What this phase means
Phase 2: researchers already know a roughly safe dose (from phase 1). This stage asks whether the treatment actually helps the condition, and watches side effects more closely.
Phase labels are FDA/ICH categories applied to the registry Phase field. They are not a finding that this study succeeded.
What the registry says happens
If you join, the listed intervention(s) are IHL-42X: 2.5 mg dronabinol + 125 mg acetazolamide, IHL-42X: 5 mg dronabinol + 125 mg acetazolamide, or IHL-42X: 7.5 mg dronabinol + 125 mg acetazolamide. The registry lists allocation as randomized. The goal of this randomly assigned, neither you nor the study doctors know who gets the real treatment, multi-dose crossover clinical trial is to determine the safety and how well it works of IHL-42X in subjects with obstructive sleep apnea.
They plan to enroll about 120 people at 13 sites. Taking part typically means taking a study drug (or dummy pill) plus check-ins.
Official title (unrewritten)
Phase II, Randomized, Double-Blind, Multidose Crossover Clinical Trial to Determine the Safety and Efficacy of IHL-42X in Subjects With Obstructive Sleep Apnea
Interventions: IHL-42X: 2.5 mg dronabinol + 125 mg acetazolamide, IHL-42X: 5 mg dronabinol + 125 mg acetazolamide, IHL-42X: 7.5 mg dronabinol + 125 mg acetazolamide, IHL-42X: 2.5 mg dronabinol + 250 mg acetazolamide, IHL-42X: 5 mg dronabinol + 250 mg acetazolamide, IHL-42X: 7.5 mg dronabinol + 250 mg acetazolamide, IHL-42X: 2.5 mg dronabinol + 375 mg acetazolamide, IHL-42X: 5 mg dronabinol + 375 mg acetazolamide, IHL-42X: 7.5 mg dronabinol + 375 mg acetazolamide, Placebo: Negative control
Primary outcome (registry wording): Change in AHI4 at the end of each treatment period compared to baseline