How A 60-Year-Old Drug Developer Built A $4.4 Billion Biotech Treating ‘Butterfly Skin Disease’

Amy Feldman, Forbes Staff, Amy Feldman, Forbes Staff https://www.forbes.com/sites/amyfeldman/

Longtime drug developer Suma Krishnan was 51 when she cofounded Krystal Biotech. Now the company has one gene therapy on the market and more in the works.