Safety and Efficacy of CT103A Cells for Relapsed/Refractory Antibody-associated Inflammatory Diseases of the Nervous System

Summary

Antibody-mediated inflammatory diseases of the nervous system (also known as autoimmune diseases of the nervous system) are autoimmune diseases in which autoimmune cells and immune molecules attack the nervous system as the main pathogenic mechanism. In the immune response, pathogenic antibodies acting on autoantigens of the nervous system are collectively referred to as autoantibodies of the nervous system, and antibody-mediated inflammatory diseases of the nervous system can occur in the central nervous system, peripheral nervous system, and neuromuscular junctions, and muscles. In this study, we will recruit eight kinds of autoimmune diseases of nervous system including Neuromyelitis Optica Spectrum Disorder (NMOSD), Myasthenia Gravis (MG), Chronic Inflammatory Demyelinating Polyradiculoneuropathy (CIDP), idiopathic inflammatory myopathyand (IIM), multiple sclerosis (MS), autoimmune encephalitis (AE), Myelin Oligodendrocyte Glycoprotein Antibody-Associated Disease (MOGAD) and POEMS Syndrome. B-cell maturation antigen (BCMA) is expressed on the surface of plasma cells, thus making it an ideal target for targeted therapies. Chimeric antigen receptor (CAR) T cells against BCMA offers another potential therapeutic option to eliminate plasma cells in patients with neurological autoimmune diseases driven by abnormal antibody who still suffer recurrent attacks from conventional treatments. In the current study, the safety and efficacy of a novel CAR-T cell therapy using CT103A cells, are evaluated in patients with relapsed/refractory antibody-mediated idiopathic inflammatory diseases.

Conditions

• Autoimmune Diseases
• Autoimmune Diseases of the Nervous System
• Neuromyelitis Optica Spectrum Disorder
• Myasthenia Gravis
• Chronic Inflammatory Demyelinating Polyradiculoneuropathy
• Idiopathic Inflammatory Myopathies
• Multiple Sclerosis
• Autoimmune Encephalitis
• Myelin Oligodendrocyte Glycoprotein Antibody-Associated Disease (MOGAD)
• POEMS Syndrome

Interventions

BIOLOGICAL

CT103A cells

Subjects will undergo leukapheresis to isolate peripheral blood mononuclear cells (PBMCs) to manufacture CT103A cells, during which cyclophosphamide will be administered for the purpose of lymphocytes depletion. After lymphodepletion, subjects will receive one dose treatment with CT103A cells by intravenous (IV) infusion. The initial dose of 0.5×10\^6 CAR+ T cells/kg will be infused on day 0.

DRUG

Cyclophosphamide and fludarabine

Subjects will receive one 3-day cycle of lymphodepletion starting 4 days prior to CT103A infusion on Day 0. Subjects will be given IV infusion of cyclophosphamide 300 mg/m2/day on day -4, -3 and -2, and fludarabine 30 mg/m2 over 30 minutes administered immediately after cyclophosphamide.

Sponsors & Collaborators

• Nanjing IASO Biotechnology Co., Ltd.

  collaborator INDUSTRY

• Tongji Hospital

  lead OTHER

Principal Investigators

• Wei Wang, MD · Tongji Hospital

Study Design

Allocation

NON_RANDOMIZED

Purpose

TREATMENT

Masking

NONE

Model

SEQUENTIAL

Eligibility

Min Age

18 Years

Max Age

75 Years

Sex

ALL

Healthy Volunteers

No

Timeline & Regulatory

Start

2020-09-22

Primary Completion

2027-02-22

Completion

2027-05-31

Countries

• China

Study Locations