This is a phase I, open-label, single-arm, single-center, dose-escalation study to evaluate the safety, tolerability, and preliminary anti-tumor activity of NCP-IL-22BP mRNA, a non-cationic peptide-delivered mRNA encoding interleukin-22 binding protein (IL-22BP), administered by intratumoral injection in patients with advanced malignant solid tumors who have failed second-line therapy. The study employs a classical "3+3" dose-escalation design with three dose levels (25 μg, 50 μg, and 100 μg mRNA). Each subject will receive 5 doses at weekly intervals. The primary objective is to assess the safety and tolerability of NCP-IL-22BP mRNA, and the secondary objective is to evaluate its preliminary anti-tumor activity.
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This ClinicalTrials.gov record has been amended once since 2026-04-24.