ICON Early Phase Services/CRU

Center Information

Rita Flusche’
ICON Early Phase Services/CRU
8307 Gault Lane
San Antonio, TX 78209
Main Number: 210-283-4500
Toll Free Recruitment Number: 1-877-848-7425

Currently Enrolling Trials

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Therapeutic Areas

Cardiology/Vascular Diseases
Healthy Volunteers
Infections and Infectious Diseases
Internal Medicine
Pulmonary/Respiratory Diseases


The San Antonio Clinical Research Unit is a customized site capable of meeting today’s requirements for clinical trials including 120 available beds, pharmacy and drug storage, an on-site PK laboratory, clinical laboratory and a 48-channel Mortara ECG system. This site merged with ICON in 2008 and in that time we have conducted more than 360 Phase I studies. Our experienced staff provides expert delivery of services to safely and efficiently manage early-phase studies from First-in-Human to proof of concept. This includes all services such as an active volunteer database, data collection fully aligned to FDA guidelines, electronic data capture and regulatory approvals.


Clinical Trials Experience

  • First in Human
  • Maximum Tolerated Dose Studies
  • SAD
  • MAD
  • Food Effects Pharmacokinetics / Pharmacodynamics Studies
  • Drug – Drug Interaction (DDI) Studies
  • Bioequivalence
  • Thorough QTc
  • Vaccine
  • Patient populations including diabetic, obese, elderly, postmenopausal and gastrointestinal disorders

The current pharmacodynamic techniques at our San Antonio CRU include:

  • Abdominal Sonography
  • Hypertension
  • Induced Sputum
  • Oximetry
  • Skin Prick Allergy Test
  • Blood Gas Measurements
  • Imaging/MRI
  • OGTT
  • Spirometry
  • Treadmill Challenge
  • Pupillometry
  • DXA


The San Antonio CRU is equipped with 120 single beds arranged in rooms with 3-5 people per room. The unit has conducted a range of in-house studies with volunteers residing in the unit from one night to 28 overnights. As subject comfort is a priority, each patient room is equipped with cable television and subject-controlled heating and air conditioning. In addition to comfort, the unit is committed to subject safety and security. In the case of emergency, personnel are instructed to call 911 for ambulance/EMT and to call Northeast Baptist Hospital Emergency Room to notify them of an impending arrival. The hospital is 3.45 miles, or approximately 7 minutes, from the CRU.

  • 120 Beds:
    • Private Bath Area (ideal for long term studies) in each room
    • ICU ward with 10 hospital beds
  • In-house CLIA/COLA certified, clinical laboratory providing hematology, coagulation, platelet aggregation, chemistry, drug testing, urinalysis
  • 48-channel Mortara telemetry, digital multiple/serial central ECGs, continuous 12-lead Holter monitors, core ECG Data Storage - ideal for tQTC studies
  • Pulmonary function
  • Electronic Data Capture (EDC) systems
  • On-site pharmacy:
    • National IV Certification
    • Bio hood
  • 2 PK processing laboratories with 12 centrifuges on-site and four -70 degree freezers
  • Central IRB


    The San Antonio CRU medical staff consists of Physicians, Registered Nurses (RN), Licensed Vocational Nurses (LVN), Paramedics, Medical Assistants (MA), Respiratory Therapists, and Phlebotomists. The medical knowledge and background of individuals plays an important role in the selection of the clinical staff we employ at the unit. The CRU promotes ongoing medical and emergency care continuing education by offering on site Cardiopulmonary Resuscitation (CPR) training by a certified external trainer (as required by CPR guidelines) every two years. All clinical staff members are encouraged to become Advanced Cardiac Life Support (ACLS) certified. Currently ACLS certified employees are staffed on all unit shifts to ensure emergency care coverage 24/7. Additionally, all clinical staff members are encouraged to maintain continuing education credits per their licensure and/or registration requirements.

    San Antonio employs the following dedicated full-time Investigators:

    Dennis A. Ruff, M.D. - Medical Director

    • Albany Medical College Union University (Albany, NY)
    • Board Certified, Internal Medicine
    • Clinical Professor - Dept. of Medicine (UTHSC San Antonio, TX) 1989-2004
    • 25+ years in clinical research
    • 450+ Phase I-III Clinical Trials Conducted

    Emanuel DeNoia, M.D. - Medical Director

    • College of Medicine of New Jersey (Newark, NJ)
    • Board Certified, Internal Medicine
    • 20+ years in industry research
    • 300+ Phase I-III Clinical Trials Conducted

    Cassandra C. Key, M.D.

    • Board Certified, Internal Medicine and Geriatric Medicine15+ years in medical practice
      in outpatient clinics, nursing homes, and hospitals with various medical directorships
    • Recognized as “Best Of San Antonio Doctors, 2012” by S.A. Scene magazine
    • 20+ Phase I-III studies as principal or sub investigator


    Our site has a volunteer database of both healthy volunteers and special populations. We regularly access other select patient populations through our relationships with local physicians. Recognizing that the foundation for a successful study begins with successful recruitment, our unit has a dedicated team whose sole focus is recruiting and screening. We use ongoing and study-specific media campaigns to enhance our growing network of volunteers.

    Our subjects are recruited primarily come from the San Antonio, Austin, Houston and Dallas markets.

    Volunteer database:
    • 21,000+ Healthy
    • 4,225+ Diabetics (Type 1 and Type 2)
    • 1,660+ Postmenopausal Females
    • 6,500 Age 55+
    San Antonio, TX market:
    • Metropolitan population of 2.2 million
    • 24th largest metro area in the U.S.
    • 7the largest Hispanic market in the U.S.
    • 21 area colleges/universities
    • 3 Military Bases - San Antonio is known as “Military City USA”
    • 87% Caucasian, 6% African American, 7% other, 63% Hispanic


      San Antonio Clinical Research Unit
      ICON Early Phase Services
      8307 Gault Lane
      San Antonio, TX 78209 USA

      Office Number: 210-283-4500

      Recruitment: 210-225-5437 or 877-848-7425


      Contact Center

      If you are interested in contacting this center to discuss clinical trials, please complete and send the email form below. A representative from the research center will then follow up with you.