# Gas Supply, Demand and Middle Ear Gas Balance -- Diagnosis of Eustachian Tube Dysfunction

> **NCT01974726** · NA · TERMINATED · sponsor: **University of Pittsburgh** · enrollment: 95 (actual)

## Conditions studied

- Eustachian Tube Dysfunction

## Interventions

- **OTHER:** ET Stress test
- **OTHER:** Sonotubometry
- **OTHER:** Forced Response Test (FRT)
- **OTHER:** Inflation Deflation Test (IDT)
- **OTHER:** Maneuver Sequence
- **OTHER:** 9-Step Test
- **OTHER:** Tubomanometry
- **OTHER:** Videoendoscopic assessment of ETF
- **OTHER:** Pressure chamber ET test

## Key facts

- **NCT ID:** NCT01974726
- **Lead sponsor:** University of Pittsburgh
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** TERMINATED
- **Start date:** 2013-10
- **Primary completion:** 2019-06-27
- **Final completion:** 2019-06-27
- **Target enrollment:** 95 (ACTUAL)
- **Why stopped:** End of funding
- **Last updated:** 2020-10-08

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01974726

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01974726, "Gas Supply, Demand and Middle Ear Gas Balance -- Diagnosis of Eustachian Tube Dysfunction". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT01974726. Licensed CC0.

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