2022
The Phase II MutHER Study of Neratinib Alone and in Combination with Fulvestrant in HER2-Mutated, Non-amplified Metastatic Breast CancerNeratinib and Fulvestrant in HER2-Mutated Breast Cancer
X. C, Luo J, Freedman RA, Pluard TJ, Nangia JR, Lu J, Valdez-Albini F, Cobleigh M, Jones JM, Lin NU, Winer EP, Marcom PK, Thomas S, Anderson J, Haas B, Bucheit L, Bryce R, Lalani AS, Carey LA, Goetz MP, Gao F, Kimmick G, Pegram MD, Ellis MJ, Bose R. The Phase II MutHER Study of Neratinib Alone and in Combination with Fulvestrant in HER2-Mutated, Non-amplified Metastatic Breast CancerNeratinib and Fulvestrant in HER2-Mutated Breast Cancer. Clinical Cancer Research 2022, 28: 1258-1267. PMID: 35046057, DOI: 10.1158/1078-0432.ccr-21-3418.Peer-Reviewed Original ResearchConceptsMetastatic breast cancerBreast cancerER cohortEstrogen receptor-positive breast cancerReceptor-positive breast cancerClinical benefit rateDual HER2 blockadePhase II trialEfficacy of neratinibHER2 blockadeNeratinib monotherapyStable diseaseII trialHER2 mutationsLobular histologyPartial responseEndocrine resistanceBenefit ratePatientsFurther evaluationCancerFulvestrantHER2NeratinibProgression
2018
Acquired HER2 mutations in ER+ metastatic breast cancer confer resistance to estrogen receptor–directed therapies
Nayar U, Cohen O, Kapstad C, Cuoco MS, Waks AG, Wander SA, Painter C, Freeman S, Persky NS, Marini L, Helvie K, Oliver N, Rozenblatt-Rosen O, Ma CX, Regev A, Winer EP, Lin NU, Wagle N. Acquired HER2 mutations in ER+ metastatic breast cancer confer resistance to estrogen receptor–directed therapies. Nature Genetics 2018, 51: 207-216. PMID: 30531871, DOI: 10.1038/s41588-018-0287-5.Peer-Reviewed Original ResearchConceptsHER2 mutationsEstrogen receptorBreast cancerClinical resistance mechanismsMainstay of treatmentMetastatic breast cancerReceptor-directed therapyCDK6 inhibitor palbociclibPre-existing mutationsMetastatic settingEstrogen independenceInhibitor palbociclibPrimary tumorMetastatic biopsiesInhibitor neratinibTherapyPatientsER mutationsCancerTamoxifenResistance mechanismsDistinct mechanismsMutationsConfer resistanceBiopsy