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

25. September 2026 aktualisiert von: 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.

Studienübersicht

Status

Noch keine Rekrutierung

Bedingungen

Intervention / Behandlung

Studientyp

Interventionell

Einschreibung (Geschätzt)

30

Phase

  • Unzutreffend

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienkontakt

Studieren Sie die Kontaktsicherung

Studienorte

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

10 Jahre bis 17 Jahre (Kind)

Akzeptiert gesunde Freiwillige

Nein

Studienberechtigte Geschlechter

Alle

Beschreibung

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

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Hauptzweck: Diagnose
  • Zuteilung: N / A
  • Interventionsmodell: Einzelgruppenzuweisung
  • Maskierung: Keine (Offenes Etikett)

Waffen und Interventionen

Teilnehmergruppe / Arm
Intervention / Behandlung
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+).

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

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
The variability of the "time in range" (%) parameter (70-140 mg/dL) between M0 and M3.
Zeitfenster: 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

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
The variability of other CGM parameters between M0 and M3: percentage of time in hypoglycemia (<70 mg/dL)
Zeitfenster: 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)
Zeitfenster: 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 (%)
Zeitfenster: 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)
Zeitfenster: 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
Zeitfenster: 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)
Zeitfenster: 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)
Zeitfenster: 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),
Zeitfenster: 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),
Zeitfenster: 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 (%),
Zeitfenster: 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),
Zeitfenster: 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
Zeitfenster: 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)
Zeitfenster: 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)
Zeitfenster: 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),
Zeitfenster: 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)
Zeitfenster: 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 (%)
Zeitfenster: 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)
Zeitfenster: 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
Zeitfenster: 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)
Zeitfenster: 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
Zeitfenster: 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)
Zeitfenster: 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
Zeitfenster: 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)
Zeitfenster: 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
Zeitfenster: 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)
Zeitfenster: 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)
Zeitfenster: 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)
Zeitfenster: 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)
Zeitfenster: 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

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Sponsor

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn (Geschätzt)

1. November 2026

Primärer Abschluss (Geschätzt)

1. Februar 2028

Studienabschluss (Geschätzt)

1. Mai 2028

Studienanmeldedaten

Zuerst eingereicht

21. September 2026

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

25. September 2026

Zuerst gepostet (Tatsächlich)

1. Oktober 2026

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

1. Oktober 2026

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

25. September 2026

Zuletzt verifiziert

1. September 2026

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Andere Studien-ID-Nummern

  • 69HCL25_1040
  • 2026-A00194-47 (Andere Kennung: ID-RCB)

Arzneimittel- und Geräteinformationen, Studienunterlagen

Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt

Nein

Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt

Nein

Diese Informationen wurden ohne Änderungen direkt von der Website clinicaltrials.gov abgerufen. Wenn Sie Ihre Studiendaten ändern, entfernen oder aktualisieren möchten, wenden Sie sich bitte an register@clinicaltrials.gov. Sobald eine Änderung auf clinicaltrials.gov implementiert wird, wird diese automatisch auch auf unserer Website aktualisiert .