A Study of Abemaciclib (LY2835219) in Combination With Fulvestrant Compared to Chemotherapy in Women With HR Positive, HER2 Negative Metastatic Breast Cancer

Progression Free Survival (PFS)

PFS is defined as the time from first dose date until the first occurrence of documented disease progression per Response Criteria In Solid Tumors version 1.1(RECIST v1.1) or death from any cause in the absence of progressive disease. Progression-free survival will be based on investigator-assessed tumor responses; there will not be an independent central review of imaging data.

Time frame: First Dose Date to Objective Progression or Death Due to Any Cause (Up to 12 Months)

Time to Response (TTR)

TTR is defined as the time from first dose date until the date that measurement criteria for CR or PR (whichever is first recorded) are first met, per Response Evaluation Criteria in Solid Tumors (RECIST) v1.1.

Time frame: First Dose to Date of CR or PR (Up to 12 Months)

Duration of Response (DoR)

DoR is defined as the time from the date that measurement criteria for CR or PR (whichever is first recorded) are first met until the first date that disease is recurrent or documented disease progression is observed, per RECIST 1.1 criteria, or the date of death from any cause in the absence of documented disease progression or recurrence.