- Conditions
- Chronic Rhinosinusitis Without Nasal Polyps
- Interventions
- OPN-375, Placebo
- Drug
- Lead sponsor
- Optinose US Inc.
- Industry
- Eligibility
- 12 Years to 17 Years
- Enrollment
- 84 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2025 – 2028
- U.S. locations
- 21
- States / cities
- Gilbert, Arizona • Orange, California • Sacramento, California + 17 more
Source: ClinicalTrials.gov public record
Updated Mar 22, 2026 · Synced May 22, 2026, 1:49 AM EDT