NCT02592863

Brief Summary

Imbalance, dizziness and vertigo as a result of problems in the inner ear (vestibular dysfunction) are becoming increasingly more prevalent in Americans 40 years of age and older. The symptoms have a severe impact on affected individuals with detrimental effects on work, travel, social and family life. These patients see doctors often with no relief in their symptoms. The most promising help for these patients is to use medication that will increase blood flow to the inner ear. Pentoxifylline (Trental) has been shown to increase microvascular blood flow.

Trial Health

57
Monitor

Trial Health Score

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

Enrollment
26

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Jan 2015

Longer than P75 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

January 1, 2015

Completed
10 months until next milestone

First Submitted

Initial submission to the registry

October 27, 2015

Completed
3 days until next milestone

First Posted

Study publicly available on registry

October 30, 2015

Completed
5.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2020

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

April 12, 2021

Completed
3.5 years until next milestone

Results Posted

Study results publicly available

October 15, 2024

Completed
Last Updated

October 15, 2024

Status Verified

October 1, 2024

Enrollment Period

6 years

First QC Date

October 27, 2015

Results QC Date

June 6, 2023

Last Update Submit

October 10, 2024

Conditions

Outcome Measures

Primary Outcomes (3)

  • Effect of Trental Treatment Using the Dizziness Handicap Inventory, Vestibular Activities and Participation, and European Evaluation of Vertigo Scale

    The Dizziness Handicap Inventory (DHI) is 25 question self report questionnaire that measures how dizziness affects a person's daily life. The questions are grouped into three domains: physical (P), emotional (E), and functional (F). Each question has three possible answers: "Always", "Sometimes", or "No". The answers are worth points, with "Always" being worth 4 points, "Sometimes" worth 2 points, and "No" worth 0 points. After answering all the questions, the total score is calculated, ranging from 0 to 100 points. A higher score indicates a more severe handicap, with 0 points indicating no effect and 100 points indicating maximum effect.

    12 weeks

  • Effect of Trental Treatment Using the European Evaluation of Vertigo Scale

    The European Evaluation of Vertigo scale (EEV) is a physician-administered questionnaire that only assesses symptoms of the vestibular syndrome: illusion of movement, duration of illusion, motion intolerance, neurovegetative signs, and instability. The symptoms are ranked on a scale of 0 (no problem) to 4 (severe problem) and each area of assessment is stand alone (meaning the scores from each area to do not combine to create one larger score)

    12 Weeks

  • Effect of Trental Treatment Using the Vestibular Activities and Participation Survey

    Vestibular Activities and Participation (VAP) is 34-item self-report tool that measures the extent of activity limitations and participation restrictions caused by vestibular disorders. The VAP can be used for assessment, intervention planning, outcome evaluation, and to reflect a patient's status. Answers are ranked on a likert scale where 0 is no problem and 4 is unable to do. Scores are averaged and the higher the score the worse the problem, such that 0 is no problem and 54 or great is a severe problem.

    12 Weeks

Study Arms (2)

Pentoxifylline

EXPERIMENTAL

Patients will take Trental (Pentoxifylline) 3 times per day for 12 weeks

Drug: Pentoxifylline

Placebo

PLACEBO COMPARATOR

Patients will take placebo 3 times per day for 12 weeks

Drug: Placebo

Interventions

Patients will take Trental (Pentoxifylline) 3 times per day for 12 weeks

Also known as: Trental
Pentoxifylline

Patients will take placebo 3 times per day for 12 weeks

Placebo

Eligibility Criteria

Age40 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Adults 40 years and older
  • English as primary language
  • Diagnosis of multisensory losses, presbystasis, bilateral vestibulopathy, central vascular insufficiency, small vessel circulatory disease, generalized imbalance, and idiopathic peripheral vertigo scoring at least 16 on the Dizziness Handicap Inventory
  • Willingness to complete surveys and take medication as prescribed

You may not qualify if:

  • Diagnosis of the following: benign paroxysmal positional vertigo, Meniere's disease, vestibular migraine with headache, intracranial mass, perilymphatic fistula, or multiple sclerosis
  • history of cholesteatoma
  • Prior ear surgery other than myringotomy and tube placement
  • Prior radiation to head or neck
  • previous use of vestibulotoxic medications where the enrolling provider determines the drug exposure to be the cause of imbalance
  • Use of blood thinning medications
  • intolerance/allergy to pentoxifylline or methylxanthines, as well as recent cerebral or retinal hemorrhage (past 3 months)
  • Pregnant or lactating females.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Missouri

Columbia, Missouri, 65212, United States

Location

MeSH Terms

Conditions

DizzinessVertigo

Interventions

Pentoxifylline

Condition Hierarchy (Ancestors)

Sensation DisordersNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and SymptomsVestibular DiseasesLabyrinth DiseasesEar DiseasesOtorhinolaryngologic DiseasesNervous System Diseases

Intervention Hierarchy (Ancestors)

TheobromineXanthinesPurinonesPurinesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingHeterocyclic Compounds

Limitations and Caveats

Early termination due to placebo effect.

Results Point of Contact

Title
Assistant Director of Research
Organization
University of Missouri

Study Officials

  • Arnaldo E Rivera, M.D.

    University of Missouri - Department of Otolaryngology - Head and Neck Surgery

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

October 27, 2015

First Posted

October 30, 2015

Study Start

January 1, 2015

Primary Completion

December 31, 2020

Study Completion

April 12, 2021

Last Updated

October 15, 2024

Results First Posted

October 15, 2024

Record last verified: 2024-10

Locations