The Food and Drug Administration recently announced a plan to phase out animal-testing requirements for drug assessments based on advances in new approach methodologies, including human organ-on-a-chip (Organ Chip) microfluidic culture technology. Although Organ Chips are being explored in many pharmaceutical laboratories, they have not yet been integrated into drug-development pipelines. Here, I review challenges that must be overcome to bridge this gap and new opportunities that will emerge. I also discuss additional work that will be required for Organ Chips to reduce animal use, lower drug costs, meet regulatory goals, and improve clinical success in the future.
Cell Stem Cell.
2026. doi: 10.1016/j.stem.2025.12.022
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