Menstrual cycle timing may change how exercise impacts blood sugar in type 1 diabetes

NCT ID NCT05188014

Recruiting now Knowledge-focused Sponsor: University of Alberta Source: ClinicalTrials.gov ↗

First seen Jul 20, 2026 · Last updated Jul 21, 2026 · Updated 1 time

Summary

This study looks at how different phases of the menstrual cycle affect blood glucose changes during exercise in women with type 1 diabetes who take oral contraceptives. Participants wear a continuous glucose monitor and complete a 45-minute aerobic exercise session during both the active pill phase and the placebo pill phase. The goal is to understand whether cycle timing influences blood sugar responses, which could help women with type 1 diabetes tailor their exercise routines.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

What this could lead to: If successful, this research could help women with type 1 diabetes better manage their blood sugar during exercise by accounting for menstrual cycle timing.
What could go wrong: This is a small, early-stage observational study with only 15 participants, so findings may not apply to all women with type 1 diabetes.

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Conditions

The condition(s) this trial relates to.

type 1 diabetes mellitus

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

TYPE 1 DIABETES

Contacts and locations

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Locations

Alberta Diabetes Institute
RECRUITING

Edmonton, Alberta, T6G 2R3, Canada

Contact Phone: •••-•••-•••• Email: •••••@•••••

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