Clinical trial Recruiting at 1 site Interventional Ages 18 and up

Nasal Dilator Therapy for Patulous Eustachian Tube

Official title: Prospective PI-Initiated Study of Nasal Dilator Therapy in Patulous Eustachian Tube Dysfunction

Run by The Methodist Hospital Research Institute · NCT07796139 · Data updated 2026-11-12

This study tests whether wearing a nasal dilator helps reduce symptoms in adults with patulous Eustachian tube dysfunction.

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment50 (estimated)
SponsorThe Methodist Hospital Research Institute
Academic / other
Locations1 site (Houston, Texas)
StatusRecruiting
StartedApril 22, 2026
Main results expectedNovember 1, 2026
Study endsApril 22, 2027
Registry record updatedAugust 31, 2026
Trial IDNCT07796139 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults 18 years or older with clinician-confirmed patulous Eustachian tube dysfunction and a positive Cottle maneuver, who can consent and complete surveys.

Probably not a fit

Patients with active middle-ear disease, nasal pathology preventing safe use, or intolerance to nasal dilators may not benefit.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is a single-arm, prospective pilot study assessing a commercially available internal nasal dilator (Airmax) in adults with confirmed patulous Eustachian tube dysfunction and a positive Cottle maneuver. Symptoms are measured at baseline, 10 minutes after first use, and at a 3–4 week follow-up using the PHI-10 questionnaire. The goal is to estimate effect sizes to guide future controlled trials, with the device used off-the-shelf and no device modification. The study is exempt from IDE requirements under applicable FDA regulations and is conducted at a single Houston Methodist otolaryngology site.

Why it matters

Potential benefit: If successful, patients may experience reduced ear fullness, autophony, and disrupted hearing when using a simple, OTC nasal dilator.

How similar studies have gone: Prior use of nasal dilators for nasal obstruction is common, but this is among the first to study them for patulous Eustachian tube symptoms.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Adults aged 18 years or older
* Treated by a clinician in the Houston Methodist Department of Otolaryngology - Head and Neck Surgery
* Positive response to the Cottle maneuver
* Able and willing to provide informed consent
* Able to complete study surveys
* Willing to avoid starting new therapies directed at patulous Eustachian tube during the study window unless medically necessary

Exclusion Criteria:

* Active middle-ear disease at screening
* Significant nasal pathology precluding safe use of a nasal dilator
* Known intolerance or hypersensitivity to nasal dilators
* Any condition judged by the investigator to increase risk or confound assessments
* Unable to provide informed consent
* Cognitive impairment preventing completion of study surveys
* Non-English speaking, as the PHI-10 and study materials are currently available only in English
* Pregnant
* Prisoner

Where it's running

  • Houston Methodist Hospital - Department of Otolaryngology-Head & Neck Surgery
    Houston, Texas, United States
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.