Clinical trial Recruiting at 1 site Observational Ages 18 and up

Exploring the link between sleep apnea and cognitive function in individuals with mild cognitive impairment

Official title: Exploring the Association of Sleep Apnea With Cognitive Function in Subjects With Subjective or Mild Cognitive Impairment

Run by The University of Hong Kong · NCT06089096 · Data updated 2026-11-12

This study is testing how sleep apnea affects thinking and memory in people with mild cognitive impairment to see if improving sleep could help their brain health.

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment250 (estimated)
SponsorThe University of Hong Kong
Academic / other
Locations1 site (Hong Kong)
StatusRecruiting
StartedMarch 7, 2023
Main results expectedDecember 31, 2026
Study endsMarch 31, 2027
Registry record updatedApril 2, 2025
Trial IDNCT06089096 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include adults aged 18 and above with a clinical diagnosis of mild cognitive impairment or subjective cognitive impairment who can communicate in Chinese.

Probably not a fit

Patients with diagnosed psychiatric illnesses or other clear organic causes of cognitive impairment may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study investigates the relationship between obstructive sleep apnea (OSA) and cognitive function in individuals diagnosed with mild cognitive impairment (MCI) or subjective cognitive impairment. It aims to assess how sleep-related symptoms and apnea episodes may contribute to neurocognitive decline. Participants will undergo a Home Sleep Apnea Test (HSAT) to evaluate their sleep patterns and apnea severity. The findings are expected to provide insights that could inform future interventions targeting sleep as a modifiable risk factor for cognitive impairment.

Why it matters

Potential benefit: If successful, this study could lead to improved strategies for managing cognitive decline in patients with sleep apnea.

How similar studies have gone: Previous studies have indicated that obstructive sleep apnea may be a modifiable risk factor for cognitive decline, suggesting potential for success in this area.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Aged 18 years and above
* Clinical diagnosis of mild cognitive impairment (MCI) based on Petersen's criteria. The criteria include the following: (1) memory problems, (2) objective memory disorder, (3) absence of other cognitive disorders or repercussions on daily life, (4) normal general cognitive function and (5) absence of dementia OR,
* Diagnosis of subjective cognitive impairment, based on the subject's own complaint of cognitive impairment but with an unremarkable assessment of the Hong Kong version of Montreal Cognitive Assessment scores
* Able to speak and read Chinese
* Adequate visual and auditory to perform a cognitive test

Exclusion Criteria:

* Diagnosed psychiatric illness with or without medication, e.g. major depressive disorder.
* Other clear organic causes of cognitive impairment, e.g. old stroke, brain tumour, dementia with Lewy body, Parkinson's disease, normal pressure hydrocephalus, neurosyphilis, autoimmune encephalitis, substance abuse, history of alcohol abuse.
* Diagnosis of major unstable illness or cancer on active treatment
* Unable to perform Home Sleep Apnea Test
* Those patients who require legal guardians

Where it's running

  • Queen Mary Hospital
    Hong Kong, Hong Kong
    Recruiting

Study contacts

  • Principal investigator: Sau Man Mary Ip, MD — School of Clinical Medicine, The University of Hong Kong
  • Study coordinator: Sau Man Mary Ip, MD
  • Email: msmip@hku.hk
  • Phone: 2255 5885

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.