The Effects of Glucagon on Renal Regional Blood Flow in Humans Measured by Magnetic Resonance.

This study will investigating the effects of glucagon on renal blood flow in humans using MRI technology. Glucagon, a hormone produced by the pancreas, plays a key role in regulating blood sugar levels. It has been shown to affect renal function, including electrolyte balance and blood flow, especially in conditions like type 2 diabetes where abnormal glucagon levels are common. The study aims to understand how glucagon affects regional blood flow in the kidneys, specifically the cortex and medulla, and whether these effects are mediated by glucagon receptors. The study will be conducted on 10 healthy male participants aged 20-60 years. It involves three test days where participants will receive either glucagon, glucagon with a GLP-1 receptor antagonist, or placebo. Blood flow, glomerular filtration rate, and other renal functions will be measured using MRI. The study seeks to clarify whether glucagon's effects on the kidneys are linked to changes in regional blood flow and to determine if these effects are mediated solely by glucagon receptors.

NCT Number	NCT06872060
Lead Sponsor	Bispebjerg Hospital
Conditions	Kidney Diseases
Enrollment	10 participants
Start Date	2026-06-01
Primary Completion	2027-11-01 (estimated)
Study Completion	2027-11-01 (estimated)
Updated on ClinicalTrials.gov	2025-10-03