americanpharmaceuticalreviewJuly 24, 2017
Tag: CHMP , Metastatic Merkel Cell Carcinoma , positive opinion
Merck and Pfizer announced the Committee for Medicinal Products for Human Use (CHMP) of the European Medicines Agency (EMA) has recommended the approval of avelumab (BAVENCIO) as a monotherapy for the treatment of adult patients with metastatic Merkel cell carcinoma (mMCC), a rare and aggressive skin cancer. The European Commission (EC) will now review the CHMP's recommendation, with a decision expected in the third quarter of 2017.
"We welcome the CHMP's recommendation, as there are currently no approved treatments in Europe for this type of skin cancer, which can be devastating for patients and their families," said Luciano Rossetti, M.D., Executive Vice President, Global Head of Research & Development at the biopharma business of Merck. "This is an important step towards making avelumab available to patients and we look forward to the European Commission's decision later this year."
The CHMP positive opinion is based on data from JAVELIN Merkel 200, an international, multicenter, single-arm, open-label, Phase II study split into two parts:
The human anti-PD-L1 antibody, avelumab, previously received Orphan Drug Designation (ODD) from the EC for MCC. To qualify for ODD in the EU, a medicine must be intended for the treatment, prevention or diagnosis of a disease that is life-threatening or chronically debilitating, and has a prevalence in the EU of not more than 5 in 10,000 people.
The US Food and Drug Administration (FDA) granted accelerated approval for avelumab in March 2017 for the treatment of mMCC in adults and pediatric patients 12 years and older; and in May 2017 for the treatment of patients with locally advanced or metastatic urothelial carcinoma who have disease progression during or following platinum-containing chemotherapy therapy, or who have disease progression within 12 months of neoadjuvant or adjuvant treatment with platinum-containing chemotherapy. These indications were granted under accelerated approval based on tumor response rate and duration of response data/criteria. Continued approval for these indications may be contingent upon verification and description of clinical benefit in confirmatory trials.
The clinical development program for avelumab, known as JAVELIN, involves at least 30 clinical programs and more than 6,000 patients evaluated across more than 15 different tumor types. In addition to mMCC, these cancers include breast, gastric/gastro-esophageal junction, head and neck, Hodgkin's lymphoma, melanoma, mesothelioma, non-small cell lung, ovarian, renal cell carcinoma and urothelial carcinoma.
Metastatic MCC is a rare and aggressive disease in which cancer cells form in the top layer of the skin, close to nerve endings. MCC, which is also known as neuroendocrine carcinoma of the skin or trabecular cancer, often starts in those areas of skin that are most often exposed to the sun, including the head and neck, and arms. Risk factors for MCC include sun exposure and infection with Merkel cell polyomavirus. Caucasian males older than 50 are at increased risk. MCC is a highly immunogenic cancer, meaning that those with a weak immune system (i.e., solid organ transplant recipients, people with HIV/AIDS and people with other cancers, such as chronic lymphocytic leukemia) are also at a higher risk. MCC is often misdiagnosed for other skin cancers and grows at an exponential rate on chronically sun-damaged skin. Current treatment options for MCC in Europe include surgery, radiation and chemotherapy. Treatment for metastatic or Stage IV MCC is generally palliative.
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