NCT03212209

Brief Summary

This is a crossover study comparing the effect of CPAP Fixed Pressure, CPAP FLEX -PLUS and Sensawake on sleep quality, adherence to treatments, and PSG parameters in patients with moderate to severe OSA.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
50

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Apr 2017

Geographic Reach
1 country

1 active site

Status
unknown

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

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

April 28, 2017

Completed
7 days until next milestone

First Submitted

Initial submission to the registry

May 5, 2017

Completed
2 months until next milestone

First Posted

Study publicly available on registry

July 11, 2017

Completed
7 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 14, 2018

Completed
5 months until next milestone

Study Completion

Last participant's last visit for all outcomes

July 16, 2018

Completed
Last Updated

December 19, 2017

Status Verified

July 1, 2017

Enrollment Period

10 months

First QC Date

May 5, 2017

Last Update Submit

December 16, 2017

Conditions

Keywords

Sleep ApneaCPAP

Outcome Measures

Primary Outcomes (1)

  • Flow limitation

    Flow limitation in percentage of total sleep time. The flow limitation will be assessed by the flow curve obtained in the polysomnographic recording.

    4 weeks after each CPAP modality completion

Secondary Outcomes (3)

  • Adherence to CPAP treatment

    4 weeks after each CPAP modality completion

  • Arousal index

    4 weeks after each CPAP modality completion

  • Wake time after sleep onset

    4 weeks after each CPAP modality completion

Study Arms (3)

CPAP C- Flex-Plus by Philips Respironics

EXPERIMENTAL

Four consecutive weeks with CPAP C- FLEX PLUS treatment. After these 4 weeks, patients will undergo full PSG with CPAP FLEX- PLUS. Patients will also fill out Epworth Sleepiness Scale, Pittsburgh Sleep Quality Index, Functional Outcome Sleep Questionnaire, and visual analogue scale assessing CPAP side effects and patient´s comfort. Adherence to 4-week treatment will be checked. Treatment is followed by 7-day washout period.

Device: CPAP Fixed Pressure

CPAP with Sensawake by Fisher and Paykel

EXPERIMENTAL

Four consecutive weeks with CPAP Sensawake treatment. After these 4 weeks, patients will undergo full PSG with the same CPAP modality. Patients will also fill out Epworth Sleepiness Scale, Pittsburgh Sleep Quality Index, Functional Outcome Sleep Questionnaire, and visual analogue scale assessing CPAP side effects and patient´s comfort. Adherence to 4-week treatment will be checked. Treatment is followed by 7-day washout period.

Device: CPAP Fixed Pressure

CPAP fixed pressure

ACTIVE COMPARATOR

Four consecutive weeks with CPAP fixed pressure treatment. After these 4 weeks, patients will undergo full PSG with the same CPAP modality. Patients will also fill out Epworth Sleepiness Scale, Pittsburgh Sleep Quality Index, Functional Outcome Sleep Questionnaire, and visual analogue scale assessing CPAP side effects and patient´s comfort. Adherence to 4-week treatment will be checked. Treatment is followed by 7-day washout period.

Device: CPAP Fixed Pressure

Interventions

Continuous positive airway pressure (CPAP) is the gold standard treatment for moderate and severe OSA, and it has been known to apply positive pressure in the upper airways, acting as a pneumatic splint preventing the upper airway collapse during sleep. CPAP C- Flex Plus by Philips - Respironics works just as CPAP Fixed Pressure, but increases the pressure delivered in the begining of inhalation to softens the breathing rhythm of the CPAP user. CPAP with SensAwake by Fisher and Paykel works just as CPAP fixed pressure but when the breathing pattern suggests that patient is awake, a prompt relief in pressure to the lowest most comfortable level is activated, like ramp feature.

Also known as: CPAP C- Flex Plus by Philips Respironics, CPAP with SensAwake by Fisher and Paykel
CPAP C- Flex-Plus by Philips RespironicsCPAP fixed pressureCPAP with Sensawake by Fisher and Paykel

Eligibility Criteria

Age30 Years - 65 Years
Sexmale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • male gender
  • apnea-hypopnea index (AHI) score of ≥20 events/hour of sleep
  • years-old
  • body mass index (BMI) ≤40 Kg/m²

You may not qualify if:

  • major neurological, psychiatric, cardiac or respiratory disease
  • use of psychoactive medication
  • other sleep disorders
  • patients referred to PSG for Bilevel, considered the need for PAP ≥ 18 cm H2O
  • Previous contact with any OSA treatment.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Evelyn Brasil

São Paulo, 04024-002, Brazil

RECRUITING

MeSH Terms

Conditions

Sleep Apnea, ObstructiveSleep Apnea Syndromes

Interventions

Continuous Positive Airway Pressure

Condition Hierarchy (Ancestors)

ApneaRespiration DisordersRespiratory Tract DiseasesSleep Disorders, IntrinsicDyssomniasSleep Wake DisordersNervous System Diseases

Intervention Hierarchy (Ancestors)

Positive-Pressure RespirationRespiration, ArtificialAirway ManagementTherapeuticsRespiratory Therapy

Study Officials

  • Dalva Poyares, MD, PhD

    AFIP - Associação de fundo e incentivo a pesquisa

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Masking Details
Participants have never had contact with CPAP, therefore were not aware of PAP modality prescribed. Investigator were also naive, as well as sleep specialist responsible for Polysomnography reports. Only respiratory therapist who was assigned to CPAP clinic was aware of patient´s treatment condition.
Purpose
TREATMENT
Intervention Model
CROSSOVER
Model Details: This is a crossover study comparing different CPAP modalities in a group of patients with moderate to severe OSA.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

May 5, 2017

First Posted

July 11, 2017

Study Start

April 28, 2017

Primary Completion

February 14, 2018

Study Completion

July 16, 2018

Last Updated

December 19, 2017

Record last verified: 2017-07

Locations