Participants underwent initial pre-screening to determine potential study eligibility. Participants selected for further screening had either a previous history of OSA of a severity consistent with enrollment criteria or were at high risk (e.g. as assessed by STOP-Bang Questionnaire score). Only participants who met all non polysomnography (PSG) enrollment criteria at Visit 1 were eligible for a screening PSG.
This is a randomized, 3-period, placebo-controlled, crossover, phase 2 clinical study to examine the efficacy and safety of 2 doses of AD109 vs placebo in patients with mild obstructive sleep apnea.