#1Comprehensive Eye Care, Ltd.
Serves this area from MO
Clinical Research Sites in Warren County, MO
The top-ranked clinical research sites serving Warren County, MO are Comprehensive Eye Care, Ltd., Mercy Hospital Washington and Psychiatric Care and Research Center. We list 16 clinical research sites serving Warren County, MO. 16 of the providers shown match an active record from ClinicalTrials.gov, checked on the date shown. Rankings follow our published methodology; sponsored placements never change rank.
Clinical Research Sites serving Warren County, MO. 16 providers, 10 of the top 10 verified against federal or state records. Registry records checked on 2026-11-04.
Top 10 ranked clinical research sites for Warren County
#2Mercy Hospital Washington
Serves this area from MO#3Psychiatric Care and Research Center
Serves this area from O'Fallon, MO (23 mi)#4Midwest Research Group
Serves this area from Weldon Spring Heights, MO (26 mi)#5St. Charles Clinical Research
Serves this area from Weldon Spring Heights, MO (26 mi)#6St. Charles Psychiatric Associates - Midwest Research Group
Serves this area from Weldon Spring Heights, MO (26 mi)#7Elixia MNA
Serves this area from St. Peters, MO (30 mi)#8Siteman Cancer Center at Saint Peters Hospital
Serves this area from St. Peters, MO (30 mi)#9Siteman Cancer Center - Saint Peters
Serves this area from St. Peters, MO (30 mi)#10Siteman Cancer Center - St Peters
Serves this area from St. Peters, MO (30 mi)
6 more providers serving this area
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Frequently asked questions
How many clinical research sites serve Warren County?
We list 16 clinical research sites serving Warren County, MO: 0 based there and 16 serving it from nearby. 10 of the top 10 match an active federal or state record, checked on 2026-11-04.
Which clinical research sites serve Warren County?
The top-ranked clinical research sites serving Warren County, MO are Comprehensive Eye Care, Ltd., Mercy Hospital Washington, Psychiatric Care and Research Center, Midwest Research Group and St. Charles Clinical Research. The full ranked list, with the official records each provider matched, is on this page.
Which clinical research sites serving Warren County are verified against official records?
10 of the top 10 match an active official record: Comprehensive Eye Care, Ltd. (ClinicalTrials.gov), Mercy Hospital Washington (ClinicalTrials.gov), Psychiatric Care and Research Center (ClinicalTrials.gov), Midwest Research Group (ClinicalTrials.gov) and St. Charles Clinical Research (ClinicalTrials.gov), and 5 more on this page. Each badge links to the official record it matched.
How are these companies ranked?
By our published methodology: verified registrations, documented capabilities, years registered and responsiveness. Sponsored placements are shown separately and never affect rank.
What does "Verified" mean on this page?
"Verified" means we matched the provider to an active official record on the date shown; each badge links to that record. The absence of a badge only means we have not verified that item.
How do sponsors judge a research site?
Common checks are enrollment history in the indication, experienced coordinators, IRB arrangements, start-up time and data quality. ClinicalTrials.gov shows which studies a site has been listed on.
"Verified" means we matched the provider to an active official record on the date shown. The absence of a badge only means we have not verified that item. How we rank and verify. Page updated .
Communities served
Warrenton, Wright City, Marthasville, Truesdale, Innsbrook, Pendleton, Three Creeks