Open Actively Recruiting

Abemaciclib (LY2835219) Plus Fulvestrant Compared to Placebo Plus Fulvestrant in Previously Treated Breast Cancer

About

Brief Summary

This study will evaluate the effect of adding abemaciclib to fulvestrant for the treatment of hormone receptor-positive (HR+), human epidermal growth factor receptor 2-negative (HER2-) breast cancer that progressed or recurred after previous treatment with a type of drug known as a CDK4/6 inhibitor and endocrine therapy. Participation could last up to 5 years, depending on how you and your tumor respond.

Primary Purpose

Treatment

Study Type

Interventional

Phase

Phase III

Eligibility

Gender

All

Healthy Volunteers

Minimum Age

18 Years

Maximum Age

N/A

Inclusion Criteria:

Have a diagnosis of HR+, HER2- locally advanced or metastatic breast cancer
Have radiologic evidence of disease progression or recurrence either
- On treatment with a CDK4/6 inhibitor with aromatase inhibitor (AI) as initial therapy for advanced disease, or
- On/after treatment with a CDK4/6 inhibitor plus endocrine therapy (ET) administered as adjuvant therapy for early stage breast cancer
Must be deemed appropriate for treatment with ET
If female, have a postmenopausal status by natural or surgical means or by ovarian function suppression
Have Response Evaluable Criteria in Solid Tumors (RECIST) evaluable disease (measurable disease and/or nonmeasurable disease)
Have a performance status of 0 or 1 on the Eastern Cooperative Oncology Group scale (Oken et al. 1982)
Have adequate renal, hematologic, and hepatic organ function
Must be able to swallow capsules/tablets

Exclusion Criteria:

Have visceral crisis, lymphangitic spread, or leptomeningeal carcinomatosis
Have symptomatic or untreated central nervous system metastasis
Have received any systemic therapy between disease recurrence/progression and study screening
Have received more than 1 line of therapy for advanced or metastatic disease.
Have received prior chemotherapy for metastatic breast cancer (MBC)
Have received prior treatment with fulvestrant, any investigational estrogen receptor (ER)-directed therapy (including selective ER degraders [SERDs] and non-SERDs), any phosphatidylinositol 3-kinase (PI3K)-, mammalian target of rapamycin (mTOR)-, or protein kinase B (AKT)-inhibitor

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Study Stats

Protocol No.

21-002089