

DESTINY-Breast09: NCT04784715: Phase 3: Trastuzumab Deruxtecan (T-DXd) With or Without Pertuzumab Versus Taxane, Trastuzumab and Pertuzumab in HER2-positive Metastatic Breast Cancer 1L
First Posted 2020-10-19 Trial status Active, not recruiting Sponsor AstraZeneca Abstract Presentation Meeting Abstract: 2025 ASCO Annual Meeting II Free access Breast Cancer—Metastatic June 04, 2025 Trastuzumab deruxtecan (T-DXd) + pertuzumab (P) vs taxane + trastuzumab + pertuzumab (THP) for first-line (1L) treatment of patients (pts) with human epidermal growth factor receptor 2–positive (HER2+) advanced/metastatic breast cancer (a/mBC): Interim results from DESTINY-Breast0
Dec 31, 2025


HER2CLIMB-05: NCT05132582: Phase 3: Tucatinib or Placebo With Trastuzumab and Pertuzumab for Metastatic HER2+ Breast Cancer
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
Dec 15, 2025