Serum creatinine =< 1.5 mg/dL within 14 days prior to study entryXx_NEWLINE_xXIf the patient is to be treated with cisplatin, the serum creatinine should be =< 1.5 mg%Xx_NEWLINE_xXSerum creatinine =< 2 mg/dLXx_NEWLINE_xXCreatinine =< 1.5 mg/dLXx_NEWLINE_xXSerum creatinine level =< IULN within 28 days prior to registrationXx_NEWLINE_xXSerum creatinine =< 1.5 x IULN obtained within 28 days prior to registrationXx_NEWLINE_xXSerum creatinine of =< 1.5 mg/dL; if creatinine > 1.5 mg/dL, creatinine clearance must be >= 60 mL/minuteXx_NEWLINE_xXSerum creatinine < 2.0 mg/dlXx_NEWLINE_xXObtained =< 48 hours prior to registration: Serum creatinine =< 2.0 mg/dlXx_NEWLINE_xXCreatinine less than 1.4 mg/dlXx_NEWLINE_xXCreatinine =< 2.0 mg/dLXx_NEWLINE_xXCreatinine =< 2.0 mg/dLXx_NEWLINE_xXPatients must have serum creatinine =< 1.5 mg/dl within 14 days prior to registrationXx_NEWLINE_xXSerum creatinine =< 1.5 mg/dl within 14 days prior to registrationXx_NEWLINE_xXRegistration Step 3 � Maintenance: Patients must have serum creatinine =< 1.5 mg/dl within 14 days prior to registrationXx_NEWLINE_xXPatients with serum creatinine > 3.0 mg/dL and patients on active dialysis for renal dysfunction are excludedXx_NEWLINE_xXWithin 14 days of registration: Serum creatinine < 2.0 mg/dL (176.8 umol/liter)Xx_NEWLINE_xXWithin 14 days of registration: Serum calcium =< 11.5 mg/dLXx_NEWLINE_xXSerum creatinine =< IULN within 14 days prior to registrationXx_NEWLINE_xXCreatinine =< 2.0 mg/dLXx_NEWLINE_xXCreatinine < 1.5 mg/dl (= 132 umol/L) orXx_NEWLINE_xXCreatinine < 1.7 mg/dLXx_NEWLINE_xXPatients must have adequate renal function with serum creatinine level =< IULN within 21 days prior to registrationXx_NEWLINE_xXWithin 14 days prior to registration: Serum creatinine =< 2.0 mg/dLXx_NEWLINE_xXWithin 28 days prior to registration: Serum creatinine =< 2.0 x IULNXx_NEWLINE_xXSerum creatinine < 2.0 x IULN within 28 days prior to registrationXx_NEWLINE_xXCreatinine < 2 mg/dlXx_NEWLINE_xXCreatinine =< 1.6 mg/dlXx_NEWLINE_xXSerum creatinine =< 2.0 x IULN within 28 days prior to registrationXx_NEWLINE_xXSerum creatinine < 1.5 mg/dlXx_NEWLINE_xX