NCI Drug Dictionary

The NCI Drug Dictionary contains technical definitions and synonyms for drugs/agents used to treat patients with cancer or conditions related to cancer. Each drug entry includes links to check for clinical trials listed in NCI's List of Cancer Clinical Trials.

anti-CTLA-4/OX40 bispecific antibody ATOR-1015
A bispecific antibody consisting of a cytotoxic T-lymphocyte-associated antigen 4 (CTLA-4) inhibitory protein fused to an OX40 agonistic human immunoglobulin G1 (IgG1) antibody, with potential immunostimulating and antineoplastic activities. Upon administration, anti-CTLA-4/OX40 bispecific antibody ATOR-1015 simultaneously binds to CTLA-4 and OX40, which may inhibit CTLA-4-mediated downregulation of T-cell activation and induce proliferation of memory and effector T lymphocytes via OX40 activation. Both CTLA-4, an inhibitory receptor and member of the immunoglobulin superfamily (IgSF), and OX40, a cell surface glycoprotein and member of the tumor necrosis factor receptor superfamily (TNFRSF), are overexpressed by regulatory T cells (Tregs) in the tumor microenvironment. ATOR-1015 may reduce the number of Tregs and promote the activation of effector T cells, thereby enhancing the immune-mediated anti-tumor response. Check for active clinical trials using this agent. (NCI Thesaurus)

Synonym:CTLA-4 x OX40 bispecific antibody ATOR-1015
Code name:ADC 1015
ATOR 1015