Genentech, a member of the Roche Group (SIX: RO, ROG; OTCQX: RHHBY), today announced that the U.S. Food and Drug Administration (FDA) granted accelerated approval of a Perjeta ® (pertuzumab) regimen for neoadjuvant treatment (use before surgery) in people with high-risk, HER2-positive early stage breast cancer. This approval is based primarily on data from a Phase II study showing that nearly 40 percent of people receiving the combination of Perjeta, Herceptin ® (trastuzumab) and docetaxel chemotherapy had no evidence of tumor tissue detectable at the time of surgery (known as a pathological complete response, or pCR). The Perjeta regimen is the first neoadjuvant breast cancer treatment approved by the FDA and also the first to be approved based on pCR data.
Neoadjuvant treatment may allow a doctor to quickly assess whether a medicine is working, and may also reduce a tumor's size so it is easier to surgically remove. pCR is a common measure of neoadjuvant treatment effect in breast cancer and can be assessed more quickly than traditional endpoints in early stage breast cancer. Treating people with breast cancer early, before the cancer has spread, may offer the best chance of preventing the disease from returning.
“A new approval pathway has made Perjeta available to people with HER2-positive early breast cancer several years earlier than previously possible,” said Hal Barron, M.D., chief medical officer and head, Global Product Development. “Together with the FDA, we’ve charted new territory. We look forward to working with health authorities around the world to explore additional ways to bring promising medicines to patients more quickly.”
This new neoadjuvant indication for Perjeta is for use prior to surgery in combination with Herceptin and docetaxel chemotherapy in people with HER2-positive, locally advanced, inflammatory, or early stage (tumor is greater than two centimeters in diameter or node positive) breast cancer. Perjeta should be used as part of a complete treatment regimen for early stage breast cancer. This use of Perjeta is based on an improvement in the percentage of people who had no evidence of cancer in the breast or lymph nodes at the time of surgery. Currently, no data have shown whether or not treatment with Perjeta prior to surgery improves survival. The safety of Perjeta as part of a doxorubicin (chemotherapy)-containing regimen has not been established. The safety of Perjeta administered for greater than six cycles for early stage breast cancer has not been established.
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