NCT04594057

Brief Summary

This study is designed to examine the true impact inner-ear dysfunction has on patient head movement kinematics, activity levels, and participation, and (2) to explore the efficacy of rehabilitation on laboratory, clinical, and community-based outcomes in people following surgical removal of a schwannoma from the inner-ear nerve.

Trial Health

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Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
10

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Dec 2019

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
terminated

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

Study Start

First participant enrolled

December 10, 2019

Completed
9 months until next milestone

First Submitted

Initial submission to the registry

September 11, 2020

Completed
1 month until next milestone

First Posted

Study publicly available on registry

October 20, 2020

Completed
2.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2022

Completed
Last Updated

March 19, 2025

Status Verified

October 1, 2020

Enrollment Period

3.1 years

First QC Date

September 11, 2020

Last Update Submit

March 13, 2025

Conditions

Outcome Measures

Primary Outcomes (4)

  • Change in Dizziness Handicap Inventory (DHI)

    Dizziness Handicap Inventory (DHI): The DHI is a self assessment inventory designed to evaluate the self-perceived handicap effects imposed by dizziness or unsteadiness and has documented test-retest and internal consistency reliability in PwMS. The DHI consists of 25 questions subgroup into functional, emotional, and physical components. The total score ranges from 0-100, with higher scores indicating greater handicap. Change from baseline to 6 weeks post surgery.

    Change baseline to 6 weeks

  • Change in miniBEST test

    the 14-item Mini-BESTest which includes four sections (anticipatory postural adjustments, reactive postural responses, sensory orientation, and stability in gait) relevant to postural control and stability in MS. The maximum possible score is 28 with higher scores indicating better balance. Tasks within the Mini-BEST test require head and/ or body motion, which will be assessed using body-worn 3D accelerometers. The Change from the baseline score to the 6 weeks post surgery score.

    Change from baseline to 6 weeks

  • Change in Community-simulated Ambulatory Task (CAT)

    Community-simulated walking task consisting of turns, stairs, and inside/outside ambulation requiring specific use of head and trunk turns. Change from baseline to 6 weeks post surgery.

    Change from Baseline to 6 weeks

  • Change in Passive Angular Vestibular Reflex Testing

    The angular vestibular ocular reflex (aVOR) gain will be calculated as the ratio of the de-saccaded eye velocity Area Under the Curve (AUC) over the head velocity AUC between the onset of the head impulse to the moment when head velocity returns to zero. Change from baseline to 6 weeks post surgery in aVOR gain.

    Change from Baseline to 6 weeks

Secondary Outcomes (9)

  • Activities Balance Confidence Scale (ABC)

    Baseline, 10 days post surgery, 6 weeks, and 12 weeks post surgery.

  • Life Space Assessment

    Baseline, 10 days post surgery, 6 weeks, and 12 weeks post surgery.

  • Dynamic Visual Acuity

    Baseline, 10 days post surgery, 6 weeks, and 12 weeks post surgery.

  • Compensatory Saccade Frequency

    Baseline, 10 days post surgery, 6 weeks, and 12 weeks post surgery.

  • Daily Step Activity

    Baseline, 10 days post surgery, 6 weeks, and 12 weeks post surgery.

  • +4 more secondary outcomes

Other Outcomes (3)

  • Two-Minute Walk (2MWT)

    Baseline, 10 days post surgery, 6 weeks, and 12 weeks post surgery.

  • Visual Analog Scale of Dizziness

    Baseline, 10 days post surgery, 3 weeks, 6 weeks, 9 weeks, and 12 weeks post surgery.

  • Visual Analog Scale of Unsteadiness

    Baseline, 10 days post surgery, 3 weeks, 6 weeks, 9 weeks, and 12 weeks post surgery.

Study Arms (2)

Early Start

ACTIVE COMPARATOR

Begin 6 weeks of gaze and postural stability training 10-14 days following surgery.

Behavioral: Gaze and Postural Retraining Exercise

Delayed Start

EXPERIMENTAL

Begin 6 weeks of gaze and postural stability training 6 weeks following surgery.

Behavioral: Gaze and Postural Retraining Exercise

Interventions

Gaze and Postural Stability The duration and content of the Gaze and Postural Stability (GPS) intervention is specifically designed to focus on gradually increasing difficulty of gaze and postural stability exercises. The target duration of each in clinic visit will be 90 min (15 min of gaze stability exercises, 15 min of postural stability exercises and approximately 60 min for the standard care control intervention with rest interspersed throughout the exercise session. Gaze stability exercise will consist of progressive Vestibular-occular training. Postural stability exercises will consist of progressive static and dynamic postural training.

Delayed StartEarly Start

Eligibility Criteria

Age18 Years - 85 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Reports of dizziness as indicated by Dizziness handicap inventory score \>0
  • Undergoing a vestibular schwannoma resection surgery and/or vestibular hypofunction diagnosed using bedside examination
  • Able to perform community ambulation

You may not qualify if:

  • Presence of cardiovascular, orthopedic, or other neurologic diagnosis that limits ability to complete study testing, or causes other forms of dizziness.
  • Blindness
  • Peripheral neuropathy

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Utah

Salt Lake City, Utah, 84108, United States

Location

MeSH Terms

Conditions

Neuroma, AcousticVestibular Diseases

Condition Hierarchy (Ancestors)

NeurilemmomaNeuroendocrine TumorsNeuroectodermal TumorsNeoplasms, Germ Cell and EmbryonalNeoplasms by Histologic TypeNeoplasmsNeuromaNerve Sheath NeoplasmsNeoplasms, Nerve TissueCranial Nerve NeoplasmsNervous System NeoplasmsNeoplasms by SitePeripheral Nervous System NeoplasmsVestibulocochlear Nerve DiseasesRetrocochlear DiseasesEar DiseasesOtorhinolaryngologic DiseasesOtorhinolaryngologic NeoplasmsCranial Nerve DiseasesNervous System DiseasesLabyrinth Diseases

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 11, 2020

First Posted

October 20, 2020

Study Start

December 10, 2019

Primary Completion

December 31, 2022

Study Completion

December 31, 2022

Last Updated

March 19, 2025

Record last verified: 2020-10

Data Sharing

IPD Sharing
Will not share

Locations