Results from a Phase III study of a new drug show promise for patients with colorectal cancer that has spread to other parts of the body, according to a study presented today during the 97th Annual Meeting of the American Association for Cancer Research.
Investigators have shown that panitumumab improves progression-free survival in patients with metastatic colorectal cancer (mCRC) who had failed standard chemotherapy. In the randomized trial of 463 patients, those who received panitumumab with best supportive care every two weeks (231 pts) showed a 46 percent decrease in the rate of tumor progression or death versus those who received only best supportive care (232 pts). At week 24, approximately four times as many pantimumab patients were alive and progression-free versus those on best-supportive care (18 percent versus five percent). Twice as many panitumumab patients were alive and progression-free at week 32 (10 percent versus four percent).
Study investigators also reported that panitumumab significantly improved disease control. In patients who responded, the median duration of response was 17 weeks. Extended follow-up also revealed that even after 32 weeks, a larger percentage of patients in the panitumumab with best supportive care group were alive without progression than in the group assigned to best supportive care alone.
Warren Froelich | EurekAlert!
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For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.
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Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.
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Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.
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