A Study of Carfilzomib, Lenalidomide, Dexamethasone and Daratumumab for Patients With Relapsed/Refractory Myeloma With Salvage Autologous Hematopoietic Cell Transplantation

Dara-CRd Induction Cycle 1 ONLY: Carfilzomib 20 mg/m2 per dose, days 1 and 2; Carfilzomib 27 mg/m2 per dose, days 8, 9, 15, and 16 Cycles 2-4: Carfilzomib 27 mg/m2 per dose, days 1, 2, 8, 9, 15, and 16 Dara-CRd Consolidation (60-90 days post HCT) Cycles 5-8: Carfilzomib 27 mg/m2 per dose, days 1, 2, 8, 9, 15, and 16

Dara-CRd Induction Cycles 1-4: Lenalidomide 25 mg/day, days 1-21 every 28 days Dara-CRd Consolidation (60-90 days post HCT) Cycles 5-8: Lenalidomide 25 mg/day, days 1-21 every 28 days

Dara-CRd Induction Cycles 1-4: Dexamethasone 20 mg/dose, days 1, 2, 8, 9, 15, 16, 22, 23 Dara-CRd Consolidation (60-90 days post HCT) Cycles 5-8: Dexamethasone 20 mg/dose, days 1, 2, 8, 9, 15, 16, 22, 23

"Dara-CRd Induction Cycles 1 and 2: Daratumumab 16 mg/kg weekly (days 1,8, 15, 22) Dara-CRd Consolidation (60-90 days post HCT)~Cycles 3 and 4: Daratumumab 16 mg/kg every other week, days 1 and 15.~Cycles 5-6:Daratumumab 16 mg/kg every other week, days 1 and 15. Schedule together with Carfilzomib and use scheduled dexamethasone as premed.~Cycles 7-8: Daratumumab 16 mg/kg days 1 of each cycle."

High Dose Melphalan and Autologous Hematopoietic Cell Transplantation Patients will receive Melphalan 200 mg/m2 per institutional guidelines, or if over 70 years of age or creatinine \>2mg/dL, they will receive 140 mg/m2.