Clinical Research Sites in Clay County, IL
The top-ranked clinical research sites serving Clay County, IL are Carle Physician Group-Effingham, Crossroads Cancer Center and Centralia Oncology Clinic. We list 4 clinical research sites serving Clay County, IL. 4 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 Clay County, IL. 4 providers, 4 of the top 4 verified against federal or state records. Registry records checked on 2026-11-04.
Top 4 ranked clinical research sites for Clay County
| # | Provider | Verified records | Based in | Phone |
|---|---|---|---|---|
| 1 | Carle Physician Group-Effingham | Site on 272 active studies registered on ClinicalTrials.gov | Effingham, IL (26 mi) | — |
| 2 | Crossroads Cancer Center | Site on 273 active studies registered on ClinicalTrials.gov | Effingham, IL (26 mi) | — |
| 3 | Centralia Oncology Clinic | Site on 205 active studies registered on ClinicalTrials.gov | Centralia, IL (39 mi) | — |
| 4 | Saint Mary's Hospital | Site on 63 active studies registered on ClinicalTrials.gov | Centralia, IL (39 mi) | — |
- Serves this area from Effingham, IL (26 mi)
#2Crossroads Cancer Center
Serves this area from Effingham, IL (26 mi)#3Centralia Oncology Clinic
Serves this area from Centralia, IL (39 mi)#4Saint Mary's Hospital
Serves this area from Centralia, IL (39 mi)
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Frequently asked questions
How many clinical research sites serve Clay County?
We list 4 clinical research sites serving Clay County, IL: 0 based there and 4 serving it from nearby. 4 of the top 4 match an active federal or state record, checked on 2026-11-04.
Which clinical research sites serve Clay County?
The top-ranked clinical research sites serving Clay County, IL are Carle Physician Group-Effingham, Crossroads Cancer Center, Centralia Oncology Clinic and Saint Mary's Hospital. The full ranked list, with the official records each provider matched, is on this page.
Which clinical research sites serving Clay County are verified against official records?
4 of the top 4 match an active official record: Carle Physician Group-Effingham (ClinicalTrials.gov), Crossroads Cancer Center (ClinicalTrials.gov), Centralia Oncology Clinic (ClinicalTrials.gov) and Saint Mary's Hospital (ClinicalTrials.gov). 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
Flora, Louisville, Clay City, Xenia, Iola, Sailor Springs