Inclusion:
- Received CAR-T infusion
- Had 1 or more follow-up provider visits
- Over 18 years of age
Exclusion:
- Diagnosed with amyloid light-chain amyloidosis any time before CAR-T infusion
- Had any invasive malignancy other than multiple myeloma prior to the CAR-T infusion
- Currently in a clinical trial receiving cohort treatment
