Data from Pharmawand - Curated by EPG Health - Date added 07 February 2019

MacroGenics announced positive results from SOPHIA, the Company’s Phase III clinical study of MGAH 22 (margetuximab) in HER2-positive metastatic breast cancer patients. Margetuximab is an investigational immune-enhancing monoclonal antibody derived from the Company’s proprietary Fc Optimization technology platform. The SOPHIA clinical trial met the primary endpoint of prolongation of progression-free survival (PFS) in patients treated with the combination of margetuximab plus chemotherapy compared to trastuzumab plus chemotherapy. Patients in the margetuximab arm experienced a 24% risk reduction in PFS compared to patients in the trastuzumab arm (HR=0.76, p=0.033). Notably, approximately 85% of patients in the study were carriers of the CD16A (FcyRIIIa) 158F allele, which has been previously associated with diminished clinical response to Herceptin and other antibodies.

In this pre-specified subpopulation, patients in the margetuximab arm experienced a 32% risk reduction in PFS compared to patients in the trastuzumab arm (HR=0.68, p=0.005). Results of the SOPHIA study are being prepared for submission for publication and presentation later this year at a major scientific conference. Follow-up for determination of the impact of therapy on the sequential primary endpoint of overall survival (OS) is ongoing, as pre-specified in the study protocol and recommended by the trial’s independent Data Safety Monitoring Committee. MacroGenics anticipates submitting a Biologics License Application (BLA) to the U.S. Food and Drug Administration in the second half of 2019.

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

Cushing's Syndrome

Cushing's Syndrome

Cushing’s syndrome shares symptoms such as hypertension, glucose intolerance and obesity with other common conditions – how can you confidently diagnose this rare disorder?

+ 2 more

Load more

Related Content