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First Posted 2021-11-24 Trial status Active, not recruiting Sponsor Seagen, a wholly owned subsidiary of Pfizer Abstract Presentation Her2climb-05: a randomized, double-blind, phase 3 study of tucatinib versus placebo in combination with trastuzumab and pertuzumab as maintenance therapy for her2+ metastatic breast cancer December 10, 2025 Click here for details Peer-reviewed journal publication HER2CLIMB-05: A Phase III Study of Tucatinib Versus Placebo in Combination With Tr

First Posted 2015-11-25 Trial status Completed Sponsor Seagen Inc. Abstract Presentation Phase III HER2CLIMB Trial Yields Positive Data in Patients With HER2-Positive Metastatic Breast Cancer and Brain Metastasis Late-breaking oral presentation, San Antonio Breast Cancer Symposium 2019; results subsequently published in NEJM (2020). Click here for details Peer-reviewed journal publication Tucatinib, Trastuzumab, and Capecitabine for HER2-Positive Metastatic Breast Cancer Dece