This is a cross-sectional and longitudinal study to establish diagnostic models based on olfactory function assessments and odor-induced brain activation for cognitive impairment in patients with type 2 diabetes mellitus.
Age range
40 Years – 75 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Baseline cognitive performance
Timeframe: Day 1 of entry study
Baseline olfactory threshold
Timeframe: Day 1 of entry study
Baseline olfactory memory
Timeframe: Day 1 of entry study
Baseline odor-induced brain fMRI activation
Timeframe: Within 1 week after cognitive assessments
Longitudinal changes of cognitive performance
Timeframe: From baseline to 18 months' follow-up and 36 months' follow-up
Longitudinal changes of olfactory threshold
Timeframe: From baseline to 18 months' follow-up and 36 months' follow-up
Longitudinal changes of olfactory memory
Timeframe: From baseline to 18 months' follow-up and 36 months' follow-up
Longitudinal changes of odor-induced brain fMRI activation
Timeframe: From baseline to 18 months' follow-up and 36 months' follow-up