Clinical trial identification NCT04859777. The biomarker data are consistent with the purported mechanism. The results warrant advancing to study Part B in combination with pembrolizumab.
over 1 year ago
P1 data • PD(L)-1 Biomarker • IO biomarker • Metastases
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PD-L1 (Programmed death ligand 1) • CD8 (cluster of differentiation 8) • IFNG (Interferon, gamma) • MALT1 (MALT1 Paracaspase)
Activity in syngeneic tumor models and human PDOTS was likely mediated by induction of tumor-associated Treg fragility. This translational study supports ongoing clinical investigations (ClinicalTrials.gov Identifier: NCT04859777) of MPT-0118, (S)-mepazine succinate, in patients with advanced or metastatic treatment-refractory solid tumors.
MPT-0118 Treg reprogramming represents a novel strategy with the potential to mitigate the critical problem of low ICT response rates in solid tumors. MPT-0118 recently started a phase 1/1b dose-escalation and cohort-expansion clinical trial.