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.
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
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.
- Conditions
- 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.
Presence of the metabolic syndrome
At least 3 of the following 5 risk factors must be met in order to have the metabolic syndrome:
- Elevated waist measurement (≥102 cm for men or ≥89 cm for women)
- Elevated triglycerides (≥150 mg/dL or use of medication)
- Low HDL cholesterol (<50 mg/dL for women or <40 mg/dL for men or use of medication)
- Elevated blood pressure (≥130 mmHg systolic or ≥ 85 mmHg diastolic or use of medication)
- Elevated fasting blood sugar (≥100 mg/dL or use of medication)
Source: https://www.nhlbi.nih.gov/health/health-topics/topics/ms
Measured: baseline
Obstructive Sleep Apnea
AHI from one night polysomnography
Measured: baseline
Markers of systemic inflammation
CRP, IL-6, TNFa
Measured: baseline
Secondary outcomes (2)
Heart rate variability
from polysomnography
Measured: baseline
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.
- First posted23 Feb 2017
- Study start1 Mar 2017
- Primary completionDec 2027 (estimated)
- Study completionDec 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Obstructive Sleep ApneaStudies of the same condition, open and under way.
- More trials run by Milton S. Hershey Medical CenterThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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)
Sponsor and investigators
- Lead sponsor
- Milton S. Hershey Medical Center
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Alexandros Vgontzas, Milton S. Hershey Medical Center
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
Study at a glance
From the registry record, last updated by the sponsor on 23 Apr 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Predicting Cardiometabolic Risk in Mild-to-Moderate Obstructive Sleep Apnea: Inflammation vs. Apnea/Hypopnea Index
- ClinicalTrials.gov ID
- NCT03062748
- Acronym / sponsor ID
- 5218
- Conditions
- Obstructive Sleep Apnea
- Study type
- Observational
- Recruitment status
- Enrolling by invitation
- Enrolment
- 196 participants (estimated)
- Lead sponsor
- Milton S. Hershey Medical CenterUniversity, hospital or other
- Study start
- 1 Mar 2017 (actual)
- Primary completion
- Dec 2027 (estimated)
- Study completion
- Dec 2027 (estimated)
- First posted
- 23 Feb 2017 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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.
Study design
- Observational model
- Case only
- Time perspective
- Cross-sectional
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- Patients with suspected OS who are being seen at the Sleep Research and Treatment Center.
Key inclusion criteria (4 listed)
- Mild to moderate OSA (5≤ AHI <30)
- BMI ≤ 45
- Age ≥ 18
- Men \& Women
Key exclusion criteria (7 listed)
- AHI ≥ 30
- BMI >45
- Current use of steroids or anti-inflammatory medication
- Diagnosis of insulin dependent diabetes
- Diagnosis of autoimmune disorder
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Presence of the metabolic syndrome
Time frame: baseline
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
Obstructive Sleep Apnea
Time frame: baseline
AHI from one night polysomnography
Markers of systemic inflammation
Time frame: baseline
CRP, IL-6, TNFa
2 secondary outcomes
Heart rate variability
Time frame: baseline
Subjective measure of sleepiness
Time frame: baseline
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 23 Apr 2026.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
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.