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Nasal Dilator Therapy for Patulous Eustachian Tube Dysfunction

25. august 2026 opdateret af: Vrabec, Jeffrey M.D., The Methodist Hospital Research Institute

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

The Eustachian tube connects the middle ear to the back of the nose and throat, providing ventilation of the middle ear. People with a patulous Eustachian tube perceive the tube stays open continuously. This can make a person's own voice and breathing sound unusually loud in the ear and can cause a feeling of fullness or blocked hearing. There is currently no agreed-upon first treatment for these symptoms.

Some people with this condition notice their symptoms improve when they gently pull the cheek outward to widen the nasal passage. A nasal dilator is a small, soft device worn just inside the nostrils that does something similar by holding the nasal passage more open. Nasal dilators are sold over the counter and are commonly used for stuffy nose and snoring. They have not been studied as a treatment for patulous Eustachian tube.

This study will look at whether wearing a nasal dilator reduces symptoms in adults with patulous Eustachian tube. About 50 adults treated at Houston Methodist will take part. Everyone in the study receives the nasal dilator; there is no placebo or comparison group.

Participants complete a 10-question symptom survey before using the device, again 10 minutes after putting it in for the first time, and once more at a follow-up clinic visit about 3 to 4 weeks later. Between visits, participants wear the device at home and keep track of how often they use it. At the follow-up visit they also answer questions about whether the device was comfortable and easy to use, and whether they had any side effects. Participation lasts about 3 to 4 weeks.

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

This is a single-arm, prospective, pre/post pilot study of a commercially available internal nasal dilator (Airmax) in adults with clinically confirmed patulous Eustachian tube dysfunction and a positive Cottle maneuver. Symptom burden is measured with the Patulous Eustachian Tube Handicap Inventory-10 (PHI-10) at baseline, 10 minutes after first device application, and at a 3-4 week follow-up visit. The study is intended to generate effect-size estimates to inform the design of subsequent controlled trials. The device is over-the-counter, 510(k)-exempt, used without modification, and the study is exempt from IDE requirements under 21 CFR 812.2(c).

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

50

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Undersøgelse Kontakt Backup

Studiesteder

    • Texas
      • Houston, Texas, Forenede Stater, 77030
        • Rekruttering
        • Houston Methodist Hospital - Department of Otolaryngology-Head & Neck Surgery
        • Kontakt:
        • Kontakt:
        • Ledende efterforsker:
          • Jeffrey Vrabec, MD

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ingen

Beskrivelse

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

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: N/A
  • Interventionel model: Enkelt gruppeopgave
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Internal Nasal Dilator
Participants receive a commercially available internal nasal dilator (Airmax) at the baseline clinic visit, along with sizing, fitting, and hygiene instruction from trained study staff. Participants apply the device during the visit and continue at-home use per the study wear schedule until the follow-up visit approximately 3 to 4 weeks later.
Single-patient-use, over-the-counter internal nasal dilator worn inside the nasal vestibule to laterally support the nasal valve and increase nasal cross-sectional area. Devices are supplied in sealed retail packaging without modification. Participants wear the device per the prescribed schedule from the baseline visit until the follow-up visit at 3 to 4 weeks.
Andre navne:
  • Airmax Nasal Dilator

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Change in Patulous Eustachian Tube Handicap Inventory-10 (PHI-10) score
Tidsramme: Baseline and 3 to 4 weeks
The PHI-10 is a 10-item validated patient-reported instrument measuring symptom burden in patulous Eustachian tube. Total scores range from 0 to 40, with lower scores indicating fewer symptoms. The outcome is the change in total score from baseline to the follow-up visit.
Baseline and 3 to 4 weeks

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Acute change in PHI-10 score after first device application
Tidsramme: Baseline and 10 minutes after first application
Change in PHI-10 total score from baseline to 10 minutes (±5 minutes) after the participant first applies the nasal dilator, assessing immediate symptom response. Scores range 0 to 40; lower is better.
Baseline and 10 minutes after first application
Adherence to device wear
Tidsramme: Baseline through 3 to 4 weeks
Self-reported average hours of device wear per day and percentage of prescribed days on which the device was worn, collected at the follow-up visit.
Baseline through 3 to 4 weeks
Device usability and acceptability
Tidsramme: 3 to 4 weeks
Participant ratings of comfort, ease of use, and willingness to continue use, each scored on a 5-point Likert scale ranging from 1 to 5, with higher scores indicating greater acceptability.
3 to 4 weeks
Global Rating of Change
Tidsramme: 3 to 4 weeks
Single-item participant-reported rating of overall change in symptoms since baseline, collected at the follow-up visit.
3 to 4 weeks
Number of participants with device-related adverse events
Tidsramme: Baseline through 3 to 4 weeks
Count of participants experiencing device-related adverse events, including nasal irritation, pressure discomfort, and epistaxis. Assessed at first wear, at the follow-up visit, and by interim report between visits.
Baseline through 3 to 4 weeks

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Efterforskere

  • Ledende efterforsker: Jeffrey Vrabec, MD, The Methodist Hospital Research Institute

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

22. april 2026

Primær færdiggørelse (Anslået)

1. november 2026

Studieafslutning (Anslået)

22. april 2027

Datoer for studieregistrering

Først indsendt

25. august 2026

Først indsendt, der opfyldte QC-kriterier

25. august 2026

Først opslået (Faktiske)

31. august 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

31. august 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

25. august 2026

Sidst verificeret

1. august 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • PRO00042612

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

IPD-planbeskrivelse

Individual participant data will not be shared. This is a single-site pilot study; data will be reported in aggregate form only.

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ingen

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ja

produkt fremstillet i og eksporteret fra U.S.A.

Ja

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