Gamma heavy chain disease treated with daratumumab-based regimen: a first case report and review of literature.

We report on the use of a daratumumab-CHOP regimen for treatment of gamma heavy chain disease (γHCD) in a 79-year-old woman. γHCD is a very rare hematological disease, often associated with an underlying lymphoproliferative disorder. Only a few cases are reported in the literature, and, therefore, strong evidence is lacking regarding new therapeutic strategies. We attempted a treatment with a monoclonal anti-CD38 antibody in association with conventional chemothorapy, due to CD38 expression by clonal cells. This is the first reported case in the literature, in a disease in which very few novel strategies have recently emerged.