Early diagnosis and intervention for cognitive dysfunction in diabetes patients

China Diabetes Cognitive Dysfunction Early Diagnosis and Intervention Study (China-DECODE Study)

Observational The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School · NCT06650969

This study is trying to find early signs of thinking problems in people over 45 with Type 2 diabetes to help them get better care.

Quick facts

Study typeObservational
Enrollment10000 (estimated)
Ages45 Years and up
SexAll
SponsorThe Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School Academic / other
Locations1 site (Nanjing, Jiangsu)
Trial IDNCT06650969 on ClinicalTrials.gov

What this trial studies

This observational study focuses on individuals aged 45 and older with Type 2 diabetes to assess cognitive function and identify early signs of cognitive decline. Participants will undergo a series of neuropsychological tests, laboratory examinations, brain MRI, and olfactory function measurements to gather comprehensive data on their cognitive health. The study aims to address the current limitations in diagnosing and managing cognitive dysfunction in diabetes patients by collecting and analyzing various biological samples. By enhancing understanding and early intervention strategies, the study seeks to improve outcomes for this vulnerable population.

Who should consider this trial

Good fit: Ideal candidates for this study are individuals aged 45 and older who have been diagnosed with Type 2 diabetes.

Not a fit: Patients with a history of dementia or significant neurological or psychiatric disorders may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved early diagnosis and intervention strategies for cognitive dysfunction in patients with Type 2 diabetes.

How similar studies have performed: While there is limited research specifically targeting cognitive dysfunction in diabetes, similar studies have shown promise in understanding the relationship between diabetes and cognitive decline.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age ≥45 years;
* Type 2 diabetes diagnosed according to the American Diabetes Association criteria;
* Willingness and ability to complete systematic neuropsychological tests;
* Understanding of the research procedures and methods, potential benefits and risks of the trial, and sign written informed consent.

Exclusion Criteria:

* Fewer than 6 years of education;
* Left-handedness;
* Dementia;
* Acute metabolic complications such as diabetic ketoacidosis, hyperglycaemic hyperosmolar state and hypoglycaemic coma within the previous 3 months;
* History or presence of neurological or psychiatric disorders;
* Presence of hypothyroidism;
* History of malignancy, or severe kidney or liver dysfunction.

Where this trial is running

Nanjing, Jiangsu

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Type 2 DiabetesSubjective Cognitive DeclineMild Cognitive ImpairmentDementiaCognitive Dysfunction
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.