Who We Are

We are committed to our vision of transforming lives and making hope a reality for patients with cancer.

Daniel J. O’Connor
Chief Executive Officer & Director

Mr. O’Connor is the Chief Executive Officer of OncoSec Medical, Inc., a biopharmaceutical company developing intratumoral cancer immunotherapies.

Most recently, he served as President and Chief Executive Officer of Advaxis Immunotherapies, Mr. O’Connor successfully turned around the company, raising more than $250 million in funding and transforming it into a patient-focused, leading cancer immunotherapy company.  He was also instrumental in establishing major partnerships with companies that include Amgen Inc., Merck & Co. and Bristol Myers Squibb. In addition, under his leadership, the company advanced four new cancer immunotherapy drug candidates into clinical trials, as well as several PD-1 combination clinical studies with Keytruda® and Opdivo®.  Previously, Mr. O’Connor was Senior Vice President for ImClone Systems where he supported the clinical development, launch, and commercialization of ERBITUX®, and the sale of the company to Eli Lilly in 2008. Mr. O’Connor served as General Counsel at PharmaNet (inventive Health) and was part of the senior leadership team that grew the company from a start-up contract research organization into a leader in clinical research.

Mr. O’Connor is a 1995 graduate of the Penn State University’s Dickinson School of Law in Carlisle, Pennsylvania and currently serves as an Entrepreneur Trusted Advisor to its Dean. He graduated from the United States Marines Corps Officer Candidate School in 1988 and was commissioned as an officer in the U.S. Marines, attaining the rank of Captain while serving in Saudi Arabia during Operation Desert Shield. Mr. O’Connor is currently the Vice Chairman of BioNJ and was a former New Jersey criminal prosecutor.

Christopher G. Twitty, PhD
Chief Scientific Officer

Dr. Twitty brings over 20 years of experience in tumor immunology and cancer immunotherapy, including the discovery and development of OncoSec’s leading clinical immune monitoring and biomarker program.

Dr. Twitty earned his PhD from Oregon Health & Science University where his work was focused on novel tumor vaccine strategies and was awarded an American Cancer Society fellowship training grant for his post-doctoral studies in Dr. Bernard Fox’s Molecular Tumor Immunology Laboratory. After developing a preclinical and clinical immunological program focused on glioblastoma at Tocagen, Dr. Twitty joined Oncosec. Previously, Dr. Twitty held scientific positions of increasing responsibility at Bayer Pharmaceuticals and Cell Genesys, Inc.

Richard B. Slansky
Chief Financial Officer

Mr. Slanksy brings more than 25 years of operational and financial leadership to OncoSec with a breadth of experience in both public and private life science, healthcare, and technology organizations.

Prior to joining OncoSec, Richard was a financial and operational consultant for several companies. He was also the CFO of GenMark Diagnostics, Inc., an early stage molecular diagnostic company focused on infectious disease tests. He implemented strong financial controls, led the financial and due diligence teams that successfully raised over $130 million in the public market, directed cross functional changes to improve performance, and developed a new state-of-the-art manufacturing facility. Previously, Richard held presidential, financial, and operating positions at companies including: Digirad, SpaceDev, and Calbiochem.

Mr. Slanksy earned a bachelor’s of science degree in economics with a concentration in decision sciences from the University of Pennsylvania’s Wharton School of Business and a master’s degree from the University of Arizona’s Eller Graduate School of Management in business administration, with a concentration in finance and accounting.

Sharron Gargosky, PhD
Chief Clinical and Regulatory Officer

Dr. Gargosky has over 20 years of experience in clinical development and operations in the field of pharmaceutical and biologic development having managed global programs from early research phase through the U.S. Food & Drug Administration (FDA) approval process.

Recently, Dr. Gargosky was the Chief Technical and Operations Officer at Prima Biomed, Ltd., where she led the immuno-oncology program in ovarian and pancreatic cancer globally overseeing international manufacturing, regulatory approvals, and clinical execution. Prior to Prima Biomed, Dr. Gargosky served in positions of increasing clinical and scientific responsibility at biopharmaceutical companies including Pharmacia, Medicis, and Hyperion Therapeutics. In her career, she was involved in small molecule development attaining orphan drug approvals in rare diseases. Dr. Gargosky received her Ph.D. from the University of Adelaide, Australia and completed her postdoctoral fellowship at Stanford University.