What is the difference between an umbrella trial and a basket trial?

What is the difference between an umbrella trial and a basket trial?
BETA - Should GPRC5D expression be quantified before treatment?
BETA - Sequencing BCMA and GPRC5D Therapies in Multiple Myeloma: What the Data Shows
BETA - How is GPRC5D being targeted in myeloma?
BETA - Why do antibody therapies stop working — understanding resistance?
BETA - Where do checkpoint inhibitors currently fit in multiple myeloma treatment today?
BETA - What are checkpoint inhibitors?
BETA - What is GPRC5D? What makes it a good target in myeloma?
Are there different types of CMML and what are those different types?
How do bispecifics differ from CAR-T cell therapy in terms of effectiveness and side effects?