P34 LIGHTHOUSE (OP-108): MELFLUFEN PLUS DARATUMUMAB (DARA) AND DEXAMETHASONE (DEX) VERSUS DARA IN RELAPSED/REFRACTORY MULTIPLE MYELOMA (RRMM) REFRACTORY TO AN IMMUNOMODULATORY DRUG (IMID) AND A PROTEASOME INHIBITOR (PI) OR HAD RECEIVED ≥3 PRIOR LINES OF THERAPY INCLUDING AN IMID AND A PI | Publicación