 - Screening laboratory values: platelets 50 x 109L, neutrophils1.0 x 109L, Creatinine 1.5 X upper normal limit unless normal creatinine clearance, total bilirubin 1.5 X upper normal limit, ALT 2.5 X upper normal limit unless due to liver involvement of CLL, alkaline phosphase 2.5 X upper normal limit 