Effects of Transcutaneous Auricular Vagus Nerve Stimulation on Appetite

This study tests a new way to help control appetite. Researchers will use a wearable device on the ear. This device sends gentle electrical pulses to a nerve. This is called vagus nerve stimulation. The main goals of this study are: * To see if this device helps people eat less. * To check if it lowers feelings of hunger. * To measure how it changes responses to food cues. Healthy adult women will join this study. Each person will have two study visits. At one visit, the device will be turned on. At the other visit, the device will be off. This is a fake or "sham" treatment. During each visit, researchers will: * Give a standard meal for 30 minutes. * Measure how much food each person eats. * Ask questions about hunger and fullness. * Use computer tasks to check food cravings. This study may find a safe, medicine-free way to manage eating habits.

NCT Number	NCT07444177
Lead Sponsor	Seoul National University Hospital
Conditions	Appetite Regulation, Food Intake, Obesity, Eating Behaviour
Enrollment	60 participants
Start Date	2026-01-12
Primary Completion	2026-02-12 (estimated)
Study Completion	2026-02-12 (estimated)
Updated on ClinicalTrials.gov	2026-03-04