First-line therapy for young patients with CLL

A 61-year-old man with a history of chronic lymphocytic leukemia (CLL) presents with complaints of worsening fatigue and night sweats. He was diagnosed with CLL 3 years ago on routine blood count testing. He has no major medical comorbidities. On examination, he has several 2- to 3-cm lymph nodes in the cervical and axillary area. Spleen is palpable 5 cm below the costal margin. Blood counts show lymphocytosis with thrombocytopenia and anemia. Prognostic markers include deletion 13q by fluorescence in situ hybridization analysis and mutated IGHV You are asked by the hematology fellow you are supervising about the best treatment of this patient.