What is the difference between ASCT and CAR-T therapy?

What is the difference between ASCT and CAR-T therapy?
BETA - Can MRD testing be done on a blood sample instead of a bone marrow sample in multiple myeloma?
All About Darzalex (daratumumab)
Should individuals diagnosed with Smoldering Multiple Myeloma take bone strengthening agents?
What types of chromosomal mutations are present at diagnosis? (early events) What types of chromosomal mutations can be acquired over time? (later events)