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Taking people in CanadaNo phase

Exercise and the Menstrual Cycle in Type 1 Diabetes

Key facts

Where
Edmonton, CanadaSee the site

Could this be for you?

Answer for yourself. This is not a decision: only the study team can say whether you can take part.

  • Are you between 18 and 50 years old?

Source: NCT05188014, who can take part

Where in Canada

  • Alberta Diabetes InstituteEdmonton, CanadaTaking people

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?
Print a page for my doctor

Trial details

Who runs it
University of Alberta
Trial code
NCT05188014
Record updated
20 July 2026
Original description
Female participants with type 1 diabetes using oral contraceptives will be asked to wear a continuous glucose monitor for at least three days on two separate occasions (once during the last week of active pills and once during the no pill/placebo pill phase of the menstrual cycle). An exercise session (45 minutes of aerobic exercise at 60% VO2peak on a cycle ergometer) will take place at 5 pm on the second day of glucose monitoring.Read full original descriptionShow less

Effects of the Menstrual Cycle on Blood Glucose Changes During Exercise in Women With Type 1 Diabetes Using Oral Contraceptives

Female participants with type 1 diabetes using oral contraceptives will be asked to wear a continuous glucose monitor for at least three days on two separate occasions (once during the last week of active pills and once during the no pill/placebo pill phase of the menstrual cycle). An exercise session (45 minutes of aerobic exercise at 60% VO2peak on a cycle ergometer) will take place at 5 pm on the second day of glucose monitoring.

Inclusion: type 1 diabetes diagnosed for at least 1 year; regular menses; using monophasic oral contraceptives; residing in Edmonton, Alberta and able to visit the lab at the University of Alberta.

Exclusion: history of cardiovascular disease; any musculoskeletal condition that would contraindicate exercise (e.g. sprain, strain, joint injury, etc.); HbA1c > 9.9%; use of medications (other than insulin) that would affect blood glucose levels; frequent and unpredictable hypoglycemia; change in insulin management strategy within two months of the study; use of an automated insulin delivery system; blood pressure > 140/95; severe peripheral neuropathy; active proliferative retinopathy.

ClinicalTrials.gov NCT05188014