Japan conducts world's 1st stem cell therapy for Parkinson's

Japan has reported the world's first approved stem cell-based treatment for Parkinson's disease, with a patient receiving laboratory-grown dopamine-producing cells in the brain. Separately, a clinical trial involving seven patients aged 50 to 69 found symptom improvements in four participants over two years, with no major adverse effects reported. Sumitomo Pharma developed the treatment.