Evaluation of New Diagnostic and Treatment Algorithm for Obstructive Sleep Apnea

July 9, 2009 updated by: Chinese University of Hong Kong

Evaluation of New Diagnostic and Treatment Algorithm for Obstructive Sleep Apnea in High Risk Population in Hong Kong

Newer home sleep study device and algorithm provides an alternative for inpatient sleep study and improve the service provides to patients

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Purpose: Assess different potential algorithms to improve the service and cost utility for diagnosis and treatment of obstructive sleep apnea syndrome (OSAS) in patients with high pretest probability in Hong Kong.

Hypothesis: Newer home sleep study device and algorithm provides an alternative for inpatient sleep study Design: Prospective randomized study Subject: High pretest probability of OSAS patients referred to a tertiary centre.

Study instruments: a portable sleep study device, AutoCPAP and inpatient sleep monitoring system.

Interventions: comparison between 3 different algorithms of health service for OSA patients would be made: conventional in-patient sleep study, empirical treatment and home sleep study.

Main outcome measures: The primary outcome is the validity of the home sleep study device compare to inpatient sleep study. The secondary outcomes are the relative efficacy of different algorithms and the numbers of failed procedures in each algorithm.

Study Type

Interventional

Enrollment (Anticipated)

150

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • China
      • Hong Kong, China
        • The Chinese University of Hong Kong

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Adult patients with high pretest probability of OSAS, i.e. ESS > 10 or symptomatic patients, with BMI > 23 and/or cranial facial features associated with OSA, as assessed by the attending respiratory physician in the respiratory clinic.
  • Patients aged between 18-65 years who agree to participate in the study.

Exclusion Criteria:

  • Pregnant women
  • Patients who refuse signing consent of the study
  • Do not have high pretest probability of OSAS
  • Refuse to have home sleep study
  • Refuse any treatment offered; or
  • Could not comply with the set up of home study.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Health Services Research
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: 1
Device: home sleep study
different in algorithm arrangement for diagnosing sleep apnea
Other Names:
  • different algorithm arrangement
Active Comparator: 3
Device: home CPAP titration (Autoset)
continuous positive airway pressure device for treatment of sleep apnea
Other Names:
  • Autoset
Other: 2
usual practice
Device: CPAP
usual practice

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Validity of the new home sleep study device compare with conventional inpatient sleep study
Time Frame: 1 year
1 year

Secondary Outcome Measures

Outcome Measure
Time Frame
The relative efficacy between different algorithm
Time Frame: 1 year
1 year
Failure rates in different algorithms which need to switch to the conventional algorithm
Time Frame: 1 year
1 year

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Chinese University of Hong Kong

Investigators

  • Principal Investigator: Kin W To, MBChB, Chinese University of Hong Kong

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

January 1, 2007

Primary Completion (Actual)

March 1, 2009

Study Completion (Actual)

June 1, 2009

Study Registration Dates

First Submitted

January 22, 2007

First Submitted That Met QC Criteria

January 22, 2007

First Posted (Estimate)

January 23, 2007

Study Record Updates

Last Update Posted (Estimate)

July 10, 2009

Last Update Submitted That Met QC Criteria

July 9, 2009

Last Verified

July 1, 2009

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • CRE-2006.404-T

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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