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CompletedNCT02549508Updated Nov 10, 2020Results posted

Comparison Study Using APAP With and Without SensAwake in Patients With OSA and PTSD

An interventional study of AutoCPAP with SensAwake On and AutoCPAP with SensAwake Off in Obstructive Sleep Apnea (OSA) and Post-Traumatic Stress Disorder (PTSD), sponsored by Fisher and Paykel Healthcare. Completed at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2020-11-10.

Sponsored by Fisher and Paykel Healthcare · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
85
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

The purpose of this research is to examine the application of AutoCPAP with and without SensAwake in subjects with OSA and Post-Traumatic Stress Disorder (PTSD), and evaluate whether patients achieve better sleep quality and compliance with SensAwake, compared to the same treatment without SensAwake.

Read the detailed description

Conceptually, awareness of pressure occurs only during wakefulness. Thus reducing the pressure during wakefulness may improve therapy comfort and potentially adherence without compromising therapy efficacy. SensAwake™ is a unique pressure relief technology developed by Fisher \& Paykel Healthcare which detects irregularity in the flow signal indicative of the transition from sleep to wake. When the transition from sleep to wake is detected the device promptly reduces the pressure to help facilitate a return to sleep.

It is hypothesised that AutoCPAP with SensAwake will improve patient comfort and compliance in the PTSD and OSA patients who are naïve to CPAP therapy.

The investigators will not be blinded to the study. The participants will be blinded to the study.

02

Conditions studied

  • Obstructive Sleep Apnea (OSA)
  • Post-Traumatic Stress Disorder (PTSD)
03

In context

Sleep Apnea, Obstructive

2,198 studies on the registry are indexed under Sleep Apnea, Obstructive; 470 are open to participants now.

This study's enrollment of 85 is above the median of 53 across 1,448 interventional studies indexed under Sleep Apnea, Obstructive.

Browse Sleep Apnea, Obstructive studies →

Lead sponsor

Fisher and Paykel Healthcare is the lead sponsor of 84 studies on the registry; 15 are open to participants now.

Of its 11 completed or terminated interventional studies of FDA-regulated products, 10 (91%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

Male and female subjects > 18 years Diagnosed with OSA by a practicing sleep physician, within the last six months Diagnosed with post-traumatic stress disorder as diagnosed by a behavioral health professional, and quantified by McChord PTSD checklist All races and ethnicities will be included Naïve to CPAP therapy (has not used CPAP within the last 5 years)

Exclusion criteria

Exclusion Criteria:

\< 18 years of age if mental status is questionable, the patient will be excluded at the discretion of the consenting provider Unable/unwilling to follow the directions necessary for CPAP use Patients contraindicated for CPAP/AutoCPAP, at the discretion of the consenting provider

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Crossover assignment
Masking
Single (Participant)
Enrollment
85 participants (actual)

Study arms

  • Experimental
    AutoCPAP with SensAwake On, then SenAwake Off

    Participants will start AutoCPAP treatment with SensAwake on for 4 weeks. After 4 weeks, the will cross over to SensAwake off for another 4 weeks.

    Device: AutoCPAP with SensAwake On · Device: AutoCPAP with SensAwake Off

  • Experimental
    AutoCPAP with SensAwake Off, then SensAwake On

    Participants will start AutoCPAP treatment with SensAwake Off for 4 weeks. After 4 weeks, the will cross over to SensAwake On for another 4 weeks.

    Device: AutoCPAP with SensAwake On · Device: AutoCPAP with SensAwake Off

Interventions

  • DeviceAutoCPAP with SensAwake On

    The comfort feature 'SensAwake' will be turned on

  • DeviceAutoCPAP with SensAwake Off

    The comfort feature 'SensAwake' will be turned off

06

What researchers measure

Primary outcomes

  1. Adherence (Hours on Therapy)

    Hours per night averaged over total time period measured.

    Time frame: 4 weeks

Secondary outcomes

  1. Sleep Quality (Epworth Sleepiness Scale (ESS)

    The ESS is a validated questionnaire that assesses an idnviduals likelihood of falling asleep in a variety of given situations (such as having a conversation with someone or stopped a red light while driving.) Each question is given a rating between 0 and 3, with 0 being no chance of falling asleep and 3 being high chance of falling asleep. Answers are then summed together to determine the level of sleepiness an individual is experiencing with a maximum score of 24. The higher the score, the more sleepy the person is. From a clinical perspective an ESS score of 0-10 indicates a normal level sleepiness, a score of 11-14 indicates mild sleepiness, a score of 15-17 indicates moderate sleepiness and a score of 18+ indicates severe sleepiness. Results below are reported as a mean change from baseline in which negative scores indicate reduction in ESS from baseline (less sleepiness). Positive scores indicate increase in ESS from baseline (more sleepiness.)

    Time frame: Change from Baseline after 4 weeks

  2. Insomnia Severity Index (ISI)

    ISI; 0-7 = No clinically significant insomnia, 8-14 = Sub threshold insomnia, 15-21 = Clinical insomnia (moderate severity), 22-28 = Clinical insomnia (severe). Results reported in mean change from baseline. Negative scores indicate improvement in ISI, positive scores indicate increase in ISI.

    Time frame: Change from Baseline after 4 weeks

07

Results

Posted Nov 10, 2020

Participant flow

Participant flow — Overall Study
MilestoneAutoCPAP With SensAwake On First, Then SensAwake OffAutoCPAP With SensAwake Off First, Then SensAwake On
Started4738
Completed3321
Not completed1417

Outcome measures

PrimaryAdherence (Hours on Therapy)

Hours per night averaged over total time period measured.

Time frame:
4 weeks
Reported as:
Mean · Hours/night
Adherence (Hours on Therapy)
Hours/nightAutoCPAP With SensAwake OnAutoCPAP With SensAwake Off First
Adherence (Hours on Therapy)1.1 (1.1 to 4.8)0.5 (0.0 to 2.7)
SecondarySleep Quality (Epworth Sleepiness Scale (ESS)

The ESS is a validated questionnaire that assesses an idnviduals likelihood of falling asleep in a variety of given situations (such as having a conversation with someone or stopped a red light while driving.) Each question is given a rating between 0 and 3, with 0 being no chance of falling asleep and 3 being high chance of falling asleep. Answers are then summed together to determine the level of sleepiness an individual is experiencing with a maximum score of 24. The higher the score, the more sleepy the person is. From a clinical perspective an ESS score of 0-10 indicates a normal level sleepiness, a score of 11-14 indicates mild sleepiness, a score of 15-17 indicates moderate sleepiness and a score of 18+ indicates severe sleepiness. Results below are reported as a mean change from baseline in which negative scores indicate reduction in ESS from baseline (less sleepiness). Positive scores indicate increase in ESS from baseline (more sleepiness.)

Time frame:
Change from Baseline after 4 weeks
Reported as:
Mean · score on a scale
Sleep Quality (Epworth Sleepiness Scale (ESS)
score on a scaleAutoCPAP With SensAwake OnAutoCPAP With SensAwake Off
Sleep Quality (Epworth Sleepiness Scale (ESS)-2.4 ± 4.5-3.0 ± 4.4
SecondaryInsomnia Severity Index (ISI)

ISI; 0-7 = No clinically significant insomnia, 8-14 = Sub threshold insomnia, 15-21 = Clinical insomnia (moderate severity), 22-28 = Clinical insomnia (severe). Results reported in mean change from baseline. Negative scores indicate improvement in ISI, positive scores indicate increase in ISI.

Time frame:
Change from Baseline after 4 weeks
Reported as:
Mean · score on a scale
Insomnia Severity Index (ISI)
score on a scaleAutoCPAP With SensAwake OnAutoCPAP With SensAwake Off
Insomnia Severity Index (ISI)-4.2 ± 4.5-4.4 ± 4.7

Adverse events

Collected over 8 weeks. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
AutoCPAP With SensAwake On0/71 (0%)0/71 (0%)0/71 (0%)
AutoCPAP With SensAwake Off0/72 (0%)0/72 (0%)0/72 (0%)

Baseline characteristics

Age, Continuous
Age, Continuous(years)AutoCPAP With SensAwake On First, Then SensAwake OffAutoCPAP With SensAwake Off First, Then SensAwake OnTotal
Mean38.0 ± 8.037.7 ± 8.637.9 ± 8.3
Sex: Female, Male
Sex: Female, Male(Participants)AutoCPAP With SensAwake On First, Then SensAwake OffAutoCPAP With SensAwake Off First, Then SensAwake OnTotal
Female7512
Male403373
Race and Ethnicity Not Collected
Race and Ethnicity Not Collected(Participants)AutoCPAP With SensAwake On First, Then SensAwake OffAutoCPAP With SensAwake Off First, Then SensAwake OnTotal
Count of participants——0
Region of Enrollment
Region of Enrollment(participants)AutoCPAP With SensAwake On First, Then SensAwake OffAutoCPAP With SensAwake Off First, Then SensAwake OnTotal
United States473885
08

Study locations

1 site
  • Walter Reed National Military Medical Center
    Bethesda, Maryland 20889, United States
09

References and documents

Publications

  • Holley A, Shaha D, Costan-Toth C, Slowik J, Robertson BD, Williams SG, Terry S, Golden D, Andrada T, Skeete S, Sheikh K, Butler G, Collen JF. A randomized, placebo-controlled trial using a novel PAP delivery platform to treat patients with OSA and comorbid PTSD. Sleep Breath. 2020 Sep;24(3):1001-1009. doi: 10.1007/s11325-019-01936-x. Epub 2019 Nov 6. PubMed 31691105 ↗

Study documents

  • Protocol and statistical analysis plan · Jun 6, 2014

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 10, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT02549508
Lead sponsor
Fisher and Paykel Healthcare
Responsible party
Sponsor
First posted
Sep 15, 2015
Start date
Oct 2015
Primary completion
Mar 2018
Completion
May 2018
Results posted
Nov 10, 2020
Last update
Nov 10, 2020

Study contacts

Aaron B Holley, MD
principal investigator · Walter Reed National Military Medical Center
Rebecca Thomson, MA
study chair · Fisher & Paykel Healthcare

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

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