Our Team

Our experienced physicians and nurse coordinators have conducted Phase I, II, III, and IV clinical trials for over 16 years. The Principal Investigators have conducted over 700 trials in all areas of adult urology. Urology San Antonio’s Clinical Trials team is also made up of four clinical research coordinators.

Dr. Christopher Cantrill, Urologist

Christopher Cantrill, MD

“Seeing the impact firsthand with my family,
clinical trials can provide options for my
patients when current therapies are not
longer available.”


Natalie Gaines, MD

“I love clinical trials because it gives me
the opportunity to offer patients treatments
that aren’t available anywhere else.”

Dr. Daniel Saltzstein - Urologist

Daniel Satzstein, MD

“My involvement with clinical trials stems
from the opportunity to be on the cutting
edge of treatment. The patients I work with
in these studies are trailblazers. They’re not
only helping their own treatment and quality
of life, but they’re also affecting patient care
well into the future.”


David Talley, MD

“Clinical trials give our patients access
to new and cutting edge treatments that
not only help themselves, but also benefit
future generations.”

Patient Testimonials

“During a routine evaluation, I had an elevated PSA level. My doctor wanted to get me into a clinical research study because he thought I’d see a lot of great benefits from it. I was approved and within two months from starting my PSA dropped from 7.0 to 4.0. Now, after a few more months, my PSA is at .05. I’m sticking with it and I feel good about the study. It’s not just the medicine I appreciate, but the whole team has been fantastic to work with. Everyone I’ve come in contact with has my health as their utmost concern.” – Ben C.

“I was diagnosed with prostate cancer and my other treatment stopped working. My cells started manufacturing the hormone they wanted, but not the one they needed. I was blessed to get into the clinical research program because it’s been very effective at keeping down my PSA. It works – I travel a long way to get here and everything has been very thorough. The staff has always been easy to work with and I’m very happy with my results.” – Truman F.