Developments SpringWorks Therapeutics doses first patient in Phase 2b mirdametinib trial SpringWorks Therapeutics (NASDAQ:SWTX) dosed the first patient in its Phase 2b trial evaluating mirdametinib in children and adults with neurofibromatosis type 1 (NF1)-associated plexiform neurofibromas (PN). NF1 is a... October 24, 2019