Our Team

The Minds Behind Enzerna


Joseph Ruiz, PhD

Dr. Joseph Ruiz, President, has over 30 years of experience as an investigator in academia and industry in the areas of embryonic and adult stem cell biology, genome engineering, hepatic cell biology, cell transplantation, and histotechnology. He obtained his PhD at UC San Diego and completed post-doctoral work at Columbia and Harvard Universities. Dr. Ruiz held faculty positions at the Indiana University School of Medicine and at the Wistar Institute and has directed scientific development at several biotech startup companies. In particular, Dr. Ruiz established and directed stem cell and genome engineering research programs at several biotech startup ventures in addition to his efforts at Enzerna (Vesta Therapeutics, Transposagen Biopharmaceuticals and Epigenos Biosciences).   Dr. Ruiz also holds an adjunct faculty appointment in the Department of Biology at UNC-Chapel Hill where he is active in mentoring undergraduate and graduate students interested in pursuing careers in the biotech sector.  

Portrait of Joseph Ruiz, PhD, President of Enzerna Biosciences Inc.


Peter Sazani, PhD

Dr Sazani brings 16 years research and development leadership experience, and has a passion for tackling rare genetic diseases. Prior to joining Enzerna, Dr Sazani was the head of patient advocacy and medical affairs at Marathon Pharmaceuticals (Now PTC Therapeutics), helping guide the Duchenne community through the approval of Emflaza (deflazacort). Prior to Marathon, Dr Sazani was Executive Director of Pre-clinical development and Medical Affairs at Sarepta Therapeutics. While there, Dr Sazani conducted and oversaw the research, and subsequently all pre-clinical, clinical pharmacology and medical affairs activities related to Exondys (eteplirsen). Dr Sazani was also heavily involved in negotiations with FDA regarding eteplirsen. Dr Sazani joined Sarepta through the 2007 acquisition of Ercole Biotech, a company founded to commercialize Exon Skipping technology. Prior to that, Dr Sazani was a post doctoral fellow at Harvard Medical School; he received his PhD in Pharmacology from The University of North Carolina at Chapel Hill.

Portrait of Peter Sazani, PhD, Chief Development Officer of Enzerna Biosciences Inc.
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