Prior systemic chemotherapy or anti-EGF therapy for the study cancer; note: prior chemotherapy or anti-EGF therapy for a different cancer is allowableXx_NEWLINE_xXPrior systemic chemotherapy for the current cervical cancer; note that prior chemotherapy for a different cancer is allowableXx_NEWLINE_xXPrior systemic chemotherapy for bladder cancer; prior chemotherapy for a different cancer is allowableXx_NEWLINE_xXPatients entering on the study after pancreaticoduodenectomy, who have not already started chemotherapy must not have had prior systemic chemotherapy for pancreas cancer; note that prior chemotherapy for a different cancer is allowable; for patients entering on the study who have already received up to 3 months of adjuvant chemotherapy as per the treating institution, patients must not have received adjuvant chemotherapy with agents other than gemcitabine, nab-paclitaxel, oxaliplatin, fluoropyrimidine, or irinotecan for the current pancreatic cancer; prior chemotherapy for a different cancer is allowableXx_NEWLINE_xXPrevious or concurrent cytotoxic chemotherapy for prostate cancer; note that prior chemotherapy for a different cancer is allowableXx_NEWLINE_xXPrior sorafenib use > 60 days and/or grade 3 or 4 sorafenib related toxicity; note that prior chemotherapy for HCC or a different cancer is allowableXx_NEWLINE_xXPrior systemic chemotherapy or radiation therapy for salivary gland malignancy; note that prior chemotherapy for a different cancer is allowableXx_NEWLINE_xXPrior systemic chemotherapy or anti-epidermal growth factor (EGF) therapy for the study cancer; note that prior chemotherapy for a different cancer is allowableXx_NEWLINE_xXPrior systemic chemotherapy for the study cancer; note that prior chemotherapy for a different cancer is allowableXx_NEWLINE_xXPrior systemic chemotherapy for the study cancer, if more than 4 cycles of induction chemotherapy or more than 6 months of targeted therapy; note that prior chemotherapy for a different cancer is allowableXx_NEWLINE_xXPrior systemic chemotherapy for the study cancer; note that prior chemotherapy for a different cancer is allowable; however, at least 6-weeks recovery is necessary if the last regimen included nitrosourea or mitomycinXx_NEWLINE_xXPrior systemic chemotherapy for the study cancer; note that prior chemotherapy for a different cancer is allowableXx_NEWLINE_xXPrior chemotherapy or radiosensitizers for cancers of the head and neck region; note that prior chemotherapy for a different cancer is allowable (except temozolomide)Xx_NEWLINE_xXPrior systemic chemotherapy for the current cancer (prior chemotherapy for a different cancer is allowed)Xx_NEWLINE_xXPrior systemic chemotherapy for the study cancer; note that prior chemotherapy for a different cancer is allowable if completed more than two years prior to step 1 registration; prior androgen deprivation is allowedXx_NEWLINE_xXSystemic chemotherapy for the study cancer < 2 weeks prior to registrationXx_NEWLINE_xX