( tumor response. The most common severe ...)Pharmacyclics Announces Interim Results From Two Ongoing Phase 2,Trials Supporting Potential of Xcytrin Plus Chemotherapy to Treat,Recurrent Non-Small Cell Lung Cancer,Health

"These initial results are encouraging because a relatively low proportion of patients are experiencing disease progression at this time when treated with Xcytrin plus chemotherapy consistent with the synergistic effects we observed in preclinical and early clinical studies," said Richard A. Miller, M.D., president and CEO of Pharmacyclics. "Along with the activity seen in our single agent trial for second-line treatment of non-small cell lung cancer reported last month at ASCO, these data continue to support Xcytrin's potential role in this underserved cancer and further inform the design of our pivotal Phase 3 trial in this indication, which we plan to begin in the first half of 2008."

A New Drug Application for use of Xcytrin in combination with whole brain radiation therapy for treatment of brain metastases from NSCLC was filed with the U.S. Food and Drug Administration in April 2007.

About Non-Small Cell Lung Cancer

The American Cancer Society estimates that there will be more than 213,000 new cases of lung cancer in the United States in 2007. Lung cancer is the leading cause of cancer death, and accounts for over 160,000 deaths in the United States each year. The most common form of lung cancer, non-small cell, is incurable in advanced stages. Lung cancer frequently spreads to other body parts, including the brain.

Xcytrin in Second-Line Lung Cancer

Pharmacyclics is developing Xcytrin as an anti-cancer agent with a novel mechanism of action that is designed to selectively concentrate in tumors and induce apoptosis (programmed cell death). Xcytrin is a redox-active drug that has been shown to disrupt redox-dependent pathways in cells and inhibit oxidative stress-related proteins such as thioredoxin reductase. Its multifunctiona
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