NCT02130050

Brief Summary

This three-year project aims to

  1. 1.Profile the differentially expressed metabolites in healthy patients with severe Obstructive sleep apnea (OSA) before and after six-month continuous positive airway pressure (CPAP) treatment
  2. 2.Identify the candidate metabolites involved in biologic pathways attributing to OSA phenotyping and response to CPAP treatment
  3. 3.Validate candidate metabolites in the intermittent-hypoxia model of peripheral monocytes

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
24

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started Apr 2014

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
unknown

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

April 1, 2014

Completed
10 days until next milestone

First Submitted

Initial submission to the registry

April 11, 2014

Completed
21 days until next milestone

First Posted

Study publicly available on registry

May 2, 2014

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2015

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2015

Completed
Last Updated

May 2, 2014

Status Verified

April 1, 2014

Enrollment Period

1 year

First QC Date

April 11, 2014

Last Update Submit

April 30, 2014

Conditions

Keywords

Obstructive Sleep ApneaContinuous Positive Airway PressureCardiovascular diseasePolysomnographyMetabolomic

Outcome Measures

Primary Outcomes (1)

  • The expressed metabolites profiles

    Profiling the differentially expressed metabolites in control subjects and healthy patients with severe OSA before and after six-month CPAP treatment

    6 months

Secondary Outcomes (1)

  • Metabolites in the intermittent-hypoxia model of peripheral monocytes

    6 months

Study Arms (2)

OSA Patient

•male patients aged 30 to 65 yr who are newly diagnosed as severe OSA (AHI \>=30/hr)

Control subjects:

•male control subjects are recruited from Heath Check-up Center. Subjects who are matched with OSA patients at age (+/-2 yrs), body height (+/-3cm) and body weight (\<100 kg: +/-3kg, \>100 kg: +/-4kg) are screened. Only subjects who are not sleepy (ESS\<10) and have no OSA (AHI\<5/hr PSG)

Eligibility Criteria

Age20 Years - 90 Years
Sexmale
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

moderate to severe OSA from primary care clinic friends and families from recommendation of OSA patients

You may qualify if:

  • male patients aged 20 to 90 year who have daytime sleepiness (ESS\>=10)
  • newly diagnosed OSA (AHI\>30/hr) by overnight PSG but never been treated

You may not qualify if:

  • unwilling or unable to perform testing procedure
  • past or current smoking history
  • medical condition (including cardiovascular disease, chronic pulmonary disease, diabetes, endocrinologic disease, chronic renal failure, and psychiatric disease)
  • systemic inflammatory conditions (system lupus erythematosus, rheumatoid arthritis, sarcoidosis, Crohn's disease, and ulcerative colitis)
  • active neurologic event
  • active infection two weeks prior to screening
  • enrolled in other trials in the study period
  • other sleep disorders
  • sleepy driver
  • using maintenance medications
  • Control subjects
  • Age-, sex-, body weight-, height-matched subjects with enrolled OSA patients
  • non-sleepy
  • no OSA confirmed by home sleep study (AHI\<5/hr)
  • unwilling or unable to perform testing procedure
  • +8 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

National Taiwan University Hospital

Taipei, 100, Taiwan

Location

Biospecimen

Retention: SAMPLES WITHOUT DNA

Human plasma

MeSH Terms

Conditions

Sleep Apnea, ObstructiveCardiovascular Diseases

Condition Hierarchy (Ancestors)

Sleep Apnea SyndromesApneaRespiration DisordersRespiratory Tract DiseasesSleep Disorders, IntrinsicDyssomniasSleep Wake DisordersNervous System Diseases

Study Officials

  • Peilin Lee, M.D.

    National Taiwan University Hospital

    PRINCIPAL INVESTIGATOR

Study Design

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

Study Record Dates

First Submitted

April 11, 2014

First Posted

May 2, 2014

Study Start

April 1, 2014

Primary Completion

April 1, 2015

Study Completion

April 1, 2015

Last Updated

May 2, 2014

Record last verified: 2014-04

Locations