Clinical trials

The study aims to investigate the safety, tolerability, and preliminary clinical efficacy of BEN301 Injection in patients with autoimmune diseases. In patients with autoimmune diseases, Treg cells are typically deficient or dysfunctional. CAR-Treg cell therapy represents a promising strategy for the treatment of autoimmune diseases and may be applicable to a broad spectrum of autoimmune conditions. Preclinical studies have shown that BEN301Injection not only effectively suppresses the aberrant activation of T and B cells in SLE models, but also significantly reduces total lgG secretion and the production of SLE-specific autoantibodies, particularly anti-double-stranded DNA (dsDNA) antibodies. Moreover, no significant treatment-related toxicities were observed. Treg cell therapy has already demonstrated favorable efficacy in multiple indications, including organ transplantation and autoimmune diseases, with a well-established safety and tolerability profile. Meanwhile, CAR-Treg cell therapy has been actively explored in various autoimmune conditions; several products have shown therapeutic potential, and some patients have already benefited from treatment. These findings highlight the promising prospects of CAR-Treg cell therapy in the management of autoimmune diseases.

This study is a single-arm, open-label, single-centre exploratory clinical trial designed to evaluate the safety, tolerability, and preliminary efficacy of AFN50 Injection in adult patients with B-cell-mediated refractory/replapased autoimmune diseases.

Autoimmune diseases occur when the immune system mistakenly attacks the body's own tissues, leading to chronic inflammation and damage to organs such as the kidneys, lungs, muscles, nerves, or blood cells. Although many treatments are available, some patients do not respond adequately or experience repeated disease flares despite long-term therapy. New treatment approaches are therefore needed for patients with relapsed or refractory autoimmune diseases. This study is an exploratory clinical trial designed to evaluate the safety and potential benefits of a novel cell-based therapy called autologous CD19-BCMA dual-target CAR T-cell therapy. This treatment uses a patient's own immune cells, which are collected from the blood, modified in the laboratory to recognize specific immune cells involved in autoimmune disease, and then infused back into the patient. The study includes adult patients with certain relapsed or refractory autoimmune diseases, such as systemic lupus erythematosus, systemic sclerosis, inflammatory muscle diseases, Sjögren's syndrome, autoimmune hemolytic anemia, and multiple sclerosis. After cell collection and preparative treatment, participants will receive a single infusion of the investigational CAR T-cell therapy and will be closely monitored for safety. The main purpose of this study is to better understand the safety of this treatment, including possible side effects. The study will also explore how the disease responds to treatment over time. Participants will be followed for up to two years after treatment to assess safety and clinical outcomes. The results of this study may help researchers better understand whether this type of cell therapy could be a feasible treatment option for patients with difficult-to-treat autoimmune diseases in the future.

This study is a single center, open label exploratory clinical trial aimed at evaluating the safety and efficacy of autologous CD19 CAR-T therapy in subjects with autoimmune diseases. The study will adopt the traditional dose escalation model "3+3" design, with three dose groups set up, starting at a dose of 0.5 × 106 CAR+T cells/kg, to observe DLT, and conduct a 24 month safety and efficacy follow-up after cell infusion to observe the safety of autologous CD19 CAR-T and conduct preliminary efficacy evaluation. Three dose groups were set up, with dose group 1 as the starting dose, following the traditional 3+3 design rule for a single intravenous infusion: Dose group dosage unit (CAR+T cells/kg) Acceptable dose range Expected sample size (± 30%, CAR+T cells/kg) 1. 0.5 × 106 0.4 × 106\~0.6 × 106 3-6 cases 2. 1.0 × 106 0.7 × 106\~1.3 × 106 3-6 cases 3. 2.0 × 106 1.4 × 106\~2.6 × 106 3-6 cases Dose escalation rule The enrollment starts from dose group 1, and if no DLT occurs in the 3 subjects included, they will be transferred to the next dose group. If one of the three subjects in a certain dose group develops DLT, three additional subjects will be added to the group for cell infusion at the same dose. If there is ≥ 1 case of DLT in the 3 additional cases, it will be reduced to the previous dose group. If there are only 3 subjects in the previous dose group at this time, an additional 3 subjects need to be added for the trial; If there are already 6 subjects in the previous dose group, the trial ends and this dose is the maximum tolerated dose (MTD). Dose escalation is not allowed for the same subject. For safety reasons, the last subject in the previous dose group was observed for at least 28 days after autologous CD19 CAR-T infusion without DLT. The Safety Review Committee (SRC) held a meeting to decide whether to increase to the next dose group. During the dose escalation phase, SRC determines whether to continue increasing the dose or explore more subjects in a previously explored dose group based on the safety, efficacy, and pharmacokinetic (PK) results obtained for each dose group, and determines the recommended dose (RD) for subsequent studies.

This study is a single center, open label exploratory clinical trial aimed at evaluating the safety and efficacy of universal CD19 CAR-T therapy in subjects with autoimmune diseases. The study will adopt the traditional dose escalation model "3+3" design, setting up three dose groups with a starting dose of 0.5 × 106 CAR+T cells/kg for incremental DLT observation. Safety and efficacy follow-up will be conducted for 24 months after cell infusion to observe the safety of the universal CD19 CAR-T and conduct preliminary efficacy evaluation.

The purpose of this study is to assess the safety and efficacy of CAR-T cell therapy in patients with autoimmune disease.