European Commission approves Kisqali (ribociclib) in combination with an aromatase inhibitor for treatment HR+/HER2- locally advanced or metastatic breast cancer.- Novartis

Novartis announced that the European Commission (EC) approved Kisqali (ribociclib) in combination with an aromatase inhibitor for treatment of postmenopausal women with hormone receptor positive, human epidermal growth factor receptor-2 negative (HR+/HER2-) locally advanced or metastatic breast cancer as initial endocrine-based therapy. Kisqali is the first CDK4/6 inhibitor approved in Europe based on a first-line Phase III trial that met its primary endpoint of progression-free survival (PFS) at interim analysis. EU approval follows a positive opinion granted in June by the Committee for Medicinal Products for Human Use (CHMP) of the European Medicines Agency (EMA), which was based on superior efficacy and demonstrated safety of Kisqali plus letrozole versus letrozole alone in the pivotal Phase III MONALEESA-2 trial. The opinion included a recommendation that allows oncologists the flexibility to prescribe Kisqali with any aromatase inhibitor (i.e., letrozole, anastrozole or exemestane) they deem most appropriate for their patient.

MONALEESA-2 enrolled 668 postmenopausal women with HR+/HER2- advanced or metastatic breast cancer who received no prior systemic therapy for their advanced breast cancer and showed that Kisqali plus letrozole, an aromatase inhibitor, reduced the risk of progression or death by 43% over letrozole alone (median PFS=25.3 months (95% CI: 23.0-30.3) vs. 16.0 months (95% CI: 13.4-18.2); HR=0.568 (95% CI: 0.457-0.704; p<0.0001). More than half of patients (55%) with measurable disease taking Kisqali plus letrozole experienced a tumor reduction of at least 30 percent.

Comment:Ribociclib, which is an oral treatment that can be taken at home, slows down the progression of advanced breast cancer for an average of over two years in combination with an aromatase inhibitor in postmenopausal women.