Study Stopped
Placebo effect
Trental for the Treatment of Vertigo/Dizziness/Imbalance
A Double-Blind, Placebo-Controlled, Randomized Trial of Pentoxifylline for Imbalance Secondary to Insufficient Microvascular Perfusion
1 other identifier
interventional
26
1 country
1
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
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable
Started Jan 2015
Longer than P75 for not_applicable
1 active site
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
CompletedFirst Submitted
Initial submission to the registry
October 27, 2015
CompletedFirst Posted
Study publicly available on registry
October 30, 2015
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 31, 2020
CompletedStudy Completion
Last participant's last visit for all outcomes
April 12, 2021
CompletedResults Posted
Study results publicly available
October 15, 2024
CompletedOctober 15, 2024
October 1, 2024
6 years
October 27, 2015
June 6, 2023
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
EXPERIMENTALPatients will take Trental (Pentoxifylline) 3 times per day for 12 weeks
Placebo
PLACEBO COMPARATORPatients will take placebo 3 times per day for 12 weeks
Interventions
Patients will take Trental (Pentoxifylline) 3 times per day for 12 weeks
Eligibility Criteria
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
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Limitations and Caveats
Early termination due to placebo effect.
Results Point of Contact
- Title
- Assistant Director of Research
- Organization
- University of Missouri
Study Officials
- PRINCIPAL INVESTIGATOR
Arnaldo E Rivera, M.D.
University of Missouri - Department of Otolaryngology - Head and Neck Surgery
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