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Pfizer Oncology
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The safety and efficacy of this agent(s), or use in this setting, has not been established or is subject to confirmation. For an agent(s) whose safety and efficacy has not been established or confirmed, future regulatory approval or commercial availability is not guaranteed.

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Important Notice: The information provided here relates to investigational therapies. The safety and efficacy of these investigational therapies has not been proven.

Poster

Tucatinib (TUC) combined with trastuzumab and pertuzumab (HP) as first-line (1L) maintenance therapy for HER2+ metastatic breast cancer (MBC): an in-depth safety analysis of HER2CLIMB-05

Dieras V, Curigliano G, Martin M, Lerebours F, Tsurutani J, Savard MF, Jerzak KJ, Hu X, Pimentel L, O'Sullivan CC, Tokunaga E, Okines A, Huang CS, Sohn J, Silva EC, Mueller V, Kaur M, Viala H, Yang S, Hamilton E

Tucatinib | June 1, 2026 | ASCO 2026

C4251007 | NCT05132582

Presentation

Efficacy and safety of tucatinib (TUC) vs placebo (PBO) combined with trastuzumab and pertuzumab (HP) as maintenance therapy for HER2+ metastatic breast cancer by stratified subgroups

Hamilton E, Curigliano G, Martin M, Lerebours F,Tsurutani J, Savard MF, Hu X, Pimentel L, O'Sullivan CC, Tokunaga E, Okines A, Huang CS, Jacot W, Sohn J, Mueller V, Viala H, Tan S,Feng W, Shen Q, Dieras V

Tucatinib | June 1, 2026 | ASCO 2026

C4251007 | NCT05132582

Presentation

Addition of tucatinib to trastuzumab emtansine (T-DM1) in patients with previously treated HER2+ locally advanced/metastatic breast cancer (LA/MBC): updated efficacy analysis from the HER2CLIMB-02 trial

Curigliano G, Borges V, O’Shaughnessy J, Okines A, Tolaney SM, Saura C, Wolff AC, Loi S, Masuda N, Vahdat L, Xu B, Chiu D, Xie D, Abbasi N, Olu K, Hurvitz SA

Tucatinib | May 8, 2026 | ESMO BC 2026

C4251001 | NCT03975647

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

Hamilton E, Curigliano G, Martin M, Lerebours F, Tsurutani J, Savard M, Jerzak K, Hu X, Martins de Aquino Pimentel L, O'Sullivan C, Tokunaga E, Okines A, Huang C, Jacot W, Sohn J, Cronemberger Silva E, Mueller V, Yang S, Granata G, Santarpia L, Dieras V

Tucatinib | December 10, 2025 | SABCS 2025

C4251007 | NCT05132582

Presentation

Tucatinib and Trastuzumab for Patients With Previously Treated, HER2-Altered Solid Tumors (SGNTUC-019): A Phase 2 Basket Study

Nakamura Y, Bekaii-Saab T, Hamilton E, Hayashi H, Mizuno N, Monk BJ, Nguyen D, Okines A, O’Malley DM, Pohlmann PR, Pothuri B, Reck M, Sudo K, Sunakawa Y, Takahashi S, Yu EY, Drees A, Tan S, Stinchcombe TE

Tucatinib | October 24, 2024 | EAN 2024

C4251003 | NCT04579380