RT Journal Article T1 The Five “Ws” of Frailty Assessment and Chronic Lymphocytic Leukemia: Who, What, Where, Why, and When A1 González Gascón y Marín, Isabel A1 Ballesteros Andrés, Mónica A1 Martínez Flores, Sara A1 Rodríguez Vicente, Ana Eugenia A1 Pérez Carretero, Claudia A1 Quijada Álamo, Miguel A1 Rodríguez Sánchez, Alberto A1 Hernández Rivas, José Ángel AB Chronic lymphocytic leukemia (CLL) is a disease of the elderly, but chronological age does not accurately discriminate frailty status at the inter-individual level. Frailty describes a person’s overall resilience. Since CLL is a stressful situation, it is relevant to assess the patient´s degree of frailty, especially before starting antineoplastic treatment. We are in the era of targeted therapies, which have helped to control the disease more effectively and avoid the toxicity of chemo (immuno) therapy. However, these drugs are not free of side effects and other aspects arise that should not be neglected, such as interactions, previous comorbidities, or adherence to treatment, since most of these medications are taken continuously. The challenge we face is to balance the risk of toxicity and efficacy in a personalized way and without forgetting that the most frequent cause of death in CLL is related to the disease. For this purpose, comprehensive geriatric assessment (GA) provides us with the opportunity to evaluate multiple domains that may affect tolerance to treatment and that could be improved with appropriate interventions. In this review, we will analyze the state of the art of GA in CLL through the five Ws. PB MDPI SN 2072-6694 YR 2023 FD 2023 LK https://hdl.handle.net/20.500.14352/103464 UL https://hdl.handle.net/20.500.14352/103464 LA eng NO Instituto de Salud Carlos III NO Junta de Castilla y León NO Fundación Mutua Madrileña NO Red Temática de Investigación Cooperativa en Cáncer NO Centro de Investigación Biomédica en Red de Cáncer NO Fundación Española de Hematología y Hemoterapia DS Docta Complutense RD 19 ene 2026