The Endothelium Dysfunction in Patients of Obstructive Sleep Apnea Syndrome
1 other identifier
interventional
46
1 country
1
Brief Summary
study Hypothesis: We hypothesize that CPAP could effectively improve the endothelial dysfunction by anti-inflammatory effect in patients of OSA,and compare to the effect of statin.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_4
Started May 2010
Typical duration for phase_4
1 active site
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
May 1, 2010
CompletedFirst Submitted
Initial submission to the registry
August 30, 2012
CompletedFirst Posted
Study publicly available on registry
October 3, 2012
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 1, 2013
CompletedStudy Completion
Last participant's last visit for all outcomes
August 1, 2013
CompletedFebruary 1, 2018
January 1, 2018
2.8 years
August 30, 2012
January 30, 2018
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Flow-Mediated dilatation test(FMD)
FMD is the most sensitive physical marker of endothelial function, we measure the FMD changes after treatment
6 months
Secondary Outcomes (1)
Blood pressure
6 months
Other Outcomes (2)
Hs-CRP
6 months
Inflammatory markers
6 months
Study Arms (4)
CPAP, Hypertension
EXPERIMENTALevaluate the effect on FMD, blood pressure and inflammation after CPAP on OSA
CPAP and statin, Hypertension
ACTIVE COMPARATORevaluate the effect on FMD, blood pressure and inflammation after CPAP plus statin on OSA patients
OSA, statin, Hypertension
ACTIVE COMPARATORevaluate the effect on FMD, blood pressure and inflammation after statin treatment on OSA
Placebo
NO INTERVENTIONWe will also measure the FMD, blood pressure and inflammation on patients with only life style modification as in all other patients
Interventions
Continuous Positive Airway Pressure is the routine treatment of OSA, patients will be randomly assigned into CPAP treatment group
Statin is an lipid lowering medication with anti-inflammatory effect.
Eligibility Criteria
You may qualify if:
- \- 1.OSA with AHI\>30 2.Male patients with hypertension 3.LDL over 130 mg/dL without any lipid-lowering drug therapy in recent 6 months 4.Signed inform consent and cooperative
You may not qualify if:
- \- 1.Non-cooperative 2.Can't sign inform consent. 3.Had proven major cardiovascular complication such as AMI, CVA. 4.Major chronic disorders and inflammatory disorders: such as DM, ESRD, COPD or rheumatoid arthritis. 5.Under anti-inflammatory medication: such as aspirin, NSAID, steroids, theophylline etc. 6.Acute of chronic infection 1 weeks between blood drawing period will be discarded 7.Study medication will be discontinued among subjects who develop myopathy (CK ≥10 times ULN and muscle aches or weakness) or a persistent elevation in ALT (≥3 times ULN on 2 consecutive tests).
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Chang Gang Memorial Hospital
Taoyuan District, 333, Taiwan
Related Publications (11)
Luthje L, Andreas S. Obstructive sleep apnea and coronary artery disease. Sleep Med Rev. 2008 Feb;12(1):19-31. doi: 10.1016/j.smrv.2007.08.002. Epub 2007 Nov 1.
PMID: 17936040RESULTBradley TD, Floras JS. Obstructive sleep apnoea and its cardiovascular consequences. Lancet. 2009 Jan 3;373(9657):82-93. doi: 10.1016/S0140-6736(08)61622-0. Epub 2008 Dec 26.
PMID: 19101028RESULTAtkeson A, Yeh SY, Malhotra A, Jelic S. Endothelial function in obstructive sleep apnea. Prog Cardiovasc Dis. 2009 Mar-Apr;51(5):351-62. doi: 10.1016/j.pcad.2008.08.002.
PMID: 19249441RESULTJelic S, Padeletti M, Kawut SM, Higgins C, Canfield SM, Onat D, Colombo PC, Basner RC, Factor P, LeJemtel TH. Inflammation, oxidative stress, and repair capacity of the vascular endothelium in obstructive sleep apnea. Circulation. 2008 Apr 29;117(17):2270-8. doi: 10.1161/CIRCULATIONAHA.107.741512. Epub 2008 Apr 14.
PMID: 18413499RESULTGozal D, Kheirandish-Gozal L. Cardiovascular morbidity in obstructive sleep apnea: oxidative stress, inflammation, and much more. Am J Respir Crit Care Med. 2008 Feb 15;177(4):369-75. doi: 10.1164/rccm.200608-1190PP. Epub 2007 Nov 1.
PMID: 17975198RESULTGilmartin GS, Tamisier R, Curley M, Weiss JW. Ventilatory, hemodynamic, sympathetic nervous system, and vascular reactivity changes after recurrent nocturnal sustained hypoxia in humans. Am J Physiol Heart Circ Physiol. 2008 Aug;295(2):H778-85. doi: 10.1152/ajpheart.00653.2007. Epub 2008 Jun 6.
PMID: 18539753RESULTIturriaga R, Rey S, Del Rio R. Cardiovascular and ventilatory acclimatization induced by chronic intermittent hypoxia: a role for the carotid body in the pathophysiology of sleep apnea. Biol Res. 2005;38(4):335-40. doi: 10.4067/s0716-97602005000400004.
PMID: 16579514RESULTWilliams B. The year in hypertension. J Am Coll Cardiol. 2008 May 6;51(18):1803-17. doi: 10.1016/j.jacc.2008.03.010. No abstract available.
PMID: 18452788RESULTCampos-Rodriguez F. Screening for sleep apnea in patients with resistant hypertension. Am J Hypertens. 2008 Jul;21(7):728. doi: 10.1038/ajh.2008.193. No abstract available.
PMID: 18584016RESULTHaentjens P, Van Meerhaeghe A, Moscariello A, De Weerdt S, Poppe K, Dupont A, Velkeniers B. The impact of continuous positive airway pressure on blood pressure in patients with obstructive sleep apnea syndrome: evidence from a meta-analysis of placebo-controlled randomized trials. Arch Intern Med. 2007 Apr 23;167(8):757-64. doi: 10.1001/archinte.167.8.757.
PMID: 17452537RESULTPhillips CL, Yee B, Yang Q, Villaneuva AT, Hedner J, Berend N, Grunstein R. Effects of continuous positive airway pressure treatment and withdrawal in patients with obstructive sleep apnea on arterial stiffness and central BP. Chest. 2008 Jul;134(1):94-100. doi: 10.1378/chest.07-3121. Epub 2008 Mar 17.
PMID: 18347202RESULT
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
WAN-CHING Ho, M.D.
Taiwan Society of Cardiology
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
August 30, 2012
First Posted
October 3, 2012
Study Start
May 1, 2010
Primary Completion
February 1, 2013
Study Completion
August 1, 2013
Last Updated
February 1, 2018
Record last verified: 2018-01