Taking people in CanadaNo phase
Exercise Timing Compared in Adults With Type 1 Diabetes
Tests aerobic exercise before breakfast against exercise after breakfast in adults with type 1 diabetes.
Key facts
- Who runs it
- University of Alberta
- Where
- Edmonton, CanadaSee the site
- Trial code
- Registry title
- Fasted Exercise Training in Type 1 Diabetes (FED-T1D)
- Status
- Recruiting
- People taking part
- 20 people, planned
- Started
- 1 Jan 2025
- Expected to end
- Apr 2027
- Type of study
- Interventional, 2 groupsOne group gets an existing treatment, for comparison.
- Treatments tested
- Fasted Exercise
- Postprandial Exercise
- Record updated
- 8 May 2026
Who can take part
AI summary
From the trial's eligibility criteria. Machine-read from the registry text on this page, so it can be wrong. The registry text below and the trial team decide who can take part.
The trial is looking for adults with type 1 diabetes who use an insulin pump and a CGM. It compares exercise before breakfast with exercise after breakfast over 12 weeks.
- Age
- 18 to 55 years
- Sex
- All sexes can join.
- Disease stage
- Type 1 diabetes for 5 or more years. HbA1c 7.0-9.9% (53–85 mmol/mol). BMI of 25 kg/m2 or above and a waist size above the set limit (for example 80cm (31 in) for females).
- Earlier treatment
- Must use an insulin pump with no change in treatment type for more than 2 months. Must use rapid or ultra-rapid acting insulin and a CGM.
- Biomarker or test result
- HbA1c 7.0-9.9% (53–85 mmol/mol).
Main reasons for not taking part
- Major complication in the last 3 months, such as severe low blood sugar needing help or diabetic ketoacidosis
- Diabetes complications or other problems that limit exercise
- Uncontrolled high blood pressure (above 160 systolic or 100 diastolic)
- Pacemaker or other implanted device that is not safe for MRI
- Pregnancy or breastfeeding
The registry criteria, word for word
Show all 16 criteriaShow less
Who can take part
- Clinical diagnosis of type 1 diabetes for 5 or more years
- Treatment using an insulin pump with no change in treatment modality for > 2 continuous months and willing to share CGM data with the research team. Insulin delivery can be managed using either manual open-loop system (non-AID) or a hybrid closed loop (AID) systems
- Using rapid (e.g., Aspart, Lispro or Glulisine) or ultra-rapid (e.g., FiAsp) acting insulin analogs
- HbA1c 7.0-9.9%
- Have BMI of 25 kg/m2 or above
- Have waist circumference associated with central obesity/metabolic syndrome as per Diabetes Canada definition; 94cm for males of European, Sub-Saharan African, Eastern Mediterranean and Middle Eastern descent; 90cm for males of South Asian, Chinese, Japanese, South and Central American descent; 80cm for females
- No history of stroke, myocardial infarction, or coronary artery disease
- Not wearing implantable device such as a pacemaker, neurostimulators, aneurysm clips, metal fragments, epicardial electrodes, cochlear implants, magnetic ocular implants, penile implants, magnetic tissue expander, some types of breast implants, magnetic orthopedic implants, magnetic dental implants, hearing Aids, intravascular implants, for example VCI filters, coils, stents, cardiac septum implants, ventricular bypass devices
- Use a CGM in routine diabetes management
Who cannot take part
- Major complication within the previous 3 months (e.g., severe hypoglycemia requiring assistance, diabetic ketoacidosis, or cardiovascular event)
- Use of an injection-based insulin therapy (ex. multiple daily injections or combined pump and injection-based delivery)
- Restriction in aerobic or resistance exercise due to significant diabetes complications (e.g., severe peripheral neuropathy, active proliferative retinopathy, etc.) or other type of limitations (e.g., orthopedic, severe arthritis, etc.)
- Uncontrolled hypertension (e.g., blood pressure >160 mmHg systolic or >100 mmHg diastolic)
- Implanted device, material, or having a condition contraindicated to MRI
- Ongoing pregnancy or breastfeeding
- Inability to give consent
Check if you might fit
Answer for yourself. This is not a decision: only the study team can say whether you can take part.
- Are you between 18 and 55 years old?
Where in Canada
- University of AlbertaEdmonton, CanadaContact: Normand Boule, PhDTaking people
About the trial
What the trial wants to find out
This study compares aerobic exercise training performed before breakfast (i.e., in the fasted state) to similar training performed after breakfast in people with type 1 diabetes. Training will take place over 12 weeks.
The 2 groups in the trial
- Fasted ExerciseTreatment being tested
Exercise training will be performed in the fasted state (i.e., before breakfast).
- Postprandial ExerciseExisting treatment, for comparison
Exercise will be performed in the postprandial period (i.e., after breakfast)
Questions to ask the study team
- How often do I need to come in, and for how long each time?
- Are travel costs paid?
- Can I keep my own doctor?
- What happens if I want to stop?
Contact the study team: see the registry record → Contacts and Locations
Print a page for my doctorData and sources
- Registry record
- Listed on ClinicalTrials.gov.
- Official title
- Exercise Training Before (Fasted) Versus After (Fed) Breakfast in Type 1 Diabetes
- Plain-language title
- Exercise Timing Compared in Adults With Type 1 DiabetesGenerated from the registry record. The registry title is the official one.
- AI summary
- From the trial's eligibility criteria. Read by machine on 12 November 2026.
- Fit questions
- Built from NCT06748963, who can take part
- Record updated
- 8 May 2026