ClinicalTrials.gg
CompletedNCT04875013Updated Dec 20, 2022Results posted

Interactive Rehabilitation for Adults With Unilateral Vestibular Weakness

An interventional study of Vestibular rehabilitation with dynamic posturography in Dizziness, Equilibrium; Disorder, Labyrinth and Inner Ear Injury, sponsored by Eytan A. David. Completed at 1 site in Canada. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2022-12-20.

Sponsored by Eytan A. David · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
13
Allocation
Not applicable
Ages
18 Years to 80 Years
Sex
All
01

Study summary

People that have difficulty with balance, such as those with damage to their inner ear, have a higher risk of falling, which may lead to anxiety and reduced quality of life. Some individuals that have lost part of their sense of balance can learn to compensate using information from their vision, their sense of where their limbs are in space, and from other balance organs that are still intact. Our study aims to determine if virtual reality used together with information from footplate sensors can be used to train people with balance problems to compensate for their inner ear deficits.

02

Conditions studied

  • Dizziness
  • Equilibrium; Disorder, Labyrinth
  • Inner Ear Injury

Browse trials for

03

In context

Dizziness

226 studies on the registry are indexed under Dizziness; 56 are open to participants now.

This study's enrollment of 13 is below the median of 43 across 170 interventional studies indexed under Dizziness.

Browse Dizziness studies →

Lead sponsor

Eytan A. David is the lead sponsor of 2 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Adult Age 18-80
  • Unilateral vestibular weakness confirmed one or more of:

    • Videonystagmography
    • VEMP
  • Or unilateral vestibular weakness idiopathic, not yet diagnosed (NYD)
  • Persistent imbalance following diagnosis of resolved benign paroxysmal positional vertigo (BPPV)
  • Symptomatic
  • Long-standing/persistent symptoms greater than one year

Exclusion criteria

Exclusion Criteria:

  • Orthopedic deficit (eg. lower body joint dysfunction or lower joint replacement)
  • Neurological deficit or proprioception deficit
  • Diabetes
  • Poor vision or blindness
  • Fluctuating vestibular symptoms, or condition known to fluctuate eg. Menière's disease, perilymphatic fistula (PLF) or superior canal deshicsence (SDCS)
  • Active benign paroxysmal positional vertigo (BPPV)
  • Undergoing treatment which may affect balance or ability to stand
  • Cognitive impairment that prevents understanding and responding to instructions required to complete the study
  • Inability to provide
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
13 participants (actual)

Study arms

  • Experimental
    Vestibular rehabilitation with dynamic posturography

    12 sessions, twice per week, of rehabilitation exercises last about 20 minutes, using CDP and interactive visual feedback

    Device: Vestibular rehabilitation with dynamic posturography

Interventions

  • DeviceVestibular rehabilitation with dynamic posturography

    Rehabilitation exercises guided by an interactive display and measured by a footplate sensor

06

What researchers measure

Primary outcomes

  1. Change in Sensory Organization Test (SOT) Composite Score (Score After Retraining Minus Score at Baseline)

    Change in composite score of Sensory Organization Test (SOT) (Scores from 0-100; higher scores indicate better function); Lower scores indicate larger amount of sway Calculated as a composite of the 6 individual conditions of the SOT: 1. Eyes open on firm surface 2. Eyes closed on firm surface 3. Eyes open with sway referenced visual 4. Eyes open on sway referenced support surface 5. Eyes close on sway referenced support surfrace 6. Eyes open on sway referenced support surface and visual

    Time frame: Through study completion, 12 rehabilitation sessions, an average of 7 weeks

  2. Change in Dizziness Handicap Inventory Score (Score After Retraining Minus Score at Baseline)

    Change in Dizziness Handicap Inventory (DHI); scale from 0-100; higher scores indicate greater disability; 16-34 Points (mild handicap), 36-52 Points (moderate handicap), 54+ Points (severe handicap)

    Time frame: Through study completion, 12 rehabilitation sessions, an average of 7 weeks

  3. Change in Activities-specific Balance Confidence Scale Score (Score After Retraining Minus Score at Baseline)

    Change in Activities-specific Balance Confidence (ABC) score; (Scores from 0-100; higher scores indicate greater confidence in performing activities of daily living)

    Time frame: Through study completion, 12 rehabilitation sessions, an average of 7 weeks

  4. Change in Fall Efficacy Scale-International (FES-I) (Score After Retraining Minus Score at Baseline)

    Change in Fall Efficacy Scale-International (FES-I); possible scores 16-64, higher score indicates greater perceived fall risk

    Time frame: Through study completion, 12 rehabilitation sessions, an average of 7 weeks

  5. Change in Limits of Stability Area (Area After Retraining Minus Area at Baseline)

    Change in endpoint excursion and maximum excursion functional stability region area, calculated from Limits of Stability (LOS) score Higher score indicates an ability to volitionally lean to larger angles. 100% of theoretical maximum in all directions would give an area of 28284. LOS excursion scores were calculated by the instrument software, from which we calculated the area of the endpoint excursion functional stability region (the sum of areas between adjacent Endpoint Excursion limits) and the area of the maximum excursion functional stability region (the sum of areas between adjacent Maximum Excursion limits) using published methods (Alvarez-Otero R, Perez-Fernandez N. The limits of stability in patients with unilateral vestibulopathy. Acta Oto-laryngol. 2017;137(10):1-6. doi:10.1080/00016489.2017.1339326)

    Time frame: Through study completion, 12 rehabilitation sessions, an average of 7 weeks

Secondary outcomes

  1. Change in Sensory Organization Test Scores for Conditions 1 to 6 (Scores After Retraining Minus Scores at Baseline)

    Change in mean Sensory Organization Test Scores for conditions 1 through 6; (Scores from 0-100; higher scores indicate better function) The 6 conditions are: 1. Eyes open on firm surface 2. Eyes closed on firm surface 3. Eyes open with sway referenced visual 4. Eyes open on sway referenced support surface 5. Eyes close on sway referenced support surfrace 6. Eyes open on sway referenced support surface and visual

    Time frame: Through study completion, 12 rehabilitation sessions, an average of 7 weeks

  2. Change in Sensory Organization Test Vestibular Contribution (Ratio After Retraining Minus Ratio at Baseline)

    Change in mean value of Sensory Organization Test condition 5/mean value of SOT conditions 1; measured as a ratio, higher scores indicate a greater vestibular contribution to balance deficit

    Time frame: Through study completion, 12 rehabilitation sessions, an average of 7 weeks

  3. Change in Limits of Stability Directional Control Component (Score After Retraining Minus Score at Baseline)

    Limits of Stability test mean value of directional control of limits of stability; (Scores from 0-100; higher scores indicate better function)

    Time frame: Through study completion, 12 rehabilitation sessions, an average of 7 weeks

  4. Change in Endpoint and Maximum Excursion Values From Limits of Stability Test (Score After Retraining Minus Score at Baseline)

    Limits of Stability test mean endpoint excursion value and maximum excursion point; (Scores from 0-100; higher scores indicate better function)

    Time frame: Through study completion, 12 rehabilitation sessions, an average of 7 weeks

Other outcomes

  1. Adherence to Rehabilitation Protocol

    Percentage of subjects that complete 12 sessions

    Time frame: Through study completion, maximum of 12 weeks

  2. Missed Sessions

    Mean number of missed and rescheduled rehabilitation sessions

    Time frame: Through study completion, maximum of 12 weeks

07

Results

Posted Dec 20, 2022

Participant flow

Participant flow — Overall Study
MilestoneVestibular Rehabilitation With Dynamic Posturography
Started13
Post-treatment assessment13
Completed9
Not completed4

Outcome measures

PrimaryChange in Sensory Organization Test (SOT) Composite Score (Score After Retraining Minus Score at Baseline)

Change in composite score of Sensory Organization Test (SOT) (Scores from 0-100; higher scores indicate better function); Lower scores indicate larger amount of sway Calculated as a composite of the 6 individual conditions of the SOT: 1. Eyes open on firm surface 2. Eyes closed on firm surface 3. Eyes open with sway referenced visual 4. Eyes open on sway referenced support surface 5. Eyes close on sway referenced support surfrace 6. Eyes open on sway referenced support surface and visual

Time frame:
Through study completion, 12 rehabilitation sessions, an average of 7 weeks
Reported as:
Median · SOT composite score
Change in Sensory Organization Test (SOT) Composite Score (Score After Retraining Minus Score at Baseline)
SOT composite scoreVestibular Rehabilitation With Dynamic Posturography
Change in Sensory Organization Test (SOT) Composite Score (Score After Retraining Minus Score at Baseline)8.8 (0.6 to 19.1)
PrimaryChange in Dizziness Handicap Inventory Score (Score After Retraining Minus Score at Baseline)

Change in Dizziness Handicap Inventory (DHI); scale from 0-100; higher scores indicate greater disability; 16-34 Points (mild handicap), 36-52 Points (moderate handicap), 54+ Points (severe handicap)

Time frame:
Through study completion, 12 rehabilitation sessions, an average of 7 weeks
Reported as:
Median · score on a scale
Change in Dizziness Handicap Inventory Score (Score After Retraining Minus Score at Baseline)
score on a scaleVestibular Rehabilitation With Dynamic Posturography
Change in Dizziness Handicap Inventory Score (Score After Retraining Minus Score at Baseline)-16 (-20 to 2)
PrimaryChange in Activities-specific Balance Confidence Scale Score (Score After Retraining Minus Score at Baseline)

Change in Activities-specific Balance Confidence (ABC) score; (Scores from 0-100; higher scores indicate greater confidence in performing activities of daily living)

Time frame:
Through study completion, 12 rehabilitation sessions, an average of 7 weeks
Reported as:
Median · score on a scale
Change in Activities-specific Balance Confidence Scale Score (Score After Retraining Minus Score at Baseline)
score on a scaleVestibular Rehabilitation With Dynamic Posturography
Change in Activities-specific Balance Confidence Scale Score (Score After Retraining Minus Score at Baseline)11.87 (0 to 17.30)
PrimaryChange in Fall Efficacy Scale-International (FES-I) (Score After Retraining Minus Score at Baseline)

Change in Fall Efficacy Scale-International (FES-I); possible scores 16-64, higher score indicates greater perceived fall risk

Time frame:
Through study completion, 12 rehabilitation sessions, an average of 7 weeks
Reported as:
Median · score on a scale
Change in Fall Efficacy Scale-International (FES-I) (Score After Retraining Minus Score at Baseline)
score on a scaleVestibular Rehabilitation With Dynamic Posturography
Change in Fall Efficacy Scale-International (FES-I) (Score After Retraining Minus Score at Baseline)-9 (-14 to 1)
PrimaryChange in Limits of Stability Area (Area After Retraining Minus Area at Baseline)

Change in endpoint excursion and maximum excursion functional stability region area, calculated from Limits of Stability (LOS) score Higher score indicates an ability to volitionally lean to larger angles. 100% of theoretical maximum in all directions would give an area of 28284. LOS excursion scores were calculated by the instrument software, from which we calculated the area of the endpoint excursion functional stability region (the sum of areas between adjacent Endpoint Excursion limits) and the area of the maximum excursion functional stability region (the sum of areas between adjacent Maximum Excursion limits) using published methods (Alvarez-Otero R, Perez-Fernandez N. The limits of stability in patients with unilateral vestibulopathy. Acta Oto-laryngol. 2017;137(10):1-6. doi:10.1080/00016489.2017.1339326)

Time frame:
Through study completion, 12 rehabilitation sessions, an average of 7 weeks
Reported as:
Median · units on a scale
Change in Limits of Stability Area (Area After Retraining Minus Area at Baseline)
units on a scaleVestibular Rehabilitation With Dynamic Posturography
Endpoint excursion functional stability region6226 (24 to 14547)
Maximum excursion functional stability region9802 (2248 to 21168)
SecondaryChange in Sensory Organization Test Scores for Conditions 1 to 6 (Scores After Retraining Minus Scores at Baseline)

Change in mean Sensory Organization Test Scores for conditions 1 through 6; (Scores from 0-100; higher scores indicate better function) The 6 conditions are: 1. Eyes open on firm surface 2. Eyes closed on firm surface 3. Eyes open with sway referenced visual 4. Eyes open on sway referenced support surface 5. Eyes close on sway referenced support surfrace 6. Eyes open on sway referenced support surface and visual

Time frame:
Through study completion, 12 rehabilitation sessions, an average of 7 weeks
Reported as:
Median · score on a scale
Change in Sensory Organization Test Scores for Conditions 1 to 6 (Scores After Retraining Minus Scores at Baseline)
score on a scaleVestibular Rehabilitation With Dynamic Posturography
SOT condition 10.6 (-1.5 to 4.3)
SOT condition 2-1.8 (-4.2 to 2.0)
SOT condition 3-1.6 (-3.2 to 2.6)
SOT condition 413.9 (3.0 to 27.8)
SOT condition 511.1 (1.6 to 23.4)
SOT condition 613.1 (2.9 to 34.4)
SecondaryChange in Sensory Organization Test Vestibular Contribution (Ratio After Retraining Minus Ratio at Baseline)

Change in mean value of Sensory Organization Test condition 5/mean value of SOT conditions 1; measured as a ratio, higher scores indicate a greater vestibular contribution to balance deficit

Time frame:
Through study completion, 12 rehabilitation sessions, an average of 7 weeks
Reported as:
Median · ratio of scores on a scale
Change in Sensory Organization Test Vestibular Contribution (Ratio After Retraining Minus Ratio at Baseline)
ratio of scores on a scaleVestibular Rehabilitation With Dynamic Posturography
Change in Sensory Organization Test Vestibular Contribution (Ratio After Retraining Minus Ratio at Baseline)0.10 (-0.06 to 0.25)
SecondaryChange in Limits of Stability Directional Control Component (Score After Retraining Minus Score at Baseline)

Limits of Stability test mean value of directional control of limits of stability; (Scores from 0-100; higher scores indicate better function)

Time frame:
Through study completion, 12 rehabilitation sessions, an average of 7 weeks
Reported as:
Median · Directional control %
Change in Limits of Stability Directional Control Component (Score After Retraining Minus Score at Baseline)
Directional control %Vestibular Rehabilitation With Dynamic Posturography
Change in Limits of Stability Directional Control Component (Score After Retraining Minus Score at Baseline)41.1 (5.9 to 79)
SecondaryChange in Endpoint and Maximum Excursion Values From Limits of Stability Test (Score After Retraining Minus Score at Baseline)

Limits of Stability test mean endpoint excursion value and maximum excursion point; (Scores from 0-100; higher scores indicate better function)

Time frame:
Through study completion, 12 rehabilitation sessions, an average of 7 weeks
Reported as:
Median · excursion as % of limit of stability
Change in Endpoint and Maximum Excursion Values From Limits of Stability Test (Score After Retraining Minus Score at Baseline)
excursion as % of limit of stabilityVestibular Rehabilitation With Dynamic Posturography
Endpoint excursion36 (2 to 51)
Maximum excursion47 (5.9 to 79)
Other pre-specifiedAdherence to Rehabilitation Protocol

Percentage of subjects that complete 12 sessions

Time frame:
Through study completion, maximum of 12 weeks
Reported as:
Count of participants · Participants
Adherence to Rehabilitation Protocol
ParticipantsVestibular Rehabilitation With Dynamic Posturography
Adherence to Rehabilitation Protocol13
Other pre-specifiedMissed Sessions

Mean number of missed and rescheduled rehabilitation sessions

Time frame:
Through study completion, maximum of 12 weeks
Reported as:
Mean · number is missed sessions / participant
Missed Sessions
number is missed sessions / participantVestibular Rehabilitation With Dynamic Posturography
Missed Sessions0 (0 to 0)

Adverse events

Collected over Duration of the treatment period until the post-treatment follow up (approximately 7 weeks). Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Vestibular Rehabilitation With Dynamic Posturography0/13 (0%)0/13 (0%)0/13 (0%)

Baseline characteristics

Age, Continuous
Age, Continuous(years)Vestibular Rehabilitation With Dynamic Posturography
Median51 (18 to 67)
Sex: Female, Male
Sex: Female, Male(Participants)Vestibular Rehabilitation With Dynamic Posturography
Female5
Male8
Race and Ethnicity Not Collected
Race and Ethnicity Not Collected(Participants)Vestibular Rehabilitation With Dynamic Posturography
08

Study locations

1 site
  • Dr. EA David MD FRCSC
    North Vancouver, British Columbia V7M 2H5, Canada
09

References and documents

Publications

  • David EA, Shahnaz N. Patient-Reported Disability After Computerized Posturographic Vestibular Retraining for Stable Unilateral Vestibular Deficit. JAMA Otolaryngol Head Neck Surg. 2022 May 1;148(5):426-433. doi: 10.1001/jamaoto.2022.0167. PubMed 35357406 ↗

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: No — No individual participant data will be shared.

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from May 2021 to primary completion in Oct 2021, 5 months.

Results were first posted in Dec 2022, 1 year 1 month after primary completion.

Of 82 non-industry interventional studies with no phase under Dizziness, half reached primary completion within 22 months of starting (the median), counting those still running; a quarter within 8 and three quarters within 42. This study's 5 months is below that.

Counting every sponsor, half of 90 studies reached it within 20 months; a quarter within 8 and three quarters within 42.

How these figures are worked out, and which studies are left out of them.

Registered
Apr 27, 2021
First posted
May 6, 2021
StartActual
May 10, 2021
Primary completionActual
Oct 31, 2021
CompletionActual
Oct 31, 2021
Results first posted
Dec 20, 2022
Last update
Dec 20, 2022
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Dec 20, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT04875013
Lead sponsor
Eytan A. David
Responsible party
Eytan A. David (MD, FRCSC, Clinical Instructor, Dept. of Surgery, University of British Columbia) — Sponsor-investigator
First posted
May 6, 2021
Start date
May 10, 2021
Primary completion
Oct 31, 2021
Completion
Oct 31, 2021
Results posted
Dec 20, 2022
Last update
Dec 20, 2022

Study contacts

Eytan David, MD
principal investigator · University of British Columbia

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Nov 2022. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion