Surprising SanBio/Sumitomo Stroke Stumble Slams Stocks

Mesenchymal stem cell-based therapy's missed Phase IIb endpoint in stroke prompts both an assessment of future development plans and a precipitous fall in developers' stocks.

Memory loss and brain aging due to dementia and alzheimer's disease as a medical icon of a group of color changing autumn fall trees shaped as a human head losing leaves on a white background.
Phase II Failure For Novel Stroke Therapy • Source: Shutterstock

Failed clinical trials may be routine in the pharma world, but one such event has had a broad impact in Japan this week, amplified by recent meteoric rises in the product developer's stock and positive local sentiment around cell-based therapies.

An announcement by Tokyo-based venture SanBio Co. Ltd

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