Recommendations: Patients who receive second-line therapy: Patients who are refractory to lenalidomide upfront could receive either PomVD, DaraKd, IsaKd or DaraVd [I, A]. PomVd is the approved indication with best results, in terms of PFS, as second-line therapy in lenalidomide-refractory patients. DaraKd has given the best reported PFS to date in lenalidomide-refractory patients....Similarly, IsaKd and SVd, which are also suitable for this setting [I, A]...