- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00853879
An Exploratory, Randomized, Blinded, Placebo-Controlled Trial of Folic Acid and L-methylfolate in Parkinson's Disease
May 13, 2015 updated by: Northwell Health
This study is being conducted to assess the impact of folate and L-methylfolate on the progression of Parkinson's.
The investigators are specifically looking for the effect of these nutritional supplements in Parkinson's patients who have an antibody that effects their body's utilization of folate.
An antibody is a protein produced by the body's immune system to recognize foreign substances.
Normally, people do not have an antibody that prevents folate from working properly in the brain but it appears that some people may have such an antibody.
Folate is an important vitamin that takes part in many critical cell functions so an antibody that prevented it from entering the brain properly could cause or worsen certain neurological disorders like Parkinson's.
The results of this preliminary study will help determine whether it is reasonable to proceed with further study of any of these supplements for the treatment of Parkinson's.
Patients interested in participating will have a blood test to see if they have folate antibodies.
Patients with the antibody will be eligible to further participate in the study.
The investigators will measure the effects of folate and L-methylfolate on Parkinson's disease by measuring the change in your Parkinson's disease symptoms over three months of treatment.
The investigators will also be looking at the blood of some individuals who do not have Parkinson's.
This is called a control group and will allow us to compare how common the folate antibody is in the general population compared with the Parkinson's population.
Study Overview
Status
Terminated
Conditions
Study Type
Interventional
Enrollment (Actual)
150
Phase
- Not Applicable
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
-
-
New York
-
Manhasset, New York, United States, 11030
- The Feinstein Institute For Medical Recearch
-
-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
30 years and older (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
PD subjects:
- Diagnosis of Parkinson's based upon the presence of 2 or more of the cardinal clinical features of the disease as determined by a movement disorders specialist.
- Age > 30.
- Able to provide informed consent.
- All anti-Parkinson's medications will be permitted but all evaluations will be done in the medication OFF state (at least 12 hours following the last dose of medication).
- Healthy Controls *Age > 30
Exclusion Criteria:
PD Subjects:
- Age < 30.
- Presence of concomitant active neurological disorders as deemed significant by the investigator.
- History of clinically significant diabetes, vascular disease, renal, thyroid or hepatic dysfunction or of Leber's optic neuropathy as determined by the investigator.
- History of significant medical illness as determined by the investigators.
- The following medications will be excluded: thiazide diuretics, azathioprine, phenytoin, phenobarbital, primidone, sulfa-containing medications, cimetidine, anti-tuberculosis medications, methotrexate, chemotherapeutic agents and oral contraceptives.
- Subjects taking vitamin supplementation in excess of one daily standard multivitamin.
- Pregnancy (excluded not for perceived risk but because most pregnant women are taking supplemental folate).
Healthy Controls:
- Age < 30
- Any known active neurological condition deemed significant by the investigator.
- History of significant, active renal or hepatic dysfunction as determined by the investigator.
- History of significant active medical illness as determined by the investigators.
- The following medications will be excluded: thiazide diuretics, azathioprine, phenytoin, phenobarbital, primidone, sulfa-containing medications, cimetidine, anti-tuberculosis medications, methotrexate, chemotherapeutic agents and oral contraceptives.
- Subjects taking vitamin supplementation in excess of one standard daily multivitamin.
- Pregnancy (most pregnant women are taking folate).
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: Arm 1. B6, B12, folate
Triple therapy with folate.
Intervention #1.
|
Intervention #1.
A combination of the following vitamin supplements: 2.5mg of folate, 25mg of vitamin B6 and 2mg of vitamin B12.
This combination will be described as "triple therapy with folate."
|
Active Comparator: Arm 2. B6, B12, L-methylfolate
Triple therapy with L-methylfolate.
Intervention #2
|
Intervention #2.
A combination of the following vitamin supplements: 2.8mg of L-methylfolate, 25 mg of vitamin B6 and 2mg of vitamin B12.
|
Placebo Comparator: Arm 3. B6, B12, Placebo
Triple therapy with placebo.
Intervention #3.
|
Intervention #3.
A combination of the following vitamin supplements: 25mg of vitamin B6 and 2mg of vitamin B12 without supplementary folate or L-methylfolate.
This combination will be described as "triple therapy with placebo"
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
This study is being conducted to assess the impact of folate and L-methylfolate on the progression of Parkinson's. The primary endpoint variable will be the change in UPDRS from baseline to 3 months ("change score").
Time Frame: 3 years
|
3 years
|
Secondary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Secondary endpoints will be Folate receptor autoantibody levels and plasma Hcy levels
Time Frame: 3 years
|
3 years
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Investigators
- Principal Investigator: Michael Pourfar, MD, Northwell Health
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start
December 1, 2006
Primary Completion (Actual)
June 1, 2010
Study Completion (Actual)
June 1, 2010
Study Registration Dates
First Submitted
February 26, 2009
First Submitted That Met QC Criteria
February 27, 2009
First Posted (Estimate)
March 2, 2009
Study Record Updates
Last Update Posted (Estimate)
May 15, 2015
Last Update Submitted That Met QC Criteria
May 13, 2015
Last Verified
May 1, 2015
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Brain Diseases
- Central Nervous System Diseases
- Nervous System Diseases
- Parkinsonian Disorders
- Basal Ganglia Diseases
- Movement Disorders
- Synucleinopathies
- Neurodegenerative Diseases
- Parkinson Disease
- Physiological Effects of Drugs
- Micronutrients
- Hematinics
- Vitamins
- Folic Acid
- Vitamin B 12
- Hydroxocobalamin
- Vitamin B Complex
- Vitamin B 6
- Pyridoxal
- Pyridoxine
Other Study ID Numbers
- GCRC 0143
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
product manufactured in and exported from the U.S.
No
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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