Bavencio Approved as First Treatment for Rare Form of Skin Cancer

New Drugs , News / March 25, 2017

The FDA today granted accelerated approval to Bavencio (avelumab) for the treatment of adults and pediatric patients 12 years and older with metastatic Merkel cell carcinoma (MCC), including those who have not received prior chemotherapy. This is the first FDA-approved treatment for metastatic MCC, a rare, aggressive form of skin cancer.

Bavencio targets the PD-1/PD-L1 pathway (proteins found on the body’s immune cells and some cancer cells). By blocking these interactions, Bavencio may help the body’s immune system attack cancer cells.

Today’s approval of Bavencio was based on data from a single-arm trial of 88 patients with metastatic MCC who had been previously treated with at least one prior chemotherapy regimen. The trial measured the percentage of patients who experienced complete or partial shrinkage of their tumors (overall response rate) and, for patients with a response, the length of time the tumor was controlled (duration of response). Of the 88 patients who received Bavencio in the trial, 33 percent experienced complete or partial shrinkage of their tumors. The response lasted for more than six months in 86 percent of responding patients and more than 12 months in 45 percent of responding patients.

Common side effects of Bavencio include fatigue, musculoskeletal pain, diarrhea, nausea, infusion-related reactions, rash, decreased appetite and swelling of the limbs (peripheral edema). The most common serious risks of Bavencio are immune-mediated, where the body’s immune system attacks healthy cells or organs, such as the lungs (pneumonitis), liver (hepatitis), colon (colitis), hormone-producing glands (endocrinopathies) and kidneys (nephritis). In addition, there is a risk of serious infusion-related reactions. Patients who experience severe or life-threatening infusion-related reactions should stop using Bavencio. Women who are pregnant or breastfeeding should not take Bavencio because it may cause harm to a developing fetus or a newborn baby.

The FDA granted accelerated approval of Bavencio to EMD Serono Inc.

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