Just found an interesting article about Duke doing some molecular tinkering that apparently doubles the efficiency of paclitaxel in other cancers. Its interesting to see how they take advantage of the tumor's acidic environment to deliver the drug.
http://www.rdmag.com/news/2015/08/molecular-tinkering-doubles-cancer-drugs-efficacy?et_cid=4715965&et_rid=54752377&location=top
-Seth