Long Term Prognosis of Taiwanese Patients With OSA

Status Recruiting

Clinical Trial Summary

The purpose of this study is to explore long-term prognosis and to identify the predictors in Taiwanese OSA patients. Validation of the prediction model derived from NHIRD with the database of National Taiwan University Hospital (NTUH) sleep center is planed to determine the effects of different treatments on long-term prognosis.

Clinical Trial Description

Obstructive sleep apnea (OSA) is a common disorder characterized by intermittent hypoxia and sleep fragmentation. OSA is associated with cardiovascular morbidity and mortality, metabolic dysregulation, and neurocognitive dysfunction, which may bring worse prognosis. Continuous positive airway pressure (CPAP) is the standard treatment of OSA while the oral appliance and surgery are the alternative treatments. The differences of craniofacial features among races contributed to the race-specific presentations of OSA. Up to date, only limited studies investigated the long-term prognosis of OSA and most of them recruited Caucasians and African Americans. Moreover, most studies didn't address the impact of treatment other than CPAP on the long-term prognosis. .

National Health Insurance Research Database (NHIRD) in Taiwan enrolled 99% of whole Taiwan's population and has longer period of 10 years for follow-up, which is suitable for investigation of long-term prognosis and predictors in OSA. However, due to limited parameters for diagnosis and treatment, the results could be biased in such secondary database research. Center of Sleep Disorder in National Taiwan University Hospital (NTUH) established from 2006 has 2,600 sleep studies annually. Therefore, database and cohort from sleep center could offer the validations of the prognosis and predictors determined from NHIRD. In addition, the impact of all three treatment modalities, namely CPAP, oral appliance, and surgery, on long-term prognosis could be studied in the prospective way.

Therefore, in this project, we aimed to achieve three goals (1) To explore long-term prognosis and identify the predictors in Taiwanese OSA patients with NHIRD, where the prediction mode of prognosis was established (2). To validate the prediction model derived from NHIRD with the database of NTUH sleep center (3) To determine the effects of different treatments on long-term prognosis with prospective following NTUH sleep center cohort. ;

Study Design

Observational Model: Cohort, Time Perspective: Retrospective

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT02090023
Study type	Observational
Source	National Taiwan University Hospital
Contact	Ming-Tzer Lin, M.D.
Phone	+886-981-134-799
Email	lightpool2010@gmail.com
Status	Recruiting
Phase	N/A
Start date	January 2014
Completion date	December 2017

View Details

See also
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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.