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  • Nation’s Leading Researchers in Treatment
  • Over 40 Years of Clinical Trials Experience
  • Specialists in Memory Testing and Alzheimer’s Related Research
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Pacific Research Network (PRN)

Pacific Research Network (PRN) is a Southern California clinical research facility that specializes in examining new, investigational medications for the treatment of a variety of diseases. With clinic locations in San Diego and Rancho Bernardo, Pacific Research Network has been a leader in the field of clinical research for over 35 years and is dedicated to providing quality research for both volunteers and the pharmaceutical industry. Stephen G. Thein, PhD, the director and founder of Pacific Research Network, has conducted over 250 clinical trials and is one of the nation’s leading researchers in memory and Alzheimer’s disease. Dr. Thein has participated in the testing of several new medications to treat Alzheimer’s disease, memory loss, anxiety, migraine, sleep disorders, sexual dysfunction, smoking, social anxiety, and weight loss.


Current studies

Here are some of the current studies for which we are seeking volunteers.  Please call with any questions or to inquire about upcoming studies:

  • Alzheimer’s Disease
  • Mild Cognitive Impairment
  • Mulitple Sclerosis (MS)
  • Parkinson's Disease: Excessive Daytime Sleepiness
  • Alzheimer's Disease: Insomnia or 'Sun-Downing' Symptoms
  • Memory Related Issues: No Cost Pet Scan and Evaluation
  • Sleep Disorders (Insomnia, Narcolepsy, Restless Leg Syndrome, etc.)

Patient Safety Monitoring

All of our clinical studies are conducted in strict accordance with protocols that have been reviewed by the FDA along with an Institutional Review Board representing the public interest.  Once a study has begun, its’ progress is closely monitored by each of these agencies.   Participants are evaluated frequently throughout the course of the study to document effectiveness and safety of the medication.  Participants may withdraw from the study at any time, or they may be withdrawn if the investigator feels that it is in their best interest to do so.       NMSD-logo  

About Clinical Trials

Before any new medications are approved, they must go through a series of lengthy and rigorous tests.  Each year billions of dollars and millions of man hours are spent researching new methods for the diagnosis and treatment of illnesses and diseases.  A new medication must not only be shown to be safe and effective, but in many cases it must also demonstrate a superior benefit when compared to similarly approved drugs.  Pacific Research Network is proud to be an industry leader in this field.       MS_Society_Logo