Results from the first and only interim analysis of an important trial assessing the potential of Herceptin (trastuzumab) to improve disease-free survival (DFS) in HER-2 positive breast cancer patients after adjuvant chemotherapy, have shown that Herceptin affords a significant survival advantage. These new findings were released at the 13th European Cancer Conference (ECCO) on the recommendation of the Independent Data Monitoring Committee.
The study in question, an international, multicentre, randomised, 3-arm trial is being conducted by the Breast International Group (BIG) in collaboration with the pharmaceutical company Roche AG, manufacturers of Herceptin. In total, 5,090 early breast cancer patients have been enrolled into this trial by the 478 participating institutions from Europe, Canada, South Africa, Israel, the Asia Pacific Region, Japan and Latin America. All women accrued had HER-2 positive breast cancer (either node negative or positive) and had completed at least four cycles of an acceptable (neo) adjuvant chemotherapy regimen. For women with hormone receptor positive disease, adjuvant endocrine therapy (most commonly tamoxifen) followed chemotherapy. The average age of study participants is 49 years.
The aim of this trial is to compare the effect of 1 year of Herceptin infusions, given every 3 weeks, with one year of simple observation, on survival – primarily DFS but also overall survival (OS), relapse-free survival (RFS) and distant disease free survival (DDFS), as well as comparable assessment of overall and cardiac safety. The study also consists of a 2-year arm – where 2 years of 3-weekly Herceptin is being compared with observation.
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Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.
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Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.
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A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.
Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...
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