Obstructive Sleep ApneaPhase 4NCT01535586
A Randomized Cross Over Trial of Two Treatments for Obstructive Sleep Apnea in Veterans With Post Traumatic Stress Disorder
A Phase 4 study testing CPAP versus MAD in people with Obstructive Sleep Apnea, run by The VA Western New York Healthcare System.
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 years and older
- Conditions the study is for
- Obstructive Sleep Apnea
- What is being tested?
- CPAP versus MAD
- Type of treatment
- Medical device
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 42 participants
- Where
- No sites listed yet
- Study dates
- Apr 2012to Mar 2015
- Phase
- Phase 4
- Are there results?
- None posted in the registry
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
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
About this study
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 mandibular advancing devices-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 MAD response.
- Conditions
- Obstructive Sleep Apnea
- Being tested
- CPAP versus MAD
- Keywords
- CPAP, MAD, sleep apnea, PTSD
- Medical subject headings
- Sleep Apnea, Obstructive, Sleep Apnea Syndromes, Stress Disorders, Post-Traumatic
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
CPAP versus MADDevice
Cross over design
| Study group | Role | What they receive |
|---|---|---|
| CPAP | Active comparator | participants will be treated with continuous positive airway pressure (CPAP) for 12 weeks Receives: Device: CPAP versus MAD |
| MAD | Active comparator | Participants will be treated with a mandibular advancing device for 12 weeks Receives: Device: CPAP versus MAD |
What is being measured
The primary outcome is the main question the study is designed to answer.
Efficacy
The primary objective of this trial is to assess the efficacy of MAD versus CPAP in the treatment of OSA in Veterans with PTSD.Treatment will be considered efficacious (successful) when the apnea-hypopnea index is < 5 in the absence of hypoxemia defined as SvO2<90%.
Measured: 12 weeks
Secondary outcomes (1)
Adherence
Adequate adherence will be defined as device usage of >4 hr per night for 70% of days
Measured: 12 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted17 Feb 2012 (estimated)
- Study startApr 2012
- Primary completionMar 2015 (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.
- 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
- Interventional
- Phase
- Phase 4
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- None (open label)
- Enrolment
- 42 participants (estimated)
Sponsor and investigators
- Lead sponsor
- The VA Western New York Healthcare System
- Sponsor type
- US federal agency
- Responsible party
- Principal investigator, Mr. Shawn Gall, The VA Western New York Healthcare System
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01535586
- Sponsor's protocol ID
- CSR&D I01CX000478
- Status last verified
- Feb 2012
- First submitted
- 10 Feb 2012
- Last updated
- 17 Feb 2012
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 17 Feb 2012. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Randomized Cross Over Trial of Two Treatments for Obstructive Sleep Apnea in Veterans With Post Traumatic Stress Disorder
- ClinicalTrials.gov ID
- NCT01535586
- Acronym / sponsor ID
- CSR&D I01CX000478
- Conditions
- Obstructive Sleep Apnea
- Keywords
- CPAP, MAD, sleep apnea, PTSD
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- Unknown status
- Enrolment
- 42 participants (estimated)
- Lead sponsor
- The VA Western New York Healthcare SystemUS federal agency
- Study start
- Apr 2012
- Primary completion
- Mar 2015 (estimated)
- First posted
- 17 Feb 2012 (estimated)
- 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.
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 mandibular advancing devices-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 MAD response.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| CPAP | Active comparator | Device: CPAP versus MADparticipants will be treated with continuous positive airway pressure (CPAP) for 12 weeks |
| MAD | Active comparator | Device: CPAP versus MADParticipants will be treated with a mandibular advancing device for 12 weeks |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- • Consecutive patients aged 18-70 years of age
Key exclusion criteria (8 listed)
- • Central sleep apnea defined as central apnea/hypopnea >50% of the total respiratory events
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| CPAP versus MADCross over design | Device | CPAP, MAD |
Primary outcome
Efficacy
Time frame: 12 weeks
The primary objective of this trial is to assess the efficacy of MAD versus CPAP in the treatment of OSA in Veterans with PTSD.Treatment will be considered efficacious (successful) when the apnea-hypopnea index is < 5 in the absence of hypoxemia defined as SvO2<90%.
1 secondary outcome
Adherence
Time frame: 12 weeks
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 17 Feb 2012.
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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. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
Questions about this trial
What is this clinical trial studying?
A Phase 4 study testing CPAP versus MAD in people with Obstructive Sleep Apnea, run by The VA Western New York Healthcare System.
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: status not confirmed, as of the sponsor's last update on 17 Feb 2012. Status can change between updates, so confirm with the study contact before making plans.
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.
What does this phase mean?
Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Results are not available in the source record.
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?
Efficacy (time frame: 12 weeks). 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 17 Feb 2012; AzTrials last refreshed its copy on 6 Nov 2026.