Documented progression on and/or intolerance/hypersensitivity to both paclitaxel and irinotecan (Part B only) Known hypersensitivity or intolerance to metformin Known hypersensitivity/intolerance to capecitabine, infusional -flurouracil, or bevacizumab Known or suspected intolerance or hypersensitivity to IT- or any of the stated ingredients. Known hypersensitivity or intolerance to metformin Known hypersensitivity or intolerance to any of the agents under investigation Known hypersensitivity or intolerance to any of the agents under investigation History of intolerance or hypersensitivity to study drug Intolerance or hypersensitivity to octreotide Have a history of hypersensitivity to any study drugs or their excipients, or intolerance to hydration due to preexisting pulmonary or cardiac impairment, or intolerance to opioid pain medications, or a history of severe hypersensitivity to any other antigen. Known hypersensitivity or intolerance to dexamethasone Patients with known hypersensitivity or intolerance to melphalan Known hypersensitivity or intolerance to metformin Known intolerance of or hypersensitivity to fosbretabulin History of hypersensitivity or severe intolerance to azoles Known hypersensitivity or intolerance to metformin No known hypersensitivity or intolerance to metformin Known intolerance, hypersensitivity, or contraindication to glucocorticoids. Subject has intolerance or hypersensitivity to iron or dextran compounds or to SiennaXP. Known hypersensitivity or intolerance to itraconazole or similar class agents.