnosed with cystic fibrosis (CF)
  • Managed by the pediatric CF care center (CRCM) of the Groupement Hospitalier Est
  • Patients presenting with one of the following three stages are included: normal glucose tolerance with or without indeterminate glucose tolerance (INDET), impaired fasting glucose (IFG), and impaired glucose tolerance (IGT)

Exclusion Criteria:

  • Patients with treated or untreated diabetes
  • Patients presenting with a pulmonary exacerbation and currently receiving antibiotic therapy
  • Patients participating in another clinical trial that could interfere, in the investigator's judgment, with the study findings
  • Refusal of the patient and/or the legal guardian(s) to participate in the study
  • Pregnant, parturient, or breastfeeding women
  • Persons deprived of liberty by a judicial or administrative decision
  • Persons undergoing psychiatric care
  • Persons admitted to a healthcare or social institution for purposes other than research
  • Persons not affiliated with a social security scheme or beneficiaries of a similar scheme

Plan studiów

Ta sekcja zawiera szczegółowe informacje na temat planu badania, w tym sposób zaprojektowania badania i jego pomiary.

Jak projektuje się badanie?

Szczegóły projektu

  • Główny cel: Diagnostyczny
  • Przydział: Nie dotyczy
  • Model interwencyjny: Zadanie dla jednej grupy
  • Maskowanie: Brak (otwarta etykieta)

Broń i interwencje

Grupa uczestników / Arm
Interwencja / Leczenie
Eksperymentalny: Non-diabetic patient with cystic fibrosis

Children aged 10 to 17 years diagnosed with cystic fibrosis (CF). Patients presenting with one of the following three stages are included: normal glucose tolerance with or without indeterminate glucose tolerance (INDET), impaired fasting glucose (IFG), and impaired glucose tolerance (IGT).

Patients will be equipped with a continuous glucose monitoring (CGM) sensor (Dexcom ONE+).
Urządzenie: Continuous Glucose Monitoring

Upon enrollment, patients will be equipped with a continuous glucose monitoring (CGM) sensor (Dexcom ONE+). Sensors will be placed on the posterior aspect of the dominant arm at M0, M3, and M6, and additionally on the non-dominant arm at M0 only, in order to evaluate site-dependent variability. At each time point, the sensors will be worn for 7 days to record various CGM parameters, including glycemic variability (analyzed between M0-M3 and M0-M6).

Inny: Eating Habits Questionnaire

A 7-day dietary diary will be completed at M0, M3, and M6.

Inny: Use of an actigraphy watch

Participants will wear an actigraphy watch during 7 days at M0, M3 and M6

Co mierzy badanie?

Podstawowe miary wyniku

Miara wyniku
Opis środka
Ramy czasowe
The variability of the "time in range" (%) parameter (70-140 mg/dL) between M0 and M3.
Ramy czasowe: From enrollment to 3 months

The variability of the "time in range" (%) parameter (70-140 mg/dL) between M0 and M3.
From enrollment to 3 months

Miary wyników drugorzędnych

Miara wyniku
Opis środka
Ramy czasowe
The variability of other CGM parameters between M0 and M3: percentage of time in hypoglycemia (<70 mg/dL)
Ramy czasowe: From enrollment to 3 months

The variability of other CGM parameters between M0 and M3: percentage of time in hypoglycemia (<70 mg/dL)
From enrollment to 3 months
The variability of other CGM parameters between M0 and M3: percentage of time in hyperglycemia (>140 mg/dL)
Ramy czasowe: From enrollment to 3 months

The variability of other CGM parameters between M0 and M3: percentage of time in hyperglycemia (>140 mg/dL)
From enrollment to 3 months
The variability of other CGM parameters between M0 and M3: glycemic variability (%)
Ramy czasowe: From enrollment to 3 months

The variability of other CGM parameters between M0 and M3: glycemic variability (%)
From enrollment to 3 months
The variability of other CGM parameters between M0 and M3: mean glucose level (mg/dL)
Ramy czasowe: From enrollment to 3 months

The variability of other CGM parameters between M0 and M3: mean glucose level (mg/dL)
From enrollment to 3 months
The variability of other CGM parameters between M0 and M3: number of glucose excursions >200 mg/dL
Ramy czasowe: From enrollment to 3 months

The variability of other CGM parameters between M0 and M3: number of glucose excursions >200 mg/dL
From enrollment to 3 months
The variability of other CGM parameters between M0 and M3: estimated HbA1c (eA1c)
Ramy czasowe: From enrollment to 3 months

The variability of other CGM parameters between M0 and M3: estimated HbA1c (eA1c)
From enrollment to 3 months
The variability of CGM parameters between M0 and M6: "time in range" (%) (70-140 mg/dL)
Ramy czasowe: From enrollment to 6 months

The variability of CGM parameters between M0 and M6: "time in range" (%) (70-140 mg/dL)
From enrollment to 6 months
The variability of CGM parameters between M0 and M6: percentage of time in hypoglycemia (<70 mg/dL),
Ramy czasowe: From enrollment to 6 months

The variability of CGM parameters between M0 and M6: percentage of time in hypoglycemia (<70 mg/dL),
From enrollment to 6 months
The variability of CGM parameters between M0 and M6: percentage of time in hyperglycemia (>140 mg/dL),
Ramy czasowe: From enrollment to 6 months

The variability of CGM parameters between M0 and M6: percentage of time in hyperglycemia (>140 mg/dL),
From enrollment to 6 months
The variability of CGM parameters between M0 and M6: glycemic variability (%),
Ramy czasowe: From enrollment to 6 months

The variability of CGM parameters between M0 and M6: glycemic variability (%),
From enrollment to 6 months
The variability of CGM parameters between M0 and M6: mean glucose level (mg/dL),
Ramy czasowe: From enrollment to 6 months

The variability of CGM parameters between M0 and M6: mean glucose level (mg/dL),
From enrollment to 6 months
The variability of CGM parameters between M0 and M6: number of glucose excursions >200 mg/dL
Ramy czasowe: From enrollment to 6 months

The variability of CGM parameters between M0 and M6: number of glucose excursions >200 mg/dL
From enrollment to 6 months
The variability of CGM parameters between M0 and M6: estimated HbA1c (eA1c)
Ramy czasowe: From enrollment to 6 months

The variability of CGM parameters between M0 and M6: estimated HbA1c (eA1c)
From enrollment to 6 months
The variability of CGM parameters according to the sensor placement site between M0 and M3 (inter-arm variability): "time in range" (%) (70-140 mg/dL)
Ramy czasowe: From enrollment to 3 months

The variability of CGM parameters according to the sensor placement site between M0 and M3 (inter-arm variability): "time in range" (%) (70-140 mg/dL)
From enrollment to 3 months
The variability of CGM parameters according to the sensor placement site between M0 and M3 (inter-arm variability): percentage of time in hypoglycemia (<70 mg/dL),
Ramy czasowe: From enrollment to 3 months

The variability of CGM parameters according to the sensor placement site between M0 and M3 (inter-arm variability): percentage of time in hypoglycemia (<70 mg/dL),
From enrollment to 3 months
The variability of CGM parameters according to the sensor placement site between M0 and M3 (inter-arm variability): percentage of time in hyperglycemia (>180 mg/dL)
Ramy czasowe: From enrollment to 3 months

The variability of CGM parameters according to the sensor placement site between M0 and M3 (inter-arm variability): percentage of time in hyperglycemia (>180 mg/dL)
From enrollment to 3 months
The variability of CGM parameters according to the sensor placement site between M0 and M3 (inter-arm variability): glycemic variability (%)
Ramy czasowe: From enrollment to 3 months

The variability of CGM parameters according to the sensor placement site between M0 and M3 (inter-arm variability): glycemic variability (%)
From enrollment to 3 months
The variability of CGM parameters according to the sensor placement site between M0 and M3 (inter-arm variability): mean glucose level (mg/dL)
Ramy czasowe: From enrollment to 3 months

The variability of CGM parameters according to the sensor placement site between M0 and M3 (inter-arm variability): mean glucose level (mg/dL)
From enrollment to 3 months
The variability of CGM parameters according to the sensor placement site between M0 and M3 (inter-arm variability): number of glucose excursions >200 mg/dL
Ramy czasowe: From enrollment to 3 months

The variability of CGM parameters according to the sensor placement site between M0 and M3 (inter-arm variability): number of glucose excursions >200 mg/dL
From enrollment to 3 months
The variability of CGM parameters according to the sensor placement site between M0 and M3 (inter-arm variability): estimated HbA1c (eA1c)
Ramy czasowe: From enrollment to 3 months

The variability of CGM parameters according to the sensor placement site between M0 and M3 (inter-arm variability): estimated HbA1c (eA1c)
From enrollment to 3 months
The variability of CGM parameters according to physical activity (percentage of daytime activity) : Variation in the number of steps
Ramy czasowe: From enrollment to 3 months and 6 months

The variability of CGM parameters according to physical activity (percentage of daytime activity), Variation in the number of steps
From enrollment to 3 months and 6 months
The variability of CGM parameters according to body composition (body fat percentage)
Ramy czasowe: From enrollment to 3 months and 6 months

The variability of CGM parameters according to body composition (body fat percentage) : body fat in kg
From enrollment to 3 months and 6 months
The variability of CGM parameters according to body composition
Ramy czasowe: From enrollment to 3 months and 6 months

The variability of CGM parameters according to body composition (lean mass percentage) : body fat in kg
From enrollment to 3 months and 6 months
The variability of CGM parameters according to body composition (fat mass percentage in the dominant arm)
Ramy czasowe: From enrollment to 3 months and 6 months

The variability of CGM parameters according to body composition (fat mass percentage in the dominant arm) : body fat in kg
From enrollment to 3 months and 6 months
The variability of CGM parameters according to body composition (fat mass percentage in the non-dominant arm) : body fat in kg
Ramy czasowe: From enrollment to 3 months and 6 months

The variability of CGM parameters according to body composition (fat mass percentage in the non-dominant arm) : body fat in kg
From enrollment to 3 months and 6 months
The variability of CGM parameters according to nutritional intake : Daily nutritional intake (kcal)
Ramy czasowe: From enrollment to 3 months and 6 months

The variability of CGM parameters according to nutritional intake : Daily nutritional intake (kcal)
From enrollment to 3 months and 6 months
The variability of CGM parameters according to nutritional intake : carbohydrates (kg)
Ramy czasowe: From enrollment to 3 months ans 6 months

The variability of CGM parameters according to nutritional intake : carbohydrates (kg)
From enrollment to 3 months ans 6 months
The variability of CGM parameters according to nutritional intake : fats (kg)
Ramy czasowe: From enrollment to 3 months and 6 months

The variability of CGM parameters according to nutritional intake : fats (kg)
From enrollment to 3 months and 6 months
The variability of CGM parameters according to nutritional intake : proteins (kg)
Ramy czasowe: From enrollment to 3 months and 6 months

The variability of CGM parameters according to nutritional intake : proteins (kg)
From enrollment to 3 months and 6 months

Współpracownicy i badacze

Tutaj znajdziesz osoby i organizacje zaangażowane w to badanie.

Sponsor

Hospices Civils de Lyon

Daty zapisu na studia

Daty te śledzą postęp w przesyłaniu rekordów badań i podsumowań wyników do ClinicalTrials.gov. Zapisy badań i zgłoszone wyniki są przeglądane przez National Library of Medicine (NLM), aby upewnić się, że spełniają określone standardy kontroli jakości, zanim zostaną opublikowane na publicznej stronie internetowej.

Główne daty studiów

Rozpoczęcie studiów (Szacowany)

1 listopada 2026

Zakończenie podstawowe (Szacowany)

1 lutego 2028

Ukończenie studiów (Szacowany)

1 maja 2028

Daty rejestracji na studia

Pierwszy przesłany

21 września 2026

Pierwszy przesłany, który spełnia kryteria kontroli jakości

25 września 2026

Pierwszy wysłany (Rzeczywisty)

1 października 2026

Aktualizacje rekordów badań

Ostatnia wysłana aktualizacja (Rzeczywisty)

1 października 2026

Ostatnia przesłana aktualizacja, która spełniała kryteria kontroli jakości

25 września 2026

Ostatnia weryfikacja

1 września 2026

Więcej informacji

Terminy związane z tym badaniem

Słowa kluczowe

Dodatkowe istotne warunki MeSH

Inne numery identyfikacyjne badania

  • 69HCL25_1040
  • 2026-A00194-47 (Inny identyfikator: ID-RCB)

Informacje o lekach i urządzeniach, dokumenty badawcze

Bada produkt leczniczy regulowany przez amerykańską FDA

Nie

Bada produkt urządzenia regulowany przez amerykańską FDA

Nie

Te informacje zostały pobrane bezpośrednio ze strony internetowej clinicaltrials.gov bez żadnych zmian. Jeśli chcesz zmienić, usunąć lub zaktualizować dane swojego badania, skontaktuj się z register@clinicaltrials.gov. Gdy tylko zmiana zostanie wprowadzona na stronie clinicaltrials.gov, zostanie ona automatycznie zaktualizowana również na naszej stronie internetowej .

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