Anti-CDK4/6 Boosts PFS in Metastatic Breast Cancer

Excerpt:

“The addition of a targeted agent to endocrine therapy for metastatic breast cancer led to unprecedented improvement in progression-free survival (PFS) that will have a ‘paradigm changing’ effect on clinical management, an investigator said here.

“Patients who received the cyclin-dependent kinase (CDK)4/6 inhibitor ribociclib in addition to letrozole (Femara) had a 44% reduction in the PFS hazard compared with patients treated with letrozole alone. The median PFS (primary endpoint) was 14.7 months with letrozole but had yet to be reached with letrozole plus ribociclib, ‘but it is expected to far exceed what the control arm did,’ Gabriel N. Hortobagyi, MD, reported at the European Society for Medical Oncology (ESMO) conference.”

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