NCT04832711

Brief Summary

We aimed to investigate the relationship between obstructive sleep apnea (OSA) risk and respiratory inflammation evaluated by the exhaled breath condensate (EBC)interleukin-6 IL-6 and plasma SP-D, based on the Berlin questionnaire (BQ) screening values in an adult, urban community in Beijing, China. Volunteers aged \>40 years were recruited from the Shichahai community of central Beijing. Their general information and disease history were recorded. OSA risk was assessed using the BQ. IL-6 in EBC and plasma SP-D were detected by enzyme-linked immunoassay (ELISA)through specimens collected on fasting. The differences in IL-6 and SP-D contents between high-risk and low-risk groups for OSA were compared, and the factors affecting their contents were analyzed.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
1,270

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started May 2009

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
completed

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

May 1, 2009

Completed
3.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2012

Completed
8 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2020

Completed
4 months until next milestone

First Submitted

Initial submission to the registry

March 28, 2021

Completed
9 days until next milestone

First Posted

Study publicly available on registry

April 6, 2021

Completed
Last Updated

October 22, 2024

Status Verified

October 1, 2024

Enrollment Period

3.6 years

First QC Date

March 28, 2021

Last Update Submit

October 21, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • Correlation between risk for OSA and inflammation

    The levels of EBC IL-6 and plasma SP-D were detected by ELISA. The levels of EBC IL-6 and plasma SP-D between the high- and low-OSA risk groups were compared.

    through study completion, an average of 3 year

Secondary Outcomes (1)

  • Comorbidities, inflammation and risk of sleep apnea

    through study completion, an average of 3 year

Study Arms (2)

the low-risk group for OSA

A Chinese translation of the BQ was used to classify subjects into high risk and low risk for OSA.

the high-risk group for OSA

A Chinese translation of the BQ was used to classify subjects into high risk and low risk for OSA.

Eligibility Criteria

Age40 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

The volunteers were recruited residents from the Shi Cha Hai community of Beijing, China.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Jing Ma, Pro.

Beijing, 100034, China

Location

Biospecimen

Retention: SAMPLES WITHOUT DNA

exhaled breath condensate; plasma

MeSH Terms

Conditions

Sleep Apnea, ObstructiveInflammation

Condition Hierarchy (Ancestors)

Sleep Apnea SyndromesApneaRespiration DisordersRespiratory Tract DiseasesSleep Disorders, IntrinsicDyssomniasSleep Wake DisordersNervous System DiseasesPathologic ProcessesPathological Conditions, Signs and Symptoms

Study Design

Study Type
observational
Observational Model
ECOLOGIC OR COMMUNITY
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Prof.&MD

Study Record Dates

First Submitted

March 28, 2021

First Posted

April 6, 2021

Study Start

May 1, 2009

Primary Completion

December 1, 2012

Study Completion

December 1, 2020

Last Updated

October 22, 2024

Record last verified: 2024-10

Data Sharing

IPD Sharing
Will not share

Locations