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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.

  • Pfizer Investigational Site Costa Mesa, California, United States 11 trials
  • Pfizer Investigational Site Tempe, Arizona, United States 11 trials
  • Pfizer Investigational Site Bellevue, Washington, United States 11 trials
  • Pfizer Investigational Site Princeton, New Jersey, United States 11 trials
  • Pfizer Investigational Site Anderson, South Carolina, United States 11 trials
  • Pfizer Investigational Site Lake Charles, Louisiana, United States 11 trials
  • PharmaDev Clinical Research Institute, LLC Miami, Florida, United States Ongoing trial 11 trials
  • Pharmaceutical Research Associates, Inc. Salt Lake City, Utah, United States 11 trials
  • Pharmacology Research Institute Northridge, California, United States 11 trials
  • Phoenix Medical Group Peoria, Arizona, United States Ongoing trial 11 trials
  • Piedmont Athens Regional Medical Center Athens, Georgia, United States 11 trials
  • Pinehurst Surgical Clinic Pinehurst, North Carolina, United States Ongoing trial 11 trials
  • PinnacleHealth Cancer Center-Community Campus Harrisburg, Pennsylvania, United States Ongoing trial 11 trials
  • Prairie Heart Institute Springfield, Illinois, United States Ongoing trial 11 trials
  • Precision NextGen Oncology Beverly Hills, California, United States Ongoing trial 11 trials
  • Precision Trials AZ, LLC Phoenix, Arizona, United States Ongoing trial 11 trials
  • Preferred Primary Care Physicians, Preferred Clinical Research (Ofc 18) Pittsburgh, Pennsylvania, United States Ongoing trial 11 trials
  • Preferred Primary Care Physicians, Preferred Clinical Research-St. Clair Pittsburgh, Pennsylvania, United States Ongoing trial 11 trials
  • Premier Pain Centers Shrewsbury, New Jersey, United States Ongoing trial 11 trials
  • Presbyterian/St Luke's Hospital Denver, Colorado, United States 11 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