Lenalidomide (sodium), a Thalidomide derivative, serves as a molecular glue and an orally active immunomodulator. It acts as a cereblon (CRBN) ligand and triggers selective ubiquitination and subsequent degradation of the lymphoid transcription factors IKZF1 and IKZF3 via the CRBN-CRL4 ubiquitin ligase. Echoing its specificity, Lenalidomide (sodium) inhibits the proliferation of mature B-cell lymphomas, notably multiple myeloma, and promotes IL-2 secretion from T cells [1] [2].