About Syrentis | Santa Ana, CA - Syrentis Clinical Research
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We are a multi-specialty clinical research institute which conducts clinical trials with an emphasis in CNS disorders (Alzheimer's Dementia, Major Depressive Disorder, Bipolar Disorder, Anxiety Disorder, Insomnia) as well as Diabetes Mellitus, COPD, Peripheral Neuropathy, Cardiovascular Disease, Fibromyalgia, Hypercholesterolemia, Hypertension, Chronic Pain, Endocrine disorders, Metabolic Syndrome, Claudication, PVD, Birth Control, Dermatologic disorders, and new drug delivery systems including vaccines, inhalers, injections, and topical patch systems.


After conducting over 600 Phase I-IV clinical trials, Syrentis Clinical Research has contributed to the development of treatments for many medical conditions.


Our professional, highly qualified team is dedicated to caring and ethical research. Call 714-542-3008.

Our team at Syrentis Clinical Research consists of a dedicated site manager, a regulator/quality assurance manager, PhD Psychologists with extensive rater training, physicians with over 40 years of combined experience as principal/sub-investigator, multiple clinical coordinators, clinical pharmacist, and a recruitment/marketing team.

Stop in to meet our highly qualified team.

Professional staff

Our owner and principal investigator, John Gregory Duffy, MD, leads our clinical research team.  His mission is to contribute to the development of new treatments in a compassionate and safe environment.

Experienced principal investigator

A multi-specialty site

Over 40 years of experience in health care

If you are interested in joining a clinical trial click here