Intervention: Dronabinol
Trial phase: Phase 2
ATC code: A04AD10
SMILES: [H][C@@]12C=C(C)CC[C@@]1([H])C(C)(C)Oc1cc(CCCCC)cc(O)c12
Sex: All
Age groups: Adult
Healthy volunteers: No
Participants at risk: 27
Group description: Dronabinol, 10 mg QD by mouth, 60 minutes before bedtime for 4 weeks after 1-week placebo run-in and 2-week dose escalation

Dronabinol
Eligibility criteria:
Inclusion Criteria:

Adult 21 to 64 years of age;
15≤AHI ≤ 50 on screening polysomnogram (PSG)
ESS score ≥ 7
Able to understand and complete informed consent and all study assessments and forms, presented in an English-speaking format;
Women of child-bearing potential (WCBP) must have a negative urine pregnancy test. In addition sexually active WCBP must agree to use adequate contraceptive methods (oral, injectable or implantable hormonal contraceptive; tubal ligation; intra-uterine devices; barrier contraceptive with spermicide; or vasectomized partner).

Exclusion Criteria:

Arterial oxygen saturation < 75% for > 5% of sleep period time on screening PSG;
Occupation or life situation that may impart risk by study participation (e.g. commercial driver, pilot, police officer, fireman);
Motor vehicle accident or "near-miss" related to sleepiness (self-report) within 2 years of the first dose of study drug (Day 8);
Body mass index > 45 kg/m2
Severe obstructive sleep apnea syndrome (OSAS) that, based on the clinical judgment of the Investigator, precludes delaying positive airway pressure treatment;
History of shift work or rotating shifts within the month prior to the first dose of study drug (Day 8);
Prior upper airway surgery for snoring or OSAS as an adult (≥ 18 years of age);
Prior non-invasive treatment for OSAS within 6 months prior to the first dose of study drug (Day 8);
Major surgery within 6 months prior to the first dose of study drug (Day 8);
Bariatric surgery within 2 years prior to the first dose of study drug (Day 8). If post-bariatric surgery, weight must be stable ±5% (self-report) for at least 6 months prior to first dose of study drug (Day 8).
Any form of medically managed weight loss program within 6 months prior to the first dose of study drug (Day 8);
Significant defect in nasal patency due to anatomical abnormalities or uncontrolled or recurrent episodes of rhinitis;
Any clinically significant unstable or progressive medical condition;
Any primary sleep disorder other than OSAS as determined by history, physical examination, or Visit 2 PSG (after 7-day screening run-in period);
Clinically significant or uncontrolled: chronic obstructive pulmonary disease (COPD), cardiovascular disease, gastrointestinal, respiratory, pancreatic, hepatic, renal, hematologic, endocrine [including insulin-dependent diabetes mellitus (IDDM)], neurological, urogenital, connective tissue, dermatological, thyroid, or other medical disorder;
Any clinically significant psychiatric disorder;
History of seizure disorder;
Treatment with any prescription antidepressant medication within 1 month prior to the first dose of study drug (Day 8);
Treatment with sedatives, hypnotics or other psychoactive drugs within 30 days prior to the first dose of study drug (Day 8);
Any complete blood count (CBC) or liver function test (LFT) laboratory value outside the normal range which, in the clinical judgment of the Investigator renders a subject inappropriate for randomization to treatment;
Pregnancy [as demonstrated by positive urine human chorionic gonadotropin (hCG) test] or lactation;
Allergic to cannabinoids or sesame oil;
History of substance abuse (including alcohol abuse or dependence) or laboratory evidence of drug abuse on the Visit 1 drug-screening panel;
Use of dietary supplements which in the judgment of the Investigator may impact sleep or breathing behaviors;
Average daily caffeine consumption > 500 mg/day (~5 cups of coffee);
Average weekly alcohol consumption > 10 units;
Unwillingness to abstain from caffeine and alcohol on all days when overnight or daytime testing will be performed;
Participation in any other investigational protocol within the 30 days prior to the first dose of study drug (Day 8);
Any condition which, in the opinion of the Investigator, places the patient at unacceptable risk if he or she were to participate in the study.