Clinical trial Recruiting at 1 site Phase 4 Interventional Ages 18 and up

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

PhasePhase 4
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment18 (estimated)
SponsorSteno Diabetes Center Copenhagen
Academic / other
Locations1 site (Herlev)
StatusRecruiting
StartedApril 27, 2026
Main results expectedMay 1, 2027
Study endsMay 1, 2028
Registry record updatedAugust 13, 2026
Trial IDNCT07427251 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

  • Steno Diabetes Center Copenhagen
    Herlev, Denmark
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.