Proactive vs. Reactive: How the SIUU Guidance is Reshaping Medical Affairs Strategy with Josh Bryson

The FDA finalized its guidance on Scientific Information on Unapproved Uses (SIUU) in January 2025, giving pharmaceutical and biotech companies a framework for proactive off-label communication with healthcare providers. Yet many medical affairs organizations are still navigating what it means in practice. In this episode, Peg Crowley-Nowick, PhD, MBA talks with Josh Bryson, PhD, Head of U.S. Medical Affairs and Evidence Generation at Argenx, about the real-world implications for medical affairs strategy. Josh and Peg examine what the FDA guidance permits, the data integrity and publication requirements that must be in place, and how the shift from reactive to proactive scientific exchange changes HCP engagement. They also discuss how SIUU raises the bar for evidence generation, driving companies to think more deliberately about data quality, study design, and publication strategy in order to meet the criteria the guidance requires. Medical Science Liaisons and Medical Affairs leaders will find this conversation directly relevant to how they approach both field engagement and evidence planning. A practical conversation for medical affairs professionals looking to understand how the FDA off-label communication guidance reshapes communications strategy and the evidence needed to support it.