NCT07039500

Brief Summary

The goal of this observational study is to learn how severe obstructive sleep apnea-hypopnea syndrome (OSAHS) affects the brain's ability to process sounds and attention in adults aged 20-60 years. The main questions it aims to answer are:

  • 50 adults with severe OSAHS (diagnosed by sleep tests)
  • 50 healthy adults matched by age and gender Participants will:
  • Complete hearing tests (MoCA)
  • Undergo a 1-night sleep test (PSG)
  • Wear an EEG cap for 1.5-2 hours while listening to sounds in a quiet room:
  • Passive task: Relax (no response needed)
  • Active task: Press a button when hearing rare sounds
  • Receive ¥75/hour compensation for their time

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
100

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Dec 2024

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

December 11, 2024

Completed
6 months until next milestone

First Submitted

Initial submission to the registry

June 6, 2025

Completed
20 days until next milestone

First Posted

Study publicly available on registry

June 26, 2025

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 10, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 10, 2025

Completed
Last Updated

August 7, 2025

Status Verified

December 1, 2024

Enrollment Period

12 months

First QC Date

June 6, 2025

Last Update Submit

August 5, 2025

Conditions

Keywords

Obstructive Sleep ApneaAuditory CognitionElectroencephalography (EEG)Oddball Paradigm

Outcome Measures

Primary Outcomes (2)

  • Amplitude of Mismatch Negativity (MMN)

    EEG-derived MMN amplitude (microvolts, μV) during oddball task. Lower values indicate impaired automatic sound change detection.

    Day 1

  • Latency of Mismatch Negativity (MMN)

    EEG-derived MMN latency (milliseconds, ms) during oddball task. Longer values indicate slower automatic processing.

    Day 1

Secondary Outcomes (3)

  • Reaction Time in Active Auditory Oddball Task

    Day 1

  • Accuracy in Active Auditory Oddball Task

    Day 1

  • Inter-Trial Phase Coherence (ITPC) in Theta/Alpha/Beta Bands

    Day 1

Study Arms (2)

Severe OSAHS Group

Adults aged 20-60 years with severe obstructive sleep apnea-hypopnea syndrome (AHI\>30 events/hour) confirmed by polysomnography (PSG). Participants undergo PSG, hearing tests (pure-tone audiometry, tympanometry), Montreal Cognitive Assessment (MoCA), and EEG recording during active/passive auditory oddball tasks measuring MMN, P300, and behavioral responses.

Healthy Control Group

Age/sex-matched healthy adults (20-60 years) with self-reported absence of snoring/sleep disorders. Participants complete hearing tests (pure-tone audiometry, tympanometry), Montreal Cognitive Assessment (MoCA), and EEG recording during identical auditory oddball tasks as the OSAHS group.

Eligibility Criteria

Age20 Years - 60 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)
Sampling MethodNon-Probability Sample
Study Population

Two distinct populations: 1. Severe OSAHS Patients: * Recruited from otolaryngology clinics at Peking University First Hospital * Diagnosed via in-lab PSG (AHI\>30) 2. Healthy Controls: * Community volunteers from Beijing area * Age/sex-matched to OSAHS group

You may qualify if:

  • All Participants:
  • Aged 20-60 years
  • Normal hearing (PTA ≤25 dB HL at 0.5,1,2,4 kHz; Type A tympanogram)
  • MoCA score ≥26
  • Willing to complete EEG testing
  • OSAHS Group Additional:
  • \- PSG-confirmed severe OSAHS (AHI \>30 events/hour)
  • Control Group Additional:
  • Self-reported absence of snoring/sleep disorders
  • No prior OSAHS diagnosis

You may not qualify if:

  • All Participants:
  • History of:
  • Schizophrenia, epilepsy, Parkinson's, TBI, or language disorders
  • Middle/inner ear diseases (otitis media, acoustic neuroma, etc.)
  • Cognitive impairment or depression/anxiety disorders
  • Chronic steroid use
  • Systemic inflammatory diseases or malignancies
  • Pregnancy or suspected pregnancy (self-reported)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Peking University First Hospital

Beijing, Beijing Municipality, China

RECRUITING

MeSH Terms

Conditions

Sleep Apnea, ObstructiveAuditory Perceptual Disorders

Condition Hierarchy (Ancestors)

Sleep Apnea SyndromesApneaRespiration DisordersRespiratory Tract DiseasesSleep Disorders, IntrinsicDyssomniasSleep Wake DisordersNervous System DiseasesAuditory Diseases, CentralRetrocochlear DiseasesEar DiseasesOtorhinolaryngologic DiseasesBrain DiseasesCentral Nervous System DiseasesPerceptual DisordersNeurobehavioral ManifestationsNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and SymptomsCognition DisordersNeurocognitive DisordersMental Disorders

Central Study Contacts

Caifeng Xia, M.D.

CONTACT

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 6, 2025

First Posted

June 26, 2025

Study Start

December 11, 2024

Primary Completion

December 10, 2025

Study Completion

December 10, 2025

Last Updated

August 7, 2025

Record last verified: 2024-12

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