Skip to main content
An official website of the United States government
Government Funding Lapse
Because of a lapse in government funding, the information on this website may not be up to date, transactions submitted via the website may not be processed, and the agency may not be able to respond to inquiries until appropriations are enacted.

The NIH Clinical Center (the research hospital of NIH) is open. For more details about its operating status, please visit cc.nih.gov.

Updates regarding government operating status and resumption of normal operations can be found at opm.gov.

anti-MASP-2 monoclonal antibody OMS721

A monoclonal antibody against mannan-binding lectin (MBL)-associated serine protease-2 (MASP-2), with potential anti-thrombotic and immunomodulating activities. Upon subcutaneous administration, OMS721 binds to and inhibits MASP-2. This prevents the activation of MASP-2, the cleavage of certain complement components, and the activation of the complement lectin pathway. This inhibits complement deposition and complement-induced thrombus formation. MASP-2, a pro-inflammatory protein, plays a key role in the activation of the lectin complement pathway, which is a key component in the immune system, and is associated with complement-mediated diseases, such as thrombotic microangiopathies (TMAs), which includes hematopoietic stem cell transplant (HSCT)-related TMA, atypical hemolytic uremic syndrome (aHUS), and thrombotic thrombocytopenic purpura (TTP).
Code name:OMS721
Search NCI's Drug Dictionary