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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 307,017 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.

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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 America307,017

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 States307,017
Germany73,166
France73,153
Italy48,417
China45,895
Japan38,740
Spain36,429
United Kingdom32,402

Trial sites

307,017 sites. Sites with a public page link to it on Pharma Observatory.

  • Western Connecticut Orthopedic Surgical Center Danbury, Connecticut, United States Ongoing trial 1 trial
  • Western DuPage Obstetrics and Gynecology Downers Grove, Illinois, United States 1 trial
  • Western Gastroenterology Group Los Angeles, California, United States 1 trial
  • Western Greater Los Angeles VA Medical Center Los Angeles, California, United States Ongoing trial 1 trial
  • Western Hematology Oncology Paducah, Kentucky, United States 1 trial
  • Western High School Latham, Ohio, United States 1 trial
  • Western Home Communities Cedar Falls, Iowa, United States 1 trial
  • Western Infectious Disease Consultants Denver, Colorado, United States 1 trial
  • Western Institutional Review Board Olympia, Washington, United States 1 trial
  • Western Institutional Review Board® (WIRB®) Puyallup, Washington, Washington, United States 1 trial
  • Western Integrated Pain Treatment Centers Westminster, Colorado, United States 1 trial
  • Western KY Rheumatology /ID# 254937 Hopkinsville, Kentucky, United States Ongoing trial 1 trial
  • Western KY Rheumatology /ID# 255026 Hopkinsville, Kentucky, United States 1 trial
  • Western KY Rheumatology PLLC Hopkinsville, Kentucky, United States 1 trial
  • Western Kentucky Heart and Lung Research Foundation Bowling Green, Kentucky, United States Ongoing trial 1 trial
  • Western Kentucky Hematology & Oncology Paducah, Kentucky, United States 1 trial
  • Western Kentucky Hematology and Oncology Group, PSC Paducah, Kentucky, United States 1 trial
  • Western Kentucky Pulmonary Clinic Louisville, Kentucky, United States 1 trial
  • Western Kentucky Rheumatology PLLC Hopkinsville, Kentucky, United States 1 trial
  • Western Maryland Health Sys Cumberland, Maryland, United States 1 trial

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