Abstract
The abscopal effect is a phenomenon in which local radiotherapy is associated with the regression of metastatic cancer at a distance from the irradiated site. The abscopal effect may be mediated by activation of the immune system. Ipilimumab is a monoclonal antibody that inhibits an immunologic checkpoint on T cells, cytotoxic T-lymphocyte-associated antigen 4 (CTLA-4). We report a case of the abscopal effect in a patient with melanoma treated with ipilimumab and radiotherapy. Temporal associations were noted: tumor shrinkage with antibody responses to the cancer-testis antigen NY-ESO-1, changes in peripheral-blood immune cells, and increases in antibody responses to other antigens after radiotherapy. (Funded by the National Institutes of Health and others.)
Original language | English (US) |
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Pages (from-to) | 925-931 |
Number of pages | 7 |
Journal | New England Journal of Medicine |
Volume | 366 |
Issue number | 10 |
DOIs | |
State | Published - Mar 8 2012 |
Externally published | Yes |
ASJC Scopus subject areas
- General Medicine