Please assess the completion status of the following clinical trial:

Trial Title: Gas Supply, Demand and Middle Ear Gas Balance: Specific Aim 3

Study Design Characteristics:
- Allocation: None
- Intervention Model: SINGLE_GROUP
- Observational Model: None
- Primary Purpose: BASIC_SCIENCE
- Time Perspective: None
- Masking: NONE
- Phase: EARLY_PHASE1
- Number of Arms: 1.0

Eligibility Criteria:
Inclusion Criteria:~* Otherwise healthy adults aged 18 to 50 years, inclusive~* No history of significant ME disease~* No history of past ME surgeries~* Able to comprehend study risks and provide written Informed Consent~Exclusion Criteria:~* Have any chronic health problem~* Have ME fluid or otitis media (OM)at the time of presentation~* Have drainage through the tympanostomy tube at the time of testing~* Taking any prescription drug with the exception of those for birth control that would interfere with study per study MD~* Have a known or suspected allergy/adverse reaction to any of the study drugs use to prepare the tympanic membrane for ventilation tube insertion or the nasopharynx for EMG needle insertion~* Have a hearing threshold \>15 dB or a \>10 dB air-bone gap at any of the speech frequencies~* Pregnant or nursing~* Temporary exclusion: expected need for seasonal allergy med during study

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 50 Years
- Healthy Volunteers: t

Study Arms:
- healthy adults (Type: EXPERIMENTAL): Experiment 1 -- variation of ear-canal pressure; Experiment 2 -- varied middle-ear gas compositions; Experiment 3 -- variation of middle-ear pressure

Based on this trial design, predict the completion outcome and termination type (if applicable).