AzTrials
AzTrials

Obstructive Sleep ApneaNCT01025440

An Investigation to Test the Efficacy of the High Flow (HF) Continuous Positive Airway Pressure (CPAP) in Patients With Obstructive Sleep Apnea (OSA)

A study testing Continuous Positive Airway Pressure in people with Obstructive Sleep Apnea, run by Fisher and Paykel Healthcare at 1 site in Germany.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

Phase One: High Flow (HF) CPAP (HF-CPAP) Titration: Participants will attend the sleep lab to undergo a comprehensive split-night respiratory PSG. Each participant will be randomized to one of 20 L/min or 35 L/min of CPAP for the first half of the night and swapped to the alternate flow rate for the second half o the… 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?
Continuous Positive Airway Pressure
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
25 participants
Where
1 siteGermany
Study dates
Nov 2009to May 2010
Phase
Interventional
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

  • Aged ≥ 18 years.
  • AHI > 15 events per hour and ≥ 90% of events must be Hypopneas.

Who cannot join

  • Any medical condition which contraindicates the use of CPAP or AutoCPAP. See Appendix D for this list.
  • Requires supplemental oxygen.
  • Unstable cardiovascular disease (untreated or resistant hypertension acceptable).
  • Unstable psychiatric disease.
  • Other significant sleep disorder.
  • Inability to tolerate CPAP due to nasal obstruction or claustrophobia, as determined by the investigation investigator.
  • Any known factor or disease that might interfere with treatment compliance, investigation conduct or interpretation of the results such as psychiatric disease, history of non compliance to medical regimens, or unwillingness to comply with investigational requirements.
  • Participation in another clinical investigation in the previous month.

Trial locations and contacts

1 site in 1 country.

Germany1 site
  • HELIOS-Klinik Hagen Ambrock

    Ambrocker Weg 60, Hagen, D 58091

Other trials in Germany

About this study

Official title: An Investigation to Test the Efficacy of a Novel CPAP Concept to Reduce the Apnea Hypopnea Index of Patients With Obstructive Sleep Apnea

Phase One:

High Flow (HF) CPAP (HF-CPAP) Titration:

Read more

Participants will attend the sleep lab to undergo a comprehensive split-night respiratory PSG. Each participant will be randomized to one of 20 L/min or 35 L/min of CPAP for the first half of the night and swapped to the alternate flow rate for the second half o the night.

At the completion of night 3 participants will be categorized as responders or non-responders. Only responders will continue to Phase 2 of the investigation.

Phase Two:

HF-CPAP compared with CPAP:

Participants will attend the sleep lab to undergo a comprehensive overnight respiratory PSG. Each participant will be randomized to HF-CPAP at a flow rate of 35 L/min or to conventional CPAP at their therapeutic pressure. They will spend the entire night on this treatment arm. Thew following night participants will undergo the alternative treatment arm for the duration of the night.

Read the detailed description

Each patient will complete a clinical consultation followed by admission to the HELIOS Klinik Hagen-Ambrock facility to undergo routine assessment, diagnosis and CPAP titration (if necessary) of OSA. This will be performed according to the routine clinical care procedures and protocols of the site. The eligibility of each participant will be established during these routine clinical care nights. After night 2 eligible participants will be offered participation in the investigation.

Phase One:

Night 1 (Routine Clinical Care) Participants will attend the HELIOS Klinik Hagen-Ambrock sleep lab to undergo a comprehensive overnight diagnostic PSG, in order to establish the existence and severity of OSA. If the participant has

  1. a positive diagnosis of OSA with an AHI > 15 events/hr and
  2. ≥ 90% of all events are Hypopneas they will be eligible to progress to Night 3. Night 2 (Routine Clinical Care) Participants will attend the HELIOS Klinik Hagen-Ambrock sleep lab to undergo a standard CPAP titration, in order to determine their therapeutic CPAP pressure. At this stage, if the participant is eligible, they will be offered participation in the investigation. If potential participants are ineligible or unwilling to participate, they will continue along the routine clinical care path.

Night 3 (Flow Titration) Consented participants will attend the HELIOS Klinik Hagen-Ambrock sleep lab to undergo a comprehensive split-night respiratory PSG.

Each participant will be randomized to one of 20 L/min or 35 L/min of HF-CPAP for the first half of the night. A minimum of three hours on this flow must be recorded on the PSG before participants can be swapped to the alternate flow. Three hours on the alternate flow is also required for this half of the night to be deemed successful.

Responder/Non-responder Determination At the completion of night 3 participants will be categorized as responders or non-responders.

Only responders will continue to Phase 2 of the investigation. A responder is someone who;

  1. Achieves a > 50% reduction in AHI and
  2. Achieves an RDI < 10 events/hr. Investigation Break Before responders progress to Phase Two participants will be sent home for 1 week. During this time they will be instructed to undertake CPAP treatment. Their CPAP device will be set to their therapeutic pressure which was determined on Night 2.

Phase Two:

Night 4 (HF-CPAP compared with CPAP) Participants will attend the HELIOS Klinik Hagen-Ambrock sleep lab to undergo a comprehensive overnight respiratory PSG.

Each participant will be randomized to OpenCPAP at a flow rate of 35 L/min or to conventional CPAP at their therapeutic pressure. They will spend the entire night on this treatment arm.

Night 5 (HF-CPAP compared with CPAP) Participants will attend the HELIOS Klinik Hagen-Ambrock sleep lab to undergo a comprehensive overnight respiratory PSG.

Participants will be swapped to the alternative treatment arm, either HF-CPAP at a flow rate of 35 L/min or to conventional CPAP at their therapeutic pressure. They will spend the entire night on this treatment. In the morning at completion of the PSG, participants will be asked which treatment Night (4 or 5) they preferred.

Being tested
Continuous Positive Airway Pressure
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.

  • Continuous Positive Airway PressureDevice

    Also called Positive airway pressure

    Continuous Positive Airway Pressure (CPAP) Dose: A flow (35 L/min) or pressure (btw 4 and 20 cmH20 -individual to each subject) is set on the device.

    Duration: 1 night - the duration of the subject's sleep period (minimum of 3 hrs of sleep required)

    Duration:

Study groups in NCT01025440
Study groupRoleWhat they receive
CPAPActive comparatorContinuous Positive Airway Pressure (CPAP) is the gold-standard treatment for OSA. CPAP mechanically splints the upper airway open during sleep to prevent collapse and in this way ameliorates OSA. Dose: The CPAP pressure will be set to the individual subject's therapeutic pressure -as determined by PSG on Night 2. Duration: 1 night - the duration of the subject's sleep period (minimum of 3 hrs of sleep required)
Receives: Device: Continuous Positive Airway Pressure
HFCPAPActive comparatorContinuous Positive Airway Pressure (CPAP) is the gold-standard treatment for OSA. CPAP mechanically splints the upper airway open during sleep to prevent collapse and in this way ameliorates OSA. Dose: During HF CPAP 35 L/min wil be administered. Duration: 1 night - the duration of the subject's sleep period (minimum of 3 hrs of sleep required)
Receives: Device: Continuous Positive Airway Pressure

What is being measured

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

  1. Efficacy to treat OSA

    Measured: Nights 3, 4 and 5 (after each PSG)

Secondary outcomes (2)
  1. Sleep Quality

    Measured: Nights 3, 4 and 5 (after each PSG)

  2. Participant Treatment Preference: HF-CPAP compared with CPAP

    Measured: Night 5

Timeline

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

  1. First posted3 Dec 2009 (estimated)
  2. Study startNov 2009
  3. Primary completionMar 2010
  4. Study completionMay 2010

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
Masking
Single blind
Who is masked
Participant
Enrolment
25 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01025440
Sponsor's protocol ID
FPHC LP-CPAP09-01
Status last verified
Jun 2017
First submitted
1 Dec 2009
Last updated
19 Jun 2017
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

A study testing Continuous Positive Airway Pressure in people with Obstructive Sleep Apnea, run by Fisher and Paykel Healthcare at 1 site in Germany.

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 2 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 19 Jun 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 Germany. 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?

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?

Efficacy to treat OSA (time frame: Nights 3, 4 and 5 (after each PSG)). 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 19 Jun 2017.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in