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Japan approves stem-cell treatment for Parkinson's in world first

Japan conditionally approved Amchepry and ReHeart, the first commercial iPS cell therapies, with safety and efficacy monitoring required over seven years.

  • On Friday, March 6, 2026, Japan's Health, Labor and Welfare Ministry approved two iPS-cell therapies, including Sumitomo Pharma's Amchepry, for Parkinson's disease.
  • IPS cells can transform into many cell types and stem from Nobel laureate Shinya Yamanaka's research, enabling therapies without embryos under provisional licenses requiring seven-year patient surveys.
  • A Kyoto University-led trial treated seven Parkinson's patients with five million or 10 million cells implanted per patient, monitoring them for two years with no major adverse effects and four showing symptom improvements.
  • Companies aim to start selling between summer and autumn this year, and following national deliberations, pricing and public health insurance coverage will be decided.
  • Worldwide about 10 million people have Parkinson's, and Sumitomo Pharma's Amchepry targets Parkinson's while Cuorips Inc.'s ReHeart uses donor iPS cells and cardiomyocyte sheets to treat severe ischemic cardiomyopathy.
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Japan has approved the world's first iPS cell therapy based on Nobel Prize-winning technology. Japan has opened the way for commercialization of regenerative medicine for heart failure and Parkinson's disease. The Japanese government has approved the world's first regenerative medicine treatment using induced pluripotent stem cells (iPS cells). The Japanese Ministry of Health, Labor and Welfare announced on the 6th that it has approved a treatme…

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Japan approves stem cell treatments for Parkinson's and heart failure, soon to be available, marking a breakthrough in regenerative medicine

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Kyodo News+ broke the news in Japan on Friday, March 6, 2026.
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