Dr. Selam, Dr. Van and Dr. Cullen are committed to the research of protocols full-time and are directly involved in the performing and documentation of study visits.

They are supported by a team of study coordinators, a budget/regulatory manager and a marketing  team. 

Dr. Jean-Louis Selam


Dr Selam received his undergraduate education and medical doctorate in France, University of Montpellier. He has been an Internal Medicine specialist in Endocrinology in France since 1979 and licensed in California since 1987. He has worked as an associate professor at University of California Irvine Diabetes Research Program 1986-90 then as an associate professor at University Medical School of Paris, dept of Diabetology 1990-2003. He has been appointed in 2005 as Visiting Professor by the USC School of Medicine, Los Angeles. Dr. Selam has a 40+ year experience as a Principal Investigator with an experience of more than 250  studies, the majority in the fields of insulin, oral medications, neuropathy and obesity.


Dr Selam is the author of 120+ peer-reviewed publications, 130+ invited articles or chapters in books, and 350+ conference presentations, the majority in the field of new techniques of insulin therapy including intensive insulin and implantable insulin pumps, which he is considered as a world leader. He also has performed pioneer work on intraperitoneal insulin and insulin-induced remissions. 

Dr. Joanna Van


Dr Van received her undergraduate degree from University of California, San Diego in Biological Sciences. During and after her undergraduate education she authored and co-authored numerous research publications in the field of Diabetes Medicine. After working in the industry she returned to pursue medical school and completed her residency training in Family Medicine at Arrowhead County Regional Medical Center (a UCI Affiliate Program). Upon graduation, she began working at St Jude Heritage Medical Group. During her tenure with St Jude, Dr Van was nominated as one of Orange County’s Physicians of Excellence by Orange Coast Magazine (January 2013 issue).


Since 2007, Dr Van has served as a consultant for the University Clinical Investigators and Clinical Trial Investigators. She has been the primary and sub-investigator for multiple diabetes studies. 

She admits that her job satisfaction comes primarily from her passion for her patient’s well-being and her personal commitment to providing quality research.

Dr. Amy Cullen

Dr. Cullen completed her Family Medicine Residency at Arrowhead Regional Medical Center, and became Board Certified in Family Medicine in 2004. She graduated from St. George’s University School of Medicine in 2000, has a Master’s Degree from the Boston University School of Medicine and a Bachelor’s Degree from the University of California at Irvine. Her medical education has allowed her to train in France, the Caribbean, and England. She started her career in clinical trials as a Clinical Research Coordinator in 1994, and first became a Physician Investigator in 2012.


She joined Clinical Trial Investigators and University Clinical Investigators in 2018.  In addition to performing clinical trials she performs house calls for home-bound senior citizens. Her clinical experience includes Family Medicine, Geriatrics, Hospice and Palliative Medicine, Urgent Care and Occupational Medicine.


For fun she enjoys traveling, painting, cooking, and spending time outdoors. She first knew she wanted to be a doctor when she was very young, following in the footsteps of her grandfather. 



© 1974 University Clinical Investigators, inc.

University Clinical Investigators,Inc.


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