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Herceptin Again Proves Mettle Against Breast Cancer
Date:1/28/2010

Improved survival seen when used with chemo for HER2 malignancies, researchers report

THURSDAY, Jan. 28 (HealthDay News) -- High-risk breast cancer patients with HER2-positive tumors benefit from receiving the targeted therapy Herceptin while undergoing chemotherapy, new research shows.

"It's in a European journal [The Lancet], but it's something many of us in the U.S. have already begun to do," said Dr. Jay Brooks, chairman of hematology/oncology at Ochsner Health System in Baton Rouge, La. "It just confirms what has really become standard of care in this country, but it's very nice to see it done in a scientific way," he added.

"The reason why Herceptin is so valuable to patients who have locally advanced breast cancer is they have a very bad prognosis," he continued. "The cancers are usually bigger. They may have spread to the lymph nodes in the armpits and they're usually not small enough to be cut out to preserve the breast."

When Brooks sees a patient with locally advanced breast cancer, he treats them first with chemotherapy, to shrink the tumor, along with trastuzumab (Herceptin). Once chemo is completed -- after about six months -- it's easier to operate and remove the tumor. Then the patient is continued on Herceptin for a year, followed by radiation.

The new study, one of the largest looking at Herceptin in this context, was funded by Hoffmann-La Roche, which makes the drug. It appears in the Jan. 30 issue of The Lancet.

Previous research has shown that Herceptin with chemotherapy helped women with both early and metastatic breast cancer live longer.

According to the study authors, from IRCCS Istituto Nazionale de Tumori in Milan, about 22 percent of early breast cancers, 35 percent of locally advanced breast cancers and metastatic tumors, and 40 percent of inflammatory breast cancers overexpress HER2 (human epidermal growth factor receptor-2). These tumors tend to be
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