Gastroenterology Consultants of San Antonio - Pinnacle Clinical Research
Gastroenterology Consultants of San Antonio - Pinnacle Clinical Research

Pinnacle Clinical Research


We Are Committed To Providing Comprehensive Care

The Future of Liver Medicine

Pinnacle Clinical Research is dedicated to conducting late phase clinical trials in the areas of Hepatology and Gastroenterology, with special focus on fatty liver disease. We pride ourselves on conducting high quality research, as a complement to the medical care that our volunteers receive from their routine care center.

Research Team

Led by our Medical Director, Dr. Stephen Harrison, Pinnacle has five board-certified investigators involved with the daily oversight of clinical trials. Our coordinating team consists of six Clinical Research Coordinators and Research Assistants with extensive experience in conducting all phases of clinical trials. Our quality control and regulatory team work with sponsors to ensure the highest quality of data collection and documentation, according to good clinical practices and FDA regulations for every trial.

Research Focus

We have a solid volunteer database and work with over 70 referring physicians in the area to meet target enrollment goals on time. Patient safety and care is our top priority. We conduct clinical trials in the following areas:

  • Non-alcoholic fatty liver disease
  • Hepatitis B and C
  • Primary biliary cholangitis (PBC)
  • Primary sclerosing cholangitis (PSC)
  • Portal hypertension
  • Ulcerative colitis
  • Crohn’s disease
  • Gastroparesis
  • Bowel preparation
  • Other hepatic and GI diseases and conditions


  • Two locations in the San Antonio area with a location in the Austin area coming soon
  • Dedicated patient rooms for research activities
  • In-house dedicated research laboratory for processing and shipping, capable of conducting CLIA waived tests
  • Ability to use central IRBs designated by the study sponsor
  • FibroScan® on-site
  • Wireless temperature monitoring system with alarms and alert notification for ambient, cold and frozen storage for biological samples and drug supply
  • Controlled access document storage space
  • Programmable -80° to -20°C freezers
  • Temperature controlled centrifuges
  • Clinical equipment, routinely inspected and dedicated to the conduct of clinical trials
  • Off-site imaging capabilities
  • On-site infusion suite
  • Private sponsor monitoring rooms

Active Clinical Trials:

We are currently enrolling patients for research studies on the conditions listed below, please contact our research team for more information on the requirements.

  • Non-alcoholic Steatohepatitis (NASH)
  • Primary Biliary Cholangitis (PBC)
  • Hepatitis C
  • Ulcerative Colitis
  • Crohn’s Disease
  • Irritable Bowel Syndrome
  • Gastroparesis

Contact Our Study Team:

Phone: 210.982.0320 | Fax: 210.572.5766

Meet our Pinnacle Research Director

Gastroenterology Consultants of San Antonio - ,

Gail Hinkson

Research Director

Gail joined Pinnacle in April of 2016 as the Clinical Research Director. She has worked in the field of clinical research for the past 20 years, on both the clinical side and sponsor side of studies. Gail has managed a variety of programs to include investigator-initiated protocols, federal grants as well as pharmaceutical and device clinical trials in a variety of therapeutic areas.

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