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Study identifier: NCT06146101 Synced from ClinicalTrials.gov · August 07, 2026
● Study status: Completed

RePOSA-Revealing the Efficacy of IHL-42X Use in Patients With OSA

Condition: Obstructive Sleep Apnea  ·  Sponsor: Incannex Healthcare Ltd

PhasePhase 2/Phase 3
Planned participants121
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNo

About this study

The goal of this randomised, double-blind phase II/III clinical trial is to determine the safety and efficacy of IHL-42X in subjects with obstructive sleep apnoea who are intolerant, non-compliant, or naïve to positive airway pressure. Phase II study will be a 4-week dose-finding study comparing two dose strengths of IHL-42X to placebo. The optimal dose strength will be selected based on comparing the safety and efficacy of the two IHL-42X dose strengths to placebo over a 4-week treatment period. The three treatment groups are; IHL-42X Low dose (2.5mg dronabinol, 125mg acetazolamide), IHL-42X High dose (5mg dronabinol, 250mg acetazolamide) and Placebo. Each treatment group will enrol approximately 40 patients per treatment arm, for a total of approximately 120 patients. The safety and efficacy results of the Phase II study will be used to select the dose strength of IHL-42X and corresponding doses of dronabinol and acetazolamide in Phase III. Phase III study will use the optimal dose strength of IHL-42X identified in Phase II and will be compared to the component active pharmaceutical ingredients at equivalent dose strengths to those found in the IHL-42X optimal dose strength and placebo over 52 weeks. The four treatment groups are; IHL-42X (optimal dose from Phase II), Acetazolamide (equivalent dose strength to that in the IHL-42X optimal dose strength), Dronabinol (equivalent dose strength to that in the IHL-42X optimal dose strength) and placebo. The treatment groups wi…

This description comes directly from the study's public registry record.

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Locations (20)

Exalt Clinical ResearchChula Vista, California, United States
CenExel CNS- Los AlamitosLong Beach, California, United States
Pacific Clinical Research Medical GroupUpland, California, United States
Clinical Neuroscience Solutions, Inc. (CNS Healthcare of Jacksonville)Jacksonville, Florida, United States
Clinical Neuroscience Solutions, Inc. (CNS Healthcare of Orlando)Orlando, Florida, United States
Teradan Clinical TrialsValrico, Florida, United States
Palm Beach Research CenterWest Palm Beach, Florida, United States
NeuroTrials Research, Inc.Atlanta, Georgia, United States
Tandem Clinical Research, LLCMarrero, Louisiana, United States
Centennial Medical GroupElkridge, Maryland, United States
Meridian Clinical Research, LLCRockville, Maryland, United States
Henderson Clinical Trials,LLCHenderson, Nevada, United States

+ 8 more locations — full list on the registry record.

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