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Update on Persistent Excessive Daytime Sleepiness in OSA.

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Obstructive Sleep Apnea (OSA) causes excessive daytime sleepiness (EDS). New medications like solriamfetol and pitolisant offer effective treatment options for persistent EDS in OSA patients unresponsive to standard therapies.

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Area of Science:

  • Sleep Medicine
  • Pharmacology

Background:

  • Obstructive Sleep Apnea (OSA) is common, with excessive daytime sleepiness (EDS) as a primary symptom.
  • Positive Airway Pressure (PAP) therapy is the standard treatment, but some patients experience persistent EDS.
  • Investigating underlying causes and exploring pharmacological options are crucial for managing residual EDS.

Purpose of the Study:

  • To review the causes of persistent EDS in OSA patients despite PAP therapy.
  • To discuss the role of pharmacological interventions for residual EDS in OSA.

Main Methods:

  • Review of medical literature on OSA, EDS, and treatment options.
  • Analysis of current pharmacological treatments for EDS, including modafinil, solriamfetol, and pitolisant.
  • Examination of clinical trial data for efficacy and safety of newer agents.

Main Results:

  • Persistent EDS in OSA can stem from various factors, including treatment adherence issues, comorbidities, or long-term OSA effects.
  • Solriamfetol, a dual dopamine-norepinephrine reuptake inhibitor, shows efficacy in treating EDS in OSA and narcolepsy.
  • Pitolisant, a histamine H3 receptor inverse agonist, improves EDS in narcolepsy and shows promise in OSA.

Conclusions:

  • For OSA patients with persistent EDS despite optimal PAP therapy, pharmacological treatments are valuable options.
  • Solriamfetol and pitolisant represent newer, effective therapeutic choices for managing residual EDS in OSA.
  • Further research may elucidate long-term effects and optimal use of these agents in OSA management.