Triple-negative breast cancer (TNBC) is a highly aggressive subtype affecting 15%-20% of breast cancer patients. TNBC patients harboring breast cancer susceptibility gene 1/2 (BRCA1/2) mutations have shown improved therapeutic response to poly(ADP-ribose) polymerase (PARP) inhibitors (PARPi).

T cell-engaging bispecific antibodies (TCEs) are engineered molecules designed to bring cytotoxic T cells into proximity with tumor cells, triggering a targeted, antigen-dependent immune attack. However, TCE may activate T cells in healthy tissues, leading to off-tumor toxicity.

G1 to S phase transition 1 (GSPT1) is a protein involved in cell cycle progression, translation termination, and protein homeostasis, and its overexpression has been implicated in various cancers. Although GSPT1 is considered a promising therapeutic target, the lack of conventional ligand-binding pockets has historically rendered it undruggable.

IL-2 is clinically validated as an immunotherapeutic, but its use is limited by toxicity issues. AZD-6750 is an approach from Astrazeneca plc that applies cis-guiding to deliver a modified IL-2 mutein to CD8+ T cells.

Treatment in glioblastoma usually fails due to tumor heterogeneity and persistence of glioblastoma multiforme stem-like cells (GSCs) within the tumor margin. Researchers from Trogenix Ltd. engineered TGX-007, an AAV1-mediated therapeutic that delivers both cytotoxic and immunomodulatory genetic payloads to the tumor.