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Sleep ApneaHYPNOSNCT02454153

Hyperglycemic Profiles in Obstructive Sleep Apnea: Effects of PAP Therapy

A study testing REMStar Positive Airway Pressure and LifeStyle Counseling in people with Sleep Apnea and Diabetes, run by Johns Hopkins University at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This is a randomized control trial in people with diabetes and obstructive sleep apnea who will be randomly assigned for 3 months to PAP therapy along with healthy lifestyle and sleep education or healthy lifestyle and sleep education. Read more about this study

Who is it for?
Ages 21 to 75 years
Conditions the study is for
Sleep Apnea, Diabetes
What is being tested?
REMStar Positive Airway Pressure and LifeStyle Counseling
Could I receive a placebo?
No, everyone receives an active treatment
How many people
184 participants
Where
1 siteUnited States
Study dates
Dec 2014to 15 Mar 2020
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 21 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Type 2 diabetics
  • Age > 21 and ≤ 75 years

Who cannot join

  • Inability to consent or commit to the required visits
  • Use of insulin or other injections for diabetes
  • Weight change of 10% in last six months
  • Use of oral steroids in the last six months
  • Pulmonary disease (i.e., COPD)
  • Renal or hepatic insufficiency
Show all 21Show fewer
  • Recent MI or stroke (< 3 months)
  • Sleep-related hypoventilation
  • Obesity-hypoventilation syndrome
  • Morbid Obesity
  • Occupation as a commercial driver or operator of heavy machinery
  • Active substance use
  • Untreated thyroid disease
  • Pregnancy
  • Any history of seizures or other neurologic disease
  • Poor sleep hygiene or sleep disorder other than sleep apnea
  • Central sleep apnea
  • Variants of obstructive sleep apnea (e.g., REM-related OSA)
  • Participants not suitable for the study based on the clinical judgment
  • Use of any investigational drug within the past 30 days
  • Participating in another study

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Johns Hopkins Bayview Medical Center

    Baltimore, Maryland, 21224

Other trials in United States

About this study

This is a randomized control trial in people with diabetes and obstructive sleep apnea who will be randomly assigned for 3 months to PAP therapy along with healthy lifestyle and sleep education or healthy lifestyle and sleep education.

Read the detailed description

Research over the last decade has shown that obstructive sleep apnea (OSA) is a common condition in people with diabetes. Observational and experimental evidence also indicates that intermittent hypoxemia and recurrent arousals in OSA may alter glucose metabolism and worsen glycemic control. However, the impact of treating OSA with positive airway pressure (PAP) therapy on glycemic variability and control is not well defined. Adequately powered randomized clinical trials have yet to be performed to demonstrate whether PAP therapy for OSA in diabetics can improve glycemic variability (and control), decrease blood pressure, and reverse endothelial dysfunction. The overarching goal of this study is to determine whether PAP therapy for OSA in diabetics leads to improvements in (a) glycemic variability as assessed by self-monitoring of blood glucose and continuous monitoring of glucose; (b) glycosylated hemoglobin; (c) blood pressure; (d) endothelial function; (e) serum and urinary biomarkers; and (f) dyslipidemia.

Being tested
REMStar Positive Airway Pressure, LifeStyle Counseling
Medical subject headings
Sleep Apnea Syndromes, Diabetes Mellitus

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • REMStar Positive Airway PressureDevice

    Positive airway pressure therapy is the standard of care for managing obstructive sleep apnea

  • LifeStyle CounselingBehavioural

    Lifestyle guidelines developed by the American Diabetes Association for weight loss will be provided to all subjects.

Study groups in NCT02454153
Study groupRoleWhat they receive
REMStar Positive Airway PressureActive comparatorPositive pressure therapy is the standard of care for managing obstructive sleep apnea.
Receives: Device: REMStar Positive Airway Pressure
LifeStyle CounselingOtherLifestyle guidelines developed by the American Diabetes Association for weight loss will be provided to all subjects.
Receives: Behavioral: LifeStyle Counseling

What is being measured

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

  1. Change in Continuous Glucose Monitoring System Standard Deviation

    Continuous Glucose Monitoring Metrics - change in standard deviation between baseline and three months.

    Measured: Baseline and 3 months

Secondary outcomes (9)
  1. Mean Difference in Systolic Blood Pressure

    Mean difference between 3 months and baseline systolic blood pressures (in mmHg) by group.

    Measured: Baseline and 3 months

  2. Change in Endothelial Dysfunction as Assessed by the Reactive Hyperemic Index

    Endothelial function was measured by the EndoPAT device - difference at 3 months - baseline, by group. The outcome reported is the Reactive Hyperemic Index (RHI). The RHI is a measure of endothelial vasodilator function. The RHI is the post-to-pre occlusion peripheral arterial tone signal ratio in the occluded arm relative to the other arm, which is not occluded. Persons with worse endothelial function have a lower RHI score. Consequently, a low RHI indicates more endothelial dysfunction. A value of 1.67 or less is considered abnormal vascular tone. The reported lower and upper limits in adults with type 2 diabetes is 1.1 - 4.9.

    Measured: Baseline and 3 months

  3. Heart Rate Variability

    Measured: 3 months

  4. Change in the Epworth Sleepiness Scale

    The Epworth Sleepiness Scale measures self-reported sleep propensity or daytime sleepiness. The range of the scale is 0 to 24 (integers only), with increasing values corresponding to increasing sleepiness. A cut-point of ≥ 11 is also sometimes used to differentiate those with pathological sleepiness (≥ 11) versus those without < 11. The difference between the three month final visit - the baseline visit score is reported by group

    Measured: Baseline and 3 months

  5. Change in Post-Pre Meal Blood Glucose Levels

    The difference from baseline to three months in self-reported in blood glucose levels before and after meals (mg/dL) (post-meal - pre-meal). Data is presented for breakfast, lunch, and dinner.

    Measured: Baseline and 3 months

  6. Change in Glycosylated Hemoglobin A1c Level

    Change in point-of-care hemoglobin A1c (%) after three months.

    Measured: Baseline and 3 months

  7. Continuous Glucose Monitoring System Mean Amplitude Glucose Excursion

    Mean Amplitude Glucose Excursion in mg/dL (difference between the peaks and troughs of glucose from continuous glucose monitoring at three months).

    Measured: 3 months

  8. Continuous Glucose Monitoring System Standard Deviation

    The standard deviation of the glucose from continuous glucose monitoring at three months.

    Measured: 3 months

  9. Change in Continuous Glucose Monitoring System Mean Glucose

    Continuous Glucose Monitoring Metric - change in average glucose level (mg/dL) from baseline to three months.

    Measured: Baseline and 3 months

Timeline

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

  1. First posted27 May 2015 (estimated)
  2. Study startDec 2014
  3. Primary completion15 Mar 2020
  4. Study completion15 Mar 2020

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
184 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02454153
Sponsor's protocol ID
NA_00093188
Other IDs
R01HL117167
Acronym
HYPNOS
Status last verified
May 2021
First submitted
14 Jan 2015
Last updated
25 May 2021
Data monitoring committee
Yes

Publications

  • Aurora RN, Rooney MR, Wang D, Selvin E, Punjabi NM. Effects of Positive Airway Pressure Therapy on Glycemic Variability in Patients With Type 2 Diabetes and OSA: A Randomized Controlled Trial. Chest. 2023 Oct;164(4):1057-1067. doi: 10.1016/j.chest.2023.04.017. Epub 2023 Apr 14.

    PubMed 37062349
  • Fang M, Wang D, Rooney MR, Echouffo-Tcheugui JB, Coresh J, Aurora RN, Punjabi NM, Selvin E. Performance of the Glucose Management Indicator (GMI) in Type 2 Diabetes. Clin Chem. 2023 Apr 3;69(4):422-428. doi: 10.1093/clinchem/hvac210.

    PubMed 36738249
  • Selvin E, Wang D, Rooney MR, Fang M, Echouffo-Tcheugui JB, Zeger S, Sartini J, Tang O, Coresh J, Nisha Aurora R, Punjabi NM. Within-Person and Between-Sensor Variability in Continuous Glucose Monitoring Metrics. Clin Chem. 2023 Feb 1;69(2):180-188. doi: 10.1093/clinchem/hvac192.

    PubMed 36495162
  • Selvin E, Wang D, Rooney MR, Echouffo-Tcheugui J, Fang M, Zeger S, Sartini J, Tang O, Coresh J, Aurora RN, Punjabi NM. The Associations of Mean Glucose and Time in Range from Continuous Glucose Monitoring with HbA1c in Adults with Type 2 Diabetes. Diabetes Technol Ther. 2023 Jan;25(1):86-90. doi: 10.1089/dia.2022.0178. Epub 2022 Nov 23.

    PubMed 36108310
  • Rooney MR, Aurora RN, Wang D, Selvin E, Punjabi NM. Rationale and design of the Hyperglycemic Profiles in Obstructive Sleep Apnea (HYPNOS) trial. Contemp Clin Trials. 2021 Feb;101:106248. doi: 10.1016/j.cct.2020.106248. Epub 2020 Dec 11.

    PubMed 33316455

Questions about this trial

What is this clinical trial studying?

A study testing REMStar Positive Airway Pressure and LifeStyle Counseling in people with Sleep Apnea and Diabetes, run by Johns Hopkins University 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 2 inclusion and 21 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: finished, as of the sponsor's last update on 25 May 2021. 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?

Yes. Results are posted in the registry (first posted 25 May 2021). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Change in Continuous Glucose Monitoring System Standard Deviation (time frame: Baseline and 3 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02454153, which also lists 5 linked publications.

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 25 May 2021.

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