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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 307,205 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 America307,205

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 States307,205
France73,197
Germany73,176
Italy48,496
China45,975
Japan38,756
Spain36,445
United Kingdom32,416

Trial sites

307,205 sites. Sites with a public page link to it on Pharma Observatory.

  • Vitreo-Retina Medical Group Sacramento, California, United States Ongoing trial 1 trial
  • Vitreo-Retinal Associates - Worcester Grand Rapids, Michigan, United States 1 trial
  • Vitreo-Retinal Associates PC Grand Rapids, Michigan, United States 1 trial
  • Vitreo-Retinal Associates, P.C. Grand Rapids, Michigan, United States 1 trial
  • Vitreo-Retinal Associates, P.C. Worcester, Massachusetts, United States 1 trial
  • Vitreo-Retinal Consultants Grand Rapids, Michigan, United States 1 trial
  • Vitreo-Retinal Consultants & Surgeons, P.A. Wichita, Kansas, United States 1 trial
  • Vitreo-Retinal Consultants & Surgeons, P.A. (site 274) Wichita, Kansas, United States 1 trial
  • Vitreo-Retinal Consultants and Surgeons PA Wichita, Kansas, United States 1 trial
  • VitreoRetinal Associates Grand Rapids, Michigan, United States 1 trial
  • VitreoRetinal Consultants of NY Hauppauge, New York, United States 1 trial
  • VitreoRetinal Surgery (VRSMN) Center Minneapolis, Minnesota, United States 1 trial
  • VitreoRetinal Surgery PLLC DBA Retina Consultants of Minnesota Saint Louis Park, Minnesota, United States 1 trial
  • VitreoRetinal Surgery PLLC DBA Retina Consultants of Minnesota /ID# 256160 Edina, Minnesota, United States Ongoing trial 1 trial
  • VitreoRetinal Surgery PLLC DBA Retina Consultants of Minnesota /ID# 256272 Edina, Minnesota, United States Ongoing trial 1 trial
  • VitreoRetinal Surgery, P.A. Edina, Minnesota, United States 1 trial
  • VitreoRetinal Surgery, PLLC. Saint Louis Park, Minnesota, United States 1 trial
  • Vitreoretinal Associates, P.A. /ID# 256150 Gainesville, Florida, United States Ongoing trial 1 trial
  • Vitreoretinal Associates, P.A. /ID# 256266 Gainesville, Florida, United States Ongoing trial 1 trial
  • Vitreoretinal Consultants Great Neck, New York, 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.