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Diet knowledge for insulin dosing and eating disorder risk in type 1 diabetes

Examines links between diet knowledge and eating disorder risk in adults with type 1 diabetes.

Key facts

Who runs it
University Hospital, Grenoble
Where
Grenoble, FranceSee the site
Trial code
Registry title
Impact of Dietary Knowledge Related to Functional Insulin Therapy in Type 1 Diabetes on the Risk of Eating Disorders
Status
Recruiting
People taking part
100 people, planned
Started
14 Apr 2025
Planned end
Dec 2025
Type of study
Observational
Record updated
15 June 2025

Who can take part

AI summary

From the trial's eligibility criteria. Machine-read from the registry text on this page, so it can be wrong. The registry text below and the trial team decide who can take part.

The trial is looking for adults with type 1 diabetes diagnosed at least three months ago. It studies whether knowing how to adjust insulin to carbohydrates is linked to eating disorder risk.

Age
18 years or older
Sex
All sexes can join.
Disease stage
Type 1 diabetes confirmed by a referring physician, diagnosed at least three months ago.

Main reasons for not taking part

  • Cannot complete online questionnaires and take part in a 45-minute video interview
  • Under legal guardianship or curatorship
  • Pregnant or breastfeeding

The registry criteria, word for word

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Who can take part

  • Diagnosis of type 1 diabetes confirmed by a referring physician
  • Diagnosis received at least three months prior
  • Adult (18 years or older)
  • Access to a computer or smartphone capable of videoconferencing
  • No expressed opposition to participation
  • Consent for image rights (for Phase 2 qualitative interviews)

Who cannot take part

  • Inability to complete online questionnaires and participate in a 45-minute videoconference interview
  • Being under legal guardianship or curatorship
  • Being pregnant or breastfeeding

Where in France

  • GrenobleGrenoble, FranceContact: Laura LA AlbaladejoTaking people

About the trial

What the trial wants to find out

Background: The management of type 1 diabetes (T1D) relies on exogenous insulin administration to compensate for the lack of endogenous insulin production. Optimal glycemic control, essential for preventing long-term complications, requires precise insulin dose adjustments based on carbohydrate intake. Functional insulin therapy (FIT) allows for flexibility in insulin dosing according to carbohydrate consumption, thereby reducing the dietary constraints previously imposed on patients. However, this approach requires increased attention to dietary intake. Individuals with T1D already have a heightened risk of developing eating disorders (EDs). We hypothesize that the dietary knowledge required for FIT may contribute to rigid eating behaviors, thereby increasing the risk of EDs.

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Objective: This prospective monocentric study aims to determine whether dietary knowledge related to FIT is associated with an increased risk of EDs in individuals with T1D.

Methods: The primary outcome measure is the correlation between the Gluciquizz score (a validated tool assessing FIT knowledge) and the risk of EDs, evaluated using the DEPS-R questionnaire (a validated screening tool for ED risk in T1D patients). In addition to this quantitative analysis, a qualitative study will be conducted through semi-structured interviews to explore in greater depth the patients' experiences, their relationship with food, and their perceptions of FIT-related requirements.

Perspectives: This study aims to improve the understanding of the impact of FIT on ED risk in T1D. The findings may help identify at-risk patient profiles and enhance therapeutic education and patient management by integrating ED risk considerations. The qualitative approach will provide further insight into patients' individual experiences, facilitating recommendations tailored to their specific needs.

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?

Contact the study team: see the registry record → Contacts and Locations

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Data and sources

Registry record
Listed on ClinicalTrials.gov.
Official title
Impact of Dietary Knowledge Related to Functional Insulin Therapy in Type 1 Diabetes on the Risk of Eating Disorders
Plain-language title
Diet knowledge for insulin dosing and eating disorder risk in type 1 diabetesGenerated from the registry record. The registry title is the official one.
AI summary
From the trial's eligibility criteria. Read by machine on 12 November 2026.
Publications
Record updated
15 June 2025