for people ages 18 years and up (full criteria)
at La Jolla, California and other locations
study started
estimated completion
Principal Investigator
by Irene Litvan, MD
Headshot of Irene Litvan
Irene Litvan



To assess the feasibility, impact, and participant satisfaction of offering Clinical Laboratory Improvement Amendments (CLIA) certified genetic testing as part of clinical care for People with Parkinson's disease (PWP).

Official Title

Parkinson's Foundation: PD Generation: Mapping the Future of Parkinson's Disease


The purpose of this study is to evaluate how offering Clinical Laboratory Improvement Amendments (CLIA) certified genetic testing for Parkinson's Disease (PD) genes to people with Parkinson's Disease impacts clinical care and potential enrollment in clinical trials. This multi-center study will assess the impact and satisfaction of the mode of genetic counseling by comparing counseling conducted by a clinician versus centralized genetic counseling conducted through Indiana University. The study will also assess knowledge gained by administering a knowledge survey pre- and post-genetic testing. All genetic test results will be returned to participants through a genetic counseling visit.


Parkinson's Disease and Parkinsonism, Parkinson's, Genetics, PD Genetics, Parkinson Disease, Parkinsonian Disorders, Lab Assay for seven genetic variants for Parkinson's Disease, Site-Based Genetic Counseling, Centralized Genetic Counseling


You can join if…

Open to people ages 18 years and up

  1. Meet Movement Disorder Society (MDS) Clinical Diagnostic Criteria for Parkinson's

    Disease: probable diagnosis.

  2. Willingness to undergo genetic testing, and choose to be informed of genetic testing results for Glucosylceramidase Beta (GBA), LRRK2 and 5 additional PD related genes (SNCA, VPS35, PRKN, PINK-1, PARK7).
  3. Capacity to give full informed consent in writing, and have read and signed the informed consent forms (ICFs) based on clinician's determination.
  4. Able to perform study activities (including completion of either online, in-person or paper surveys).
  5. Individuals must speak and understand the language of the informed consent.

You CAN'T join if...

  1. Diagnosis of an atypical parkinsonian disorder (i.e., multiple system atrophy, progressive supranuclear palsy, dementia with Lewy bodies, corticobasal syndrome), including that due to medications, metabolic disorders, encephalitis, cerebrovascular disease, or normal pressure hydrocephalus.
  2. Individuals who have received a blood transfusion within the past 3 months.
  3. Individuals who have active hematologic malignancies such as lymphoma or leukemia.
  4. Individuals who have had a bone marrow transplant within the past 5 years.


  • University of California San Diego (UCSD) accepting new patients
    La Jolla California 92093 United States
  • Barrow Neurological Institute accepting new patients
    Phoenix Arizona 85013 United States

Lead Scientist at UCSD

  • Irene Litvan, MD
    Dr. Irene Litvan is the Tasch Endowed Professor of Neurology and Director of the Parkinson and Other Movement Disorder Center at the University of California, San Diego (UCSD).


accepting new patients
Start Date
Completion Date
Parkinson's Foundation
For more information and to enroll, please visit the website.
Study Type
Expecting 15000 study participants
Last Updated