Type 1 Diabetes Adolescents for Healthier Lifestyles Study
T1DAL
Adapting an Adolescent Weight Management Program for a Type 1 Diabetes Population
1 other identifier
interventional
50
0 countries
N/A
Brief Summary
Before the 1990s, obesity was rare among young people with type 1 diabetes (T1D), but now it is more common. Recent studies show that over 50% of young people with T1D will have overweight or obesity within five years of being diagnosed with T1D. Both obesity and T1D increase the risk of heart disease, and combined, these risks are even higher. Intensive health behavior and lifestyle treatments (IHBLTs) are proven to be effective for treating childhood obesity. However, managing T1D creates unique challenges that require adjustments to these treatments. For example, people with T1D need to eat even when they're not hungry to treat low blood sugar, blood sugar changes can make exercise harder, and some recommended "free foods" are high in unhealthy fats. Young people with T1D are also more likely to develop eating disorders. There is a need for IHBLTs that address these specific challenges and focus on preventing eating disorders in this group. To address these needs, we developed the Type 1 Diabetes Adolescents for healthier Lifestyles (T1DAL) program, based on feedback from teenagers with T1D, their parents/caregivers, and pediatric endocrinologists. The goal of this study is to test whether the T1DAL program can improve the health and wellbeing of teens compared to usual care. In this study, about 50 teens will be randomly assigned to either the T1DAL program or to Usual Care. Those in the T1DAL group will take part in a 16-week program designed specifically for teens with T1D to improve eating habits and diabetes management. Those in the Usual Care group will continue with their regular endocrinology appointments. At the end of the study, the Usual Care group will be offered a shortened version of the T1DAL program. All participants will have their height, weight, blood glucose, eating habits, diabetes management behaviors, and mood measured at the start and end of the study. They will also answer questions to track unhealthy eating and weight control behaviors over time. Additional analyses will look at factors that may lead to these behaviors in real life. This project builds on Dr. Warnick's previous work in pediatric obesity and T1D, and it supports the NIDDK's goal of reducing diabetes-related heart problems. T1DAL could become an important public health program to improve the health of teens with T1D.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started May 2025
Typical duration for not_applicable
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
March 5, 2025
CompletedFirst Posted
Study publicly available on registry
March 17, 2025
CompletedStudy Start
First participant enrolled
May 1, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 30, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
June 30, 2027
April 3, 2025
March 1, 2025
2.2 years
March 5, 2025
April 2, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
BMI Change
Change in body mass index
baseline, 4-months
Time in Range Change
Change in time in the recommended glucose range (70-180 mg/dL)
baseline, 4-months
Secondary Outcomes (1)
Events of Unhealthy Weight Control Behaviors
baseline, 4-months
Other Outcomes (1)
Correlates of Unhealthy Weight Control Behaviors
baseline, 4-months
Study Arms (2)
T1DAL Program
EXPERIMENTALAdolescent intensive health behavior and lifestyle treatment adapted for a type 1 diabetes population
Usual Care
NO INTERVENTIONAdolescents continue their typical diabetes treatment management.
Interventions
T1DAL is a 16-week behavioral program. Teens meet in virtual groups and individually with a health coach throughout the program. Teens learn healthy lifestyle behaviors specific to living with type 1 diabetes and get opportunities to connect with other teens who are living with type 1 diabetes.
Eligibility Criteria
You may qualify if:
- Teen diagnosed with type 1 diabetes at least 6 months ago
- Teen's body mass index greater than or equal to the 70th percentile for age and sex
- Teen lives with parent/caregiver
- Teen has access to a smart phone
- Teen and caregiver speak and write in fluent English
You may not qualify if:
- Teen has a medical condition that precludes them from participating in a group activity and/or any physical activity
- Teen experiencing psychosis or suicidality
- Teen lost a significant amount of weight in the 3 months prior to the study
- Teen currently in another intensive health behavior and lifestyle treatment and/or sees a dietician more than once per month on average
- Teen currently or planning to become pregnant
- Teen unwilling to wear a continuous glucose monitor for assessments
- Teen taking a medication known to impact weight and/or appetite
Contact the study team to confirm eligibility.
Sponsors & Collaborators
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Jenny Warnick, PhD
The Miriam Hospital
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
March 5, 2025
First Posted
March 17, 2025
Study Start
May 1, 2025
Primary Completion (Estimated)
June 30, 2027
Study Completion (Estimated)
June 30, 2027
Last Updated
April 3, 2025
Record last verified: 2025-03
Data Sharing
- IPD Sharing
- Will not share
Please contact the PI for a request of de-identified data.