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Last Updated: Oct 11, 2012 - 10:22:56 PM
Research Article
Breast Cancer Channel

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Latest Research : Cancer : Breast Cancer

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Lapatinib (Tykerb) and capecitabine (Xeloda) shrink breast cancer metastases in the brain

Dec 16, 2007 - 9:57:43 AM , Reviewed by: Dr. Sanjukta Acharya
"Very few medications have shown activity in the treatment of brain metastases, particularly in HER-2-positive metastatic breast cancer patients," said Lin, who led the study with Eric Winer, MD, director of the Dana-Farber Breast Oncology Center. "Therefore, these data are quite encouraging, and further studies are warranted."

 
[RxPG] A combination of a "targeted" therapy and chemotherapy shrank metastatic brain tumors by at least 50 percent in one-fifth of patients with aggressive HER2-positive breast cancer, according to data presented by Dana-Farber Cancer Institute investigators at the San Antonio Breast Cancer Symposium.

Lapatinib (Tykerb) and capecitabine (Xeloda) were paired in an extension of a Phase 2 clinical trial in which lapatinib given alone shrank brain metastases significantly in six percent of 241 patients.

In the extension trial, capecitabine was added to lapatinib in 49 patients whose metastases -- cancerous colonies in the brain spread from their primary cancer -- had progressed while on treatment. With the combination therapy, brain metastases shrank by 20 percent or more in 18 patients (37 percent) and shrank by at least 50 percent in 10 patients (20 percent), reported Nancy Lin, MD, of Dana-Farber's Breast Oncology Center.

"Very few medications have shown activity in the treatment of brain metastases, particularly in HER-2-positive metastatic breast cancer patients," said Lin, who led the study with Eric Winer, MD, director of the Dana-Farber Breast Oncology Center. "Therefore, these data are quite encouraging, and further studies are warranted."

The data (abstract 6076) will be presented on Sunday, Dec. 16 at 7 a.m. CT.

Lapatinib is an oral small-molecule drug from GlaxoSmithKline that is approved along with capecitabine for treating patients with advanced or metastatic breast cancer whose tumors are driven by the abnormal growth signal, HER-2, and who have already undergone therapy including trastuzumab (Herceptin), a taxane drug, and an anthracycline compound. Lapatinib, like trastuzumab, blocks the HER-2 signal.

Up to one-third of women with advanced, HER-2-positive breast cancer may develop metastases to the brain.

"Although radiation treatment is often effective, as women live longer with metastatic cancer, some develop worsening of brain metastases despite radiation," said Lin. "Because cancer in the brain can have a major impact on quality of life, it is important to have treatment options to address this problem."




Funding information and declaration of competing interests: The study was sponsored in part by GlaxoSmithKline.

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 About Dr. Sanjukta Acharya
This news story has been reviewed by Dr. Sanjukta Acharya before its publication on RxPG News website. Dr. Sanjukta Acharya, MBBS is the chief editor for RxPG News website. She oversees all the medical news submissions and manages the medicine section of the website. She has a special interest in diabetes and endocrinology.
RxPG News is committed to promotion and implementation of Evidence Based Medical Journalism in all channels of mass media including internet.
 Additional information about the news article
Dana-Farber Cancer Institute (www.dana-farber.org) is a principal teaching affiliate of the Harvard Medical School and is among the leading cancer research and care centers in the United States. It is a founding member of the Dana-Farber/Harvard Cancer Center (DF/HCC), designated a comprehensive cancer center by the National Cancer Institute.
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