Randomized Controlled Trial for Assessment of a Novel Non-Pharmacologic Intervention for Decrease in Altitude Illness

The study is examining if an over-the-counter device (Theravent) worn while sleeping can reduce acute mountain sickness upon awakening in a high altitude trekking population.

Stanford is not currently accepting new patients for this trial. You may want to check clinicaltrials.gov to see if other locations are recruiting.



  • device : Control
  • device : Theravent

Phase: N/A


Ages Eligible For Study:

18 Years - 65 Years

Inclusion Criteria

- ages 18-65 - Lake Louise Score (LLS) of < 3 - Have not taken NSAIDs, acetazolamide, or corticosteroids in the prior week - Have not traveled above 4200 m in the prior week. - First night in Pheriche or Dingboche

External Links

Contact information

Primary Contact:

Grant S Lipman, MD 415-290-9286

Stanford University School of Medicine 300 Pasteur Drive Stanford, CA 94305

Stanford Medicine Resources:

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