NCT00681083

Brief Summary

Patients who have Obstructive Sleep Apnea (OSA) may have different Continuous Positive Airway Pressure (CPAP)when titrated with different levels of humidification. It is hypothesised that patients with ThermoSmart® technology (heated breathing tube technology) will have lower titrated pressures than those who are titrated using conventional humidification (non heated breathing tube).

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
26

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Apr 2008

Shorter than P25 for not_applicable

Geographic Reach
1 country

2 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

April 1, 2008

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

May 19, 2008

Completed
2 days until next milestone

First Posted

Study publicly available on registry

May 21, 2008

Completed
1 month until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2008

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2008

Completed
11 years until next milestone

Results Posted

Study results publicly available

June 12, 2019

Completed
Last Updated

June 12, 2019

Status Verified

May 1, 2019

Enrollment Period

3 months

First QC Date

May 19, 2008

Results QC Date

April 30, 2019

Last Update Submit

May 22, 2019

Conditions

Keywords

Obstructive Sleep ApneaHumidificationContinuous Positive Airway Pressure

Outcome Measures

Primary Outcomes (1)

  • Titration Pressures After Treatment Nights

    Each night, the participant underwent a CPAP titration to determine their therapeutic pressure. During a titration, a sleep technician manually adjusts the participants pressure to determine which pressure is best for that individual in reducing their Apnea Hypopnea Index (AHI) which is the measure of Obstructive Sleep Apnea (OSA) severity. Titration pressures for each group were compared to see if there was any impact of having a heated breathing tube versus a non heated breathing tube on titration pressure.

    End of titration night

Secondary Outcomes (1)

  • Relationship Between the Intervention (Heated Breathing Tube vs Non Heated Breathing Tube) and Total Sleep Time

    End of titration night

Study Arms (2)

1

EXPERIMENTAL

Heated breathing tube

Device: Heated breathing tube (CPAP with ThermoSmart)

2

ACTIVE COMPARATOR

Non heated breathing tube

Device: Non heated breathing tube (CPAP with conventional humidification)

Interventions

CPAP with ThermoSmart - heated passover humidifier, with heated breathing tube

Also known as: ThermoSmart
1

CPAP with conventional humidification - heated passover humidifier, no heated breathing tube

Also known as: Conventional humidification
2

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Male and Female patients over the age of 18
  • Apnea Hypopnea Index (AHI) ≥15
  • Patients must have at least 5 hours sleep time on each titration night

You may not qualify if:

  • Receiving or requiring bi-level ventilation
  • Use of a full face interface or chin strap
  • Previous UPPP surgery or palatal reconstruction
  • Recent angina symptoms within 2 weeks of entry
  • CHF with EF \< 40%
  • Obesity Hypoventilation Syndrome
  • Cheyne Stokes respiration
  • \> 50% Central apneas recorded on diagnostic polysomnogram
  • Supplemental oxygen use
  • Use of narcotic pain medication
  • Hypoxemia as determined by room air pulse oxymetry of less than 89% on room air at rest awake
  • Inability to tolerate positive pressure therapy
  • Split Night Evaluations

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Sleep Center of Tulsa - Midtown

Tulsa, Oklahoma, 74135, United States

Location

Sleep Center of Tulsa - South

Tulsa, Oklahoma, 74137, United States

Location

Related Links

MeSH Terms

Conditions

Sleep Apnea, Obstructive

Interventions

Continuous Positive Airway Pressure

Condition Hierarchy (Ancestors)

Sleep Apnea SyndromesApneaRespiration DisordersRespiratory Tract DiseasesSleep Disorders, IntrinsicDyssomniasSleep Wake DisordersNervous System Diseases

Intervention Hierarchy (Ancestors)

Positive-Pressure RespirationRespiration, ArtificialAirway ManagementTherapeuticsRespiratory Therapy

Results Point of Contact

Title
Hansinie Laing
Organization
Fisher & Paykel Healthcare

Study Officials

  • Kevin L Lewis, M.D.

    Sleep Disorder Centers Institute for Clinical Research

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
OTHER
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
INVESTIGATOR
Purpose
TREATMENT
Intervention Model
CROSSOVER
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 19, 2008

First Posted

May 21, 2008

Study Start

April 1, 2008

Primary Completion

July 1, 2008

Study Completion

July 1, 2008

Last Updated

June 12, 2019

Results First Posted

June 12, 2019

Record last verified: 2019-05

Locations