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Obstructive Sleep ApneaNCT03062748

Predicting Cardiometabolic Risk in Mild-to-Moderate Obstructive Sleep Apnea: Inflammation vs. Apnea/Hypopnea Index

An observational study of Obstructive Sleep Apnea, run by Milton S. Hershey Medical Center at 1 site in United States.

Enrolling by invitation

Enrolling by invitation. The study team selects and invites participants, usually from an existing group of patients.

Sites and contacts
Official record
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Trial summary

The purpose of the study is to compare the relative contribution of systemic inflammation vs. Obstructive Sleep Apnea (OSA) severity (as measured by Apnea Hypopnea Index) in predicting cardiovascular and metabolic aberrations associated with mild-to-moderate obstructive sleep apnea. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Obstructive Sleep Apnea
How many people
196 participants
Where
1 siteUnited States
Study dates
1 Mar 2017to Dec 2027
Phase
Observational
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Patients with suspected OS who are being seen at the Sleep Research and Treatment Center.

Who may be able to join

  • Mild to moderate OSA (5≤ AHI <30)
  • BMI ≤ 45
  • Age ≥ 18
  • Men \& Women

Who cannot join

  • AHI ≥ 30
  • BMI >45
  • Current use of steroids or anti-inflammatory medication
  • Diagnosis of insulin dependent diabetes
  • Diagnosis of autoimmune disorder
  • Shiftwork
  • Current use of CPAP

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

United States1 site
  • Penn State College of Medicine, Penn State Milton S. Hershey Medical Center

    Hershey, Pennsylvania, 17033

Other trials in United States

About this study

The purpose of the study is to compare the relative contribution of systemic inflammation vs. Obstructive Sleep Apnea (OSA) severity (as measured by Apnea Hypopnea Index) in predicting cardiovascular and metabolic aberrations associated with mild-to-moderate obstructive sleep apnea.

Medical subject headings
Sleep Apnea, Obstructive

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Presence of the metabolic syndrome

    At least 3 of the following 5 risk factors must be met in order to have the metabolic syndrome:

    1. Elevated waist measurement (≥102 cm for men or ≥89 cm for women)
    2. Elevated triglycerides (≥150 mg/dL or use of medication)
    3. Low HDL cholesterol (<50 mg/dL for women or <40 mg/dL for men or use of medication)
    4. Elevated blood pressure (≥130 mmHg systolic or ≥ 85 mmHg diastolic or use of medication)
    5. Elevated fasting blood sugar (≥100 mg/dL or use of medication)

    Source: https://www.nhlbi.nih.gov/health/health-topics/topics/ms

    Measured: baseline

  2. Obstructive Sleep Apnea

    AHI from one night polysomnography

    Measured: baseline

  3. Markers of systemic inflammation

    CRP, IL-6, TNFa

    Measured: baseline

Secondary outcomes (2)
  1. Heart rate variability

    from polysomnography

    Measured: baseline

  2. Subjective measure of sleepiness

    Epworth Sleepiness Scale

    Measured: baseline

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted23 Feb 2017
  2. Study start1 Mar 2017
  3. Primary completionDec 2027 (estimated)
  4. Study completionDec 2027 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case only
Time perspective
Cross-sectional
Enrolment
196 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03062748
Sponsor's protocol ID
5218
Status last verified
Apr 2026
First submitted
16 Feb 2017
Last updated
23 Apr 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

An observational study of Obstructive Sleep Apnea, run by Milton S. Hershey Medical Center at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: enrolling by invitation, as of the sponsor's last update on 23 Apr 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Presence of the metabolic syndrome (time frame: baseline). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 23 Apr 2026.

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