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Clinical Trial

T Cell-Mediated Autoimmune Responses in Parkinson’s Disease

IRB Protocol Number STU00209668


Douglas Merkitch


This study aims to further examine a type of T cell, an immune cell in the blood, found to appear in about half of people with Parkinson’s disease (PD) and only rarely in age-matched control volunteers. This type of T-cell may be a biomarker of PD. A biomarker is a substance or characteristic in our bodies that is associated with the presence of disease or that changes over time in a way that can be linked to the progression of disease. These biological measures will help develop treatments for Parkinson’s, particularly therapies that could slow or stop progression.

Who Can Participate

We have completed enrollment of our PD sample, but are still looking for healthy controls

Healthy controls who:

  1. Have not been diagnosed with PD or other neurological disorder
  2. Do not have a first degree relative (e.g., parent, sibling, child) diagnosed with PD
  3. Weigh 110 pounds or more
  4. Do not have a currently diagnosed autoimmune disease
  5. Have not taken immunosuppressing drugs within 30 days
  6. Do not have a history of severe orthostatic hypotension (dizziness upon standing)
  7. Do not currently use anticoagulants
  8. Do not have a history of cancer (except skin cancer)
  9. Do not have a history of heart or lung problems
  10. Do not have a history of bleeding condition or blood disease


Provided    $35

Age Range

Age Range 45 or older

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