Epley vs. Semont-plus maneuver for posterior canal BPPV
Official title: Efficacy of the Epley Versus Semont-plus Maneuver in Patients With Posterior Semicircular Canal Benign Paroxysmal Positional Vertigo: A Randomized Controlled Trial Using Quantitative Video-Nystagmography Measurement
Run by Military Hospital 175 · NCT07787559 · Data updated 2026-11-12
This trial tests whether the Epley maneuver or the Semont-plus maneuver more effectively treat posterior canal BPPV in adults.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 160 (estimated) |
| Sponsor | Military Hospital 175 Academic / other |
| Locations | 1 site (Ho Chi Minh City) |
| Status | Recruiting |
| Started | September 1, 2026 |
| Main results expected | October 30, 2027 |
| Study ends | November 30, 2027 |
| Registry record updated | November 10, 2026 |
| Trial ID | NCT07787559 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults 18 years or older with unilateral, single-canal posterior canal BPPV (canalolithiasis) diagnosed by Barany criteria.
✕Probably not a fit
Patients with multi-canal involvement, unsafe cervical spine conditions, or inability to perform the maneuvers may not benefit.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This interventional study compares two established head-movement techniques used to treat posterior canal BPPV caused by canalolithiasis. Participants will receive either the Epley maneuver or the Semont-plus maneuver and will be assessed before treatment, 30 minutes after, and 3 days after to see which method better reduces involuntary eye movements and dizziness. Additional outcomes include time to dizziness resolution, rate of free-of-dizziness status, the effect of home repetition, and treatment-related side effects. Eligible participants are adults with unilateral, single-canal posterior canal BPPV diagnosed by Barany criteria. Exclusion criteria include multi-canal involvement, unsafe cervical conditions, inability to cooperate, or conditions preventing reliable videonystagmography.
Why it matters
Potential benefit: If successful, one maneuver may become the preferred treatment, potentially providing faster relief from dizziness.
How similar studies have gone: Previous work has demonstrated efficacy of positional maneuvers for BPPV, but direct head-to-head comparisons like this are less common.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Age 18 years or older * Posterior semicircular canal benign paroxysmal positional vertigo of the canalolithiasis type, diagnosed according to the Barany Society 2015 diagnostic criteria * Unilateral involvement of a single semicircular canal Exclusion Criteria: * Involvement of more than one semicircular canal * Any condition making the repositioning maneuver unsafe, including severe cervical spine disease with restricted range of motion or instability, previous cervical spine fracture, severe osteoporosis, unstable cardiovascular disease, or respiratory failure * Unable to cooperate with the maneuver * Any ocular or neurologic condition preventing technically adequate videonystagmography recording, such as inability to keep the eyes open, severe ptosis, or interfering spontaneous nystagmus from another cause
Where it's running
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Military Hospital 175
Ho Chi Minh City, Vietnam Recruiting
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Vitamin D Deficiency and BPPV: Is Low Vitamin D Linked to Vertigo Recurrence?
This observational study tests whether adults with BPPV have different vitamin D levels compared with adults without dizziness at a hospital in Sohag, Egypt.
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Epley maneuver for treating dizziness in the emergency department
This trial tests whether doing the Epley maneuver, versus a sham maneuver, helps adults with posterior canal BPPV who come to the emergency department feel less dizzy.
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Investigating BPPV in Elderly Patients in Primary Care
This study is testing if simple balance tests for dizziness in older adults can help find hidden cases of BPPV and improve their quality of life while reducing their fall risk.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.