Combo therapy reduces size of brain tumours

Dec 19 2007

According to a major drug manufacturer, a combination drug treatment appears to be effective in fighting breast cancer that has spread to the brain.

The company, GlaxoSmithKline, says patients who were given a combo of Tykerb and the drug Xeloda had a significant reduction in the size of measurable brain metastases, cancer that has spread from its site of origin.

This significant discovery was made in an extension of an earlier phase II study involving 49 patients where 20 percent of those receiving Tykerb and Xeloda experienced at least a 50 percent volume reduction in measurable brain metastases.

It is important because as many as one third of women with HER2-positive advanced breast cancer are likely to develop brain metastases.

Tykerb which is a once-daily pill, was approved by U.S. regulators in March and was given a conditional green light from the European Medicines Agency last week.

Tykerb is recommended as a treatment, in combination with Xeloda, for patients with advanced or metastatic breast cancer whose tumors over-express protein HER2.

Experts say the drug appears to prevent cancer from spreading in different ways and they are optimistic that it may signify a breakthrough in cancer treatment.

It is estimated that one third of advanced breast cancer patients who have the HER-2 gene also develop cancer in the central nervous system, including the brain; treatment options for such cancers include chemotherapy, radiation or surgery.

The results were presented at the San Antonio Breast Cancer Symposium in San Antonio, Texas.