Zelos Zhu

Senior Developer

Zelos Zhu is an R package developer focused on modernizing statistical programming for clinical trials. He is a core contributor to open-source pharmaverse tools, including admiral, with additional experience across other popular packages such as gtsummary, cards, and cardx. His work centers on reproducible clinical trial workflows, CDISC SDTM/ADaM standards, R package development, and scalable reporting infrastructure. Zelos has also worked extensively with the gsm ecosystem, a suite of packages that provide the analytical foundation for a standardized Risk Based Quality Monitoring (RBQM) framework for clinical trials.

Articles and Resources by Zelos

Blog

A Simple Open-Source Analytics Pipeline for Clinical R Teams: Introducing {workr} 

May 5, 2026

I had the opportunity to present alongside Jeremy Wildfire of Gilead Sciences, where our presentation earned Best in Stream honors. Our presentation focused on something...