Study of the Use of Venetoclax in Participants With Chronic Lymphocytic Leukemia (CLL) Under Real-Life Setting

An observational study to assess the effectiveness, health economic-relevant costs and participant reported outcomes in participants with Chronic lymphocytic leukemia (CLL) receiving venetoclax as a monotherapy or in combination with rituximab, obinutuzumab, ibrutinib, or acalabrutinib as prescribed at the discretion of the physician and in accordance with local clinical practice and label.