Help adults with type 1 diabetes build and keep regular exercise habits

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This remote study will deliver a mobile application that combines personalized encouragement, health coaching, and data-driven feedback from continuous glucose monitors, activity trackers, mood, and sleep patterns to promote regular exercise. Participants who are 30–65 years old with insulin-deficient diabetes and currently exercise less than once per week will use the app and wearable devices while sharing device data with the research team. The intervention emphasizes self-monitoring and tailored messages to support safe, frequent activity and better glucose management around exercise. All study activities are conducted remotely, with no required in-person visits to the coordinating site at Yale School of Medicine.

Why it matters

Who can join: the full rules

Inclusion criteria:

* 30-65 years old inclusive
* Diagnosis with type 1 diabetes (T1D) or other insulin deficiency diabetes (latent autoimmune disease of adulthood, diabetes secondary to pancreatitis)
* Less than 1.0 exercise sessions per week
* Smartphone ownership
* English literacy
* Under regular care by a healthcare provider (1+ appointments per year)
* Home Broadband wireless Internet or cell phone network
* Using continuous glucose monitor (CGM) and sharing data with medical record for at least 6 weeks
* Using insulin pump or pen and sharing data with medical record for at least 6 weeks

Exclusion criteria:

* Diabetic ketoacidosis not clearly related to pump site failure in past 6 months
* \>1 episode of severe hypoglycemia (altered mental and/or physical status requiring assistance from another person for recovery) in past 6 months
* A1c ≥10.0%
* Resting blood pressure \>160mmHg systolic or \>100 mmHg diastolic.
* Myocardial infarction or angina in past 12 months
* Uncontrolled arrhythmia (e.g., atrial fibrillation with rapid ventricular response, new onset atrial fibrillation, ventricular tachycardia, escape rhythms)
* Congestive heart failure (stage 3 or 4)
* Exercise-induced asthma (not controlled on inhalers)
* Chronic obstructive pulmonary disease (requiring home oxygen)
* Renal failure
* Pregnancy
* Cognitive impairment
* Severe retinopathy or neuropathy.
* Other chronic disease or physical disability that would influence exercise intervention (e.g., recent spinal surgery)

Where it's running

• Yale School of Medicine
  New Haven, Connecticut, United States Recruiting

Study contacts

• Principal investigator: Garrett Ash, PhD, CSCS — Yale University
• Study coordinator: Yashvi Verma, BS
• Email: activity@yale.edu
• Phone: 203-444-0678

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.