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RedHill's Opaganib Enhances Efficacy of Neuroblastoma Chemo Combination and Augment Anti-Tumor Immunity in Triple-Negative Breast Cancer in Preclinical Studies - New Data Presented at AACR 2026
New preclinical data, independently presented in two posters at the 2026 American Association for Cancer Research (AACR) Annual Meeting, show positive effects of opaganib [1] as potential add-on therapy in models of neuroblastoma (NB) and triple-negative breast cancer (TNBC) The positive NB data from studies undertaken by Penn State University's Jeremy Hengst and Apogee Biotechnology, and funded by the Beat Childhood Cancer Foundation and Four Diamonds, indicate that opaganib may enhance the therapeutic efficacy of the oxaliplatin + doxorubicin (OXDOX) chemotherapy combination in high-risk NB by directly destabilizing n-Myc, a key oncogenic driver of neuroblastoma and other solid tumors, through increased ceremide production enhancing programmed cell death (apoptosis) in cancer cells [2] A second poster from University of Kansas' Colette Worcester describes in vitro model data showing that pre-treatment with opaganib, followed by low-dose diABZI treatment, potentiated the downstream STING-mediated effects and may augment anti-tumor immunity in TNBC, which has the poorest prognosis of the breast cancer subtypes [3] Opaganib, a novel, potentially broad acting, oral, small molecule drug with demonstrated safety & efficacy profiles [4] , is in development for multiple oncology, viral, inflammatory and diabetes and obesity-related indications RALEIGH, N.C., and TEL-AVIV, Israel, April 22, 2026 /PRNewswire/ -- RedHill Biopharma Ltd.