IASO207 Injection for Active Refractory Systemic Lupus Erythematosus (SLE)

This study is a single-arm, single-center, open-label, first-in-human (FIH) clinical trial designed to preliminarily evaluate the safety and efficacy of IASO207 injection, an in vivo chimeric antigen receptor T-cell (CAR-T) therapy, in patients with active, refractory systemic lupus erythematosus (SLE), and to determine the recommended dose for subsequent clinical development. A standard "3+3" dose-escalation design will be employed during the dose-escalation phase, with three predefined dose levels: 5.0 × 10⁸ TU, 1.0 × 10⁹ TU, and 2.0 × 10⁹ TU. Each dose cohort will enroll 3-6 subjects, with a single administration of IASO207 injection. The primary objective is to assess the safety and tolerability of IASO207 across different dose levels. Secondary and exploratory objectives include the characterization of pharmacokinetics, pharmacodynamics, and immunogenicity, as well as the preliminary evaluation of clinical efficacy in patients with active refractory SLE. The results of this study are expected to inform dose selection and support subsequent clinical trials.