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Clinical research

Clinical trial sites in the United States

Clinical trial sites: one pin for each physical site that hosts trials, placed from the address on the trial registration.

  • Trial site
  • Group of pins (click to zoom)

Showing the 40,000 busiest of 307,932 located sites. The map holds only the first 40,000, so narrow the filters to see the rest.

Each pin is one trial site, placed on the map from the address on the trial registration, so it shows part of where trials are run, not all of it. A site with no located address has no pin. A site with a public page on Pharma Observatory links to it; other sites show name, place and trial count only.

Looking for contract research suppliers and CROs? Visit Contract Research Map

Looking to track new and ongoing clinical trials? Visit Trial Insights

Filters: Country: United States Clear all

Trial sites by region

Select a bar to filter by region.

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Trial sites by region
CategoryTrial sites
North America307,932

Top countries

Country of the site's address. Select a bar to filter.

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Bar colour shows the country's region, as in the chart by region.

Trial sites by country
CategoryTrial sites
United States307,932
France73,380
Germany73,266
Italy48,719
China46,305
Japan38,861
Spain36,598
United Kingdom32,508

Trial sites

307,932 sites. Sites with a public page link to it on Pharma Observatory.

  • Pearl Investigative Site Medford, Oregon, United States 9 trials
  • Pearl Investigative Site Winter Park, Florida, United States 9 trials
  • Pedia Research Owensboro, Kentucky, United States 9 trials
  • Pediatric Associates Houston, Texas, United States Ongoing trial 9 trials
  • Pediatric Ophthalmology of Erie Erie, Pennsylvania, United States Ongoing trial 9 trials
  • Penn Medicine - Perelman Center for Advanced Medicine Philadelphia, Pennsylvania, United States Ongoing trial 9 trials
  • Penn Medicine Lancaster General Health Lancaster, Pennsylvania, United States Ongoing trial 9 trials
  • Penn Memory Center Philadelphia, Pennsylvania, United States 9 trials
  • Penn State Hershey Hershey, Pennsylvania, United States Ongoing trial 9 trials
  • Penn State MS Hershey Med Ctr Hershey, Pennsylvania, United States Ongoing trial 9 trials
  • Penn State Milton S Hershey Medical Ctr Hershey, Pennsylvania, United States Ongoing trial 9 trials
  • Penrose Hospital Colorado Springs, Colorado, United States Ongoing trial 9 trials
  • People Science Los Angeles, California, United States Ongoing trial 9 trials
  • Pfizer Investigational Site San Jose, California, United States 9 trials
  • Pfizer Investigational Site Litchfield Park, Arizona, United States 9 trials
  • Pfizer Investigational Site Kingston, New York, United States 9 trials
  • Pfizer Investigational Site West Covina, California, United States 9 trials
  • Pfizer Investigational Site Lakeland, Florida, United States 9 trials
  • Pfizer Investigational Site Newton, Kansas, United States 9 trials
  • Pfizer Investigational Site Libertyville, Illinois, United States 9 trials

Explore the data behind the map on Pharma Observatory

Pharma Observatory connects clinical trials, sponsors, sites and investigators in one searchable platform.

Visit Pharma Observatory