An Open-Label, Phase I Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of Allogeneic CAR-T Cell Therapy (OL-108) in the Treatment of Relapsed/Refractory Autoimmune Diseases
This study aims to characterize the safety, tolerability, pharmacokinetics, and preliminary efficacy of OL-108 in relapsed/refractory autoimmune diseases.
• General:
• Adults aged 18-65 years old
• ECOG 0-2
• Adequate organ function
• Females of childbearing potential (FCBP) must have a negative pregnancy test at screening and must agree to use a highly effective contraceptive method starting from the time of lymphodepletion and for 2 years after dosing of the IMP
• SLE specific:
• a) Fulfilling the 1997 ACE SLE criteria/ 2012 SLICC criteria/ 2019 ACR/EULAR classification criteria of SLE; b) A positive ANA titer (≥ 1:80) and/or presence of anti-dsDNA, or anti-Sm antibodies; c) Active disease at screening, defined as SLEDAI-2K≥8 AND clinical SLEDAI-2K≥6, AND ≥1 organ system with a British Isles Lupus Assessment (BILAG) A score (severe disease activity) or ≥2 organ systems with a BILAG B score (moderate disease activity), AND PGA≥ 1; OR biopsy proven 2003 ISN/RPS class III/IV +/- class V lupus nephritis; d) relapsed or refractory to at least one immunosuppressant or biologic.
• IIM specific:
• a) Fulfilling the 2017 ACR/EULAR classification criteria for DM, PM, ADM, ASS and IMNM; b) Active disease as defined by at least one of the following criteria: at least one muscle enzyme \> ULN in the past 4 weeks, active disease by EMG/muscle biopsy/MRI in the past 3 months, active DM rash; c)MMT \< 142 and 2 of the following criteria: VAS patients Global ≥ 2 cm, VAS physician Global ≥ 2 cm, HAQ \> 0.25, at least one muscle enzyme \> 1.5x ULN, MDAAT ≥ 2 ; d) CDASI ≥14 if with skin involvement; e) At least one myositis-specific or associated antibody positive; f)relapsed or refractory to at least one immunosuppressant or biologic.
• SSc specific:
• a)Fulfilling the 2013 ACR/EULAR classification criteria of SSc; b) Active disease as defined by one of following: new or progressing skin manifestation/vital organ involvement within 6 months prior to screening, CRP≥6 mg/L, ESR≥28 mm/h, platelet ≥330 × 10⁹/L; c) mRSS score \>10; d)relapsed or refractory to at least one immunosuppressant or biologic.
• AAV specific:
⁃ Fulfilling the 2022 ACR/EULAR classification criteria for MPA/GPA; b) Presence of ANCA to either proteinase 3 or myeloperoxidase; c)At least one major or three non-major items or at least two renal items of hematuria and proteinuria on the BVAS; d)relapsed or refractory to at least one immunosuppressant or biologic.