Parkinson's Clinical Trials in California

California runs more recruiting Parkinson's trials than any other U.S. state, spread across research hubs in the Bay Area, Los Angeles, San Diego, and the Central Valley.

Because the state is so large, where you live matters as much as the statewide total: the Bay Area and Greater Los Angeles each carry their own cluster of academic centers and biotech-sponsored studies, while San Diego anchors the south. The list below covers every recruiting trial with a site anywhere in California, grouped so you can find the centers nearest you. For a tighter, distance-sorted view, jump to the San Francisco, Los Angeles, or San Diego city pages.

Research sites across California

Who is running Parkinson's trials in California

How to find a Parkinson's trial in California

  1. Open the California trial list to see every recruiting study with a site in the state, grouped by location.
  2. Read each trial's family-friendly summary and five-word goal to understand what is being tested.
  3. Open the trial page for site contact details, eligibility criteria, and the phase.
  4. Sign up for the free Monday digest if you would like an email when new California trials open.

Frequently Asked Questions

How do I find a Parkinson's clinical trial near me?
Enter your city, zip code, or postcode and a search radius. Parkinson's Pathways finds every recruiting Parkinson's trial with a study site inside that radius, sorted by distance. Each result links to a family-friendly summary, a five-word goal, and the site contact details.
Are these Parkinson's clinical trials free to join?
You are never charged a fee to join a legitimate clinical trial, and the study treatment and study-specific tests are paid for by the trial sponsor. In the US, routine care you would receive anyway can still be billed to you or your insurance; trials in the UK and Canada usually run through public health systems. Travel, parking, and time are real costs, and some trials reimburse them while others do not. Ask the study coordinator to explain in writing what is and is not covered before you enroll.
How far should I be willing to travel for a Parkinson's trial?
Most participants travel between 25 and 50 miles for routine visits. For a high-priority disease-modifying trial, families sometimes travel further, especially because some early-phase trials only run at a handful of academic medical centers. Many sites help with travel costs when the distance is significant.
Who runs these clinical trials?
Parkinson's clinical trials are run by academic medical centers, university hospitals, pharmaceutical companies, biotech startups, and patient foundations like The Michael J. Fox Foundation. Every trial listed here is registered with the U.S. National Library of Medicine on ClinicalTrials.gov.
How often are the local trial listings updated?
Every day. The full list refreshes from ClinicalTrials.gov each morning, so a trial that started recruiting yesterday will appear today. Trials that stop recruiting are removed automatically.
Do I need a Parkinson's diagnosis to enroll in a local trial?
Most trials require a confirmed Parkinson's diagnosis from a neurologist, but some recruit healthy volunteers as a comparison group, and a few recruit people at risk for Parkinson's based on family history or early symptoms. Each trial's eligibility section spells out who can join.
What if there are no Parkinson's trials near my city right now?
Try increasing the search radius to 100 or 250 miles, or sign up for the free weekly digest. Spencer sends a Monday email summarizing every new recruiting Parkinson's trial, so you can catch one the day it opens near you.

Trials in other cities

Search by your own city or zip code

Or browse all 509 recruiting Parkinson's trials