Please assess the completion status of the following clinical trial:

Trial Title: Safety and Efficacy of the BrainPort™ Balance Device to Improve Balance in Bilateral Vestibular Hypofunction

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: DOUBLE
- Phase: None
- Number of Arms: None

Eligibility Criteria:
Inclusion Criteria:~* Documented history of acquired bilateral vestibular dysfunction for a duration of at least one year which has been unsuccessfully treated or reached a plateau with conventional vestibular rehabilitation.~* No greater than 2 successful attempts out of 6 on the NeuroCom Equitest Sensory Organization Tests 5 and 6.~* Failure on the Rotary Chair Vestibulo-ocular Reflex (VOR) Test as evidenced by a gain of less than or equal to -2 standard deviations at frequencies of .025, and .05 Hz.~* Normal corrected vision (20/40 or better).~* Able to read and understand the informed consent form, and willing to sign the informed consent form.~* Willing to complete all follow-up evaluations required by the study protocol.~* Able to stand for a period of 20 minutes in a stationary position with weight evenly distributed without moderate pain, muscle cramping or numbness in the lower extremities.~Exclusion Criteria:~* Neurological disorders other than bilateral vestibular disorder, as determined by medical history and neurological screening procedure.~* Current oral health problems as determined by health questionnaire and an examination of the oral cavity.~* Cigarette smokers and those who use chewing tobacco.~* Currently taking either benzodiazepine or barbiturate medication.~* Any medical condition as determined by the health questionnaire that would interfere with performance on the postural stability evaluation tests.~* Known neuropathies of tongue or skin tactile system.~* Peripheral neuropathies of the lower extremities.~* Prior exposure to BrainPort™ balance device (does not apply to control group subjects who cross over).~* Subjects who are unwilling or unable to adhere to all study requirements, including completion of the training period, evaluation tests, and return to clinic for a follow-up visit.~* Subjects who have undergone middle ear or other surgery with sacrifice or damage to the chorda tympani, lingual, or hypoglossal nerve.~* Subjects who have an implanted device such as a pacemaker or defibrillator.~* If the subject is female, she is pregnant.~* If the subject is unwilling to discontinue medications for dizziness or imbalance 48 hours prior to beginning the study.

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 85 Years
- Healthy Volunteers: f

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