AIM: In the phase 3 SURMOUNT-OSA trials, tirzepatide treatment significantly reduced the apnea-hypopnea index (AHI) among people with moderate-to-severe obstructive sleep apnea (OSA) and obesity. We evaluated effects of tirzepatide treatment on sleep disturbance, sleep-related impairment, functioning, health-related quality of life (HRQoL), and OSA symptoms in SURMOUNT-OSA participants.
METHODS: SURMOUNT-OSA consisted of two randomized, placebo-controlled trials of tirzepatide (10 mg or 15 mg) or placebo for 52 weeks in participants with moderate-to-severe OSA and obesity. For participants using PAP (Study 2), PAP was withdrawn prior to assessments of polysomnography and patient-reported outcome measures (PROMs). Prespecified PROM endpoints were from baseline to Week 52. Changes in sleep-related impairment, sleep disturbance, excessive daytime sleepiness, functioning, and HRQoL were assessed using analysis of covariance. Categorical shifts in OSA symptom severity were described.
RESULTS: At Week 52, compared with placebo, tirzepatide-treated participants reported significantly improved Patient-Reported Outcomes Measurement Information System (PROMIS) Short-Form Sleep-related Impairment 8a scores, PROMIS Short-Form v1.0 Sleep Disturbance 8b scores, Functional Outcomes of Sleep Questionnaire Activity-Level scores, EQ-5D-5L scores, and most domains of the Short-Form 36 Health Survey, Version 2. Tirzepatide treatment was also associated with greater improvements in Patient Global Impression of Status and Patient Global Impression of Change symptom scales compared with placebo. Additionally, Study 1 participants reported significant changes in Epworth Sleepiness Scale scores.
CONCLUSION: Results indicate that in addition to objective outcomes of improved AHI, hypoxic burden associated with OSA, and cardiovascular risk factors, people with OSA reported benefits in symptoms, functioning, and HRQoL following tirzepatide treatment.
GOV NUMBER: NCT05412004.
