Clinical Effects of Vitamin D Repletion in Patients With Parkinson's Disease

ClinicalTrials.gov ID: NCT00571285

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Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

Retrospective review of records in the Emory Movement Disorders clinic suggests vitamin D deficiency occurs in over 80% of patients with Parkinson's Disease (PD), much more frequently than in internal medicine clinics. Laboratory studies have suggested vitamin D could play a role in the development of PD. In addition, low vitamin D levels have been associated with slower walking speeds, worse memory and thinking, and depression.

Study identification

NCT ID: NCT00571285
Recruitment status: Terminated
Study type: Interventional
Phase: Phase 4
Lead sponsor: Emory University; Other
Enrollment: 31 participants

Conditions and interventions

Conditions

Parkinson's Disease

Interventions

Vitamin D3 Dietary Supplement
Vitamin D3 - high dose Dietary Supplement
Placebo Dietary Supplement

Dietary Supplement

Eligibility (public fields only)

Age range: 18 Years to 89 Years
Sex: All
Healthy volunteers: Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date: Jun 2007 (Type not available)
Primary completion: Jan 2011 (Actual)
Completion: Sep 2015 (Actual)
Last update posted: Jan 24, 2017

2007 – 2015

United States locations

U.S. sites: 1
U.S. states: 1
U.S. cities: 1

Facility	City	State	ZIP	Site status
Emory University	Atlanta	Georgia	30322	—

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows: Public field values for ClinicalTrials.gov record NCT00571285, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do: No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from: Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh: Last update posted Jan 24, 2017 · Synced Nov 13, 2026