Study Stopped
Funding Ended
Quantification of the Antidyskinetic Effect of Amantadine and Topiramate in Parkinson's Disease
1 other identifier
interventional
3
1 country
1
Brief Summary
Levodopa is the main drug treatment for Parkinson's disease. Levodopa can cause unwanted and uncontrolled movements called dyskinesias. A drug called amantadine can reduce these movements. To date, there are no objective measures of these movements. The purpose of this study is to measure the reduction of the movements by amantadine and/or topiramate using an objective measure.
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 Sep 2009
Shorter than P25 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
November 19, 2008
CompletedFirst Posted
Study publicly available on registry
November 20, 2008
CompletedStudy Start
First participant enrolled
September 1, 2009
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 1, 2010
CompletedStudy Completion
Last participant's last visit for all outcomes
June 1, 2010
CompletedResults Posted
Study results publicly available
May 11, 2017
CompletedFebruary 1, 2018
January 1, 2018
9 months
November 19, 2008
September 29, 2016
January 8, 2018
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Forceplate AUC
Area under the curve for the root mean squared velocity in the anterior-posterior direction as measured by a forceplate.
Every 1/2 hour for 8 hour levodopa cycle
Secondary Outcomes (1)
Modified Abnormal Involuntary Movement Scale Area Under the Curve
Measured every 1/2 hour for a levodopa dose cycle (starting 1 hour prior to infusion and ending 4 hours post 2-hour infusion)
Study Arms (3)
Amantadine
EXPERIMENTALAmantadine plus Topiramate
EXPERIMENTALSugar Pill
PLACEBO COMPARATORInterventions
Amantadine, 300 mg, capsule, three times a day, two weeks
Topiramate, 25 mg, capsule, two times a day, 1 week Sugar Pill, capsule, one time a day, 1 week Topiramate, 50 mg, capsule, three times a day, 1 week
Eligibility Criteria
You may qualify if:
- Parkinson's Disease
- At least 21 years of age
- Must be taking Oral levodopa
- Must have dyskinesias by history or previous clinical observation
You may not qualify if:
- Significant cognitive impairment as measured by the Montreal Cognitive Assessment (MOCA) score of \< 25
- Subjects with unstable medical or psychiatric conditions (including hallucinations)
- Use of dopamine receptor blocking medications (e.g., neuroleptics, certain antiemetics, tetrabenazine)
- History of unstable medical conditions (ie active cardiovascular disease, recent unwellness or surgery etc.)
- Use of anticoagulants
- Current substance abuse
- Previous adverse event on amantadine
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Oregon Health & Science University
Portland, Oregon, 97239, United States
Related Publications (5)
Snow BJ, Macdonald L, Mcauley D, Wallis W. The effect of amantadine on levodopa-induced dyskinesias in Parkinson's disease: a double-blind, placebo-controlled study. Clin Neuropharmacol. 2000 Mar-Apr;23(2):82-5. doi: 10.1097/00002826-200003000-00004.
PMID: 10803797BACKGROUNDVerhagen Metman L, Del Dotto P, van den Munckhof P, Fang J, Mouradian MM, Chase TN. Amantadine as treatment for dyskinesias and motor fluctuations in Parkinson's disease. Neurology. 1998 May;50(5):1323-6. doi: 10.1212/wnl.50.5.1323.
PMID: 9595981BACKGROUNDDel Dotto P, Pavese N, Gambaccini G, Bernardini S, Metman LV, Chase TN, Bonuccelli U. Intravenous amantadine improves levadopa-induced dyskinesias: an acute double-blind placebo-controlled study. Mov Disord. 2001 May;16(3):515-20. doi: 10.1002/mds.1112.
PMID: 11391748BACKGROUNDHagell P, Widner H. Clinical rating of dyskinesias in Parkinson's disease: use and reliability of a new rating scale. Mov Disord. 1999 May;14(3):448-55. doi: 10.1002/1531-8257(199905)14:33.0.co;2-0.
PMID: 10348468BACKGROUNDda Silva-Junior FP, Braga-Neto P, Sueli Monte F, de Bruin VM. Amantadine reduces the duration of levodopa-induced dyskinesia: a randomized, double-blind, placebo-controlled study. Parkinsonism Relat Disord. 2005 Nov;11(7):449-52. doi: 10.1016/j.parkreldis.2005.05.008. Epub 2005 Sep 9.
PMID: 16154788BACKGROUND
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- Kathyrn Chung MD
- Organization
- Oregon Health & Science Universtiy
Study Officials
- PRINCIPAL INVESTIGATOR
Kathryn Chung, MD
Oregon Health & Science University, Portland VA Medical Center
- PRINCIPAL INVESTIGATOR
John G Nutt, MD
Oregon Health & Science Unversity
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
- CROSSOVER
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Associate Professor
Study Record Dates
First Submitted
November 19, 2008
First Posted
November 20, 2008
Study Start
September 1, 2009
Primary Completion
June 1, 2010
Study Completion
June 1, 2010
Last Updated
February 1, 2018
Results First Posted
May 11, 2017
Record last verified: 2018-01
Data Sharing
- IPD Sharing
- Will not share