NCT05163002

Brief Summary

Carbohydrates are the nutrient in the diet with the greatest impact on blood glucose. Inadequate carbohydrate counts are associated with higher A1c and greater variations in postprandial blood glucose. Clinical guidelines for the nutritional treatment of diabetes recommend that patients with DM1 learn carbohydrate counting or some similar systematic strategy that allows for better metabolic control. However, despite the recommendations, this is still not a reality for most healthcare services treating individuals diagnosed with DM1.

Trial Health

30
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Timeline
Completed

Started May 2021

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
withdrawn

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 Start

First participant enrolled

May 10, 2021

Completed
7 months until next milestone

First Submitted

Initial submission to the registry

December 6, 2021

Completed
14 days until next milestone

First Posted

Study publicly available on registry

December 20, 2021

Completed
1.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 31, 2023

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

April 30, 2023

Completed
Last Updated

February 12, 2026

Status Verified

February 1, 2026

Enrollment Period

1.7 years

First QC Date

December 6, 2021

Last Update Submit

February 9, 2026

Conditions

Outcome Measures

Primary Outcomes (1)

  • Differences between baseline A1c (%) and 90 days after the last educational session.

    The outcome will be assessed through blood exams

    90 days

Secondary Outcomes (4)

  • Difference in the level of nutritional knowledge assessed through a questionnaire "Nutrition knowledge" collected at baseline and in the last educational session (scale 0 to 23, where 23 is the highest).

    90 days

  • Difference in time in range (%) between baseline and 90 days following the last educational session

    90 days

  • Difference in the glucose coefficient of variation (%) between baseline and 90 days following the last educational session

    90 days

  • Difference in mean glycaemia (mg /dL) between baseline and 90 days following the last educational session

    90 days

Study Arms (1)

Intervention

EXPERIMENTAL

Intervention arm, uncontrolled

Behavioral: Nutritional education & carbohydrate counting

Interventions

Nutrition Education with a multidisciplinary team

Intervention

Eligibility Criteria

Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Adults aged ≥18 years old who have been diagnosed with type 1 diabetes or parents of children and adolescents (\< 18 years old) who have been diagnosed with type 1 diabetes;
  • To be under intensive insulin therapy (basal/bolus system);
  • To regularly use a continuous glucose monitoring system as primary method for glycaemic control;
  • To be able to read and write.

You may not qualify if:

  • None

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Nova Medical School

Lisbon, 1169-056, Portugal

Location

MeSH Terms

Conditions

Diabetes Mellitus, Type 1

Condition Hierarchy (Ancestors)

Diabetes MellitusGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System DiseasesAutoimmune DiseasesImmune System Diseases
0

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 6, 2021

First Posted

December 20, 2021

Study Start

May 10, 2021

Primary Completion

January 31, 2023

Study Completion

April 30, 2023

Last Updated

February 12, 2026

Record last verified: 2026-02

Locations