All medications that are sold either by prescription or over-the-counter (OTC) must be properly tested in order to ensure that they adequately treat the condition that they were designed for and do not present a significant risk to the people that take them. New medications are first tested in animals (pre-clinical trials) so that researchers can acquire a better understanding for how the medications will react in humans. After animal testing is complete, researchers will then test the medication in humans, which is called clinical studies.

All clinical studies are overseen by two very important governing bodies, the Food and Drug Administration (FDA) and an Institutional review Board (IRB). While the FDA's primary focus is both the safety and efficiency of research studies, the IRB's sole purpose is to protect research subject rights. Additionally, all clinical research studies are overseen by a Principal Investigator - a medical doctor trained to conduct research studies properly, safely and ethically. All of the Principal Investigators that oversee research studies at Clinical Trials of Texas, Inc. are Board Certified and have experience in treating patients within their own practices.

Participants/volunteers in clinical trials must meet the criteria required by the study protocol. Qualified participants who agree to participate in the study may be

CTT is located in the northwest portion of San Antonio in the Southwest Texas Medical Center. CTT is a quality Site Management Organization (SMO) that contracts with research physicians who are experienced with federal regulations and Good Clinical Practices. Local physicians that work with CTT provide excellent patient care and medical oversight as volunteers participate in studies. The safety and care of research participants is their top priority.