A Study of Patients With Relapsed/Refractory Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma Treated With Lisocabtagene Maraleucel in the Post-Marketing Setting

Inclusion Criteria: • Participants must have been treated in the post-marketing setting with ≥1 infusion of lisocabtagene maraleucel used for the treatment of relapsed/refractory (R/R) chronic lymphocytic leukemia (CLL) or small lymphocytic lymphoma (SLL) within the approved indication and dosage per the United States Prescribing Information (USPI) and product specifications approved for commercial release in the USA Exclusion Criteria: * Participants known to be participating in investigational studies at the time of lisocabtagene maraleucel infusion * Patients treated with non-conforming CAR T-cell product