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Overnight Effects of nCPAP with and without humidification on upper airway function.

Overnight Effects of nCPAP with and without humidification on: inspiratory temperature, humidity, mouth leak, saccharine transit time, nasal lavage and in vitro mucus properties in patients with obstructive sleep apnea.

Status
Not yet recruiting
Phases
Unknown
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12605000800628
Acronym
TS-LOREa
Enrollment
10
Registered
2005-12-21
Start date
2006-02-01
Completion date
Unknown
Last updated
2020-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

Participants will be randomised to 3 consecutive nights (Monday, Wednesday and Friday) of CPAP for one night CPAP + (conventional heated humidification) for one night CPAP + (optimal level of humidity) for one night Outcome measures:(all measured pre and post each overnight study) Saccharine transit time Mucus physical properties Cytology via lavage Inflammatory mediators Upper airways symptom score

Interventions

Participants will be randomised to 3 consecutive nights (Monday, Wednesday and Friday) of CPAP for one night CPAP + (conventional heated humidification) for one night CPAP + (optimal level of humidity) for one night Outcome measures:(all measured pre and post each overnight study) Saccharine transit time Mucus physical properties Cytology via lavage Inflammatory mediators Upper airways symptom score

Sponsors

Fisher and Paykel Healthcare
Lead SponsorCommercial sector/Industry

Study design

Allocation
Randomised controlled trial
Intervention model
Crossover
Primary purpose
Treatment
Masking
Blinded (masking used)

Eligibility

Sex/Gender
All
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Moderate to severe obstructive sleep panea > 15 AHI > 75% of events must be obstructiveExcessive daytime sleepiness (ESS > 10).

Exclusion criteria

Nasal CPAP intolerance determined in the PSG-CPAP titration studyacute upper airway diseasesmokerCOPDCongestive heart failure.

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026