#1Cancer Centers of Southwest Oklahoma
Serves this area from Lawton, OK (29 mi)
Clinical Research Sites in Tillman County, OK
The top-ranked clinical research sites serving Tillman County, OK are Cancer Centers of Southwest Oklahoma, Cancer Centers of Southwest Oklahoma Research and Grayline Research Center. We list 6 clinical research sites serving Tillman County, OK. 6 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 Tillman County, OK. 6 providers, 6 of the top 6 verified against federal or state records. Registry records checked on 2026-11-04.
Top 6 ranked clinical research sites for Tillman County
| # | Provider | Verified records | Based in | Phone |
|---|---|---|---|---|
| 1 | Cancer Centers of Southwest Oklahoma | Site on 3 active studies registered on ClinicalTrials.gov | Lawton, OK (29 mi) | — |
| 2 | Cancer Centers of Southwest Oklahoma Research | Site on 106 active studies registered on ClinicalTrials.gov | Lawton, OK (29 mi) | — |
| 3 | Grayline Research Center | Site on 9 active studies registered on ClinicalTrials.gov | Wichita Falls, TX (40 mi) | — |
| 4 | Digestive Health Research of North Texas | Site on 7 active studies registered on ClinicalTrials.gov | Wichita Falls, TX (41 mi) | — |
| 5 | Digestive Research of Central Texas, LLC | Site on 3 active studies registered on ClinicalTrials.gov | Wichita Falls, TX (41 mi) | — |
| 6 | ObjectiveHealth-Digestive Health Research of North Texas | Site on 2 active studies registered on ClinicalTrials.gov | Wichita Falls, TX (41 mi) | — |
#2Cancer Centers of Southwest Oklahoma Research
Serves this area from Lawton, OK (29 mi)#3Grayline Research Center
Serves this area from Wichita Falls, TX (40 mi)#4Digestive Health Research of North Texas
Serves this area from Wichita Falls, TX (41 mi)#5Digestive Research of Central Texas, LLC
Serves this area from Wichita Falls, TX (41 mi)#6ObjectiveHealth-Digestive Health Research of North Texas
Serves this area from Wichita Falls, TX (41 mi)
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Frequently asked questions
How many clinical research sites serve Tillman County?
We list 6 clinical research sites serving Tillman County, OK: 0 based there and 6 serving it from nearby. 6 of the top 6 match an active federal or state record, checked on 2026-11-04.
Which clinical research sites serve Tillman County?
The top-ranked clinical research sites serving Tillman County, OK are Cancer Centers of Southwest Oklahoma, Cancer Centers of Southwest Oklahoma Research, Grayline Research Center, Digestive Health Research of North Texas and Digestive Research of Central Texas, LLC. The full ranked list, with the official records each provider matched, is on this page.
Which clinical research sites serving Tillman County are verified against official records?
6 of the top 6 match an active official record: Cancer Centers of Southwest Oklahoma (ClinicalTrials.gov), Cancer Centers of Southwest Oklahoma Research (ClinicalTrials.gov), Grayline Research Center (ClinicalTrials.gov), Digestive Health Research of North Texas (ClinicalTrials.gov) and Digestive Research of Central Texas, LLC (ClinicalTrials.gov), and 1 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
Frederick, Grandfield, Tipton, Davidson, Manitou, Hollister, Loveland