Gefitinib or Placebo in Combination with Tamoxifen in Patients with Hormone Receptor–Positive Metastatic Breast Cancer: A Randomized Phase II Study
Osborne CK, Neven P, Dirix LY, Mackey JR, Robert J, Underhill C, Schiff R, Gutierrez C, Migliaccio I, Anagnostou VK, Rimm DL, Magill P, Sellers M. Gefitinib or Placebo in Combination with Tamoxifen in Patients with Hormone Receptor–Positive Metastatic Breast Cancer: A Randomized Phase II Study. Clinical Cancer Research 2011, 17: 1147-1159. PMID: 21220480, PMCID: PMC3074404, DOI: 10.1158/1078-0432.ccr-10-1869.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAged, 80 and overAntineoplastic Agents, HormonalAntineoplastic Combined Chemotherapy ProtocolsBiomarkers, TumorBreast NeoplasmsDrug-Related Side Effects and Adverse ReactionsErbB ReceptorsFemaleGefitinibHumansMiddle AgedNeoplasms, Hormone-DependentPlacebosQuinazolinesReceptor, ErbB-2Receptors, EstrogenSignal TransductionTamoxifenTreatment OutcomeConceptsAdjuvant aromatase inhibitorsMetastatic breast cancerBreast cancerHormone receptor-positive metastatic breast cancerPositive metastatic breast cancerRandomized phase II studyRandomized phase II trialClinical benefit ratePhase II studyPhase II trialProgression-free survivalStratum 1Epidermal growth factor receptor inhibitor gefitinibFurther investigationAdjuvant tamoxifenImproved PFSPFS HRAI therapyII studyII trialMetastatic diseaseAppropriate patientsPredictive biomarkersPrimary tumorTamoxifen resistance