Clinical Research Directory

Inclusion Criteria: * Age \>18 years * Diagnosis of severe uncontrolled asthma according to the criteria of the Spanish Asthma Management Guide (GEMA) or the Global Initiative for Asthma (GINA) and no hospitalizations the month prior to inclusion in the study. * Apnea hypopnea rate greater than or equal to 15/hour * Punctuation in the Epworth Sleepiness Scale ≤10 * Obtaining informed consent. Exclusion Criteria: * Previous treatment with CPAP * Patient with central sleep apnea or Cheyne-Stokes respiration * Other sleep disorders: narcolepsy, restless leg syndrome, chronic insomnia, * Resistant hypertension * Active Smoking * Unstable comorbidities or medications may interfere with asthma control * Pregnancy * Any process that reduces life expectancy to \<1 year, * Any medical or social factor that may limit CPAP compliance