Effect of Novel Exhalational Delivery System With Fluticasone (EDS-FLU) on Eustachian Tube Dysfunction (ETD)

March 9, 2026 updated by: Arthur Wu, Cedars-Sinai Medical Center

Effect of Novel Exhalational Delivery System With Fluticasone (EDS-FLU) on Eustachian Tube Dysfunction (ETD) in a Multi-center, Double-Blinded, Placebo-controlled Trial

Intranasal nasal steroid sprays are the mainstay of treatment for chronic Eustachian tube dysfunction despite having little supportive evidence in the literature. A novel, commercially available nasal spray delivery system is available now for fluticasone that improves its delivery to the nasopharynx. The hypothesis of this study is that fluticasone using the novel spray system is effective for Eustachian tube dysfunction (ETD).

Study Overview

Detailed Description

BACKGROUND AND RATIONALE

Eustachian tube dysfunction (ETD) can be a symptom of allergic rhinitis, non-allergic rhinitis, or chronic rhinosinusitis. However, it can also be a separate entity with patients displaying no other symptoms of the previously mentioned diseases. There is currently no FDA- approved medication specifically for eustachian tube dysfunction, but most otolaryngologists, allergists, and primary care physicians employ multiple different over-the-counter and prescription medications for its treatment. Most common are oral and topical antihistamines, nasal steroid sprays, topical and oral decongestants, and oral steroids. Nasal steroid sprays, which are FDA-approved for allergic rhinitis, are most frequently used for chronic ETD despite a lack of large clinical trials to support their use. These sprays do have good safety profiles, are frequently available over-the-counter, and do have good data on their efficacy in rhinitis and sinusitis.

Fluticasone nasal spray is available over the counter and is a nasal steroid spray. It is frequently recommended or prescribed for chronic eustachian tube dysfunction. However, its efficacy and the efficacy of all nasal sprays may be limited by the access of previously available sprays into the nasopharynx. The level of evidence for these sprays in chronic ETD is poor overall with only one randomized controlled trial in adults. This study determined no benefit over placebo. In studies determining the deposition of nasal sprays, most of the spray is deposited in the front of the nasal cavity over the inferior turbinates and very little gets into the sinus cavities or nasopharynx. A new exhalational delivery system fluticasone spray (EDS-FLU) has been FDA-approved for patients with chronic rhinosinusitis with polyps. The main difference between this spray and previously available sprays is that it penetrates deeper into the sinuses and also to the nasopharynx, the location of the eustachian tubes. In this system, the user blows out while pumping the spray bottle and his/her breath is the driving force of the spray bottle. Blowing out also elevates the soft palate, seals the nasopharynx, and contains all the spray into the nasal cavity, sinuses, and nasopharynx. In a traditional spray, the soft palate is at resting position, and the spray can pass through the nasal cavity and down into the oropharynx and mouth. This is typically perceived by many users as postnasal drip after the use of nasal sprays. The investigators have previously published a retrospective review of the use of EDS-FLU in patients with at least 1 month of ETD symptoms and found that 79% had improvement more than the minimal clinically important difference. Thirty-six percent of patients normalized with regards to symptoms, and 80% of patients with pre- and post-treatment tympanometry normalized their tympanogram. This study will compare placebo to fluticasone exhalational nasal spray system (Xhance) in a randomized, controlled study.

Study Type

Interventional

Enrollment (Estimated)

80

Phase

  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

    • California
      • Los Angeles, California, United States, 90048
        • Recruiting
        • Cedars-Sinai Medical Center
        • Contact:
        • Principal Investigator:
          • Arthur Wu, MD
        • Contact:
      • Sacramento, California, United States, 95661
        • Recruiting
        • Sacramento Ear, Nose & Throat
        • Contact:
        • Contact:
        • Principal Investigator:
          • Randall A Ow, MD
    • Indiana
      • Indianapolis, Indiana, United States, 46202
        • Recruiting
        • Indiana University
        • Contact:
        • Contact:
        • Principal Investigator:
          • Elisa Illing, MD
    • Louisiana
      • New Orleans, Louisiana, United States, 70121
        • Recruiting
        • Ochsner Health System
        • Contact:
        • Principal Investigator:
          • Edward McCoul, MD

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

14 years to 76 years (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Age greater than or equal to 18 years old, <80 years old
  • Chronic Eustachian tube dysfunction defined as:

    • Symptoms in one or both ears > 3 months AND
    • ETDQ-7 score >14.5 AND
    • Type B, C, or As tympanometry
  • Female subjects of childbearing potential must have a negative urine pregnancy test at screening and throughout the study duration.

Exclusion Criteria:

  • Age <18 years old
  • Known history of otologic surgery (excluding myringotomy or myringotomy tubes)
  • Use of any additional intranasal medication
  • Tympanic membrane perforation
  • Adhesive otitis media
  • Cholesteatoma or significant retraction pocket
  • Middle ear effusion
  • Nasopharyngeal tumor
  • Any history of head and neck cancer
  • Any history of head and neck irradiation
  • Any history of temporomandibular disorder or prior surgery to the temporomandibular joint
  • Any medical condition that the investigator deems inappropriate for enrollment

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Placebo Comparator: Arm 1 (Placebo)
Arm 1 (placebo) will get placebo spray per day.
The Placebo is made of the following ingredients: Purified Water, Microcrystalline Cellulose RC-591, Dextrose, Anhydrous, EDTA Disodium Dihydrate, Benzalkonium Chloride Solution 50%, Polysorbate 80 (Tween 80, HP-LQ-(MH)), Sodium Hydroxide, and Hydrochloric Acid. Patients will use two sprays in each nostril twice a day
Active Comparator: Arm 2 (EDS-FLU)
Arm 2 (EDS-FLU) will get 744 mcg of fluticasone propionate per day.
Patients will use two sprays in each nostril twice a day for 6 weeks and additional 6 weeks (open label).

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
7-Item Eustachian Tube Dysfunction Questionnaire (ETDQ-7)
Time Frame: visit 2 (week 6)

Eustachian tube dysfunction symptoms measured by the validated quality of life 7-Item Eustachian Tube Dysfunction Questionnaire (ETDQ-7) at visit 2.

The scale is from 1 (no problem) to 7 (severe problem).

visit 2 (week 6)
7-Item Eustachian Tube Dysfunction Questionnaire (ETDQ-7)
Time Frame: visit 3 (week 12)

Eustachian tube dysfunction symptoms measured by the validated quality of life 7-Item Eustachian Tube Dysfunction Questionnaire (ETDQ-7) at visit 3.

The scale is from 1 (no problem) to 7 (severe problem).

visit 3 (week 12)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Arthur Wu, MD, Cedars-Sinai Medical Center

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

April 20, 2022

Primary Completion (Estimated)

June 30, 2027

Study Completion (Estimated)

December 31, 2027

Study Registration Dates

First Submitted

February 22, 2022

First Submitted That Met QC Criteria

March 8, 2022

First Posted (Actual)

March 11, 2022

Study Record Updates

Last Update Posted (Actual)

March 11, 2026

Last Update Submitted That Met QC Criteria

March 9, 2026

Last Verified

March 1, 2026

More Information

Terms related to this study

Other Study ID Numbers

  • IIT-WU-2021-EuPEN

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

Yes

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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