Group 1F: Metastatic Breast Cancer; ER+; Liquid Biopsy; Treatment Resistance

Poster #P1-01-26: Genomic profiling of ctDNA and association with efficacy in patients from the postMONARCH trial of abemaciclib + fulvestrant vs placebo + fulvestrant for HR+, HER2-, advanced breast cancer following progression on a prior CDK4/6i plus endocrine therapy

Poster #P2-07-22: Cyclin-dependent kinase 7 (CDK7) inhibitor samuraciclib combined with selective estrogen receptor degrader (SERD) elacestrant in advanced HR+ breast cancer after CDK4/6i: dose escalation data from the Phase 1b/2 SUMIT-ELA study