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12/18/2014
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`2007 > FDA Approves Tykerb for Advanced Breast Cancer Patients
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`FDA NEWS RELEASE
`FOR IMMEDIATE RELEASE
`P07­44
`March 13, 2007
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`FDA Approves Tykerb for Advanced Breast Cancer Patients
`The Food and Drug Administration (FDA) today approved Tykerb (lapatinib), a new targeted anti­cancer
`treatment, to be used in combination with capectabine (Xeloda), another cancer drug, for patients with
`advanced, metastatic breast cancer that is HER2 positive (tumors that exhibit HER2 protein). The
`combination treatment is indicated for women who have received prior therapy with other cancer drugs,
`including an anthracycline, a taxane, and trastuzumab (Herceptin). According to the American Cancer
`Society, about 180,000 new cases of breast cancer are diagnosed each year. Approximately 8,000 to
`10,000 women die from metastatic HER2 positive breast cancer each year.
`Tykerb, a new molecular entity (NME), is a kinase inhibitor working through multiple pathways (targets) to
`deprive tumor cells of signals needed to grow. Unlike, for example, trastuzumab — a monoclonal antibody,
`which is a large protein molecule that targets the part of the HER2 protein on the outside of the cell —
`Tykerb is a small molecule that enters the cell and blocks the function of this and other proteins. Because
`of this difference in mechanism of action, Tykerb works in some HER2 positive breast cancers that have
`been treated with trastuzumab and are no longer benefiting.
`"Today's approval is a step forward in making new treatments available for patients who have progression of
`their breast cancer after treatment with some of the most effective breast cancer therapies available," said
`Steven Galson, MD, M.P.H., Director of FDA's Center for Drug Evaluation and Research. "New targeted
`therapies such as Tykerb are helping expand options for patients."
`The approval of Tykerb was based on a randomized clinical trial in about 400 women with advanced or
`metastatic breast cancer that was also HER2 positive. In the trial, half the patients received Tykerb with
`capecitabine and half received capecitabine alone. Compared to patients receiving capecitabine alone, the
`group of patients receiving Tykerb with capecitabine had a statistically significant improvement in the time
`to tumor progression. In addition, the tumor response rate was higher in the group of patients receiving
`Tykerb with capecitabine (24 percent vs. 14 percent). The survival data are not yet mature.
`The most commonly reported Tykerb­related side effects included diarrhea, nausea, vomiting, rash and
`hand­foot syndrome which may include numbness, tingling, redness, swelling and discomfort of hands and
`feet. Generally reversible decreases in heart function (that can lead to shortness of breath) have also been
`reported in a small percentage of patients. Patients should talk to their doctor about potential side effects,
`potential drug interactions, and other medical conditions including heart and liver problems. Tykerb is
`available in tablets of 250 mg. An undivided dose of 1,250 mg should be taken orally once daily for 21 days
`and in combination with capecitabine on days 1­14 of a 21 day cycle.
`Tykerb will be distributed by GlaxoSmithKline, of Research Triangle Park, North Carolina.
`
`# 
`
`RSS Feed for FDA News Releases10 [what is RSS?11]
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`http://www.fda.gov/NewsEvents/Newsroom/PressAnnouncements/2007/ucm108866.htm
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`1/2
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`IMMUNOGEN 2055, pg. 1
`Phigenix v. Immunogen
`IPR2014-00676
`
`

`

`2007 > FDA Approves Tykerb for Advanced Breast Cancer Patients
`
`12/18/2014
`Page Last Updated: 04/10/2013 
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`IMMUNOGEN 2055, pg. 2
`Phigenix v. Immunogen
`IPR2014-00676
`
`

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