Welcome to the latest installment of Arnold & Porter’s Virtual and Digital Health Digest. This digest covers key virtual and digital health regulatory and public policy developments during January and early February 2025 from the United States, United Kingdom, and European Union.

In this issue, we discuss some useful international guidance documents from the International Medical Device Regulators Forum (IMDRF). These include Guiding Principles on Good Machine Learning Practices (GMLP) that build on the principles previously set out by the U.S. Food and Drug Administration (FDA), UK Medicines and Healthcare products Regulatory Agency (MHRA), and Health Canada, and guidance on characterization and risks of medical device software. The continued development of international guidance in this area highlights the importance of coordination between regulatory authorities and standardized guidance for these products. There have also been important developments in ongoing litigation relating to digital technologies, although whether these developments provide clear guidance to manufacturers remains to be seen.