https://www.pharmalive.com/wp-content/uploads/2022/04/ReutersHealthFDAsignApril62022.jpg8001200Reuters Healthhttps://www.pharmalive.com/wp-content/uploads/2020/01/Pharmalive_4c-300x37.pngReuters Health2022-12-01 18:30:292022-12-02 10:21:20U.S. FDA approves Rigel Pharma’s treatment for a type of leukemia