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Tarceva approved... FDA link

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FDA Approves New Drug For The Most Common Type Of Lung Cancer

The Food and Drug Administration (FDA) announced the approval of Tarceva

(erlotinib) tablets as a single agent treatment for patients with locally advanced or metastatic non-small cell lung cancer (NSCLC), the most common form of lung cancer in the U.S.

Tarceva is being approved as a treatment for patients whose cancer has continued to progress despite other treatments, including at least one prior chemotherapy regimen.

Tarceva is a drug that inhibits an enzyme, tyrosine kinase, associated with a Human Epidermal Growth Factor Receptor. The drug has shown improved survival in patients with locally advanced or metastatic NSCLC. Tarceva received "Fast Track" status from FDA during its development.

"FDA believes it is crucial for cancer patients to have many safe and effective treatment options available to them in their battle against this disease" Dr. Lester M. Crawford, Acting FDA Commissioner said.

"With the approval of Tarceva thousands of patients with lung cancer will not only have access to another treatment option, but one that extends life."

Safety and efficacy were demonstrated in one randomized trial in 731 patients comparing Tarceva to placebo. The primary endpoint in this trial was survival. The median overall survival was 6.7 months in the Tarceva group compared with 4.7 months in the placebo group.

The mechanism of action by which Tarceva exerts its clinical benefit is not fully understood. However, Tarceva was developed to block growth stimulatory signals in cancer cells. These signals are mediated in part by enzymes called tyrosine kin sases. Tarceva blocks the tyrosine kinase associated with Epidermal Growth Factor Receptor (EGFR).

In about one third of the patients tumor cells were examined to see whether they had high or low levels of EGFR. Among the approximately 55% who had high EGFR the effect on survival was much greater than it was in people whose EGFR levels were low. The relationship will be explored further in the future.

Cancer of the lung and bronchus is the second most common cancer among both men and women and is the leading cause of cancer death in both sexes in the Unites States. NSCLC is the most common type of lung cancer, accounting for almost 80% of lung cancers. The drug will be manufactured by OSI Pharmaceuticals Inc., and distributed by Genentech Inc., of South San Francisco, California.

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