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Showing 1–8 of 8 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: OPN-375 Clear all
Completed Phase 3 Interventional Results available

Study Evaluating the Efficacy and Safety of Intranasal Administration of OPN-375 in Subjects With Chronic Rhinosinusitis Without the Presence of Nasal Polyps

NCT03960580
View directory record Official record
Conditions
Chronic Rhinosinusitis
Interventions
OPN-375
Drug
Lead sponsor
Optinose US Inc.
Industry
Eligibility
18 Years and older
Enrollment
223 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
20
States / cities
Birmingham, Alabama • Folsom, California • La Mesa, California + 16 more
Source: ClinicalTrials.gov public record
Updated Dec 20, 2023 · Synced Sep 2, 2026, 1:52 AM EDT
Completed Phase 3 Interventional Results available

Study Evaluating the Efficacy and Safety of Intranasal Administration of 100, 200, and 400 μg of Fluticasone Propionate Twice a Day (BID) Using a Novel Bi Directional Device in Subjects With Bilateral Nasal Polyposis Followed by an 8-Week Open-Label Extension Phase to Assess Safety

NCT01622569
View directory record Official record
Conditions
Bilateral Nasal Polyposis
Interventions
Fluticasone Propionate
Drug
Lead sponsor
Optinose US Inc.
Industry
Eligibility
18 Years and older
Enrollment
323 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
30
States / cities
Tucson, Arizona • Bakersfield, California • Fresno, California + 25 more
Source: ClinicalTrials.gov public record
Updated Dec 25, 2018 · Synced Sep 2, 2026, 1:52 AM EDT
Active, not recruiting Phase 3 Interventional

OPN-375 Efficacy and Safety in Adolescents With Bilateral Nasal Polyps

NCT03747458
View directory record Official record
Conditions
Bilateral Nasal Polyposis
Interventions
OPN-375
Drug
Lead sponsor
Optinose US Inc.
Industry
Eligibility
12 Years to 17 Years
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2026
U.S. locations
22
States / cities
Gilbert, Arizona • Bakersfield, California • Fresno, California + 18 more
Source: ClinicalTrials.gov public record
Updated May 7, 2026 · Synced Sep 2, 2026, 1:52 AM EDT
Completed Phase 3 Interventional Results available

Efficacy and Safety Study of Intranasal Administration of 100, 200, and 400 μg of Fluticasone Propionate Using a Novel Bi-directional Device

NCT01624662
View directory record Official record
Conditions
Bilateral Nasal Polyposis
Interventions
Fluticasone propionate
Drug
Lead sponsor
Optinose US Inc.
Industry
Eligibility
18 Years and older
Enrollment
323 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
10
States / cities
Stockton, California • Centennial, Colorado • Louisville, Kentucky + 7 more
Source: ClinicalTrials.gov public record
Updated Dec 4, 2018 · Synced Sep 2, 2026, 1:52 AM EDT
Completed Phase 3 Interventional Results available

Efficacy & Safety of OPN-375 Adults With Bilateral Nasal Polyps Using Nasoendoscopic Video

NCT03591068
View directory record Official record
Conditions
Nasal Polyposis
Interventions
Fluticasone Propionate
Drug
Lead sponsor
Optinose US Inc.
Industry
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
2
States / cities
Aurora, Colorado • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 2, 2020 · Synced Sep 2, 2026, 1:52 AM EDT
Completed Phase 3 Interventional Results available

12-Month OL Intranasal Fluticasone Propionate BID Using OptiNose Device

NCT01623310
View directory record Official record
Conditions
Nasal Polyps
Interventions
Fluticasone Propionate
Drug
Lead sponsor
Optinose US Inc.
Industry
Eligibility
18 Years and older
Enrollment
223 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
16
States / cities
Birmingham, Alabama • Brandon, Florida • Normal, Illinois + 13 more
Source: ClinicalTrials.gov public record
Updated Jan 23, 2018 · Synced Sep 2, 2026, 1:52 AM EDT
Completed Phase 3 Interventional Results available

Study Evaluating the Efficacy and Safety of Intranasal Administration of OPN-375 in Subjects With Chronic Rhinosinusitis With or Without the Presence of Nasal Polyps

NCT03781804
View directory record Official record
Conditions
Chronic Rhinosinusitis
Interventions
OPN-375
Drug
Lead sponsor
Optinose US Inc.
Industry
Eligibility
18 Years and older
Enrollment
332 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
46
States / cities
Gilbert, Arizona • Bakersfield, California • Folsom, California + 40 more
Source: ClinicalTrials.gov public record
Updated May 28, 2024 · Synced Sep 2, 2026, 1:52 AM EDT
Recruiting Phase 3 Interventional

Efficacy and Safety of 186 mcg of OPN-375 Nasal Spray Twice a Day (BID) in Adolescents With Chronic Rhinosinusitis Without Nasal Polyps

NCT06850805
View directory record Official record
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 Sep 2, 2026, 1:52 AM EDT