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The Separate and Combined Glucagonotropic Effects of Glucose-dependent Insulinotropic Polypeptide and Alanine in Subjects With and Without Type 1 Diabetes

NCT06881472 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 10

Last updated 2026-04-29

No results posted yet for this study

Summary

The hormone glucose-dependent insulinotropic polypeptide (GIP) is naturally produced in the intestine during a meal and stimulates insulin secretion from the pancreas. Insulin ensures that nutrients from the meal are transported from the blood into the cells, allowing the body to use it as energy. If blood sugar levels drop too much, the body naturally releases another hormone: glucagon. Glucagon is responsible for the breakdown of nutrients inside the cells, thus causing blood sugar levels to rise again. This occurs, for example, when a person is fasting or in an energy deficit. Unfortunately, glucagon is not released in people with type 1 diabetes when blood sugar levels are low. However, it is known that GIP contributes to the secretion of glucagon during low blood sugar levels in both healthy individuals and those with type 1 diabetes.

Protein intake through the diet is broken down in the body into amino acids. It is known that the ingestion of protein and thus amino acids leads to an increase in glucagon in both healthy individuals and those with type 1 diabetes. This causes the amino acids to be converted into sugar, but also allows potentially harmful waste products from the breakdown to be converted into harmless components. The relationship between GIP and amino acids, as well as their joint effect on glucagon, is still unknown, but studies in mice have shown that if GIP and amino acids are given simultaneously, glucagon secretion will be even higher than if they were administered separately. The purpose of this study is to gain a better understanding of how the three (GIP, amino acids, and glucagon) are interconnected and affect each other and to see if the experiments conducted in mice yield the same results in healthy individuals and those with type 1 diabetes. Moreover, the secretion of glucagon, and thus the increase in blood sugar, might protect individuals with type 1 diabetes from experiencing low blood sugar. This knowledge could potentially be used for new treatment approaches in diabetes in the future.

Conditions

Interventions

DRUG

Glucose-dependent Insulinotropic Polypeptide (GIP)

GIP

DRUG

alanine

Alanine

DRUG

Saline (NaCl 0,9 %) (placebo)

Placebo

Sponsors & Collaborators

  • Asger Lund, MD

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
TRIPLE
Model
CROSSOVER

Eligibility

Min Age
18 Years
Max Age
70 Years
Sex
MALE
Healthy Volunteers
No

Timeline & Regulatory

Start
2025-01-01
Primary Completion
2026-01-16
Completion
2026-01-16

Countries

  • Denmark

Study Locations

More Related Trials

Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06881472 on ClinicalTrials.gov