Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) =< 2.5 x upper limit of normal (ULN); if liver metastases are present, =< 5 x ULN Aspartate aminotransferase (AST) or alanine aminotransferase (ALT) < 3 x institutional ULN Aspartate aminotransferase (AST), alanine aminotransferase (ALT) =< grade 1 Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) =< 10 x ULN Patients must have aspartate aminotransferase (AST)/alanine aminotransferase (ALT) =< 5 x IULN, unless due to lymphoma, within 42 days prior to registration TREATMNET: Aspartate aminotransferase (AST) =< 3 x upper limit of normal Aspartate aminotransferase (AST)/alanine aminotransferase (ALT) < 2.5 times the institutional ULN (unless elevated secondary to lymphomatous involvement of the liver, in which case the AST/ALT must be =< 5 times the institutional ULN) Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) =< 3.0 x ULN Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) =< 3.0 times institutional upper limit of normal with or without liver metastasis, within 21 days prior to study entry Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) =< 1.5 x institutional upper limit of normal (IULN) within 28 days prior to registration Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) < 6 times upper limit of normal (ULN); obtained within 14 days prior to study entry Obtained =< 7 days prior to registration: Aspartate aminotransferase (AST) or alanine aminotransferase (ALT) =< 3 x institutional ULN Serum alanine aminotransferase (ALT), aspartate aminotransferase (AST) > 2.5 x ULN Aspartate aminotransferase (AST) or alanine aminotransferase (ALT) < 3 x the institutional ULN Aspartate aminotransferase (AST) or alanine aminotransferase (ALT) < 3 x institutional ULN within 14 days prior to registration Aspartate aminotransferase (AST)/alanine aminotransferase (ALT) =< 2.5 x upper limit of normal (ULN) within 14 days prior to registration Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) =< 2.5 x ULN Aspartate aminotransferase (AST)/alanine aminotransferase (ALT) =< 2.5 x upper limit of normal (ULN) obtained within 2 weeks prior to registration Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) =< 2.5 x IULN (or < 5 x IULN for patients with known liver metastases) Serum alanine aminotransferase (ALT) < 2.5 x ULN Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) =< 2.5 x institutional ULN Aspartate aminotransferase (AST)/alanine aminotransferase (ALT) within =< 3 x upper limit of normal Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) < 2.5 x the upper limit of normal Alanine aminotransferase (ALT) =< 2.5 x the upper limit of institutional normal Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) < 2.5 x upper limits of normal (ULN) Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) =< 2.5 x institutional ULN Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) =< 2.5 x institutional ULN, within 2 weeks of the first dose of study treatment Alanine aminotransferase level (ALT) =< 3 x the upper limit of normal (ULN), within 30 days prior to enrollment Aspartate aminotransferase level (AST) =< 3 x ULN, within 30 days prior to enrollment Obtained =< 48 hours prior to registration: Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) < 3 x upper limit of normal (ULN) Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) less than or equal to 3 x ULN Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) =< 2.5 x institutional ULN Alanine aminotransferase (ALT) =< 3 x ULN within 14 days prior to study registration Aspartate aminotransferase (AST) =< 3 x ULN within 14 days prior to study registration Either alanine aminotransferase (ALT) or aspartate aminotransferase (AST) =< 2 x IULN within 28 days prior to sub-study registration (if both ALT and AST are done, both must be =< 2 IULN); for patients with liver metastases, either ALT or AST must be =< 5 x IULN (if both ALT and AST are done, both must be =< 5 x IULN) Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) =< 2.5 times upper limit of normal Aspartate aminotransferase (AST) or alanine aminotransferase (ALT) =< 1.5 x institutional ULN, within 21 days prior to registration Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) < 3 x the institutional upper limit of normal Aspartate aminotransferase (AST) =< 2.5 x upper limit of normal (ULN) If liver metastases present, aspartate aminotransferase (AST) and alanine aminotransferase (ALT) must be < 3 x upper limit of normal (ULN) Transaminases (alanine aminotransferase [ALT], aspartate aminotransferase [AST]) =< 2.5 x institutional upper limit normal Liver transaminases (alanine aminotransferase [ALT], aspartate aminotransferase [AST]) greater than 3 times the upper limit of normal Patients must have aspartate aminotransferase (AST) and alanine aminotransferase (ALT) =< 3.0 x institutional upper limit of normal (IULN) within 14 days prior to registration Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) =< 3 x ULN Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) =< 2.5 x institutional ULN Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) =< 2.5 x IULN (or < 5 x IULN for patients with known liver metastases) Serum aspartate aminotransferase (AST) and serum alanine aminotransferase (ALT) =< 2.5 x upper limit of normal (ULN) Aspartate aminotransferase (AST)/alanine aminotransferase (ALT) =< 2.5 upper limits of normal (ULN)* Unless due to hepatic metastases in which case levels =< 5 x ULN are allowed Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) =< 3 x ULN (=< 5 x ULN for patients with documented liver metastases) Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) =< 2.5 x institutional ULN Obtained within 28 days prior to registration: Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) =< 2.5 x IULN (or =< 5 x IULN for patients with known liver metastases) Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) =< 3 x ULN Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) =< 3 x ULN (=< 5 x ULN for patients with documented liver metastases) Within 6 weeks prior to randomization: Aspartate aminotransferase (AST) must be =< 1.5 x ULN for the lab* Note: If alanine aminotransferase (ALT) is performed instead of AST (per institution's standard practice), the ALT value must be =< 1.5 x ULN; if both were performed, the AST must be =< 1.5 x ULN Re-registration: AST/ALT =< 3 x ULN Within 14 days of registration: Aspartate aminotransferase (AST) =< 2.5 x upper limits of normal (ULN) Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) < 2.5 x ULN (values post biliary stenting allowed for eligibility) Aspartate aminotransferase (AST)/alanine aminotransferase (ALT) =< 2.5 x upper limit of normal (ULN) Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) =< 3 x upper limit of normal (ULN) Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) both =< 2.5 x IULN Aspartate aminotransferase (AST) or alanine aminotransferase (ALT) =< 3.0 x upper limits of normal (ULN) Aspartate aminotransferase (AST)/alanine aminotransferase (ALT) =< 3.0 upper limit of normal (ULN) Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) =< 2.5 x ULN Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) =< 2.5 x institutional upper limit of normal (IULN) (or =< 5 x IULN if liver metastases are present) Aspartate aminotransferase (AST)/alanine aminotransferase (ALT) =< 3 x upper limit of normal (ULN); if liver metastases, =< 5 x upper limit of normal (ULN) Within 14 days prior to registration: Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) =< 2.5 x IULN; patients with liver metastases may have AST and ALT of =< 5.0 x IULN CLINICAL/LABORATORY CRITERIA: Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) =< 2.5 x IULN (or =< 5 x IULN for patients with known liver metastases); these results must be obtained within 28 days prior to registration Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) < 3 x the upper limit of normal Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) =< 3 x ULN, within 14 days prior to registration Aspartate aminotransferase (AST) must be =< 3 x ULN for the lab within 28 days before randomization;* Note: if alanine aminotransferase (ALT) is performed instead of AST (per institution's standard practice), the ALT value must be =< 3 x ULN; if both were performed, the AST must also be =< 3 x ULN; if AST and/or ALT is >= ULN but =< 3 x ULN, serologic testing for hepatitis B and C must be performed and results for viral infection must be negative Serum aspartate aminotransferase (AST) and/or alanine aminotransferase (ALT) > 3 times upper limit of institutional normal Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) =< 3 x ULN Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) =< 2.5 x ULN, within 4 weeks of randomization Aspartate aminotransferase (AST) / alanine aminotransferase (ALT) =< 2.5 X upper limit of normal (ULN) Obtained within 28 days prior to registration: Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) =< 2.5 x IULN (or < 5 x IULN for patients with known liver metastases) Alanine aminotransferase (ALT) =< 3.0 X ULN Aspartate aminotransferase (AST) or alanine aminotransferase (ALT) < 1.5 x the upper limit of normal Within 28 days prior to registration: Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) both =< 3 x IULN Within 14 days prior to registration: Aspartate aminotransferase (AST)/alanine aminotransferase (ALT) =< 3 x ULN (AST and/or ALT =< 5 x ULN for patients with liver involvement) Aspartate aminotransferase (AST) or alanine aminotransferase (ALT) =< 2 x IULN Within less than or equal to 14 days prior to registration: Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) =< 2.5 x ULN Aspartate aminotransferase (AST)/alanine aminotransferase (ALT) =< 2.5 x upper limit of normal (ULN) Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) =< 2.5 x institutional ULN Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) both < 2.5 x IULN within 28 days prior to registration Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) =< 2.5 x institutional ULN Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) =< 2.5 x institutional ULN Aspartate aminotransferase (AST), alanine aminotransferase (ALT) =< 3 x upper limit of normal (ULN), unless suspected leukemic involvement of the liver Transaminases (aspartate aminotransferase [AST] and alanine aminotransferase [ALT]) < 6 x institutional ULN Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) =< 2.5 x IULN (=< 5 x IULN secondary to lymphoma) within 28 days prior to registration Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) both =< 5 x IULN within 28 days prior to registration Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) =< 3 x ULN Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) =< 2.5 x institutional ULN within 30 days of day 1 of study