#1SSM Health Cancer Care - St. Clare
Serves this area from Fenton, MO (18 mi)
Clinical Research Sites in Jefferson County, MO
The top-ranked clinical research sites serving Jefferson County, MO are SSM Health Cancer Care - St. Clare, Amicis Centers of Clinical Research and Mercy Clinic Oncology and Hematology - Sindelar Cancer Center. We list 92 clinical research sites serving Jefferson 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 Jefferson County, MO. 92 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 Jefferson County
#2Amicis Centers of Clinical Research
Serves this area from MO#3Mercy Clinic Oncology and Hematology - Sindelar Cancer Center
Serves this area from MO#4Mercy Hospital South
Serves this area from MO#5Mercy South
Serves this area from MO#6St. Louis Foot and Ankle, LLC
Serves this area from MO#7Tekton Research LLC
Serves this area from MO#8Tekwani Vision Center
Serves this area from MO#9The Retina Institute
Serves this area from MO#10Siteman Cancer Center-South County
Serves this area from Oakville, MO (18 mi)
20 more providers serving this area
- BJC Outpatient Center at Sunset Hills, Sunset Hills, MO (20 mi)
- Missouri Baptist Outpatient Center-Sunset Hills, Sunset Hills, MO (20 mi)
- Parkland Health Center-Bonne Terre, MO
- St Louis V A Medical Center, Lemay, MO (23 mi)
- Veteran's Affairs Medical Center - Saint Louis, Lemay, MO (23 mi)
- Clayton Sleep Institute, Affton, MO (23 mi)
- KAD Clinical Research, Affton, MO (23 mi)
- Mercy Oncology and Hematology - Clayton-Clarkson, Ballwin, MO (24 mi)
- Saint Louis Cancer and Breast Institute-Ballwin, Ballwin, MO (24 mi)
- Saint Louis Rheumatology, Webster Groves, MO (25 mi)
- Missouri Baptist, Des Peres, MO (25 mi)
- Missouri Baptist Cancer Center, Des Peres, MO (25 mi)
- Missouri Baptist Medical Center, Des Peres, MO (25 mi)
- Ophthalmology Associates, Des Peres, MO (25 mi)
- Retina Research Institute, LLC, Brentwood, MO (27 mi)
- Clinical Research Professionals, Wildwood, MO (27 mi)
- Galen Research LLC, Wildwood, MO (27 mi)
- DelRicht Research - Town and Country, Chesterfield, MO (28 mi)
- Gateway Gastroenterology - Site Number: 8400097, Chesterfield, MO (28 mi)
- Midwest Vision Research Foundation, Chesterfield, MO (28 mi)
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Frequently asked questions
How many clinical research sites serve Jefferson County?
We list 92 clinical research sites serving Jefferson County, MO: 0 based there and 92 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 Jefferson County?
The top-ranked clinical research sites serving Jefferson County, MO are SSM Health Cancer Care - St. Clare, Amicis Centers of Clinical Research, Mercy Clinic Oncology and Hematology - Sindelar Cancer Center, Mercy Hospital South and Mercy South. The full ranked list, with the official records each provider matched, is on this page.
Which clinical research sites serving Jefferson County are verified against official records?
10 of the top 10 match an active official record: SSM Health Cancer Care - St. Clare (ClinicalTrials.gov), Amicis Centers of Clinical Research (ClinicalTrials.gov), Mercy Clinic Oncology and Hematology - Sindelar Cancer Center (ClinicalTrials.gov), Mercy Hospital South (ClinicalTrials.gov) and Mercy South (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
Arnold, Festus, Murphy, De Soto, Pevely, Barnhart, Herculaneum, Crystal City, Imperial, High Ridge, Hillsboro, Byrnes Mill, Raintree Plantation, Cedar Hill, LaBarque Creek, Summer Set, Olympian Village, Horine, Briarwood Estates, Lake Tekakwitha, Cedar Hill Lakes, Scotsdale, Parkdale, Kimmswick, Peaceful Village