SAN DIEGO—Patients 70 years old and younger with previously untreated chronic lymphocytic leukemia (CLL) lived longer and had progression of their disease delayed when treated with ibrutinib (an irreversible inhibitor of Bruton’s tyrosine kinase [BTK]) combined with the anti-CD 20 agent rituximab than patients in a control arm receiving standard fludarabine, cyclophosphamide and rituximab (FCR) […]