Post-meal glucagon before exercise to keep glucose from dropping in type 1 diabetes
Official title: Low-Dose Glucagon and Automated Insulin Delivery for Prevention of Spontaneous Exercise-Induced Hypoglycemia in People With Type 1 Diabetes
Run by Steno Diabetes Center Copenhagen · NCT07427251 · Data updated 2026-11-12
In adults with type 1 diabetes using an automated insulin delivery system, the study tests whether a small dose of glucagon given before exercise helps prevent or lessen drops in blood glucose during and after moderate exercise after a meal.
Quick facts
| Phase | Phase 4 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 18 (estimated) |
| Sponsor | Steno Diabetes Center Copenhagen Academic / other |
| Locations | 1 site (Herlev) |
| Status | Recruiting |
| Started | April 27, 2026 |
| Main results expected | May 1, 2027 |
| Study ends | May 1, 2028 |
| Registry record updated | August 13, 2026 |
| Trial ID | NCT07427251 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults (≥18 years) with type 1 diabetes who use an automated insulin delivery system for at least 3 months and can count carbohydrates.
✕Probably not a fit
Participants with certain allergies or conditions or those not meeting protocol requirements may not benefit from this intervention.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This is a randomized, non-blinded, two-period crossover trial involving 18 adults with type 1 diabetes who use an automated insulin delivery system. Each participant completes two experimental visits in random order, separated by at least seven days, comparing low-dose glucagon versus carbohydrate300 mg intake before a standardized bout of moderate-intensity exercise about 90 minutes after a meal. Primary outcome is the difference in the change in plasma glucose from exercise start to its nadir during exercise and over the subsequent 2 hours between the glucagon and carbohydrate strategies. The study activates the AID system's higher target during the exercise window. Eligibility includes adults with type 1 diabetes for at least 2 years, using an AID for ≥3 months, and proficient in carbohydrate counting; several medical exclusions apply."
Why it matters
Potential benefit: If successful, this approach could help people with type 1 diabetes maintain steadier glucose during and after exercise.
How similar studies have gone: Similar strategies with glucagon or carbohydrate preloading have shown potential, but this specific postprandial pre-exercise approach in an AID context is exploratory.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Age ≥ 18 years * Type 1 diabetes ≥ 2 years * Using an automated insulin delivery system for ≥ 3 months * NovoRapid or Fiasp use ≥1 week * Proficiency in carbohydrate counting Exclusion Criteria: * Allergies to lactose or glucagon * Known or suspected allergies to glucagon or related products * History of hypersensitivity or allergic reaction to glucagon or lactose * Patients with diagnosed pheochromocytoma, insulinoma or gastroparesis * Concomitant medical or psychological conditions identified through review of medical history, physical examination and clinical laboratory analysis that, according to the investigator's assessment, makes the individual unsuitable for study participation * Lack of compliance with key study procedures at the discretion of the investigator * Females of childbearing potential who are pregnant, breast-feeding or intend to become pregnant or are not using adequate contraceptive methods (methods are considered adequate for study enrolment for females: an intrauterine device, hormonal contraception (birth control pills, implant, patch, vaginal ring or injection), a single partner who is sterile or infertile, or sexual abstinence. Contraception is required throughout the study duration. Sterilized or postmenopausal women (\>12 months since last period) are not required to use contraception) * Inability to understand the individual information and to give informed consent
Where it's running
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Steno Diabetes Center Copenhagen
Herlev, Denmark Recruiting
Study contacts
- Study coordinator: Emilie Lindkvist, MD, PhD Candidate
- Email: emilie.lindkvist@regionh.dk
- Phone: +45 21563054
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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New gene therapies VV-14299 and VV-14300 for adults with Type 1 Diabetes failing automated insulin delivery
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.