This study is a single-center, Phase IV clinical trial designed to collect and analyze data on the efficacy and safety of zanubrutinib as maintenance therapy following CAR-T cell therapy in subjects with non-Hodgkin B-cell lymphoma.

Inclusion Criteria:

• (1) Age ≥ 18 years, no gender restrictions; (2) Expected survival time exceeding 12 weeks; (3) Cytologically or histopathologically confirmed diagnosis of non-Hodgkin B-cell lymphoma according to WHO 2016 criteria; (4) Platelet count ≥ 50 × 10⁹/L; (5) Currently undergoing or scheduled to initiate oral zanubrutinib maintenance therapy following autologous or allogeneic CAR-T cell therapy; (6) Able to understand this trial and has signed an informed consent form.

Exclusion Criteria:

• (1) Pregnant or lactating individuals; male subjects planning to conceive within one year of treatment or within one year after cell reinfusion, or whose partners plan to conceive within one year after cell reinfusion; (2) Individuals with medical conditions that affect their ability to sign a written informed consent form or comply with study procedures; or those unwilling or unable to adhere to study requirements; (3) Individuals deemed unsuitable for participation in this trial by the investigator.

  1. Pregnant or lactating individuals; or male subjects planning to conceive within one year of treatment or within one year after cell infusion, or whose partners plan to conceive within one year after cell infusion; (2) Individuals with medical conditions that prevent signing a written informed consent form or complying with study procedures; or those unwilling or unable to comply with study requirements; (3) Individuals deemed unsuitable for this trial by the investigator.

Patients who achieve remission (complete or partial) at the 3-month post-CAR-T infusion assessment