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Note: This record shows only 22 elements of the WHO Trial Registration Data Set. To view changes that have been made to the source record, or for additional information about this trial, click on the URL below to go to the source record in the primary register.
Register: ClinicalTrials.gov
Last refreshed on: 12 December 2020
Main ID:  NCT01789047
Date of registration: 07/02/2013
Prospective Registration: Yes
Primary sponsor: Rush University Medical Center
Public title: Topiramate as an Adjunct to Amantadine in the Treatment of Dyskinesia in Parkinson's Disease TOP-DYSK
Scientific title: Topiramate as an Adjunct to Amantadine in the Treatment of Dyskinesia in Parkinson's Disease
Date of first enrolment: March 2013
Target sample size: 42
Recruitment status: Terminated
URL:  https://clinicaltrials.gov/show/NCT01789047
Study type:  Interventional
Study design:  Allocation: Randomized. Intervention model: Parallel Assignment. Primary purpose: Treatment. Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor).  
Phase:  Phase 2
Countries of recruitment
United States
Contacts
Name:     Christopher G Goetz, MD
Address: 
Telephone:
Email:
Affiliation:  Rush University Medical Center
Key inclusion & exclusion criteria

Inclusion Criteria:

1. Parkinson's disease patient, defined by United Kingdom (UK) Brain Bank criteria

2. Current age between 30-90

3. Clinically pertinent dyskinesias defined by Clinical Global Impression - Severity
(CGI-s) score (see attachment) > 3 (mild) established by clinician's total assessment
of patient including objective observation during the screening process. *

4. Stable doses of all antiparkinsonian medications for at least 4 weeks

5. Stable treatment with at least 200 mg amantadine for at least 4 weeks.

6. Presence of a caregiver willing to participate in the study

7. In the opinion of the enrolling investigator, the subject will be able to maintain
current dosing schedule of antiparkinsonian drugs for the duration of the trial.

8. Subjects must be free of dementia, depression and psychosis as determined by clinical
examination.

9. The subject must be willing to participate in all study related activities and visits.

Exclusion criteria:

1. Any subjects with clinical evidence suggestive of an atypical or secondary form of
Parkinson's Disease

2. Any subject who, in the opinion of the Principal Investigator, has a concomitant
medical illness which would preclude them from being treated with amantadine,

3. Any subject who, in the opinion of the Principal Investigator, will be unable to
maintain current stable dosing of their anti-parkinsonian medications for the duration
of the trial,

4. Any subject with evidence for dementia, depression, or psychosis, as determined by
clinical examination.

5. Any subject who has not signed informed consent, or unable or unwilling to participate
in all of the study related activities.



Age minimum: 30 Years
Age maximum: 90 Years
Gender: All
Health Condition(s) or Problem(s) studied
Drug Induced Dyskinesia
Idiopathic Parkinson's Disease
Intervention(s)
Drug: Placebo
Drug: Topiramate
Drug: Amantadine
Primary Outcome(s)
The Unified Dyskinesia Rating Scale (UDysRS) [Time Frame: Change from baseline to week 14 (end of study) on the Unified Dyskinesia Rating Scale]
Secondary Outcome(s)
Secondary ID(s)
TOP-DYSK
Source(s) of Monetary Support
Please refer to primary and secondary sponsors
Secondary Sponsor(s)
Michael J. Fox Foundation for Parkinson's Research
Ethics review
Results
Results available: Yes
Date Posted: 16/04/2019
Date Completed:
URL: https://clinicaltrials.gov/ct2/show/results/NCT01789047
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