Arthritis, Rheumatoid Clinical Trial
Official title:
Safety/Efficacy of Intra-articular Administration of Autologous Tolerogenic Dendritic Cells for Treatment of Patients With Rheumatoid Arthritis
Tolerogenic dendritic cell (tDC)-based clinical trials for the treatment of autoimmune diseases are now a reality. Clinical trials are currently exploring the effectiveness of tDC to treat of type 1 diabetes mellitus, rheumatoid arthritis, multiple sclerosis and Crohn's disease. The general objective of this study is to evaluate the safety and tolerability of a single intra-articular injection (into the knee joint) of autologous monocyte-derived dendritic cells generated in the presence of interferon-alpha (IFN-α)/granulocyte-macrophage colony-stimulating factor (GM-CSF) and tolerized with Dexamethasone in rheumatoid arthritis (RA) patients.
A phase I dose-escalating clinical trial will be conducted to determine the safety and tolerability of a single intra-articular injection (into the knee joint) of autologous tolerogenic dendritic cells, and to enable selection of a suitable dose regimen for phase II trial. The primary objective of the phase I study will be to determine whether tDC-based therapy is safe and well tolerated and to establish the dose-response with disease activity measured over 6 months. Patients will serve as their own controls (pre- and post-treatment). Five doses of tDCs will be tested. The Study will start with intra-articular injection (into the knee joint) of 1x106 cells. Depending on safety/tolerability outcomes, the dose will gradually increase to 3x106, 5x106, 8x106 and 10x106 cells. The safety will be determined by the evaluation of the number of participants with adverse events (AEs) and severe adverse events (SAEs) following the intra-articular administration of tDC (within 6 months of injection). Systemic RA disease activity will be measured using DAS28 (Disease Activity Score using 28 joints) and the Health Assessment Questionnaire (HAQ), a standard instruments used in RA. Patients will be monitored at baseline and at 3, 7 days and 1, 3, 6 months post treatment. ;
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