Working… Menu

Sleep Apnea Treatment After Stroke (SATS)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00282815
Recruitment Status : Terminated (Poor recruitment. Funding expired.)
First Posted : January 27, 2006
Results First Posted : March 11, 2013
Last Update Posted : March 11, 2013
Information provided by (Responsible Party):
Devin Brown, University of Michigan

Brief Summary:
The purpose of this study is to determine if treating stroke patients who have obstructive sleep apnea with continuous positive airway pressure will improve symptoms caused by the stroke.

Condition or disease Intervention/treatment Phase
Obstructive Sleep Apnea Stroke Device: continuous positive airway pressure or CPAP Device: sham CPAP Phase 2

Detailed Description:

Stroke is the leading cause of adult disability in the United States, yet there are very few treatments that improve stroke outcome. Obstructive sleep apnea (OSA)--frequent upper airway blockage that occurs during sleep--is common after stroke, affecting more than half of stroke patients. The most common treatment for obstructive sleep apnea in the general population is nasal continuous positive airway pressure (CPAP) applied through a nasal mask during the hours of sleep. Positive air pressure holds the naso-oro-pharyngeal airway open during sleep.

The objective of this single-center, prospective, randomized study is to evaluate CPAP treatment in post-stroke patients. Participants will go through a medical interview, a brief neurological examination, and a sleep study to screen them for OSA. Those with OSA will be eligible for the second phase of the study during which participants will be randomly selected to receive either treatment with CPAP or with sham CPAP (placebo).

This project promises to establish feasibility, develop design and identify suitable outcome measures (e.g. hours of CPAP treatment per week, functional outcome, depression, fatigue, and impaired alertness) for a large-scale clinical trial of CPAP in stroke patients with OSA. If the larger trial shows benefits of CPAP, a new treatment for more than half of all stroke patients will become available.

Layout table for study information
Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 32 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double (Participant, Investigator)
Primary Purpose: Treatment
Official Title: Treatment of Obstructive Sleep Apnea After Stroke
Study Start Date : September 2004
Actual Primary Completion Date : May 2010
Actual Study Completion Date : May 2010

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Sleep Apnea

Arm Intervention/treatment
Active Comparator: 1
Device: continuous positive airway pressure or CPAP
RemStar Pro (Respironics, Inc.) The CPAP is applied through a nasal mask during the hours of sleep. Positive air pressure holds the naso-oro-pharyngeal airway open during sleep.

Sham Comparator: 2
sham CPAP (placebo)
Device: sham CPAP
sham CPAP

Primary Outcome Measures :
  1. Cumulative Continuous Positive Airway Pressure (CPAP)/Sham CPAP Usage Hours Over the 3 Month Period. [ Time Frame: 3 months ]
  2. Number of Subjects Who Withdraw From Study. [ Time Frame: 3 months ]
    Prespecified outcome.

Secondary Outcome Measures :
  1. Barthel Index [ Time Frame: 3 months ]
    Barthel Index score range: 0 (worst, fully dependent) - 100 (best, independent).

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

Layout table for eligibility information
Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Ischemic stroke within 7 days of planned polysomnography/sleep screening study
  • Modified Rankin Scale score >1
  • If of child-bearing potential, has a negative urine or serum pregnancy test

Exclusion Criteria:

  • Decompensated heart failure
  • Cardiac or respiratory arrest within the past 3 months
  • Myocardial infarction within the past 3 months
  • Severe pneumonia
  • Hypertension refractory to treatment
  • Any other unstable medical condition which is thought to interfere with participation
  • Known preexisting OSA already on CPAP or previously failed CPAP or used CPAP
  • Previous pneumothorax
  • Bullous emphysema
  • Chronic obstructive pulmonary disease (COPD), obesity-hypoventilation, or another condition warranting the use of nasal bilevel positive airway pressure instead of CPAP
  • Acute sinus or ear infection

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00282815

Layout table for location information
United States, Michigan
University of Michigan
Ann Arbor, Michigan, United States, 48109
Sponsors and Collaborators
University of Michigan
Layout table for investigator information
Principal Investigator: Devin Brown, MD, MS Associate Professor, Stroke Program, University of Michigan
Study Director: Lewis Morgenstern, MD Director, Stroke Program, University of Michigan
Study Director: Jack Kalbfleisch, PhD University of Michigan Dept of Biostatistics
Publications of Results:
Layout table for additonal information
Responsible Party: Devin Brown, Associate Professor, University of Michigan Identifier: NCT00282815    
Other Study ID Numbers: K23NS051202 ( U.S. NIH Grant/Contract )
First Posted: January 27, 2006    Key Record Dates
Results First Posted: March 11, 2013
Last Update Posted: March 11, 2013
Last Verified: December 2012
Keywords provided by Devin Brown, University of Michigan:
obstructive sleep apnea
continuous positive airway pressure
Additional relevant MeSH terms:
Layout table for MeSH terms
Sleep Apnea Syndromes
Sleep Apnea, Obstructive
Cerebrovascular Disorders
Brain Diseases
Central Nervous System Diseases
Nervous System Diseases
Vascular Diseases
Cardiovascular Diseases
Respiration Disorders
Respiratory Tract Diseases
Signs and Symptoms, Respiratory
Sleep Disorders, Intrinsic
Sleep Wake Disorders