LUSC MAGE-A4HIGH tumors had a differentiated TiME profile. Our findings are consistent with an INFLAMLOWVASCLOW phenotype possibly indicative of an "immune desert" [Desbois et al 2020]. In contrast, LUAD MAGE-A4HIGH tumors had an INFLAMHIGHVASCLOW phenotype indicating that MAGE-A4 associations with TiME may be histology dependent in NSCLC.
7 months ago
Clinical
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CD8 (cluster of differentiation 8) • MAGEA4 (Melanoma antigen family A, 4)
Conclusions The high MAGE-A4 expression levels and the highly specific anti-cancer cell activity of CDR404 make it a highly attractive immunotherapy for development post-progression on ICI for patients with HLA-A*02:01+ SQ-NSCLC. A multi-tumor phase 1 trial of CDR404, including SQ-NSCLC, is expected to begin in 2024 with prospective patient selection for both HLA-A*02:01 and tumor MAGE-A4.
1 year ago
IO biomarker
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HLA-A (Major Histocompatibility Complex, Class I, A) • MAGEA4 (Melanoma antigen family A, 4)
Lack of response reported in another MAGE-A4 TCE trial (NCT03973333) where tumor screening in ovarian cancer was absent confirms that IHC selection will be essential for RNALOW tumors. In this regard, we have identified E7O1U as a highly specific MAGE-A4 antibody for precise IHC patient selection in the CDR404 trial.