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Obstructive Sleep ApneaNCT00988351

Continuous Positive Airway Pressure (PAP) Titration and Treatment Versus Auto-adjusting PAP Treatment for Sleep Apnea

A study testing Continuous positive airway pressure and Auto-adjusting positive airway pressure treatment in people with Obstructive Sleep Apnea, run by North Florida Foundation for Research and Education 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

The purpose of this randomized prospective study is to compare the efficacy of two approaches to initiate Positive Airway Pressure (PAP) treatment in patients diagnosed as having obstructive sleep apnea (OSA) by portable monitoring (PM) (limited sleep study). Read more about this study

Who is it for?
Ages 21 to 89 years
Conditions the study is for
Obstructive Sleep Apnea
What is being tested?
Continuous positive airway pressure and Auto-adjusting positive airway pressure treatment
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
156 participants
Where
1 siteUnited States
Study dates
Feb 2010to Dec 2012
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 89 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • OSA, Apnea-hypopnea index > 5/hour

Who cannot join

  • Prior CPAP
  • Uncontrolled Depression
  • Moderate to Severe chronic obstructive pulmonary disease (COPD)
  • Hypoventilation
  • Average estimated nightly total sleep time < 4 hours
  • Shift work
Show all 13Show fewer
  • Unstable depression
  • Upper airway surgery
  • Uncontrolled Restless legs syndrome (RLS), narcolepsy
  • Use of supplemental oxygen
  • Severe congestive heart failure
  • Use of nightly potent narcotics
  • Severe obesity (BMI > 40)

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Malcom Randall VA Medical Center

    Gainesville, Florida, 32608

Other trials in United States

About this study

Official title: Portable Monitoring and APAP Treatment for Diagnosis and Treatment of OSA

The purpose of this randomized prospective study is to compare the efficacy of two approaches to initiate Positive Airway Pressure (PAP) treatment in patients diagnosed as having obstructive sleep apnea (OSA) by portable monitoring (PM) (limited sleep study). One pathway involves attended Continuous Positive Airway Pressure (CPAP) titration by PSG (full attended sleep study) followed by CPAP treatment. The other pathway involves treatment with auto-adjusting positive airway pressure (APAP)(without a titration). Study Aims: Compare PAP adherence, improvement in subjective sleepiness (Epworth Sleepiness Scale), reaction time (Psychomotor vigilance test), quality of life by the Functional Outcomes of Sleep Questionnaire (FOSQ), and PAP satisfaction (PAP satisfaction questionnaire) between the two study arms.

Read the detailed description

RESEARCH PLAN: All patients being evaluated for possible OSA are required to attend a Sleep Education and Evaluation Class before having a sleep study. At this class they receive information on sleep apnea, PAP treatment, and the types of sleep studies. They also complete a sleep questionnaire to identify co-existing sleep disorders and important co-morbid medical conditions. Screening of the sleep questionnaire and the patient's medical record is part of routine care to identify patients needing a diagnostic PSG and/or an attended titration. At the end of the class, participation in the current study will be offered the patients. Those signifying interest in being part of the research study and meeting inclusion and exclusion criteria will be contacted to participate in the study. Once they sign an informed consent they will be randomized to one of the two clinical pathways.

METHODS: Study visits:

Before informed consent (routine clinical care)

  1. Sleep Education and Evaluation Class (education about OSA, sleep studies, and OSA treatment). Patients complete screening sleep and medical history questionnaires.
  2. Determination of patient interest in participating in the current study and review of inclusion/exclusion criteria

After informed consent

  1. PM study
  2. Randomization if the Portable monitoring (PM) study is diagnostic of OSA. If not, the patient will be offered a diagnostic PSG. If this is positive, they will have APAP treatment. If both the PM and PSG are negative for OSA the patient exits the study but will be followed in sleep clinic.
  3. PSG for CPAP titration (PSG arm only).
  4. CPAP/APAP setup - patient fills out Epworth Sleepiness Scale (ESS) and Functional Outcomes of Sleep Questionnaire (FOSQ). The same Research coordinator/Respiratory therapist will setup the units, fit masks, and instruct the patients on the use of their device. Patients being treated with CPAP or APAP will be in separate classes.
  5. Telephone contact within 7 days of setup with early intervention for PAP problems if needed.
  6. Clinic visit 6 weeks after starting treatment: download objective adherence, ESS, FOSQ, and PAP satisfaction questionnaire.
Being tested
Continuous positive airway pressure, Auto-adjusting positive airway pressure treatment
Keywords
sleep apnea, positive airway pressure, portable monitoring, auto positive airway pressure
Medical subject headings
Sleep Apnea, Obstructive, Sleep Apnea Syndromes

What participants receive

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

  • Continuous positive airway pressureDevice

    Also called CPAP

    continuous positive airway pressure determined by polysomnography titration

  • Auto-adjusting positive airway pressure treatmentDevice

    Also called AutoCPAP, APAP

    Pressure range 4-18 centimeters of water (cm H2O)

Study groups in NCT00988351
Study groupRoleWhat they receive
PSG CPAP titration then CPAP treatmentActive comparatorPatients diagnosed with sleep apnea will have a continuous positive airway pressure (CPAP) titration with polysomnography (PSG) followed by continuous positive airway pressure (CPAP) Treatment
Receives: Device: Continuous positive airway pressure
Auto-Adjusting Positive Airway PressureActive comparatorFollowing diagnosis of obstructive sleep apnea patients will be have auto-adjusting positive airway pressure treatment without a titration.
Receives: Device: Auto-adjusting positive airway pressure treatment

What is being measured

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

  1. Positive Airway Pressure Adherence (Nightly Use of Treatment)

    average nightly hours of using positive airway pressure (including 0 for nights not used)

    Measured: 6 weeks after starting treatment

Secondary outcomes (4)
  1. Change in Epworth Sleepiness Scale

    Epworth sleepiness scale (ESS) is measure of subjective sleepiness. Tendency to fall asleep in 8 situations. Total varies from zero to 24. A ESS of 10 or less is considered normal. The change in the ESS = post-treatment value - pre-treatment value. A decrease in the ESS (negative change) is consistent with less sleepiness.

    Measured: 6 weeks after starting treatment

  2. Change in Functional Outcomes of Sleep Questionnaire

    The functional outcomes of sleep questionnaire (FOSQ) is a standard quality of life measure used to assess improvement in quality of life after treatment for sleep disorders. The total FOSQ score was analyzed. The range if 5 to 20. A higher score is a better quality of life. This analysis compares the change after treatment (post treatment FOSQ - pretreatment FOSQ). A positive difference indicates an improve in the quality of life.

    Measured: 6 weeks at clinic

  3. Residual Apnea-hypopnea Index

    The PAP device estimate of residual apnea-hypopnea index (AHI, number of apneas and hypopneas per hour of patient use) an estimate of effectiveness of treatment. An AHI < 10 is considered adequate treatment and <5/hour ideal treatment.

    Measured: over first 6 weeks of treatment

  4. Treatment Pressure (Level of CPAP or 90th Percentile APAP)

    The level of CPAP used for treatment versus the 90th percentile pressure used during APAP. The 90th percentile pressure is the value that is used if one converts a patient from APAP to CPAP.

    Measured: 6 weeks clinic

Timeline

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

  1. First posted2 Oct 2009 (estimated)
  2. Study startFeb 2010
  3. Primary completionDec 2012
  4. Study completionDec 2012

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
156 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00988351
Sponsor's protocol ID
UFIRB#384-09
Status last verified
Oct 2014
First submitted
1 Oct 2009
Last updated
3 Nov 2014
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A study testing Continuous positive airway pressure and Auto-adjusting positive airway pressure treatment in people with Obstructive Sleep Apnea, run by North Florida Foundation for Research and Education 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 1 inclusion and 13 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 3 Nov 2014. 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 3 Nov 2014). 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?

Positive Airway Pressure Adherence (Nightly Use of Treatment) (time frame: 6 weeks after starting treatment). 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 3 Nov 2014.

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