About this trial
This single-arm, open-label, phase I trial evaluates the safety and tolerability of ICG318 CAR-T (BCMA-CD19-IL-15/IL15sushi cCAR T cells) in patients with refractory Idiopathic inflammatory myopathy (IIM).
Eligibility criteria
Qualifiers
Age 18-60 (age ≥18 years at first symptom onset), gender not limited;
Refractory IIM: At least one round of high-dose corticosteroid therapy and/or intravenous immunoglobulin, and at least two immunosuppressants (including but not limited to cyclophosphamide, mycophenolate mofetil, tacrolimus, cyclosporine, and azathioprine) have been used in adequate doses for more than 6 months;
At the time of enrollment, participants must be receiving background medication at a stable dose, defined as: receiving background therapy with one oral glucocorticoid and/or one immunosuppressant at a stable dose for ≥ 12 weeks;
MMT-8 score ≤141 (out of 150);
Disqualifiers
During the screening period, individuals with active viral, bacterial, or other infections requiring systemic treatment are excluded.
The presence of a serious, poorly controlled comorbidity that the investigator considers clinically significant, such as (but not limited to) neurological, cardiovascular, renal, hepatic, endocrine, or gastrointestinal disorders;
The estimated glomerular filtration rate (eGFR) using the MDRD formula is <40 ml/min/1.73m² ; [eGFR = 186 × (age) - 0.203 × SCr - 1.154 (mg/dl), for women, the result is multiplied by 0.742].
Study participants with total bilirubin >1.5 times the upper limit of normal (no specific restrictions are made for liver enzymes because inflammatory myopathy can cause elevated ALT/AST).
Trial design
Treatments tested in this trial
- ICG318, BCMA-CD19-IL-15/IL-15 sushi Compound CAR-T