for people ages 18 years and up (full criteria)
at UC Davis UC Irvine UCLA UCSD UCSF
study started
completion around
Principal Investigator
by Dawn Meyer, PhD (ucsd)Alon Avidan, MD (ucla)Conrad Liang, MD (ucla)Masaki Nagamine, MD (uci)Kwan Ng, MD (ucdavis)Wade Smith, MD, PhD (ucsf)Neal Rao, MD (ucla)
Headshot of Alon Avidan
Alon Avidan
Headshot of Wade Smith
Wade Smith



The purpose of this study is to determine whether treatment of obstructive sleep apnea (OSA) with positive airway pressure starting shortly after acute ischemic stroke or high risk TIA (1) reduces recurrent stroke, acute coronary syndrome, and all-cause mortality 6 months after the event, and (2) improves stroke outcomes at 3 months in patients who experienced an ischemic stroke.


Sleep SMART has a prospective, randomized, open-label, blinded-endpoint (PROBE) design. It is a multi-site, parallel-group superiority trial that compares 6 months of OSA treatment to usual care. The study includes two trials: a prevention study with an embedded recovery trial. 3062 subjects will be randomized over 5 years at 110 sites within the NINDS-funded StrokeNet clinical trials network.


Ischemic Stroke, Sleep Apnea, Sleep Apnea, Obstructive, TIA, Stroke, CPAP, Telemedicine, Home Sleep Apnea Test, Randomized Clinical Trial, Multicenter Trial, Apnea, Sleep Apnea Syndromes, Obstructive Sleep Apnea


You can join if…

Open to people ages 18 years and up

  1. TIA with ABCD2 ≥4 or ischemic stroke, within the prior 14 days.

You CAN'T join if...

  1. pre-event inability to perform all of own basic ADLs
  2. unable to obtain informed consent from subject or legally authorized representative
  3. incarcerated
  4. known pregnancy
  5. current mechanical ventilation (can enroll later if this resolves) or tracheostomy
  6. current use of positive airway pressure, or use within one month prior to stroke
  7. anatomical or dermatologic anomaly that makes use of CPAP interface unfeasible
  8. severe bullous lung disease
  9. history of prior spontaneous pneumothorax or current pneumothorax

    10. hypotension requiring current treatment with pressors (can enroll later if this


    11. other specific medical circumstances that conceivably, in the opinion of the site PI,

    could render the patient at risk of harm from use of CPAP

    12. massive epistaxis or previous history of massive epistaxis 13. cranial surgery or head trauma within the past 6 months, with known or possible CSF

    leak or pneumocephalus

    14. recent hemicraniectomy or suboccipital craniectomy (i.e. those whose bone has not yet

    been replaced), or any other recent bone removal procedure for relief of intracranial pressure

    15. current receipt of oxygen supplementation >4 liters per minute 16. current contact, droplet, respiratory/airborne precautions


  • UCSD Health La Jolla accepting new patients
    La Jolla California 92103 United States
  • Ronald Reagan UCLA Medical Center accepting new patients
    Los Angeles California 90095 United States
  • UCLA Kaiser Fontana accepting new patients
    Ontario California 91761 United States
  • UC Irvine accepting new patients
    Orange California 92868 United States
  • UC Davis Medical Center accepting new patients
    Sacramento California 95817 United States
  • UCSD Medical Center - Hillcrest Hospital accepting new patients
    San Diego California 92103 United States
  • UCSF Helen Diller Medical Center at Parnassus Heights accepting new patients
    San Francisco California 94143 United States
  • Olive View- UCLA Medical Center not yet accepting patients
    Sylmar California 91342 United States
  • Scripps Memorial accepting new patients
    La Jolla California 92037 United States
  • Cedars-Sinai Medical Center accepting new patients
    Los Angeles California 90048 United States

Lead Scientists at University of California Health

  • Dawn Meyer, PhD (ucsd)
    Clinical Professor, Neurosciences, Vc-health Sciences-schools. Authored (or co-authored) 26 research publications
  • Alon Avidan, MD (ucla)
    Alon. Y. Avidan, MD, MPH, FAAN, FAASM Dr. Avidan is a Professor of Neurology at UCLA where he serves as Director of the UCLA Sleep Disorders Center. He completed his Neurology Residency at the Georgetown University Medical Center, and Fellowship in Sleep Medicine at the Cleveland Clinic.
  • Conrad Liang, MD (ucla)
  • Masaki Nagamine, MD (uci)
    Assistant Health Sciences Professor, Neurology, School of Medicine. Authored (or co-authored) 6 research publications
  • Kwan Ng, MD (ucdavis)
    Associate Professor, Neurology, School of Medicine. Authored (or co-authored) 26 research publications
  • Wade Smith, MD, PhD (ucsf)
    Dr. Smith is a neurologist with training in Neurocritical Care and Vascular Neurology. He cares for patients with acute stroke and subarachnoid hemorrhage among all neurovascular conditions. His research interests are in developing methods to rapidly triage stroke patients to appropriate immediate care using biometrics, endovascular stroke therapy and cerebral concussion.
  • Neal Rao, MD (ucla)
    HS Associate Clinical Professor, Neurology, Medicine. Authored (or co-authored) 26 research publications


accepting new patients
Start Date
Completion Date
University of Michigan
Study Type
Expecting 3062 study participants
Last Updated