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

25 de septiembre de 2026 actualizado por: 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.

Descripción general del estudio

Estado

Aún no reclutando

Condiciones

Intervención / Tratamiento

Tipo de estudio

Intervencionista

Inscripción (Estimado)

30

Fase

  • No aplica

Contactos y Ubicaciones

Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.

Estudio Contacto

Copia de seguridad de contactos de estudio

Ubicaciones de estudio

  • Francia
      • Bron, Francia, 69677
        • Hôpital Femme Mère Enfant (HFME)
        • Contacto:

Criterios de participación

Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.

Criterio de elegibilidad

Edades elegibles para estudiar

10 años a 17 años (Niño)

Acepta Voluntarios Saludables

No

Géneros elegibles para el estudio

Todos

Descripción

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 de estudios

Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.

¿Cómo está diseñado el estudio?

Detalles de diseño

  • Propósito principal: Diagnóstico
  • Asignación: N / A
  • Modelo Intervencionista: Asignación de un solo grupo
  • Enmascaramiento: Ninguno (etiqueta abierta)

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Experimental: 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+).
Dispositivo: 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).

Otro: Eating Habits Questionnaire

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

Otro: Use of an actigraphy watch

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

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
The variability of the "time in range" (%) parameter (70-140 mg/dL) between M0 and M3.
Periodo de tiempo: 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

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
The variability of other CGM parameters between M0 and M3: percentage of time in hypoglycemia (<70 mg/dL)
Periodo de tiempo: 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)
Periodo de tiempo: 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 (%)
Periodo de tiempo: 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)
Periodo de tiempo: 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
Periodo de tiempo: 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)
Periodo de tiempo: 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)
Periodo de tiempo: 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),
Periodo de tiempo: 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),
Periodo de tiempo: 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 (%),
Periodo de tiempo: 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),
Periodo de tiempo: 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
Periodo de tiempo: 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)
Periodo de tiempo: 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)
Periodo de tiempo: 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),
Periodo de tiempo: 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)
Periodo de tiempo: 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 (%)
Periodo de tiempo: 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)
Periodo de tiempo: 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
Periodo de tiempo: 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)
Periodo de tiempo: 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
Periodo de tiempo: 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)
Periodo de tiempo: 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
Periodo de tiempo: 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)
Periodo de tiempo: 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
Periodo de tiempo: 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)
Periodo de tiempo: 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)
Periodo de tiempo: 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)
Periodo de tiempo: 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)
Periodo de tiempo: 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

Colaboradores e Investigadores

Aquí es donde encontrará personas y organizaciones involucradas en este estudio.

Patrocinador

Hospices Civils de Lyon

Fechas de registro del estudio

Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados ​​por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.

Fechas importantes del estudio

Inicio del estudio (Estimado)

1 de noviembre de 2026

Finalización primaria (Estimado)

1 de febrero de 2028

Finalización del estudio (Estimado)

1 de mayo de 2028

Fechas de registro del estudio

Enviado por primera vez

21 de septiembre de 2026

Primero enviado que cumplió con los criterios de control de calidad

25 de septiembre de 2026

Publicado por primera vez (Actual)

1 de octubre de 2026

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

1 de octubre de 2026

Última actualización enviada que cumplió con los criterios de control de calidad

25 de septiembre de 2026

Última verificación

1 de septiembre de 2026

Más información

Términos relacionados con este estudio

Palabras clave

Términos MeSH relevantes adicionales

Otros números de identificación del estudio

  • 69HCL25_1040
  • 2026-A00194-47 (Otro identificador: ID-RCB)

Información sobre medicamentos y dispositivos, documentos del estudio

Estudia un producto farmacéutico regulado por la FDA de EE. UU.

No

Estudia un producto de dispositivo regulado por la FDA de EE. UU.

No

Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .

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