Your Trusted Clinical Research Facility

TOPAZ Clinical Research is a new multidisciplinary research site in Apopka, FL.
Our site is located within Orange County, which puts us close to a vast demographic community, including pediatric, adult, and geriatric potential subjects.

We are the only stand-alone research site established in the area.
In addition, we have access to a wide variety of physicians and health practitioners who are interested in clinical studies.

Mission Statement

Our mission is to help improve the lives of the people within our community through research and the development of future medications. We bring this goal to fruition with integrity and ethics.

Site Facility

Our center is conveniently located in the heart of Apopka, FL, near hospitals, laboratories, and imaging facilities, which can be outsourced as needed with easily accessible public transportation. 

The site has 1-2 patient exam rooms with gynecologic examination capabilities, waiting area, ample parking, on-site laboratory, temperature-controlled and double-locked IP storage, alarm system, and security cameras throughout the site. Locked cabinets are used for subject and regulatory documents. Monitor space with high-speed wireless internet and copier access. 

Equipment: Centrifuges, ECG machine, Spirometer, refrigerator, -20 and -70 degree freezers, weight scale, dry ice and on-site lumbar puntures.

Contact site for demographics information.

Topaz Building

Therapeutic Areas

Anti-aging Therapy, Cardiology/Vascular Diseases, Dermatology, Endocrinology, Family Medicine, Gastroenterology, Geriatric, Healthy Volunteers, Immunology, Infections and Infectious Diseases, Internal Medicine, Musculoskeletal, Mental Health, Neurology, Nutrition and Weight Loss, Obstetrics/Gynecology, Women’s Health, Orthopedics, Pediatrics, Pharmacology/Toxicology, Podiatry, Psychiatry/Psychology, Pulmonary/Respiratory Diseases, Sexual Disorders, Urology, Women’s Health, Vaccines

Additional Information

  • Conveniently located on 436/Semoran Blvd, near shops, mall, and restaurants. 
  • Orlando International Airport is 45 mins - 1 hr from site.
  • Sanford international Airport is 35-45 mins from site. 
  • Holiday Inn Express and a Hampton by Hilton are located 0.5 miles from site.
  • Extra Space Storage located 0.3 miles from site.

Site Contacts

Marjorie Guzman, BHS – Executive Director

Ms. Guzman has more than 16 years of experience in clinical research and has more than 12 years as a Clinical Research Associate (CRA) in various therapeutic areas. She is also experienced as a Study Coordinator, Rater and Regulatory Analyst.


Karla Francisco, BA – Director of Site Operations/Business Development

Mrs. Francisco has more than 2 years of research experience in various roles within the organization. She is also experienced as a Budgets and Contracts contact.



TOPAZ Clinical Research has an experienced and talented staff on site. Our lead PI specializes in Emergency Medicine, has over six years in Clinical Research, and has completed over 60 different studies.  TOPAZ Clinical Research’s team also includes a site Pediatrician, a Forensic/General Psychiatrist, and a Doctor of Dental Surgery. All of our Physicians have vast clinical experience dealing with the most extreme cases. In addition, we have an extensive database of experienced Medical Physicians with a broad range of specialties that can fill the need of any therapeutic area.  Our team also includes an experienced Clinical Research Physician Assistant, NICU Nurse, Study Coordinators, Certified Raters, Regulatory specialist, Business Development, and Patient Recruitment Coordinators. We are dedicated to providing the best and most informative experience for all visitors of TOPAZ Clinical Research.

For Sponsors: Credentials provided upon request. Email

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