Currently Enrolling Studies

Endeavor Clinical Trials
8042 Wurzbach Road
San Antonio, TX 78229


Endeavor Clinical Trials


Endeavor Clinical Trials of San Antonio, Texas, has over 20 years of experience conducting research and clinical trials specializing in post-op pain, diabetic-related pain, other pain, diabetes, vaccines, dermatology and podiatry.

Richard A. Pollak, D.P.M., M.S., is a key opinion leader and board-certified by the American Board of Foot and Ankle Surgery. He has been practicing for over 35 years in San Antonio Texas, and is highly regarded for his participation in clinical and pharmaceutical research in the United States. He has been the Principal Investigator in more than 125 studies. He is an expert in multiple areas of podiatry including toenail fungus, athlete’s foot and diabetic foot ulcers.

The site is conveniently located 10 miles from the San Antonio International Airport. Endeavor has access to the highest quality patients and associated data. The site has a strong relationship with private practice physicians in San Antonio for patient referrals, which contributes to their strong recruitment performance. They are known for their exceptional safety preparedness, with all staff trained to BLS certification, ACLS certified personnel, PALS certified personnel, EMT-P staff and a crash cart on-site.

All data collected throughout the clinical trial goes through our stringent QA process ensuring data is clean and sponsor ready within 72 hours from time of collection.

Our Facility

Committed To The Discovery Of New Medicine To Improve The Lives Of People Everywhere

Housed in over 1600 square feet, our research and clinical trial facility contains five examination rooms, dedicated monitoring rooms with high-speed internet connections, a private patient waiting room, a dedicated laboratory-processing area with ambient and refrigerated calibrated centrifuges, a locked binder room, locked drug cabinets and administrative offices for our staff.

Our facility includes:

  • 2-8 Degree, Temperature Monitored Refrigerator Drug Storage
  • 2-8 Degree, Temperature Monitored Vaccine Refrigerator for Drug Storage
  • -20 Degree, Temperature Monitored Deep Freezer for Frozen Lab Specimen Storage
  • -70 Degree, Temperature Monitored Deep Freezer for Frozen Lab Specimen Storage
  • Broadband Internet Access with Wireless Access
  • Refrigerated Centrifuge
  • Synchronous Atomic Clocks & Watches
  • X-Ray
  • Diagnostic Ultrasound
  • ABI Machine
  • Onsite CLIA Waived Laboratory
  • Adjustable Exam Tables
  • 12 Lead ECG Machine
  • Blood Pressure/Vital Signs Monitoring Equipment
  • Pulse Oximetry
  • Microscope
  • Height/Weight Scale
Richard Pollak, D.P.M., M.S.
Sherwyn Schwartz, M.D.
Constance Barone, M.D.
Hernan Salazar, D.O., Medical Director
Russell Stanley, D.P.M.


Richard Pollak, D.P.M., M.S.

Dr. Richard A. Pollak is an expert in multiple areas of podiatry including toenail fungus, athlete’s foot and diabetic foot ulcers. He is a key opinion leader and board-certified in foot and ankle surgery. He has been practicing for 37 years in San Antonio, TX, and is highly renowned for clinical and pharmaceutical research in the United States.

Sherwyn Schwartz, M.D.

Dr. Sherwyn Schwartz is the founder and former CEO of DGD clinic and DGD research center. While running the former the clinic saw 450 patients per day with outcomes that surpassed the Cleveland clinic. He also personally saw about 125 patients per week for 37 years. In this role he also interacted with payers having knowledge of the needs of the marketplace.

Constance Barone, M.D.

Dr. Constance Barone has been a practicing plastic surgeon for more than 25 years. She has trained with some of the best surgeons in the country and has brought her knowledge and expertise to San Antonio. Dr. Barone is a renowned innovator of endoscopic surgical techniques, a way of performing major surgery without resulting in significant scarring and long recovery periods. She prides herself on her ability to perform an extremely wide array of cosmetic enhancement procedures with an expert hand and a personal, comfortable approach with patients.

Hernan Salazar, D.O., Medical Director

Dr. Hernan Salazar, is a physician with over 41 years of experience in internal medicine, general practice, and family practice. He obtained a Bachelor of Science in Environmental Health from the school of Public Health at the University of California at Los Angeles.

Russell Stanley, D.P.M.

Dr. Stanley is highly skilled in ankle, forefoot and rearfoot surgery. He has hospital privileges and is an attending at Southwest Texas Methodist Hospital and St. Luke’s Baptist Hospital, and is a board-qualified foot and ankle surgeon. He also participates in a range of research studies including diabetic foot ulcer, bunion surgery, tinea pedis, as well as the treatment of onychomycosis with oral, topical and laser therapy.