Study of CAR-T Therapy in Older Patients

Inclusion Criteria: * are ≥60 years old (all cohorts) * have pathologically confirmed, relapsed refractory lymphoid malignancy or plasma cell disorder receiving a commercial CAR T-cell product (all cohorts) * able to speak and understand English (cohort 1 and 4 only) * have a MoCA score of less than 26 out of 30 during the GA visit by a geriatrician prior to CAR T-cell treatment (cohort 4 only) Exclusion Criteria: * Any prior commercial or investigational CAR T therapy (all cohorts) * Current diagnosis of major Axis I psychiatric disorder (DSM-IV), major depression, bipolar disorder, or schizophrenia, as per medical records or patient report (cohort 1 only) * History of a neurological disorder, neurodegenerative disease, or traumatic brain injury with loss of consciousness (\>60 minutes), as per medical records or patient report (cohort 1 only) * Current ongoing substance abuse and/or history of substance abuse, as per medical records or patient report (cohort 1 only) * History of CNS disease (cohort 4 only)