Effects of Vitamin D in Parkinson's Disease (PD)
The Effects of Vitamin D on Balance in Persons With PD
1 other identifier
interventional
101
1 country
1
Brief Summary
A trial to measure the effects of vitamin D (versus a placebo) on balance, gait, falls, strength, and cognition in persons with Parkinson's disease.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_2 parkinson-disease
Started May 2011
Longer than P75 for phase_2 parkinson-disease
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
April 23, 2010
CompletedFirst Posted
Study publicly available on registry
May 7, 2010
CompletedStudy Start
First participant enrolled
May 1, 2011
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 1, 2015
CompletedStudy Completion
Last participant's last visit for all outcomes
January 1, 2015
CompletedResults Posted
Study results publicly available
March 7, 2016
CompletedMarch 7, 2016
February 1, 2016
3.7 years
April 23, 2010
November 17, 2015
February 8, 2016
Conditions
Keywords
Outcome Measures
Primary Outcomes (5)
Change in Static Balance as Recorded Using Dynamic Posturography With the Sensory Organization Test (SOT 1-3)
Sensory organization test (SOT) is a form of posturography. which is designed to assess quantitatively an individual's ability to use visual, proprioceptive and vestibular cues to maintain postural stability in stance. The SOT measures sway during 6 scenarios. In scenarios 1-3 the base is stable and eyes are open, then closed, and then the visual surround moves. SOT 1-3 is an average measurement of equilibrium - the average center of gravity sway for each condition. It generates a score of 0 (fall) up to 100 for each scenario and an overall composite score. Change score is measurement at 16 weeks minus measurement at baseline.
Baseline, 16 weeks
Change in Ambulatory Balance Measured by Instrumented Timed up and go (iTUG) Turn Duration
This is a test that measures ambulatory balance and mobility. The instrumented timed up and go (iTUG) is an average time (seconds) of three trials that involve the participant arising from a chair, walking 25 feet turning around, walking back to the chair, and sitting down. The turn duration is the average time to turn at the end of the 25 foot walk. Longer duration of time (seconds) indicates more rigidity, a proxy measure for "ON" time in Parkinson's disease. Change score is measurement at 16 weeks minus measurement at baseline.
Baseline and 16 weeks
Change in Strength as Recorded by Measuring Knee Flexion Using Biodex (Total Work)
Defined as the total muscular force output for the repetition with the greatest amount of work. The equation for work is: W = F x D. Change score is measurement at 16 weeks minus measurement at baseline.
Baseline, 16 weeks
Change in Dynamic Balance as Recorded Using Dynamic Posturography With the Sensory Organization Test (SOT 4-6)
Sensory organization test (SOT) is a form of posturography. which is designed to assess quantitatively an individual's ability to use visual, proprioceptive and vestibular cues to maintain postural stability in stance. The SOT measures sway during 6 scenarios. In 4-6 the base moves and the subject has eyes open, then closed, then the visual surround moves. SOT 4-6 is an average measurement of equilibrium - the average center of gravity sway for each condition. It generates a score of 0 (fall) up to 100 for each scenario and an overall composite score. Change score is measurement at 16 weeks minus measurement at baseline.
Baseline, 16 weeks
Change in Strength as Recorded by Measuring Knee Extension Using Biodex (Total Work)
Defined as the total muscular force output for the repetition with the greatest amount of work. The equation for work is: W = F x D. Change score is measurement at 16 weeks minus measurement at baseline.
Baseline, 16 weeks
Secondary Outcomes (3)
Change in Cognition (Trail Making Test B-A)
Baseline, 16 weeks
Change in Quality of Life as Recorded Using Quality of Life Scales (PDQ39)
Baseline, 16 weeks
Change in Parkinsonism as Measured by the UPDRS
Baseline, 16 weeks
Study Arms (2)
Arm 1
ACTIVE COMPARATORWill be on high dose vitamin D3 (10,000 IU daily) and 1000 mg of calcium
Arm 2
PLACEBO COMPARATORWill be on placebo and 1000mg of calcium.
Interventions
A placebo pill with similar appearance to the vitamin D3 will be given to those in the placebo arm
Eligibility Criteria
You may qualify if:
- Parkinson's disease;
- ability to ambulate 50 feet;
- ability to cooperate with balance testing;
- vitamin D level less than 40ng/ml;
- balance problems;
- ability to walk 50 feet without the help of another person
You may not qualify if:
- MMSE \< 25;
- another neurological or orthopedic deficit that in the examiner's opinion would affect testing;
- history of renal stones or hypercalcemia;
- unwillingness to not be on other vitamin D supplementation during the study
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
VA Portland Health Care System, Portland, OR
Portland, Oregon, 97239, United States
Related Publications (1)
Hiller AL, Murchison CF, Lobb BM, O'Connor S, O'Connor M, Quinn JF. A randomized, controlled pilot study of the effects of vitamin D supplementation on balance in Parkinson's disease: Does age matter? PLoS One. 2018 Sep 26;13(9):e0203637. doi: 10.1371/journal.pone.0203637. eCollection 2018.
PMID: 30256811DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- Amie Hiller, MD
- Organization
- VA Portland Health Care System
Study Officials
- PRINCIPAL INVESTIGATOR
Amie Hiller, MD BS
VA Portland Health Care System, Portland, OR
Publication Agreements
- PI is Sponsor Employee
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- FED
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
April 23, 2010
First Posted
May 7, 2010
Study Start
May 1, 2011
Primary Completion
January 1, 2015
Study Completion
January 1, 2015
Last Updated
March 7, 2016
Results First Posted
March 7, 2016
Record last verified: 2016-02