NCT05594706

Brief Summary

The investigators will measure blood levels of 1,5-anhydroglucitol in children with type 1 diabetes and correlate them with parameters related to functional beta-cell mass in diabetic patients. The values will be compared to those obtained in healthy volunteers. Children with newly diagnosed diabetes as well as children with longstanding disease will be included. The aim of the study is to test the validity of 1,5-anhydroglucitol as a novel biomarker of beta-cell mass and function in type 1 diabetes.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
60

participants targeted

Target at P25-P50 for all trials

Timeline
7mo left

Started Jan 2023

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress86%
Jan 2023Dec 2026

First Submitted

Initial submission to the registry

September 29, 2022

Completed
27 days until next milestone

First Posted

Study publicly available on registry

October 26, 2022

Completed
3 months until next milestone

Study Start

First participant enrolled

January 27, 2023

Completed
3.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2026

Last Updated

May 18, 2026

Status Verified

May 1, 2026

Enrollment Period

3.9 years

First QC Date

September 29, 2022

Last Update Submit

May 14, 2026

Conditions

Outcome Measures

Primary Outcomes (6)

  • Correlation of 1,5-anhydroglucitol levels in newly diagnosed patients with indirect markers of beta-cell function and mass

    Blood levels of 1,5-anhydroglucitol will be correlated with indirect markers of beta-cell function at different moments after diagnosis

    Day 1

  • Correlation of 1,5-anhydroglucitol levels in newly diagnosed patients with indirect markers of beta-cell function and mass

    Blood levels of 1,5-anhydroglucitol will be correlated with indirect markers of beta-cell function at different moments after diagnosis

    4 months after diagnosis

  • Correlation of 1,5-anhydroglucitol levels in newly diagnosed patients with indirect markers of beta-cell function and mass

    Blood levels of 1,5-anhydroglucitol will be correlated with indirect markers of beta-cell function at different moments after diagnosis

    12 months after diagnosis

  • Correlation of 1,5-anhydroglucitol levels in patients with longstanding disease with indirect markers of beta-cell function and mass

    Blood levels of 1,5-anhydroglucitol will be correlated with indirect markers of beta-cell function in patients with different disease duration

    In participants with a disease duration of 3 years.

  • Correlation of 1,5-anhydroglucitol levels in patients with longstanding disease with indirect markers of beta-cell function and mass

    Blood levels of 1,5-anhydroglucitol will be correlated with indirect markers of beta-cell function in patients with different disease duration

    In participants with a disease duration of 5 years.

  • Correlation of 1,5-anhydroglucitol levels in patients with longstanding disease with indirect markers of beta-cell function and mass

    Blood levels of 1,5-anhydroglucitol will be correlated with indirect markers of beta-cell function in patients with different disease duration

    In participants with a disease duration of 10 years.

Study Arms (2)

Newly diagnosed patients with T1DM

The investigators will do prospective measures in 10 to 15 children aged 2 to 18 years, at the time of diagnosis, four months after diagnosis and one year after diagnosis.

Other: Measurement of blood levels of 1,5-anhydroglucitol

Patients with T1DM of different duration

As the functional beta-cell mass gradually declines as disease duration increases, the investigators will do measurements in a cohort of children aged ≤ 18 years, with increasing diabetes duration. The investigators plan to analyze groups of 5 patients with a disease duration of 3 (36 - 47 months), 5 (60 - 71 months) and 10 years (120 - 131 months), respectively.

Other: Measurement of blood levels of 1,5-anhydroglucitol

Interventions

Measurement of blood levels of 1,5-anhydroglucitol

Newly diagnosed patients with T1DMPatients with T1DM of different duration

Eligibility Criteria

Age2 Years - 18 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64)
Sampling MethodNon-Probability Sample
Study Population

Among children with type 1 diabetes, aged 2 to 18 years: 15 newly diagnosed patients and 15 age- and sex-matched controls. 5 patients with a diabetes duration of 3 (36 - 47 months), 5 patients with a disease duration of 5 (60 - 71 months) and 5 patients with a disease duration of 10 years (120 - 131 months) and 15 corresponding age- and sex-matched controls.

You may qualify if:

  • Type 1 diabetes with positive autoantibodies against islets, insulin, islet antigen 2 (IA2), glutamic acid decarboxylase (GAD) 65 or zinc transporter (ZnT)8.
  • Treatment with continuous subcutaneous insulin infusion (CSII) with or without automated insulin delivery (AID).
  • Monitoring with a continuous glucose measurement system (CGMS) or flash glucose monitor (FGM).
  • Patient willing to keep the same type of CGMS or FGM during the year of observation
  • Ability to give informed consent as documented by signature

You may not qualify if:

  • Patients treated with multiple daily injections (MDI) or not willing to wear a CGMS of FGM
  • Patients changing the type of CGMS during the course of the study.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University Hospital of Geneva

Geneva, Canton of Geneva, 1211, Switzerland

RECRUITING

MeSH Terms

Conditions

Diabetes Mellitus, Type 1

Condition Hierarchy (Ancestors)

Diabetes MellitusGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System DiseasesAutoimmune DiseasesImmune System Diseases

Central Study Contacts

Pierre Maechler

CONTACT

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal investigator

Study Record Dates

First Submitted

September 29, 2022

First Posted

October 26, 2022

Study Start

January 27, 2023

Primary Completion (Estimated)

December 31, 2026

Study Completion (Estimated)

December 31, 2026

Last Updated

May 18, 2026

Record last verified: 2026-05

Locations