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Obstructive Sleep ApneaPhase 3BIPAPNCT00635206

Investigation of a Novel Positive Pressure Therapy to Rescue Patients Failing to Tolerate CPAP During an Initial Encounter

A Phase 3 study testing BiPap auto with Fi Flex and Standard CPAP in people with Obstructive Sleep Apnea, run by Clayton Sleep Insititute 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 primary objective outcome is the proportion of participants compliant (at least four hours of use per night for all nights) in the Auto Bilevel group compared to the CPAP group after 90 days of treatment during the investigation. Read more about this study

Who is it for?
Ages 21 to 75 years
Conditions the study is for
Obstructive Sleep Apnea
What is being tested?
BiPap auto with Fi Flex and Standard CPAP
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
51 participants
Where
1 siteUnited States
Study dates
Sep 2007to May 2009
Phase
Phase 3
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 21 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age 21-75
  • New Diagnosis of OSA with a baseline RDI ≥ 15 events/hr of sleep determined by either full night or split night PSG
  • Able and willing to provide written informed consent
  • Able to follow study procedures
  • Sub-optimal PSG titration with at least 3 hours of attempted PAP titration (defined below): and deemed by their physician as a titration failure
  • Sub-optimal PSG titration: at least one of the following:
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  • Poor sleep efficiency during titration period (sleep efficiency ≤ 70%) (participants may be on sleep medications as per standard lab CPAP protocol ) or;
  • Frequent arousals based on three seconds of alpha frequency on EEG (non PLM-related) of 20 or greater per hour during the titration portion of the study or;
  • CPAP titration aborted due to participant's request (due to intolerance), or
  • Persistent sleep disruption despite therapeutic CPAP therapy and in the judgment of the reviewing physician, suggesting a low probability to CPAP adherence

Who cannot join

  • Participation in another interventional research study within the last 30 days
  • Major uncontrolled medical or psychiatric condition such as congestive heart failure, neuromuscular disease, renal failure etc.
  • Prior CPAP or Bi-Level PAP use (within last 2 years)
  • Chronic respiratory failure or insufficiency, moderate COPD (FEV1 < 60%), or any known condition of an elevation of arterial carbon dioxide levels while awake
  • Surgery of the upper airway, nose, sinus, or middle ear within the previous 90 days
  • Presence of an untreated, diagnosable, non-OSA related sleep disorder (e.g. restless legs syndrome, insomnia, etc.)
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  • Periodic Limb movement arousal index of 10 or greater.
  • Refusal to consider further interventions to standard CPAP to optimize positive pressure therapy (e.g. different mask than what was used in lab)
  • PAP therapy otherwise medically complicated or contraindicated such as those with a difficult to size or adjust interface (mask) resulting in facial pain, skin irritation or trauma, or excessive air leaks
  • Shift workers or people experiencing jet lag
  • Known history of alcohol and or drug abuse
  • Diagnosis of Complex Sleep Apnea, (appears to be classic obstructive or mixed sleep apnea, but exhibits disruptive central apneas and periodic breathing on CPAP) 11, 12 or persistent central apnea during diagnostic PSG.
  • Diagnosis of Attention Deficit Hyperactivity Disorder
  • Chronic Hypnotic use (nightly use for three months or less)

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Clayton Slep Institute

    St Louis, Missouri, 63143

Other trials in United States

About this study

The primary objective outcome is the proportion of participants compliant (at least four hours of use per night for all nights) in the Auto Bilevel group compared to the CPAP group after 90 days of treatment during the investigation. Proportion will be calculated using the cumulative number of hours on therapy divided by the total number of days of the investigation for each participant. The mean and standard deviation of these mean therapy hours will then be calculated for each arm of the investigation. Participants with compliance of at least four hours will be classified as "compliant" and those with less than four hours will be classified as "non-compliant". The null hypothesis will be rejected if the mean of the primary objective outcome for all participants in the BiPAP® Auto with Bi-Flex® therapy arm is significantly greater than that for all participants in the CPAP therapy arm.

Secondary Measures

Read more

The secondary measures used to evaluate potentially improved adherence to BiPAP® Auto with Bi-Flex® therapy compared to CPAP therapy will include:

  • Hours of use per night, for all nights
  • Hours of use per night, for nights with therapy use
  • Device derived AHI
  • Heart Rate Variability
  • Functional Outcomes of Sleep Questionnaire (FOSQ),
  • 10 cm Visual Analog Scale (VAS) for mask comfort and satisfaction with therapy,
  • Epworth Sleepiness Scale (ESS) questionnaire
  • Psychomotor Vigilance Task
  • Attitudes toward use
  • Actigraphy (sleep continuity) and sleep diary
  • Fatigue Severity Scale
  • Daytime Functioning Scale
Read the detailed description

The hypothesis of this investigation is that the BiPAP® Auto with Bi-Flex® improves acceptance of and adherence to positive pressure therapy in participants who are newly diagnosed with OSA and who meet objective criteria for PAP failure during their initial encounter with CPAP in the sleep laboratory.

This hypothesis will be tested using a two-arm, randomized, double-blind design. Participants failing to tolerate CPAP therapy in the sleep laboratory during their titration night will be randomized to a BiPAP® Auto with Bi-Flex® titration or a CPAP titration night in the lab. Participants will then go home with their respective therapy for three months.

Being tested
BiPap auto with Fi Flex, Standard CPAP
Keywords
OSA
Medical subject headings
Sleep Apnea, Obstructive

What participants receive

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

  • BiPap auto with Fi FlexDevice

    • MinEPAP = 4 cmH2O for prescribed CPAP ≤ 10 cmH2O (use 6 cmH2O for prescribed CPAP > 10 cmH2O)
    • MaxIPAP = 25 cm H2O
    • MinPS = 2 cm H2O (cannot be adjusted)
    • MaxPS = 8 cm H2O
    • Bi-Flex setting of 3
  • Standard CPAPDevice

    CPAP ≤ 10 cmH2O (use 6 cmH2O for prescribed CPAP > 10 cmH2O)

Study groups in NCT00635206
Study groupRoleWhat they receive
1Active comparatorAuto M series device set to Bi Flex
Receives: Device: BiPap auto with Fi Flex
2Active comparatorSet to standard CPAP
Receives: Device: Standard CPAP

What is being measured

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

  1. proportion of participants compliant (at least four hours of use per night for all nights) in the Auto Bilevel group compared to the CPAP group after 90 days of treatment during the investigation.

    Measured: 90 days

Secondary outcomes (1)
  1. ASdherence to BiPAP® Auto with Bi-Flex® therapy compared to CPAP therapy will include: compliance, AHI, HRV, FOSQ, Visual Analog Scale for mask comfort & satisfaction, ESS, PVT, Attitudes toward use, Actigraphy & sleep diary, FSS, & DFS

    Measured: 90 days

Timeline

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

  1. First posted13 Mar 2008 (estimated)
  2. Study startSep 2007
  3. Primary completionMay 2009
  4. Study completionMay 2009

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 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
51 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00635206
Sponsor's protocol ID
BIPAP Rescue
Other IDs
ABF-2007-MCT-03
Acronym
BIPAP
Status last verified
Jul 2009
First submitted
6 Mar 2008
Last updated
14 Jul 2009
Results posted
No
Data monitoring committee
Yes

Publications

  • Powell ED, Gay PC, Ojile JM, Litinski M, Malhotra A. A pilot study assessing adherence to auto-bilevel following a poor initial encounter with CPAP. J Clin Sleep Med. 2012 Feb 15;8(1):43-7. doi: 10.5664/jcsm.1658.

    PubMed 22334808

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing BiPap auto with Fi Flex and Standard CPAP in people with Obstructive Sleep Apnea, run by Clayton Sleep Insititute 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 10 inclusion and 14 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 14 Jul 2009. 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.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

proportion of participants compliant (at least four hours of use per night for all nights) in the Auto Bilevel group compared to the CPAP group after 90 days of treatment during the investigation. (time frame: 90 days). 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 NCT00635206, 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 14 Jul 2009.

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