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Obstructive Sleep ApneaNCT01569022

A Randomized Cross Over Trial of Two Treatments for Sleep Apnea in Veterans With Post-Traumatic Stress Disorder

A study testing CPAP and MAD in people with Obstructive Sleep Apnea, run by VA Office of Research and Development 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

Sleep disturbances are cardinal features of Veterans with post traumatic stress disorder (PTSD). In particular, obstructive sleep apnea is reported to occur more frequently in patients with PTSD compared to those without PTSD and contribute to worsening cognitive and behavioral functions. Read more about this study

Who is it for?
Ages 18 to 70 years
Conditions the study is for
Obstructive Sleep Apnea
What is being tested?
CPAP and MAD
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
42 participants
Where
1 siteUnited States
Study dates
1 Nov 2012to 30 Mar 2017
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 18 to 70 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Consecutive patients aged 18-70 years of age
  • Documented obstructive sleep apnea by polysomnography (AHI 5 or more/hr)
  • Established diagnosis of PTSD related to any past lifetime traumatic event and have a diagnosis of current, chronic PTSD

Who cannot join

  • Central sleep apnea defined as central apnea/hypopnea >50% of the total respiratory events
  • Prior treatment for sleep apnea
  • Veterans with fewer than 4 teeth remaining in either arch
  • Coexisting narcolepsy
  • Tempo-mandibular joint disease
  • Epilepsy
  • Prominent suicidal or homicidal ideation
  • Diagnosis of dementia

Trial locations and contacts

1 site in 1 country.

United States1 site
  • VA Western New York Healthcare System, Buffalo, NY

    Buffalo, New York, 14215

Other trials in United States

About this study

Official title: A Randomized Cross Over Trial of Two Treatments for OSA in Veterans With PTSD

Sleep disturbances are cardinal features of Veterans with post traumatic stress disorder (PTSD). In particular, obstructive sleep apnea is reported to occur more frequently in patients with PTSD compared to those without PTSD and contribute to worsening cognitive and behavioral functions. Continuous positive airway pressure (CPAP) is considered the treatment of choice for OSA but adherence to CPAP in Veterans with PTSD is poor compared to the general population. The proposed study aims at comparing the efficacy, tolerability, and adherence of oral appliances-an alternative therapy to OSA- to CPAP. The study is instrumental in identifying the optimal OSA therapy for Veterans with PTSD and the OSA phenotype that would predict oral appliance response

Read the detailed description

Obstructive sleep apnea (OSA) is a prevalent disorder associated with poor neurocognitive performance and organ system dysfunction due to intermittent hypoxia and repeated arousals. The repetitive hemodynamic stresses are implicated in the increased incidence of systemic hypertension and cardiovascular diseases. Insufficient and disrupted sleep has similar negative impact on mood, attention, cognition, and behavior. In Veterans with post traumatic stress disorder (PTSD), the disturbed sleep can worsen further the cognitive-behavioral manifestations of PTSD and contributes to poor mental and physical health outcomes. Recent epidemiologic studies largely support the association of higher rates of OSA in patients with PTSD compared with the general population. Treatment of the underlying obstructive sleep disturbances with continuous positive airway pressure (CPAP) has resulted in restoration of sleep architecture, decrease daytime sleepiness, and reduction in nightmares frequency and intensity. However, adherence to treatment with CPAP is less than optimal in Veterans with PTSD. Mandibular advancing devices (MADs) are considered non surgical alternatives to CPAP and are preferred in a head to head comparison to CPAP in OSA subjects without PTSD. However, there has been no study to the investigators' knowledge that has assessed MAD in terms of clinical efficacy, compliance, and quality of sleep compared to CPAP in OSA patients with PTSD. Therefore, the investigators hypothesize that MAD is not inferior to CPAP in treating OSA effectively in Veterans with PTSD and OSA. To that end, the investigators propose to conduct a feasibility study using a randomized crossover trial of 12 weeks of CPAP and MAD in 42 consecutive outpatients with PTSD newly diagnosed with OSA separated by 2 weeks washout period.

The primary endpoint of the trial is to compare the treatment efficacy of CPAP and MAD in Veterans with PTSD and OSA. Secondary endpoints aim at: 1) comparing change in the Epworth Sleepiness Scale, SF-36, and the Pittsburgh Sleep Quality Index at end of treatment following use of CPAP versus MAD, 2) comparing adherence and short-term side effects between using CPAP and MAD in PTSD patients with OSA, and 3) determining anthropomorphic, polysomnographic, and cephalometric predictors of successful MDA response. Assessments at the end of both limbs comprise evaluation of quality of sleep, daytime sleepiness, quality of life, and side effects of treatment. Compliance with each therapy will be measured at the end of each treatment period.

The results of the trial are pivotal in determining the efficacy, tolerability, and adherence to MAD compared to CPAP in Veterans with PTSD and OSA. This feasibility study would form the basis of a future trial examining the effectiveness of various therapeutic modalities for OSA on PTSD symptomatology and progression.

Being tested
CPAP, MAD
Keywords
post traumatic stress disorder, continuous positive airway pressure, oral appliance
Medical subject headings
Sleep Apnea, Obstructive, Stress Disorders, Post-Traumatic

What participants receive

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

  • CPAPDevice

    CPAP Treatment for 12 weeks

  • MADDevice

    MAD Treatment for 12 weeks

Study groups in NCT01569022
Study groupRoleWhat they receive
CPAP First, MADActive comparatorCPAP treatment for sleep apnea CPAP: CPAP Treatment for 12 weeks MAD: MAD treatment for 12 weeks
Receives: Device: CPAP; Device: MAD
MAD First, CPAPExperimentalMAD treatment for sleep apnea MAD: MAD Treatment for 12 weeks CPAP: CPAP treatment for 12 weeks
Receives: Device: CPAP; Device: MAD

What is being measured

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

  1. Residual Apnea Hypopnea Index

    The primary endpoint of the study was tested by comparing the upper limit of the 95% confidence interval for the CPAP-MAD difference in residual AHI with the a priori noninferiority margin using the paired t test

    Measured: up to 12 weeks

Secondary outcomes (3)
  1. Health Outcomes

    Health outcomes including ESS, PCL-M, and PSQI. ESS is a short questionnaire validated to measure excessive daytime sleepiness in patients with OSA 17. It measures the likelihood of falling asleep in eight different situations, with a score of 0-3 for each situation. The sum of individual scores for the eight items gives the final ESS score, ranging from 0-21. An ESS score >10 suggests excessive daytime sleepiness (EDS). The PSQI is a self-rating questionnaire that consists of seven dimensions. The possible scores range from 0-21, with greater than five indicative of impaired sleep quality. The PTSD Checklist is a 17-item self-report measure (1-5 points each) that assesses PTSD symptoms in relation to stressful military experiences. PTSD symptom severity scores are determined by summing the participants' answers to all 17 items from 1 ("not at all") to 5 ("extremely")(range 17-85) 14 with 5-10 point change indicating statistically significant response to treatment

    Measured: 12 weeks

  2. General Health SF-36

    The SF-36 is a generic 36-item Short Form Medical Outcomes Survey (SF-36) 16. It has eight main domains: physical functioning, role limitation due to physical problems, role limitation due to emotional problems, social functioning, mental health, energy/vitality, bodily pain, and general health perception. General Health SF36 score is coded, summed, and transformed onto a scale from 0 to 100 (worst to best possible health).

    Measured: 12 weeks

  3. Adherence to Therapy

    comparison of the number of hours per night used while on CPAP versus MAD

    Measured: 12 weeks

Timeline

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

  1. First posted2 Apr 2012 (estimated)
  2. Study start1 Nov 2012
  3. Primary completion30 Oct 2016
  4. Study completion30 Mar 2017

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
Crossover
Model description
randomized trial
Masking
None (open label)
Enrolment
42 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01569022
Sponsor's protocol ID
CLIN-005-11F
Status last verified
Nov 2017
First submitted
20 Mar 2012
Last updated
8 Nov 2017
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
No

Publications

  • El-Solh AA, Homish GG, Ditursi G, Lazarus J, Rao N, Adamo D, Kufel T. A Randomized Crossover Trial Evaluating Continuous Positive Airway Pressure Versus Mandibular Advancement Device on Health Outcomes in Veterans With Posttraumatic Stress Disorder. J Clin Sleep Med. 2017 Nov 15;13(11):1327-1335. doi: 10.5664/jcsm.6808.

    PubMed 29065960

Questions about this trial

What is this clinical trial studying?

A study testing CPAP and MAD in people with Obstructive Sleep Apnea, run by VA Office of Research and Development 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 3 inclusion and 8 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 8 Nov 2017. 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 8 Nov 2017). 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?

Residual Apnea Hypopnea Index (time frame: up to 12 weeks). 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 NCT01569022, which also lists 1 linked publication.

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 8 Nov 2017.

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