CGM-guided carb awareness education for adults with Type 1 diabetes

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 randomized trial compares a CGM-informed education program (C-CARBS) to usual care in adults with Type 1 diabetes on MDIs who rarely count carbohydrates. Participants complete visits, questionnaires, and 3-day meal/insulin logs while CGM data and HbA1c are collected to evaluate changes in insulin dosing behaviors and glycemic outcomes. The intervention consists of four weekly, one-hour sessions with a Certified Diabetes Care and Education Specialist focused on using CGM trends to guide mealtime insulin dosing without relying solely on carbohydrate counting. Outcomes include insulin dosing behaviors, technology use, and glycemic measures. Enrollment targets adults 18+ with HbA1c ≥8% and not using insulin pumps or automated delivery systems.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* Adults 18 years of age or older.
* Diagnosis of diabetes for at least 1 year.
* Currently using or willing to start using a continuous glucose monitor (CGM).
* Currently using multiple daily insulin injections (MDI).
* HbA1c ≥8% at screening/baseline.
* Does not routinely use carbohydrate counting or demonstrates poor/inconsistent carbohydrate counting for mealtime insulin dosing.
* Able and willing to participate in the study visits and intervention sessions.
* Able to provide informed consent.

Exclusion Criteria:

* Use of an insulin pump or automated insulin delivery system.
* Significant medical, cognitive, or psychiatric condition that, in the investigator's judgment, would interfere with participation or completion of study procedures.

Limited life expectancy that would prevent completion of the study.

* Pregnancy or plans to become pregnant during the study period.
* Current participation in another interventional study that could affect diabetes management or study outcomes.
* Inability/unwillingess to independently use a CGM device or administer insulin.
* Any other condition that, in the investigator's judgment, would make participation inappropriate or interfere with the study's objectives.

Where it's running

• University of California Los Angeles
  Los Angeles, California, United States Recruiting

Study contacts

• Principal investigator: Estelle Everett, MD, MHS — University of California, Los Angeles
• Study coordinator: Erin Shaw, B.S
• Email: EEShaw@mednet.ucla.edu
• Phone: 310-905-1822

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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.