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Of Mice, Men, and Medicine

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Photo of someone holding the lab on a chip device next to a photo of two laboratory mice

Will a chip challenge the mouse?
Source: Wyss Institute and Bill Branson, NIH

The humble laboratory mouse has taught us a phenomenal amount about embryonic development, disease, and evolution. And, for decades, the pharmaceutical industry has relied on these critters to test the safety and efficacy of new drug candidates. If it works in mice, so we thought, it should work in humans. But when it comes to molecules designed to target a sepsis-like condition, 150 drugs that successfully treated this condition in mice later failed in human clinical trials—a heartbreaking loss of decades of research and billions of dollars. A new NIH-funded study [1] reveals why.