Hi and welcome to the forum.
As you say yourself, Isa-VRd is relatively new, so not many people have had it yet.
I had DVRd in 2023, with D = Daratumumab, which is similar to Isatuximab (both are immunotherapy targetting the CD38 antigen in myeloma cells). I am still in remission.
What side effects are you experiencing?
Regards
Rabbit