Integration of a Trained Language Model to Improve Glycemic Control Through Increased Physical Activity: a Fully Digital My Heart Counts Smartphone App Randomized Trial
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: Validation of language model prompts in increasing short-term physical activity, Assessment of long-term changes to physical activity and glycemic control.
- Who it may be relevant to
- Registry conditions: Type2diabetes. Basic parameters: from 18 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Center list to be confirmed — check the primary protocol.
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Overview
Type 2 diabetes (T2D) is one of the most common and fastest growing diseases, affecting 1 in 8 adults (nearly 800 million) worldwide by 2045. Sedentary behavior and increased adiposity are major risk factors for T2D. Cardiovascular disease is the leading cause of death in those with T2D, while diabetic microvascular disease, causing kidney disease, neuropathy, and retinopathy, contributes to T2D morbidity. Physical activity is one of the most potent therapies in preventing/treating T2D and its complications. Mean daily steps is a proxy for physical activity, with even modest improvements in step count (i.e., +500 steps) associated with decreased T2D and mortality. However, adherence to regular physical activity remains low in T2D patients, with short-term decreases in daily step count associated with impaired glycemic control and T2D recurrence. The investigators have developed an artificial intelligence (AI) language model (similar to ChatGPT), which can automatically generate coaching prompts to encourage physical activity by incorporating an individual's stage of change. The investigators will extend our research using the My Heart Counts (MHC) smartphone app to 1) validate the efficacy of the AI-generated prompts in patients with T2D and 2) perform a longer-term randomized crossover trial using the language model as a social accountability chatbot - encouraging participants to maintain their physical activity changes over months. The investigators hypothesize that my AI-assisted coaching prompts will significantly increase 1) mean daily step count by 500 steps in 1,000 adults recruited nationwide over a 7-day period, and 2) improve HbA1c and weight via long-term behavior change over a 24-week intervention period.
Interventions
- Behavioral Validation of language model prompts in increasing short-term physical activity
Aim 1: In preliminary data, the investigators have pre-trained an open-source language model, LLAMA, with expert-created coaching prompts based on the stages of change model for physical activity. Seven different prompts (for each day of an intervention "week") will be generated, accounting for race/ethnicity, age, gender, and stage of change, to improve personalization. Using the existing MHC app, the investigators will perform a randomized crossover trial on mean daily steps across each interv - Behavioral Assessment of long-term changes to physical activity and glycemic control
Aim 2: Using social accountability and the trained language model generating personalized coaching interventions, the investigators will conduct a long-term follow-up randomized, unblinded trial. Over a 24-week intervention period, participants will receive either a generic daily reminder to reach 10,000 steps or an AI-generated coaching prompt, with the AI group also being able to "chat" with the language model to ask for advice on maintaining their physical activity. The outcomes of this long-
Primary outcome measures
- Mean daily steps [Time frame: 7 days and 24 weeks]
Secondary outcome measures (3)
- Change in weight [Time frame: 24 Weeks]
- Change in HbA1c [Time frame: 24 Weeks]
- Weekly Active Minutes [Time frame: 7 days and 24 Weeks]
Eligibility criteria
Inclusion criteria
- Individuals aged ≥18 years old, with a clinical diagnosis of T2D, able to read and understand English, and who are physically able to walk, will be included in our study
Exclusion criteria
- Criteria that fall outside of the inclusion criteria.
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Allocation
- Randomized
- Model
- Crossover
- Masking
- Open label
- Primary purpose
- Treatment
Study locations
Center list to be confirmed — check the primary protocol.
Identifiers
NCT: NCT06596330 · 76338