What were the treatment arms compared in the first part of the GMMG HD7 trial?
Bortezomib-lenalidomide-dexamethasone (VRd) versus isatuximab-VRd
Lenalidomide-dexamethasone versus bortezomib-lenalidomide-dexamethasone
Daratumumab-VRd versus isatuximab-VRd