Phase II study of MEK inhibitor trametinib alone and in combination with AKT inhibitor GSK2141795/uprosertib in patients with metastatic triple negative breast cancer
Prasath V, Boutrid H, Wesolowski R, Abdel-Rasoul M, Timmers C, Lustberg M, Layman R, Macrae E, Mrozek E, Shapiro C, Glover K, Vater M, Budd G, Harris L, Isaacs C, Dees C, Perou C, Johnson G, Poklepovic A, Chen H, Villalona-Calero M, Carson W, Stover D, Ramaswamy B. Phase II study of MEK inhibitor trametinib alone and in combination with AKT inhibitor GSK2141795/uprosertib in patients with metastatic triple negative breast cancer. Breast Cancer Research And Treatment 2024, 1-11. PMID: 39644403, DOI: 10.1007/s10549-024-07551-z.Peer-Reviewed Original ResearchMetastatic triple negative breast cancerProgression-free survivalCirculating tumor DNATriple negative breast cancerTrametinib monotherapyNegative breast cancerStable diseasePartial responseBreast cancerCirculating tumor DNA clearanceMedian progression-free survivalClinical benefit rateMEK inhibitor trametinibPhase II studyBiomarkers of responseTreated with chemotherapyPotential early biomarkersInhibitor trametinibOpen-labelOverall survivalConclusionIn patientsDevelopment of resistanceObjective responseTumor DNABenefit rateImpact of HER2 low status on genomic signatures in triple negative breast cancer (TNBC).
Taylor M, Reddy S, Ashok Kumar P, Hariri D, Sokol E, Sivakumar S, Quintanilha J, Pavlick D, Levy M, Ross J, Lustberg M. Impact of HER2 low status on genomic signatures in triple negative breast cancer (TNBC). Journal Of Clinical Oncology 2024, 42: 1092-1092. DOI: 10.1200/jco.2024.42.16_suppl.1092.Peer-Reviewed Original ResearchTriple negative breast cancerComprehensive genomic profilingGenomic alterationsHER2 statusHER2 2Triple negative breast cancer groupGA frequencyReview of pathology specimensHER2 IHC expressionHER2-low statusHER2-low tumorsLack of clinical dataPD-L1 expressionTumor mutational burdenHER2 IHC scoreHER2 2+Negative breast cancerEvaluate genomic alterationsMann-Whitney U testPotential treatment optionStatistically significant differenceHER2 subgroupsPD-L1Immunotherapy biomarkersChi-square test