Geriatric Assessment Guided Interventions to Accelerate Functional Recovery After CAR-T Therapy for Patients 60 Years and Older With B-cell Non-Hodgkin Lymphoma or Multiple Myeloma, GOCART Study

Inclusion Criteria: * Ability to provide informed consent * Patient's physician must agree for patient participation. A physician may elect to provide blanket agreement for participation of any eligible CAR-T patient under their care * Ability to read English, or Spanish. Other languages will be acceptable with site principal investigator (PI) agreement if surveys are available and language does not preclude completing study procedures * Age: \>= 60 years at the time of enrollment * Scheduled to receive an Food and Drug Administration (FDA)-approved CAR-T for treatment of multiple myeloma or B-cell non- Hodgkin lymphoma * Willing and able to complete study requirements * Patients expect to be able to participate at least once before lymphodepletion with trimodality optimization visits Exclusion Criteria: * Prior CAR-T therapy * Any condition that would, in the Investigator's judgment, contraindicate the patient's participation in the clinical study due to safety concerns with clinical study procedures * Prospective participants who, in the opinion of the investigator, may not be able to comply with all study procedures (including compliance issues related to feasibility/logistics)