Pfizer is most certainly one of the pharmaceuticals that is interested in Kevetrin. Please recall this news from early 2013...(Sunitinib is a Pfizer drug) Research by Beth Israel Deaconess Medical Center (BIDMC) combined Kevetrin™ with sunitinib on cell line 786, a drug-resistant renal cancer. Cellceutix was advised by the researchers that “the Kevetrin/sunitinib combination is the first we’ve used in which actual tumor shrinkage is noted.” http://www.ipharminc.com./press-release/2016/11/17/cellceutix-reports-in-vivo-tumor-shrinkage-in-renal-cancer