Clinical trials

This is an early exploratory study to assess the tolerability and safety of GC012F CAR T cell injection in Multiple Sclerosis patients.

This is a Phase I, single-arm, open-label, dose-escalation and dose-expansion study. The main objective is to explore the safety and tolerability of the universal STAR-T cell injection in patients with progressive or relapsing-remitting multiple sclerosis (MS).The secondary objectives are to evaluate the efficacy of the universal STAR-T cell injection in treating patients with progressive or relapsing-remitting MS; and to assess the pharmacokinetic (PK) and pharmacodynamic (PD) characteristics of the universal STAR-T cell injection. The primary endpoint of this study is the incidence rate of dose-limiting toxicity (DLT), as well as the types, severity and frequency of adverse events (AE).The secondary research endpoints of this study are the efficacy endpoints as well as the expansion and persistence of the universal STAR-T cells in the body. This study is an exploratory clinical trial of the universal STAR-T cell injection for the treatment of progressive or relapsed-remitting MS. The study will be conducted in two phases: dose escalation and dose expansion. The dose escalation group 1 (1.5E6 STAR-T cells) begins, followed by dose escalation group 2 (3E6 STAR-T cells), and dose escalation group 3 (4.5E6 STAR-T cells). Expansion study phase: After the dose escalation stage is completed, based on the safety, PK results and preliminary efficacy data of each dose group during the escalation stage, the recommended dose will be determined for the dose expansion study. It is planned to include 3 to 6 subjects to further systematically evaluate the safety and efficacy of the universal STAR-T cell. This study includes the screening period (from D-28 to D-6), the pre-clearance treatment and rest observation period (from D-5 to D-1), the cell infusion and main study endpoint observation period (from D0 to W12 after infusion), and the follow-up period (from W12 after infusion to W104).

This is a single-arm, open-label, early exploratory clinical study to evaluate the safety and efficacy of GC012F Injection in subjects with refractory idiopathic inflammatory myopathy and to assess the pharmacokinetic and pharmacodynamic profiles. This study consists of screening period, apheresis period, baseline period, lymphodepleting preconditioning period, pre-infusion evaluation period, CAR-T cell infusion period and follow-up period. Eligible subjects will undergo apheresis and receive infusion following the manufacture of the CAR-T product. Subjects will receive lymphodepleting preconditioning before CAR-T cell infusion and will be assessed before infusion. If the criteria for cell infusion are met, CAR-T cell infusion will be performed and the infusion dose in the same group or subsequent treatment groups may be adjusted according to the safety and clinical response. A total of 1 dose group will be set for CAR-T cell infusion dose in this study: 3 × 10\^5/kg. Approximately 12 subjects are planned to be enrolled. Subjects will be monitored for dose-limiting toxicity (DLT) within 28 days following the infusion of GC012F Injection. For the first 3 patients receiving infusions of GC012F, 3 additional patients will be included in this cohort if no more than 1/3 of the patients experience DLTs at a given dose level. If 2/3 or more DLTs occur at this dose level, a spare dose of 2.0 × 10\^5/kg or 1.0 × 10\^5/kg may be administered to subsequent subjects following discussion between the investigator and the partner. If no more than 1 out of the first 6 subjects experiences a DLT, 6 additional subjects will be enrolled. Once 2 subjects experience DLTs, the investigator and the partner will discuss and decide whether to use a spare dose group of 2.0×10\^5/kg or 1.0×10\^5/kg. After the first 3 subjects have all completed the 28-day DLT observation period, the Safety Monitoring Committee (SMC) will conduct an assessment based on clinical safety and pharmacokinetic data (if available). Subsequently, the SMC may, depending on the safety profile and study progress, request an increased frequency of safety committee assessments and reviews. After completing the DLT observation period for all subjects in this dose group, all clinical study data collected during the DLT observation period for this dose group, especially safety data, will be assessed, and whether to add new subjects to this dose group and whether to explore a different dose group will be decided upon discussion between the investigator and the partner. Following CAR-T cell infusion, subjects will be followed for safety, cell proliferation and survival, and efficacy until the subject withdraws from the study and refuses subsequent follow-up, or dies, or withdraws consent, or is lost to follow-up, whichever occurs first.

This is a single-arm, open-label and early exploratory clinical study, with the purpose to study the safety, tolerability and initial clinical efficacy of GC012F Injection in the treatment of refractory GMG and to evaluate the PK, PD characteristics and immunogenicity in subjects with refractory GMG infused with GC012F Injection.