Personalized Meal Timing and Walking Based on Glucose Patterns in Adults With Prediabetes

This study will test whether glucose sensor data can be used to identify the time of day when adults with prediabetes are most likely to have high blood sugar after meals. Participants will first wear a continuous glucose monitor and wrist activity monitor and record meal times for 10 days. These data will be used to classify each participant's personal "glycemic vulnerability window," such as morning, evening, or generally variable patterns. Participants will then be randomly assigned to either personalized meal timing plus a short walk after their most vulnerable meal, or to an attention-matched control group receiving sleep hygiene and general step-count advice. The main outcome will be the change in post-meal glucose exposure during each participant's vulnerable window after 4 weeks.

NCT Number	NCT07618663
Lead Sponsor	Shifa International Hospital
Conditions	Prediabetes, Prediabetes (Insulin Resistance, Impaired Glucose Tolerance), Prediabetes or Diabetes
Enrollment	105 participants
Start Date	2026-06-01
Primary Completion	2026-06-30 (estimated)
Study Completion	2026-07-26 (estimated)
Updated on ClinicalTrials.gov	2026-07-28