#1Amicis Centers of Clinical Research
Based in MO
Clinical Research Sites in St. Louis County, MO
The top-ranked clinical research sites serving St. Louis County, MO are Amicis Centers of Clinical Research, Arch Clinical Trials and Barnes-Jewish West County Hospital. We list 190 clinical research sites serving St. Louis County, MO. 30 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 St. Louis County, MO. 190 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 St. Louis County
#2Arch Clinical Trials
Based in Creve Coeur, MO#3Barnes-Jewish West County Hospital
Based in Creve Coeur, MO#4BJC Outpatient Center at Sunset Hills
Based in Sunset Hills, MO#5Center for Cancer Care and Research
Based in Creve Coeur, MO#6Christian Hospital
Based in MO#7Clayton Sleep Institute
Based in Affton, MO#8Clinical Research Professionals
Based in Wildwood, MO#9Comprehensive Cancer Care PC
Based in Creve Coeur, MO#10David C Pratt Cancer Center
Based in Creve Coeur, MO
20 more providers serving this area
- David C. Pratt Center, Creve Coeur, MO
- DelRicht Research - Town and Country, Chesterfield, MO
- Galen Research LLC, Wildwood, MO
- Gateway Gastroenterology - Site Number: 8400097, Chesterfield, MO
- Gateway Gastroenterology-Site Number: 8400097, Creve Coeur, MO
- Gateway GI Research, LLC, Creve Coeur, MO
- Healthcare Research Network, Hazelwood, MO
- Healthcare Research Network - Hazelwood MO, Hazelwood, MO
- IMA Clinical Research - St. Louis, Richmond Heights, MO
- KAD Clinical Research, Affton, MO
- Mercy Clinic Oncology and Hematology - David C. Pratt Cancer Center, Creve Coeur, MO
- Mercy Clinic Oncology and Hematology - Sindelar Cancer Center, MO
- Mercy David C. Pratt Cancer Center, Creve Coeur, MO
- Mercy Hospital, Creve Coeur, MO
- Mercy Hospital Saint Louis, Creve Coeur, MO
- Mercy Hospital South, MO
- Mercy Hospital St. Louis, Creve Coeur, MO
- Mercy Oncology and Hematology - Clayton-Clarkson, Ballwin, MO
- Mercy Research, Creve Coeur, MO
- Mercy South, MO
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Frequently asked questions
How many clinical research sites serve St. Louis County?
We list 190 clinical research sites serving St. Louis County, MO: 86 based there and 104 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 St. Louis County?
The top-ranked clinical research sites serving St. Louis County, MO are Amicis Centers of Clinical Research, Arch Clinical Trials, Barnes-Jewish West County Hospital, BJC Outpatient Center at Sunset Hills and Center for Cancer Care and Research. The full ranked list, with the official records each provider matched, is on this page.
Which clinical research sites serving St. Louis County are verified against official records?
10 of the top 10 match an active official record: Amicis Centers of Clinical Research (ClinicalTrials.gov), Arch Clinical Trials (ClinicalTrials.gov), Barnes-Jewish West County Hospital (ClinicalTrials.gov), BJC Outpatient Center at Sunset Hills (ClinicalTrials.gov) and Center for Cancer Care and 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 .
Cities in St. Louis County
Communities served
Chesterfield, Oakville, Wildwood, University City, Ballwin, Kirkwood, Mehlville, Maryland Heights, Hazelwood, Webster Groves, Affton, Old Jamestown, Creve Coeur, Spanish Lake, Manchester, Ferguson, Concord, Clayton, Lemay, Overland, Eureka, Jennings, St. Ann, Crestwood, Town and Country, Bridgeton, Bellefontaine Neighbors, Ellisville, Des Peres, Sunset Hills, Richmond Heights, Olivette, Ladue, Brentwood, Maplewood, Berkeley, Sappington, Valley Park, Black Jack, St. John, Shrewsbury, Glendale, Dellwood, Rock Hill, Glasgow Village, Breckenridge Hills, Normandy, Fenton, Woodson Terrace, Frontenac, Northwoods, Castle Point, Pine Lawn, Green Park, Clarkson Valley, Pagedale, Riverview, Marlborough, Moline Acres, Bel-Ridge