Reducing Dyskinesia in Parkinson's Disease With Omega-3 Fatty Acids (RLID-PD)
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| First Received Date ICMJE | March 16, 2012 | ||||||||
| Last Updated Date | March 25, 2013 | ||||||||
| Start Date ICMJE | October 2012 | ||||||||
| Estimated Primary Completion Date | December 2014 (final data collection date for primary outcome measure) | ||||||||
| Current Primary Outcome Measures ICMJE |
Safety/Efficacy of DHA [ Time Frame: 1.5 years ] [ Designated as safety issue: Yes ] This study is seeking to determine the safety/efficacy of DHA in Parkinson's disease patients. The safety/efficacy of DHA will be determined using adverse event monitoring, periodic safety lab information, monthly telephone calls, therapeutic level monitoring, and assessment of dietary intakes. Adverse event monitoring will be accomplished with interviewing on the telephone and in person visits. Safety lab information and therapeutic level monitoring will be accomplished by analyzing blood levels for DHA. |
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| Original Primary Outcome Measures ICMJE | Same as current | ||||||||
| Change History | Complete list of historical versions of study NCT01563913 on ClinicalTrials.gov Archive Site | ||||||||
| Current Secondary Outcome Measures ICMJE |
Dyskinesia [ Time Frame: 1.5 years ] [ Designated as safety issue: No ] Dyskinesia are abnormal movements caused by levodopa. These abnormal movements will be measured with a forceplate (a device that is similar to a door mat). Dyskinesia will be examined at all inpatient visits and area under the curves will be compared with a clinical rating scale to measure the development of dyskinesia after starting levodopa therapy. |
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| Original Secondary Outcome Measures ICMJE |
Dyskinesia [ Time Frame: 1.5 years ] [ Designated as safety issue: No ] Dyskiensia are abnormal movements caused by levodopa. These abnormal movements will be measured with a forceplate (a device that is similiar to a door mat). Dyskinesia will be examined at all inpatient visits and area under the curves will be compared with a clinical rating scale to measure the development of dyskinesia after starting levodopa therapy. |
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| Current Other Outcome Measures ICMJE | Not Provided | ||||||||
| Original Other Outcome Measures ICMJE | Not Provided | ||||||||
| Descriptive Information | |||||||||
| Brief Title ICMJE | Reducing Dyskinesia in Parkinson's Disease With Omega-3 Fatty Acids | ||||||||
| Official Title ICMJE | Reducing Dyskinesia in Parkinson Disease With Omega-3 Fatty Acids | ||||||||
| Brief Summary | The purpose of this research study is to measure the safety (side effects) of an Omega 3 Fatty acid called docosahexanoic acid (DHA) and measure the dyskinesia (involuntary movements) in Parkinson 's disease (PD). |
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| Detailed Description | Levodopa induced dyskinesias (LID) are involuntary, abnormal movements that occur in most patients with Parkinson disease(PD) as a consequence of chronic use of the most effective symptomatic drug, levodopa (LD). LID can range from subtle and unobtrusive to marked and disabling. There are surprisingly few treatments for LID, including amantadine and deep brain stimulation. In many instances, amantadine is either poorly tolerated, or provides inadequate benefit, and only a small minority are appropriate candidates for surgery. Given the finding that docosahexanoic acid (the most abundant omega-3 fatty acid in the brain), delays the onset and reduces the severity of dyskinesia in two different animal models of LID, a trial of docosahexanoic acid (DHA) in PD subjects about to start LD as part of their drug regimen, to prevent or slow the progression of LID is warranted. Prior to embarking on a large trial, preliminary data about safety and tolerability of DHA in PD subjects is needed, and collection of this data is the primary outcome of this pilot project proposal. 40 subjects who have not yet used levodopa, but are about to begin it will be randomized to daily DHA or placebo. Safety laboratory testing, adverse event monitoring, DHA plasma and CSF levels as well as compliance/subject retention will be outcomes collected. In addition, preliminary data about modification of incidence rates will be collected and compared between the two treatment groups. This information will aid in calculating an appropriate sample size and treatment period for a larger definitive future study. Dyskinesia manifests overwhelmingly when plasma levodopa levels are high enough to cause anti-parkinsonian benefits, and lessens or stops when levodopa levels drop below a threshold. Thus, the subject's dyskinesia measurements must occur during a levodopa administration period. Dyskinesia measurement will occur during a two-hour levodopa cycle administered to subjects at weeks 0, 6, 24, 52, 76. It is expected that a good proportion of subjects will manifest dyskinesia within the two-year observation period, as previous studies using the most objective means to measure dyskinesia report incidence rates of 67% or greater within the first year of levodopa use. An instrument to measure dyskinesia developed by this center will be used as an additional outcome, and is expected to measure dyskinesia more accurately and with greater sensitivity than the gold standard methods of clinical rating scales. By conclusion of this pilot project, the safety and tolerability, subject retention and compliance, plasma/CSF levels of DHA administration will be determined. Trends in dyskinesia development may be measured. This will provide the needed background information to proceed with a future larger trial of DHA to prevent dyskinesia in PD. |
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| Study Type ICMJE | Interventional | ||||||||
| Study Phase | Phase 1 | ||||||||
| Study Design ICMJE | Allocation: Randomized Endpoint Classification: Safety/Efficacy Study Intervention Model: Parallel Assignment Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor) |
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| Condition ICMJE | Parkinson's Disease | ||||||||
| Intervention ICMJE |
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| Study Arm (s) |
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| Publications * |
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* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline. |
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| Recruitment Information | |||||||||
| Recruitment Status ICMJE | Recruiting | ||||||||
| Estimated Enrollment ICMJE | 40 | ||||||||
| Estimated Completion Date | October 2015 | ||||||||
| Estimated Primary Completion Date | December 2014 (final data collection date for primary outcome measure) | ||||||||
| Eligibility Criteria ICMJE | Inclusion Criteria:
Exclusion Criteria:
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| Gender | Both | ||||||||
| Ages | 21 Years and older | ||||||||
| Accepts Healthy Volunteers | No | ||||||||
| Contacts ICMJE |
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| Location Countries ICMJE | United States | ||||||||
| Administrative Information | |||||||||
| NCT Number ICMJE | NCT01563913 | ||||||||
| Other Study ID Numbers ICMJE | CLIN-006-11S, 2907, 8012 | ||||||||
| Has Data Monitoring Committee | Yes | ||||||||
| Responsible Party | Department of Veterans Affairs | ||||||||
| Study Sponsor ICMJE | Department of Veterans Affairs | ||||||||
| Collaborators ICMJE | Oregon Health and Science University | ||||||||
| Investigators ICMJE |
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| Information Provided By | Department of Veterans Affairs | ||||||||
| Verification Date | March 2013 | ||||||||
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ICMJE Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP |
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