Charles Theuer, MD, PhD
Chief Medical Officer
Halozyme
Dr Charles Theuer has been Chief Medical Officer at Halozyme since 2024 and is responsible
for providing leadership and guidance to Halozyme and its partners/collaborators in
subcutaneous drug development with ENHANZE® technology and auto-injectors. Dr Theuer
leads clinical development, regulatory affairs, drug safety, medical affairs and bioanalytical and
non-clinical sciences strategy and operations, including interactions with regulatory authorities.
Before joining Halozyme, Dr Theuer served as Chief Executive Officer, Chief Medical Officer,
and Director of TRACON Pharmaceuticals, where he worked to transform outcomes for cancer
patients and optimize clinical development operations. His career includes senior medical
leadership positions at TargeGen Inc. where, as Chief Medical Officer, he directed the
development of Inrebic®, Pfizer where he led the clinical development of Sutent® in renal cell
carcinoma and IDEC Pharmaceuticals where he oversaw clinical trials of Rituxan® and
Zevalin®. Charles practiced as a board-certified general surgeon for more than 10 years.
Dr Theuer earned his B.S. in Molecular Biology from the Massachusetts Institute of Technology
and his M.D. from the University of California, San Francisco. He received his PhD in
epidemiology from the University of California, Irvine, and completed his general surgery
residency at Harbor-UCLA Medical Center.