Overview A Pharmacodynamics Pre-surgical Study of LEE011 in Early Breast Cancer Patients (MONALEESA-1) Status: Terminated Trial end date: 2014-09-01 Target enrollment: Participant gender: Summary This is a multi-center, open-label Phase II randomized pre-surgical pharmacodynamics study. Phase: Phase 2 Details Lead Sponsor: Novartis PharmaceuticalsTreatments: Letrozole