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Old 11-30-2005, 10:14 AM   #3
Tom
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Thumbs up More on Lapatinib (Tykerb)

Hi Eric. Here is a little more detail on Tykerb's progress from the Glaxo-Smith Kline stockholder's confernece call early this morning. I'll provide the link and the text that deals with Tykerb. I thought their new name was clever. Tyk for tyrosine kinase, and erb for the erb1 and erb2 receptors it inhibits. I hope it is as clever at shutting down the malignant cells.

http://www.gsk.com/ControllerServlet...402&newsid=697#






- Tykerb — a targeted oral therapy with thepotential to become an essential component in the treatment of breast cancer



World-wide, 400,000 women die each year as a result of breast cancer, and its prevalence is increasing with approximately 1.5 million new cases diagnosed every year. Tykerb, a dual-kinase inhibitor, is an oral once-daily treatment currently being developed for breast cancer and other tumors. It works by inhibiting two well-validated targets in oncology, the kinase components of ErbB1 (EGFR) and ErbB2 receptors, which are associated with cancer-cell proliferation and tumor growth.



Data presented at today’s seminar, and at the recent European Cancer Conference (ECCO) in Paris, illustrate the promising efficacy and safety profile of Tykerb. Interim results from an international phase II trial of Tykerb as first-line therapy in 40 patients with advanced or metastatic breast cancer (with ErbB2 overexpression) showed that 33% of patients had tumor reductions, with 40% of patients experiencing clinical benefit (tumor reduction or stable disease for at least 24 weeks). A further update will be presented at the San Antonio Breast Cancer Symposium on 8th December.



Tykerb has also shown preliminary activity in the treatment of brain metastases, which represents a significant unmet medical need for breast cancer patients.



Results were recently analyzed from a 416 patient phase II/III clinical trial in the treatment of renal cancer. While the primary end-point was not met in the full population, a preliminary analysis of the sub-group of 241 patients with over-expression of EGFR demonstrated a statistically significant survival benefit for patients receiving Tykerb. This data is expected to be presented at ASCO in 2006.



In the 3,500 patients who are part of its clinical development program, Tykerb to date has shown a low incidence of cardiotoxicity, a condition associated with some breast cancer treatments. The most frequently reported adverse events associated with Tykerb have been mild to moderate itching, rash, diarrhea, acne, and dry skin.



Tykerb’s clinical program has been expanded, with three new phase III trials being initiated by January 2006, two in first-line therapy and one in refractory breast cancer. A large phase II trial in the treatment of brain metastases associated with breast cancer started in November 2005. In mid-November, GSK and the Breast International Group - one of the world’s premier cancer research groups - agreed to collaborate on a large-scale global clinical trial to evaluate Tykerb as adjuvant therapy in early-stage breast cancer.

GSK expects to file Tykerb for US Food and Drug Administration (FDA) approval at the end of 2006 or in the first half of 2007.


Last edited by Tom; 11-30-2005 at 10:18 AM.. Reason: Inserted wrong section of larger article.
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