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

25 settembre 2026 aggiornato da: 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.

Panoramica dello studio

Stato

Non ancora reclutamento

Condizioni

Intervento / Trattamento

Tipo di studio

Interventistico

Iscrizione (Stimato)

30

Fase

  • Non applicabile

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Contatto studio

Backup dei contatti dello studio

Luoghi di studio

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

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

Da 10 anni a 17 anni (Bambino)

Accetta volontari sani

No

Sessi ammissibili allo studio

Tutto

Descrizione

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

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Diagnostico
  • Assegnazione: N / A
  • Modello interventistico: Assegnazione di gruppo singolo
  • Mascheramento: Nessuno (etichetta aperta)

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Sperimentale: 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+).

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).

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

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

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
The variability of the "time in range" (%) parameter (70-140 mg/dL) between M0 and M3.
Lasso di tempo: 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

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
The variability of other CGM parameters between M0 and M3: percentage of time in hypoglycemia (<70 mg/dL)
Lasso di tempo: 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)
Lasso di tempo: 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 (%)
Lasso di tempo: 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)
Lasso di tempo: 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
Lasso di tempo: 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)
Lasso di tempo: 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)
Lasso di tempo: 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),
Lasso di tempo: 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),
Lasso di tempo: 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 (%),
Lasso di tempo: 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),
Lasso di tempo: 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
Lasso di tempo: 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)
Lasso di tempo: 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)
Lasso di tempo: 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),
Lasso di tempo: 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)
Lasso di tempo: 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 (%)
Lasso di tempo: 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)
Lasso di tempo: 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
Lasso di tempo: 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)
Lasso di tempo: 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
Lasso di tempo: 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)
Lasso di tempo: 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
Lasso di tempo: 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)
Lasso di tempo: 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
Lasso di tempo: 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)
Lasso di tempo: 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)
Lasso di tempo: 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)
Lasso di tempo: 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)
Lasso di tempo: 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

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Stimato)

1 novembre 2026

Completamento primario (Stimato)

1 febbraio 2028

Completamento dello studio (Stimato)

1 maggio 2028

Date di iscrizione allo studio

Primo inviato

21 settembre 2026

Primo inviato che soddisfa i criteri di controllo qualità

25 settembre 2026

Primo Inserito (Effettivo)

1 ottobre 2026

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

1 ottobre 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

25 settembre 2026

Ultimo verificato

1 settembre 2026

Maggiori informazioni

Termini relativi a questo studio

Altri numeri di identificazione dello studio

  • 69HCL25_1040
  • 2026-A00194-47 (Altro identificatore: ID-RCB)

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

No

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

No

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .