CGM-Based Glycemic Analysis After ESI

The goal of this clinical study is to learn how blood glucose levels change after an epidural steroid injection (ESI) with dexamethasone in adults. It will specifically compare the glycemic response between patients with type 2 diabetes and those without diabetes. The main questions it aims to answer are: Does the injection cause higher or longer-lasting blood glucose elevation in diabetic patients compared to non-diabetic patients? How do the mean glucose level and Time in Range (TIR) change after the injection in both groups? Researchers will compare a Type 2 Diabetes group to a Non-Diabetes group to see the differences in glycemic fluctuations using a continuous glucose monitoring (CGM) device. Participants will: * Wear a small CGM sensor on their arm for about 15 days to monitor blood glucose levels continuously * Receive an epidural steroid injection containing 5 mg of dexamethasone on Day 3 * Visit the clinic 3 times (Day 1, Day 3, and Day 15) for sensor attachment, the injection procedure, and data collection

NCT Number	NCT07280780
Lead Sponsor	Korea University Anam Hospital Collaborators: The Korean Pain Society
Conditions	Type 2 Diabetes (T2DM), Hyperglycemia, Radicular Pain, Spinal Stenosis, Intervertebral Disc Herniation
Enrollment	36 participants
Start Date	2026-08-05
Primary Completion	2026-12-20 (estimated)
Study Completion	2026-12-31 (estimated)
Updated on ClinicalTrials.gov	2026-08-12