#1Medrasa Clinical Research
Based in Sherman, TX
Clinical Research Sites in Grayson County, TX
The top-ranked clinical research sites serving Grayson County, TX are Medrasa Clinical Research, Premier Pulmonary Critical Care and Sleep Medicine and Sherman Clinical Research. We list 109 clinical research sites serving Grayson County, TX. 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 Grayson County, TX. 109 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 Grayson County
#2Premier Pulmonary Critical Care and Sleep Medicine
Based in TX#3Sherman Clinical Research
Based in Sherman, TX#4Soma Clinical Trials
Based in TX#5Texama Medical Center
Based in TX#6Texas Cancer Center-Sherman
Based in TX#7Texas Institute for Neurological Disorders - Sherman
Based in Sherman, TX#8Texas Institute for Neurological Disorders - Sherman- Site Number : 8400018
Based in Sherman, TX#9Texas Oncology - Denison
Based in TX#10Texas Oncology - Denison
Based in TX
20 more providers serving this area
- Texas Oncology - Denison Cancer Center, TX
- Texas Oncology - Northeast Texas, TX
- North Texas Research Associates, McKinney, TX (26 mi)
- Revival Research Institute, LLC, McKinney, TX (26 mi)
- Revival Research Institute - McKinney, McKinney, TX (26 mi)
- Texas Institute of Cardiology PA, McKinney, TX (26 mi)
- Texas Oncology-McKinney, McKinney, TX (26 mi)
- Texas Oncology - Northeast Texas, McKinney, TX (26 mi)
- DelRicht Research, Prosper, TX (28 mi)
- DelRicht Research @ Zomnir Family Medicine, Prosper, TX (28 mi)
- ACRC Trials, Frisco, TX (32 mi)
- Reveal Research Institute, Frisco, TX (32 mi)
- Metroplex Pulmonary & Sleep Center, McKinney, TX (32 mi)
- North Dallas Research Associates, McKinney, TX (32 mi)
- Tekton Research, McKinney, TX (32 mi)
- Wellness Clinical Research, McKinney, TX (32 mi)
- Arthritis and Rheumatology Research Institute, Frisco, TX (32 mi)
- Arthritis & Rheumatology Institute - Frisco, Frisco, TX (32 mi)
- ENT Associates of Texas, McKinney, TX (32 mi)
- Allen Arthritis, Allen, TX (35 mi)
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Frequently asked questions
How many clinical research sites serve Grayson County?
We list 109 clinical research sites serving Grayson County, TX: 12 based there and 97 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 Grayson County?
The top-ranked clinical research sites serving Grayson County, TX are Medrasa Clinical Research, Premier Pulmonary Critical Care and Sleep Medicine, Sherman Clinical Research, Soma Clinical Trials and Texama Medical Center. The full ranked list, with the official records each provider matched, is on this page.
Which clinical research sites serving Grayson County are verified against official records?
10 of the top 10 match an active official record: Medrasa Clinical Research (ClinicalTrials.gov), Premier Pulmonary Critical Care and Sleep Medicine (ClinicalTrials.gov), Sherman Clinical Research (ClinicalTrials.gov), Soma Clinical Trials (ClinicalTrials.gov) and Texama Medical Center (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 Grayson County
Communities served
Denison, Van Alstyne, Whitesboro, Howe, Pottsboro, Gunter, Preston, Collinsville, Whitewright, Bells, Tioga, Sherwood Shores, Southmayd, Tom Bean, Knollwood, Sadler, Dorchester