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DRonabinol Treatment of OSA

Targeted Treatment of Obstructive Sleep Apnea With Dronabinol: Proof of Concept and Phase II Clinical Trial

Status
Recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06477952
Acronym
DROSA
Enrollment
120
Registered
2024-06-27
Start date
2025-08-25
Completion date
2026-12-31
Last updated
2026-08-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Obstructive Sleep Apnea

Keywords

OSA, sleep apnea, pharmacological treatment, Drug treatment

Brief summary

This is an open-label trial that tests the effectiveness of Dronabinol in treating obstructive sleep apnea (OSA). All participants will take oral Dronabinol for two weeks. Sleep studies will be conducted before and after treatment to measure OSA severity.

Detailed description

Obstructive sleep apnea (OSA), is a serious respiratory disorder that involves repetitive cessation of breathing during sleep. It is estimated that 15-20 million people in the United States suffer from OSAS, which has been linked to increased risk for hypertension, heart failure, depression, and diabetes. The current standard of care for OSA, positive airway pressure (PAP), involves a mechanical device with low patient tolerance and adherence. Upper airway surgical approaches are also an option but are invasive and often unsuccessful. Effective drug treatments for OSA remain to be identified. This study will enroll up to 120 Veterans so that 45 Veterans may complete the two-week open-label Dronabinol treatment trials. The results of the study will be used to develop a prediction model for OSA severity reduction after 2-week Dronabinol treatment vs. pretreatment AHI. Participants clinical (age, sex, body mass index, comorbidity) and pretreatment polysomnographic characteristics (sleep architecture, respiratory disturbance, and endotypes; loop-gain, arousal threshold, upper airway collapsibility and compensation) will be used to develop a prediction model for improvement of OSA with Dronabinol treatment. This prediction model will be used for a randomized clinical trial after the completion of this trial.

Interventions

DRUGDronabinol

Open label Dronabinol treatment for two weeks.

Sponsors

VA Office of Research and Development
Lead SponsorFED
University of Illinois at Chicago
CollaboratorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

120 Veterans will be screened and enrolled to achieve 45 participants completing the study. All participants will receive oral Dronabinol treatment nightly for two weeks.

Eligibility

Sex/Gender
ALL
Age
No minimum to 65 Years
Healthy volunteers
No

Inclusion criteria

1\. AHI 15-50 per hour on pre-treatment polysomnography

Exclusion criteria

1. Positive Airway Pressure (PAP) treatment of OSA: use \> 4 hours per day for 30% of days within 3 months of enrollment. PAP use will be determined from device download data 2. Hypoglossal nerve stimulator (HNS) or oral appliance device treatment with use \> 4 hours per day for 30% of days within 3 months of enrollment. HNS use will be determined by device download and oral appliance use by self-report 3. History of upper airway surgery for OSA (except adenotonsillectomy) 4. Central or mixed apneas \>25% of respiratory events on diagnostic polysomnography 5. Arterial oxygen saturation \< 75% for \> 5% sleep time on pretreatment polysomnography 6. Body mass index \> 45 kg/m2 7. If post-bariatric surgery, weight must be stable ±5% (per electronic medical records) for at least 6 months before the first dose of the study drug 8. Active enrollment in a weight loss program 9. Shiftwork within 3 months of enrollment 10. High-risk occupation: commercial driver and pilot 11. Motor vehicle accident or near-miss incident within 1 year of enrollment 12. Current drug or habitual alcohol use or positive urine drug screen 13. Comorbid medical and psychiatric disorders: 1. Primary sleep disorders: e.g., narcolepsy, restless legs syndrome 2. Uncontrolled mood disorder or a diagnosis of schizophrenia 3. Initiation of new antidepressant or antipsychotic medication within 3 months 4. Identified as high-risk for suicide in electronic health records 5. Uncontrolled medical disorders (coronary heart disease, arrhythmia, congestive heart failure, chronic obstructive pulmonary disease, chronic hypoxemic or hypercapnic respiratory failure, stroke within 6 months of enrollment, chronic liver or kidney disease, autoimmune disorders) 14. Use of sedative-hypnotic medications within 30 days of enrollment 15. Complete blood count or liver function test values more than 1.5 times the upper limit of normal 16. Pregnancy 17. Allergy to cannabinoids or sesame oil 18. Average weekly alcohol consumption of more than 10 servings 19. Participation in other investigational protocols within 30 days of enrollment

Design outcomes

Primary

MeasureTime frameDescription
Apnea hypopnea index (AHI)2 weeksThe change in AHI after two weeks of Dronabinol treatment will be determined from before and after treatment polysomnograms.

Secondary

MeasureTime frameDescription
T<902 weeksThe change in time below 90% oxygen saturation (T\<90) after two weeks of Dronabinol treatment will be determined from before and after treatment polysomnograms.

Countries

United States

Contacts

CONTACTBharati Prasad, MD
bharati.prasad@va.gov(312) 996-8433
CONTACTKaren M Lenehan
Karen.Lenehan@va.gov(312) 569-6343
PRINCIPAL_INVESTIGATORBharati Prasad, MD

Jesse Brown VA Medical Center, Chicago, IL

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 12, 2026