Support-t Online Training in Youth Living With Type 1 Diabetes Transitioning to Adult Care (Support-t)

September 22, 2025 updated by: Anne-Sophie Brazeau

Support-t, an Online Training and Peer Support Platform to Accompany Youth Living With Type 1 Diabetes Transitioning to Adult Healthcare

The investigators will conduct a randomized controlled trial (RCT) to examine how an online training and peer support platform could help the preparation to transition to adult care. Among 14-16 year old youth with Type 1 Diabetes (T1D), the investigators aim to assess the effect of an online training and peer support platform (Support-t) integrated in usual care, compared with usual care on Hemoglobin A1c (HbA1c), adverse outcomes and psychosocial measures during the preparation for transition to adult care. The investigators will conduct a multi-site, parallel group, blinded (outcome assessors, data analysts), superiority RCT of adolescents with T1D (14-16 years of age) followed at one of 4 university teaching hospital-based pediatric diabetes clinics in the province of Quebec.

Study Overview

Detailed Description

The transition from pediatric to adult diabetes care is a challenging period for adolescents and young adults living with chronic conditions, such as Type 1 Diabetes (T1D). For youth with T1D, transition from pediatric to adult care is characterized by deterioration in glycemic control (Hemoglobin A1c [HbA1c]), reduced adherence to diabetes management tasks and increased risk of diabetes complications. The investigators propose to examine an online training and peer support platform as a potential alternative for delivering transition care. In adolescents with T1D, the investigators hypothesize that an online training and peer support platform (Support-t), when integrated into usual pediatric care, as compared with usual care alone, will result in better HbA1c, less adverse outcomes and better psychosocial outcomes during the preparation for transfer to adult care.

Primary Aim: To determine the impact of adding access to Support-t to usual care compared with usual care alone, on HbA1c during the preparation for transfer to adult care.

Secondary Aims: To determine the impact of adding access to Support-t to usual care compared with usual care alone, on self-efficacy, diabetes distress, quality of life (QOL; diabetes specific), readiness to transfer to adult care, glucose management, severe hypoglycemic episodes, diabetic ketoacidosis (DKA), T1D-related ED-visits and hospitalizations during the preparation for transfer to adult care. 2. To determine the cost-effectiveness of Support-t. 3. To understand the context for implementation in regards to level of engagement on Support-t, satisfaction and experience (barriers, facilitators) with Support-t.

Methods: The investigators will conduct a multi-site, parallel group, blinded (outcome assessors, data analysts), superiority RCT of adolescents with T1D (14-16 years of age) followed at one of 4 university teaching hospital-based pediatric diabetes clinics in Quebec. Patients will be recruited over 20 months. Interventions will occur over 18 months. Follow-up will be to 18 months from enrollment. Allocation will be concealed with a 1:1 intervention to control ratio. Participants in the active arm will have access to a mobile-based online training and peer support platform (Support-t) added to usual care. Participants in the control group will have in parallel with the intervention group, their usual diabetes care. The primary outcome is the change in HbA1c measured at 18 months (HbA1c measured at 18 months - HbA1c measured at baseline). Secondary outcomes are self-efficacy, diabetes distress, QOL, readiness to transfer, glucose management, severe hypoglycemic episodes, DKA, T1D-related ED-visits and hospitalizations. Assessments are at baseline, 6, 12 and 18 months. Analysis will be by intention-to-treat. Outcomes will be calculated and compared between the 2 trial arms using differences with 95% Confidence Intervals, along with a cost-effectiveness analysis. Interviews will be conducted to analyze the context for implementation.

Study Type

Interventional

Enrollment (Estimated)

200

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Adolescents with a clinical diagnosis of T1D
  • 14-16 years of age
  • Receiving diabetes care at one of 4 university teaching hospital-based pediatric diabetes clinics in Quebec: Montreal Children's Hospital-McGill University Health Centre, Centre hospitalier universitaire de Sherbrooke, Le Copain-Hôpital de Gatineau, Centre Hospitalier Universitaire de Québec
  • Having access to internet
  • Having an active email address
  • Fluent in English or French

Exclusion Criteria:

  • Severe neurocognitive disabilities
  • Patients with conditions associated with shortened erythrocyte survival, such as hemolytic anemia or other conditions associated with inaccurate HbA1c

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Supportive Care
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Support-t plus usual diabetes care
Access to the Support-t online training and peer support platform in addition to usual diabetes care for 18 months. Support-t contains 3 components: 1) Educational material, 2) News blog and 3) Patients' discussion forum. Health care providers from the pediatric diabetes clinics will receive Support-t training and will be encouraged to recommend the Support-t platform during routine care with their patients from the active arm.
Support-t plus usual diabetes care for 18 months
No Intervention: Usual diabetes care only
Usual diabetes care for 18 months, which consists of visits with their health care provider and ad-hoc diabetes education with nurses and dietitians. Health care providers from the pediatric diabetes clinics will be instructed not to discuss or refer to the Support-t platform with patients from the control arm. Control arm participants will have the option to use the Support-t platform after the 18-month study.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change from Baseline Hemaglobin A1c (HbA1c) at 18 months
Time Frame: 18 months
HbA1c measured with a venous or capillary blood sample as part of the standard of diabetes care will be derived from the medical record chart or measured using an A1c Test Kit, which is a non-fasting, finger prick, whole blood test
18 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change from Baseline Hemaglobin A1c (HbA1c) at 6 and 12 months
Time Frame: 6, 12 months
HbA1c measured with a venous or capillary blood sample as part of the standard of diabetes care will be derived from the medical record chart or measured using an A1c Test Kit, which is a non-fasting, finger prick, whole blood test
6, 12 months
Continuous Glucose Monitoring (CGM) - % Time in range
Time Frame: 0, 6, 12, 18 months
% Time in range (3.9-10.0mmol/L) over the past 4 weeks will be derived from the medical record chart
0, 6, 12, 18 months
Continuous Glucose Monitoring (CGM) - % Time above range
Time Frame: 0, 6, 12, 18 months
% Time above range (3.9-10.0mmol/L) over the past 4 weeks will be derived from the medical record chart
0, 6, 12, 18 months
Continuous Glucose Monitoring (CGM) - % Time below range
Time Frame: 0, 6, 12, 18 months
% Time below range (3.9-10.0mmol/L) over the past 4 weeks will be derived from the medical record chart
0, 6, 12, 18 months
Continuous Glucose Monitoring (CGM) - Standard deviation
Time Frame: 0, 6, 12, 18 months
Standard deviation of the past 4 weeks will be derived from the medical record chart
0, 6, 12, 18 months
Continuous Glucose Monitoring (CGM) - % Coefficient of variation
Time Frame: 0, 6, 12, 18 months
% Coefficient of variation of the past 4 weeks will be derived from the medical record chart
0, 6, 12, 18 months
Severe hypoglycemic events
Time Frame: 0, 6, 12, 18 months
Any severe hypoglycemic events in the past 6 months will be derived from self-report and from the medical record chart
0, 6, 12, 18 months
Diabetic Ketoacidosis (DKA) events
Time Frame: 0, 6, 12, 18 months
Any Diabetic Ketoacidosis (DKA) events in the past 6 months will be derived from self-report and from the medical record chart
0, 6, 12, 18 months
Diabetes-related hospitalizations
Time Frame: 0, 6, 12, 18 months
Any diabetes-related hospitalizations in the past 6 months, expressed as number of hospitalizations per person-years (P-Y) at risk will be derived from self-report and from the medical record chart
0, 6, 12, 18 months
Diabetes-related emergency department visits
Time Frame: 0, 6, 12, 18 months
Any diabetes-related emergency-department visits in the past 6 months, expressed as number of emergency department visits per person-years (P-Y) at risk will be derived from self-report and from the medical record chart
0, 6, 12, 18 months
Self-efficacy
Time Frame: 0, 6, 12, 18 months
Self-efficacy for Diabetes Self-Management Measure (SEDM) assesses self-efficacy. The score ranges from 1 to 10. All item scores are averaged to compute the score. A higher score represents a better outcome.
0, 6, 12, 18 months
Diabetes distress
Time Frame: 0, 6, 12, 18 months
Problem Areas in Diabetes Scale-Teen (PAID-T) assesses adolescent diabetes distress. The scores range from 14 to 84. A total distress score is computed by summing responses. Higher scores indicate youth perception of feeling more burdened related to T1D.
0, 6, 12, 18 months
Diabetes specific Quality of Life (QOL)
Time Frame: 0, 6, 12, 18 months
Type 1 Diabetes and Life (T1DAL) questionnaire assesses diabetes specific QOL for 12-17 year old adolescents living with T1D. Scores are transformed on a scale from 0 to 100. The total score ranges from 0 to 100. To calculate the total score, the mean is computed as the sum of all item scores divided by the number of items answered on all the scales. A higher total score represents a better outcome. The subscale scores (Daily Emotional Experiences & Daily Activities, Handling Diabetes Well, Peer Relationships, and Family Relationships) range from 0 to 100. To calculate the subscale scores, the mean is computed as the sum of the items in the subscale divided by the number of items answered on the subscale. Higher subscale scores represent a better outcome.
0, 6, 12, 18 months
Transition readiness
Time Frame: 0, 6, 12, 18 months
Readiness Assessment of Emerging Adults with Type 1 Diabetes Diagnosed in Youth (READDY) assesses diabetes-related knowledge or skill items by querying respondents on 42 total items split into 5 domains: knowledge, navigation, health behaviors, and insulin pump skills. Respondents answer on a Likert scale from "yes, I can do this" scored 5 to "Haven't thought about it" scored 1. Confidence level is evaluated in each domain with a higher score indicating more confidence.
0, 6, 12, 18 months
Cost effectiveness (HbA1c)
Time Frame: 12 and 18 months
Cost effectiveness of access to Support-t in addition to usual care compared with usual care in terms of incremental cost effectiveness ratio (ICER) for HbA1c
12 and 18 months
Cost effectiveness (self-efficacy)
Time Frame: 12 and 18 months
Cost effectiveness of access to Support-t in addition to usual care compared with usual care in terms of incremental cost effectiveness ratio (ICER) for self-efficacy
12 and 18 months
Cost effectiveness (diabetes distress)
Time Frame: 12 and 18 months
Cost effectiveness of access to Support-t in addition to usual care compared with usual care in terms of incremental cost effectiveness ratio (ICER) for diabetes distress
12 and 18 months
Cost effectiveness (QOL)
Time Frame: 12 and 18 months
Cost effectiveness of access to Support-t in addition to usual care compared with usual care in terms of incremental cost effectiveness ratio (ICER) for QOL
12 and 18 months

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
Satisfaction with Support-t platform - T1D patient
Time Frame: 6, 12, 18 months
Satisfaction will be rated on a scale from 1 to 10. Higher scores indicate greater satisfaction with the platform.
6, 12, 18 months
Experience with Support-t platform (Barriers, facilitators, satisfaction, fidelity) - T1D patient
Time Frame: 18 months
Individual interviews to understand the experience in the context of implementation of the Support-t platform (Barriers, facilitators, satisfaction, fidelity) using qualitative descriptive methodology
18 months
Experience with Support-t platform (Barriers, facilitators, satisfaction, fidelity) - Health Care Provider
Time Frame: 12 months
Individual interviews to understand the experience in the context of implementation of the Support-t platform (Barriers, facilitators, satisfaction, fidelity) using qualitative descriptive methodology
12 months
Engagement with Support-t platform (T1D patient) - time in minutes on platform
Time Frame: 6, 12, 18 months
Engagement metrics will be extracted using Google analytics - time (minutes) spent on the platform
6, 12, 18 months
Engagement with Support-t platform (T1D patient) - discussion forum participation
Time Frame: 6, 12, 18 months
Engagement metrics will be extracted using Google analytics - participation on the platform discussion forum
6, 12, 18 months
Engagement with Support-t platform (T1D patient) - content accessed
Time Frame: 6, 12, 18 months
Engagement metrics will be extracted using Google analytics - specific content accessed from the platform
6, 12, 18 months
Engagement with Support-t platform (T1D patient) - total pages viewed
Time Frame: 6, 12, 18 months
Engagement metrics will be extracted using Google analytics - total pages viewed from the platform
6, 12, 18 months
Engagement with Support-t platform (T1D patient) - downloaded documents
Time Frame: 6, 12, 18 months
Engagement metrics will be extracted using Google analytics - downloaded documents from the platform
6, 12, 18 months
Engagement with Support-t platform (T1D patient) - use of calculators
Time Frame: 6, 12, 18 months
Engagement metrics will be extracted using Google analytics - use of calculators on the platform
6, 12, 18 months
Engagement with Support-t platform (Health Care Provider) - time in minutes on platform
Time Frame: 6, 12 months
Engagement metrics will be extracted using Google analytics - time (minutes) spent on the platform
6, 12 months
Engagement with Support-t platform (Health Care Provider) - content accessed
Time Frame: 6, 12 months
Engagement metrics will be extracted using Google analytics - specific content accessed from the platform
6, 12 months
Engagement with Support-t platform (Health Care Provider) - total pages viewed
Time Frame: 6, 12 months
Engagement metrics will be extracted using Google analytics - total pages viewed from the platform
6, 12 months
Engagement with Support-t platform (Health Care Provider) - downloaded documents
Time Frame: 6, 12 months
Engagement metrics will be extracted using Google analytics - downloaded documents from the platform
6, 12 months
Engagement with Support-t platform (Health Care Provider) - use of calculators
Time Frame: 6, 12 months
Engagement metrics will be extracted using Google analytics - use of calculators on the platform
6, 12 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Anne-Sophie Brazeau, PhD, School of Human Nutrition - McGill University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

October 7, 2024

Primary Completion (Estimated)

April 1, 2027

Study Completion (Estimated)

October 1, 2027

Study Registration Dates

First Submitted

June 6, 2023

First Submitted That Met QC Criteria

June 16, 2023

First Posted (Actual)

June 20, 2023

Study Record Updates

Last Update Posted (Estimated)

September 25, 2025

Last Update Submitted That Met QC Criteria

September 22, 2025

Last Verified

September 1, 2025

More Information

Terms related to this study

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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