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Mayo Clinic: 2-drug combination may slow deadly thyroid cancer
Date:1/8/2013

s multiply in time-lapse video under a microscope, researchers noted that the drug combination resulted in abnormal cell division and an increase in ATC cell death. Although pazopanib had not been known to specifically affect cell division, researchers speculated that the drug might have another unrecognized molecular target within cancer cells.

"We ended up learning that pazopanib also happens to inhibit a protein involved in cell division known as aurora A; this property seems to be involved in producing enhanced effects when pazopanib is combined with paclitaxel," Dr. Bible says. "This finding suggests that the combination may also be useful in treating other cancers, such as breast cancer, in which aurora A is sometimes found to be present in elevated amounts, as it is in ATC," Dr. Bible says.

The results also prompted an ongoing randomized multicenter clinical trial, led by Mayo Clinic and Memorial Sloan-Kettering Cancer Center and administered through the Radiation Therapy Oncology Group, testing the two-drug combination when added to radiation therapy in the initial treatment of patients with anaplastic thyroid cancer.

"This important next step is designed to determine whether the combination of drugs will improve ATC patient survival compared to paclitaxel alone," Dr. Bible says.


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Contact: Joe Dangor
newsbureau@mayo.edu
507-284-5005
Mayo Clinic
Source:Eurekalert

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