Contact Clinical Trials of Texas, Inc.

Thank you for your interest in participating in research at Clinical Trials of Texas, located in San Antonio, TX. If you are interested in volunteering to participate in research, please click here to browse and apply for currently enrolling studies.

Get In Touch

If you have any question about participating in research at Clinical Trials of Texas, we'd love to hear from you today!

Volunteer for a study at Clinical Trials of Texas to learn more about your medical condition and receive access to new treatments and medications at no cost to you.

Click here to browse and apply for currently enrolling studies >

4 + 15 =

7940 Floyd Curl Dr #700,
San Antonio, TX 78229

Clinical Trials of Texas, Inc occupies over 19,000 sq. ft. on multiple floors of Medical Center Tower 1


Mon: 7:30am–5:30pm
Tue: 7:30am–5:30pm
Wed: 7:30am–5:30pm
Thu: 7:30am–5:30pm
Fri: 7:30am–5:30pm
Sat: 9am-1pm (call center only)
Sun: Closed


Kay Scroggins, RN, CCRC

VP, Business Development – Late Phase

Lele Simmons, BBA

Director, Business Operations

Ann-Marie Laird, BS

Team Lead, Internal Medicine

Matthew Korte, BS

Manager, Quality Control/Data Entry

Dawn Killian, BS

Medical Director

Douglas S. Denham, DO, CPI

VP, Business Development – Early Phase

Joel Eary, MBA

Director, Human Resources

Laura Melghem, HRM

Assistant Director, Early Phase Services/Lab Manager

Paul Esparza, BS

Sr. VP, Operations

Leisel Koerber, BBA, CCRC

Director, Marketing/Recruitment

Cindi Nellis, BA

Team Lead, Women’s Health/Mental Health

Cynthia Ramos, BS, CCRC

Manager, Regulatory Compliance/Quality Assurance

Staci Poettgen, BS

Currently Enrolling Studies

CTT is currently accepting applicants for studies testing new treatments and medications for a variety of medical conditions.