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.

oral therapeutic vaccine V3-X

An orally bioavailable therapeutic vaccine consisting of the tumor-associated antigen (TAA) oligosaccharide antigen sialyl Lewis A (CA19-9; sialylated Lewis A antigen; carbohydrate antigen 19-9; cancer antigen 19-9), with potential immunostimulating and antineoplastic activities. Upon oral administration, oral therapeutic vaccine V3-X induces a cytotoxic T-lymphocyte (CTL)-mediated immune response against tumor cells expressing CA19-9. CA19-9 is an antigen that is overexpressed in a variety of cancer cell types, and plays a key role in tumor cell survival and metastasis.
Synonym:CA19-9 oral vaccine V3-X
V3-X vaccine
Code name:V 3X
V3-X
Search NCI's Drug Dictionary