Data from Journal of Clinical Oncology - Curated by EPG Health - Date available 03 June 2018

Availability

Free full text

Article type

Clinical trial

Original date published

3 June 2018

Original format

Epub ahead of print

Purpose: This phase III study evaluated ribociclib plus fulvestrant in patients with hormone receptor–positive/human epidermal growth factor receptor 2–negative advanced breast cancer who were treatment naïve or had received up to one line of prior endocrine therapy in the advanced setting.

Patients and Methods: Patients were randomly assigned at a two-to-one ratio to ribociclib plus fulvestrant or placebo plus fulvestrant. The primary end point was locally assessed progression-free survival. Secondary end points included overall survival, overall response rate, and safety.

Results: A total of 484 postmenopausal women were randomly assigned to ribociclib plus fulvestrant, and 242 were assigned to placebo plus fulvestrant. Median progression-free survival was significantly improved with ribociclib plus fulvestrant versus placebo plus fulvestrant: 20.5 months (95% CI, 18.5 to 23.5 months) versus 12.8 months (95% CI, 10.9 to 16.3 months), respectively (hazard ratio, 0.593; 95% CI, 0.480 to 0.732; P < .001). Consistent treatment effects were observed in patients who were treatment naïve in the advanced setting (hazard ratio, 0.577; 95% CI, 0.415 to 0.802), as well as in patients who had received up to one line of prior endocrine therapy for advanced disease (hazard ratio, 0.565; 95% CI, 0.428 to 0.744). Among patients with measurable disease, the overall response rate was 40.9% for the ribociclib plus fulvestrant arm and 28.7% for placebo plus fulvestrant. Grade 3 adverse events reported in ≥ 10% of patients in either arm (ribociclib plus fulvestrant v placebo plus fulvestrant) were neutropenia (46.6% v 0%) and leukopenia (13.5% v 0%); the only grade 4 event reported in ≥ 5% of patients was neutropenia (6.8% v 0%).

Conclusion: Ribociclib plus fulvestrant might represent a new first- or second-line treatment option in hormone receptor–positive/human epidermal growth factor receptor 2–negative advanced breast cancer.


Related study:
- Study of Efficacy and Safety of LEE011 in Men and Postmenopausal Women With Advanced Breast Cancer. (MONALEESA-3)

Data sources

Read abstract on library site Access full article

Comments

You will need to login, to leave a comment.

epgonline.org is not monitored for collection of adverse event reports. Any adverse events should be reported to your national reporting agency and/or the manufacturer.

Learning Zones

An epgonline.org Learning Zone (LZ) is an area of the site dedicated to providing detailed self-directed medical education about a disease, condition or procedure.

CDK 4/6 inhibitors in metastatic breast cancer

CDK 4/6 inhibitors in metastatic breast cancer

The CDK 4/6 Inhibitors in Metastatic Breast Cancer Learning Zone provides insights and information for metastatic breast cancer (mBC) and CDK 4/6 signalling. This includes the burden and pathophysiology of the disease, the role of CDK 4/6 in cell proliferation and an overview of the CDK 4/6 inhibitors that have been approved for the management of mBC.

Chronic Lymphocytic Leukaemia (CLL)

Chronic Lymphocytic Leukaemia (CLL)

Refine your knowledge of chronic lymphocytic leukaemia (CLL) with information on pathophysiology, diagnosis, treatment options and more

+ 1 more

Biosimilars Knowledge Centre

Biosimilars Knowledge Centre

What are biologics and how do they differ from small molecule medicines? Discover more about their development, as well as the manufacturing and regulatory processes in the Biosimilars in Oncology Knowledge Centre.

Load more

Related Content