In contrast, blinatumomab (CD19/CD3; B-cell acute lymphoblastic leukemia), a non-BCMA bispecific T-cell engager, was associated with a variety of cutaneous reactions including eczema, psoriasis, seborrheic dermatitis, acne, folliculitis, dermatitis, and panniculitis.9 The gene discussed is CD19; the disease is acne.