– Exploratory Analyses from the Pivotal HER2CLIMB Trial Show Patients with Stable and Active Brain Metastases Treated with a TUKYSA Regimen Maintained a Survival Benefit After Additional 15.6 Months of Follow-Up –BOTHELL, Wash.--(BUSINESS WIRE)--#SABCS2021--Seagen Inc. (Nasdaq:SGEN) today announced the presentation...