Dr. Rhodes founded Drug Delivery Experts in 2014 after 4 years of consulting and 20 years in pharmaceutical, biotechnology, and drug delivery companies, where he held both technical and executive leadership roles. He has extensive experience translating molecular therapeutics, formulation, delivery, and device programs from late stage research into clinical development.

He volunteers as a leadership mentor to start up companies, students, and academic programs, through the San Diego Entrepreneurs Exchange, Connect, the UCSD Von Leibig Center for Entrepreneurship, the UCSD Bioengineering Industrial Advisory Board, and lectures in the Skaggs School of Pharmacy and Pharmaceutical Sciences, in addition to serving as President and Member of the Board of Directors for the Boulder Peptide Society.

Chris lives in San Diego with his wife and UCLA graduate school classmate, Dr. Sharon Lee Rhodes, and together they enjoy traveling to visit their four children.

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David Litzinger, Ph.D.
Vice President, R&D

Dr. Litzinger joined Drug Delivery Experts as the Vice President of R&D in April of 2015.

Dr. Litzinger has over 22 years of drug discovery and development experience, including technical and leadership roles in CMC and other functional areas in pharmaceutical and biotech companies. He has worked with several drug molecular platforms including protein, peptides, small molecules and oligonucleotides, and with various formulations ranging from simple aqueous to complex sustained release formulations.

Dr. Litzinger has developed peptide and protein stability analogs, conjugates, fusion proteins, and targeted carrier systems. As a consultant, Dr. Litzinger provides strategic and technical drug development guidance for established companies as well as startups, and is involved in facilitating the transition of promising technologies from research institutions to development partners and new companies.

David lives in San Diego with his wife Karen, and enjoys hiking, traveling and volunteer work.


Robert Jennings, Ph.D.
Chief Operating Officer

Dr. Jennings joined Drug Delivery Experts as Chief Operating Officer in May of 2017.

Dr. Jennings has over 25 years of pharmaceutical development experience with increasing levels of management responsibilities. He was previously site head for two startup pharmaceutical companies tasked with developing a proprietary sustained release platform technology. Dr. Jennings managed site business operations, contributed to product development strategies, and developed project budgets. As a CMC and project leader at several biotech companies his responsibilities included formulation research, technology development, process development, manufacturing, scale-up, quality systems, and intellectual property. His experience includes small molecule, peptide, and protein therapeutics and he has written regulatory submissions for INDs and NDAs. Dr. Jennings has authored over 100 technical reports with contributions to many more. Rob is trained in pharmaceutics and is a registered pharmacist. He is a guest lecturer at the UCSD Skaggs School of Pharmacy and Pharmaceutical Sciences.

Rob and his wife, Kathy, live in San Diego. They are active in their church and volunteer with the Girl Scouts. They enjoy outdoor activities, local events, and spending time with their children and grandchildren.