The U.S. Food and Drug Administration recently granted accelerated approval to Perjeta (pertuzumab) as part of a complete treatment regimen for patients with early stage breast cancer before surgery (neoadjuvant setting). Perjeta is the first FDA-approved drug for the neoadjuvant treatment of breast cancer.
Perjeta was approved in 2012 for the treatment of patients with advanced or late-stage (metastatic) HER2-positive breast cancer. HER2-positive breast cancers have increased amounts of the HER2 protein that contributes to cancer cell growth and survival.
Perjeta’s new use is intended for patients with HER2-positive, locally advanced, inflammatory or early stage breast cancer (tumor greater than 2 cm in diameter or with positive lymph nodes) who are at high risk of having their cancer return or spread (metastasize) or of dying from the disease. It is to be used in combination with trastuzumab and other chemotherapy prior to surgery and, depending upon the treatment regimen used, may be followed by chemotherapy after surgery. Following surgery, patients should continue to receive trastuzumab to complete one year of treatment.
“We are seeing a significant shift in the treatment paradigm for early stage breast cancer,” said Richard Pazdur, M.D., director of the Office of Hematology and Oncology Products in the FDA’s Center for Drug Evaluation and Research. “By making effective therapies available to high-risk patients in the earliest disease setting, we may delay or prevent cancer recurrences.’’
In May 2012, the FDA issued a draft guidance about the use of pathologic complete response (pCR), defined as the absence of invasive cancer in the breast and lymph nodes, as an endpoint to support accelerated approval of a drug for neoadjuvant treatment of high-risk, early stage breast cancer. Under the FDA’s accelerated approval program, patients are provided access to promising drugs to treat serious or life-threatening conditions while confirmatory clinical trials are conducted.
Perjeta is marketed by Genentech, a member of the Roche Group, based in South San Francisco, Calif.