Plain-English translation of NCT04771403 on ClinicalTrials.gov ↗ · Source last updated · Translation generated · How we translate trials
Read our Type 1 diabetes research guide →This study doesn't follow the usual testing phases — it may be an observational study or a different type of research.
This trial tested and compared two different automated insulin delivery systems — called MPC and FMPD — in people with type 1 diabetes. Participants wore an insulin pump and a glucose monitor while going about their normal day and doing exercise. The researchers wanted to see which system kept blood sugar levels better controlled, especially during physical activity.
People with type 1 diabetes need to carefully manage their insulin, especially when exercising, because physical activity can cause blood sugar to drop unpredictably. This trial was designed to see which of these two automated systems could better protect against dangerous blood sugar swings during real-world situations like exercise.
Participants came to the research clinic for two separate 76-hour study visits (about 3 days each), wearing an automated insulin pump and a continuous glucose monitor. During each visit, they ate meals at the clinic, did aerobic exercise both at the clinic and at home, and wore a smartwatch to track activity. One visit tested the MPC system while the other tested the FMPD system, and researchers measured how well each system kept blood sugar in a healthy range throughout the day and during exercise.
AI-generated summary from trial data · Oct 12, 2026 · Not medical advice
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