Spanish Registry of Patients With Sleep Apnea and Daytime Sleepiness

Multicenter, observational and prospective study, in which patients referred to the sleep unit with suspected apnea will be recruited obstructive sleep. 1000 patients referred to the sleep unit will be recruited with suspected obstructive sleep apnea. The recruited patients will undergo a sleep study for the diagnosis of OSA, ambulatory monitoring of blood pressure (ABP) of 24 hours, clinical variables will be obtained, questionnaires of quality of life, Epworth test for the evaluation of daytime sleepiness, variables biochemistry and obtaining biological samples. OSA patients will be managed following the usual practice. In those patients for whom the treatment with CPAP an evaluation of adherence to treatment will be carried out. OSA patients will be evaluated at baseline, 6, 12, and 24 months.

NCT Number	NCT06514482
Lead Sponsor	Hospital San Pedro de Logroño
Conditions	Sleep Apnea
Enrollment	1,000 participants
Start Date	2022-10-28
Primary Completion	2025-05-30 (estimated)
Study Completion	2028-12-31 (estimated)
Updated on ClinicalTrials.gov	2026-02-17