Antitumor Activity and Safety of Trastuzumab Deruxtecan in Patients With HER2-Low–Expressing Advanced Breast Cancer: Results From a Phase Ib Study
Modi S, Park H, Murthy RK, Iwata H, Tamura K, Tsurutani J, Moreno-Aspitia A, Doi T, Sagara Y, Redfern C, Krop IE, Lee C, Fujisaki Y, Sugihara M, Zhang L, Shahidi J, Takahashi S. Antitumor Activity and Safety of Trastuzumab Deruxtecan in Patients With HER2-Low–Expressing Advanced Breast Cancer: Results From a Phase Ib Study. Journal Of Clinical Oncology 2020, 38: 1887-1896. PMID: 32058843, PMCID: PMC7280051, DOI: 10.1200/jco.19.02318.Peer-Reviewed Original ResearchConceptsInterstitial lung diseaseHER2-low breast cancerT-DXdBreast cancerTrastuzumab deruxtecanAntitumor activityConfirmed objective response rateTopoisomerase I inhibitor payloadTreatment-emergent adverse eventsHuman epidermal growth factor receptor 2Epidermal growth factor receptor 2Breast cancer refractoryIndependent adjudication committeeObjective response ratePhase Ib studyAdvanced breast cancerGrowth factor receptor 2Preliminary antitumor activityIndependent central reviewWithdrawal of consentFactor receptor 2Cancer refractoryEligible patientsMetastatic HER2Unacceptable toxicity