EGFR tyrosine kinase inhibitor targeting EGFR-mutant signaling in tumor cells.
Third‑generation, oral, irreversible EGFR tyrosine kinase inhibitor that covalently binds mutant EGFR (e.g., T790M, L858R, exon 19 deletions) at Cys797, selectively blocking EGFR signaling (MAPK/PI3K pathways) to inhibit proliferation and induce tumor cell death, with reduced activity against wild‑type EGFR.
YES
DIRECT
Osimertinib irreversibly binds the EGFR T790M-mutant kinase (Cys797), inhibits EGFR signaling (MAPK/PI3K-AKT), leading to growth arrest and apoptosis of EGFR-mutant tumor cells.
A NECTIN-4–targeted antibody–drug conjugate delivering MMAE, a microtubule inhibitor that causes cell-cycle arrest and apoptosis.
Nectin-4–targeted monoclonal antibody–drug conjugate that binds Nectin-4 on tumor cells, is internalized, and releases the microtubule inhibitor MMAE after linker cleavage, leading to tubulin depolymerization, G2/M cell-cycle arrest, and apoptosis in Nectin-4–expressing cancer cells.
NO
INDIRECT
Enfortumab vedotin targets Nectin-4 on tumor cells; after internalization it releases MMAE, which binds tubulin to depolymerize microtubules and cause G2/M arrest and apoptosis. Tubulin is the intracellular effector, not the targeting antigen determining which cells are killed.
Autologous gene-modified T lymphocytes engineered to express a chimeric antigen receptor that recognizes CD19 and targets within the BAFF (BLyS) axis (e.g., BAFF-R/TACI/BCMA), enabling activation and cytolytic depletion of pathogenic B cells/plasmablasts to reduce BCR signaling, germinal center activity, and autoantibody production in refractory autoimmune disease.
Autologous T cells engineered with a chimeric antigen receptor that recognizes CD19 and BAFF-axis receptors (BAFF-R/TACI/BCMA), leading to antigen-dependent activation and cytolytic elimination of B cells and plasmablasts. This depletes pathogenic B-lineage cells, disrupts BAFF-mediated survival signals, and reduces BCR signaling, germinal center activity, and autoantibody production in autoimmune disease.
YES
DIRECT
CAR T cells recognize CD19 on target cells, become activated, and kill them via perforin/granzyme-mediated cytolysis (and Fas–FasL apoptosis).