Wiktionary
elsilimomab
n. A mouse monoclonal antibody used as an immunosuppressive drug.
Wikipedia
Elsilimomab
Elsilimomab (also known as B-E8) is a mouse monoclonal antibody and an immunosuppressive drug.
It (OPR-003) targets (and blocks) Interleukin-6.
It has undergone a number of early stage clinical trails, e.g. for lymphoma and myeloma.
It was used as a template to develop a high-affinity, antagonist, fully human anti-IL-6 mAb 1339.