Gas Supply, Demand and Middle Ear Gas Balance -- Preliminary Protocol
2 other identifiers
interventional
2
1 country
1
Brief Summary
The purpose of this study is to gather more information on Eustachian tube function and middle-ear pressures during flying. Ten subjects with tympanostomy tubes (plastic tubes inserted in the eardrums) in their ears or holes in their ear-drums will undergo flight simulation in a pressure chamber. Their middle-ear pressures and Eustachian tube function will be monitored at various chamber pressures.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable
Started Oct 2013
Longer than P75 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
September 27, 2013
CompletedStudy Start
First participant enrolled
October 1, 2013
CompletedFirst Posted
Study publicly available on registry
October 7, 2013
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 3, 2018
CompletedStudy Completion
Last participant's last visit for all outcomes
April 3, 2018
CompletedAugust 7, 2019
August 1, 2019
4.5 years
September 27, 2013
August 4, 2019
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
middle-ear pressures
middle-ear pressure will be monitored continuously during experiment
single visit
Secondary Outcomes (1)
Eustachian tube function
single visit
Study Arms (1)
flight simulation
EXPERIMENTALflight simulation in pressure chamber
Interventions
Eligibility Criteria
You may qualify if:
- adults 18-50 years of age
- have unilateral or bilateral holes in the eardrums/patent tympanostomy tubes
- otherwise healthy
- ability to read and comprehend English
You may not qualify if:
- drainage through either tube or hole in the eardrum
- cold or allergic rhinitis on presentation
- syndrome predisposing to otitis media
- history of ossicular reconstruction
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
University of Pittsburgh Middle Ear Physiology Laboratory
Pittsburgh, Pennsylvania, 15213, United States
Study Officials
- PRINCIPAL INVESTIGATOR
Cuneyt M Alper, MD
University of Pittsburgh
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NA
- Masking
- NONE
- Purpose
- BASIC SCIENCE
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor, Otolaryngology
Study Record Dates
First Submitted
September 27, 2013
First Posted
October 7, 2013
Study Start
October 1, 2013
Primary Completion
April 3, 2018
Study Completion
April 3, 2018
Last Updated
August 7, 2019
Record last verified: 2019-08
Data Sharing
- IPD Sharing
- Will not share