UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000058682
Receipt number R000067100
Scientific Title Systematic Review of Treatments and Clinical Outcomes for Persistent Postural-Perceptual Dizziness (PPPD)
Date of disclosure of the study information 2025/08/05
Last modified on 2025/08/03 14:46:54

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Basic information

Public title

Systematic Review of Treatments and Clinical Outcomes for Persistent Postural-Perceptual Dizziness (PPPD)

Acronym

Systematic Review and Meta-analysis of Treatments and Clinical Outcomes for Persistent Postural-Perceptual Dizziness (PPPD)

Scientific Title

Systematic Review of Treatments and Clinical Outcomes for Persistent Postural-Perceptual Dizziness (PPPD)

Scientific Title:Acronym

Systematic Review of Treatments and Clinical Outcomes for Persistent Postural-Perceptual Dizziness (PPPD)

Region

Japan


Condition

Condition

Persistent Postural-Perceptual Dizziness (PPPD)

Classification by specialty

Oto-rhino-laryngology

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

The aim of this study is to systematically evaluate the effectiveness of various treatments for PPPD, including pharmacotherapy, cognitive behavioral therapy (CBT), and vestibular rehabilitation, with respect to symptom improvement, recurrence rate, and quality of life (QOL) outcomes.

Basic objectives2

Others

Basic objectives -Others

symptom improvement, recurrence rate, and quality of life (QOL) outcomes.

Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Change in symptom severity scores related to PPPD (pre- and post-treatment)
The primary outcome will be the effect size of treatment on symptom improvement, measured using validated dizziness-related scales such as the Dizziness Handicap Inventory (DHI), Visual Analog Scale (VAS), or other relevant instruments.

Key secondary outcomes



Base

Study type

Others,meta-analysis etc


Study design

Basic design


Randomization


Randomization unit


Blinding


Control


Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms


Purpose of intervention


Type of intervention


Interventions/Control_1


Interventions/Control_2


Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit


Not applicable

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

Studies involving adult patients diagnosed with PPPD
Clinical studies evaluating the efficacy of treatments for PPPD, including pharmacological therapy, cognitive behavioral therapy (CBT), or vestibular rehabilitation
Randomized controlled trials (RCTs), prospective or retrospective cohort studies, or case series
Studies reporting changes in symptom severity scores (e.g., DHI, VAS) as primary outcomes
Peer-reviewed articles published in English since 2000

Key exclusion criteria

Studies focusing on vestibular disorders other than PPPD (e.g., Meniere's disease, BPPV, vestibular neuritis)
Studies with unclear diagnostic criteria or mixed patient populations
Review articles, letters, single case reports (n<5), animal studies, or basic science research
Studies lacking sufficient detail on treatment or outcomes for quantitative data extraction
Duplicate publications or overlapping cohorts

Target sample size



Research contact person

Name of lead principal investigator

1st name Takeshi
Middle name
Last name Takahashi

Organization

Niigata University Graduate School of Medical and Dental Sciences

Division name

Department of Otolaryngology-Head and Neck Surgery

Zip code

951-8510

Address

757 Asahimachidori 1-chome, Chuo-ku, Niigata 951-8510, Japan

TEL

025-227-2307

Email

tt_niigata@yahoo.co.jp


Public contact

Name of contact person

1st name Takeshi
Middle name
Last name Takahashi

Organization

Faculty of Medical and Dental Sciences, Niigata University Graduate School of Medical and Dental Sci

Division name

Department of Otolaryngology-Head and Neck Surgery

Zip code

951-8510

Address

757 Asahimachidori 1-chome, Chuo-ku, Niigata 951-8510, Japan

TEL

025-227-2307

Homepage URL


Email

tt_niigata@yahoo.co.jp


Sponsor or person

Institute

Niigata University Graduate School of Medical and Dental Sciences

Institute

Department

Personal name



Funding Source

Organization

NA

Organization

Division

Category of Funding Organization

Self funding

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

NA

Address

NA

Tel

NA]

Email

NA


Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2025 Year 08 Month 05 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled


Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Preinitiation

Date of protocol fixation

2025 Year 08 Month 03 Day

Date of IRB


Anticipated trial start date

2025 Year 08 Month 03 Day

Last follow-up date

2025 Year 12 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

PPPD is a relatively newly defined chronic functional dizziness disorder, and evidence regarding its treatment remains limited. Although various treatment approaches have been reported, systematic comparisons of their effectiveness are lacking. This study aims to comprehensively review the existing literature and identify the most effective treatment strategies for PPPD.


Management information

Registered date

2025 Year 08 Month 03 Day

Last modified on

2025 Year 08 Month 03 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000067100