Toralizumab (IDEC-131) is a humanized monoclonal antibody (mAb) against CD40L (CD154) comprised of human gamma 1 heavy chains and human kappa light chains. Toralizumab binds specifically to human CD40L on T cells, thereby preventing CD40 signaling. Toralizumab, a immunosuppressive agent, has the potential for active systemic lupus erythematosus (SLE) research.
References:
[1]. Camilo E Fadul, et al. Safety and Immune Effects of Blocking CD40 Ligand in Multiple Sclerosis. Neurol Neuroimmunol Neuroinflamm. 2021 Oct 15;8(6):e1096.
[2]. Kenneth C Kalunian, et al. Treatment of systemic lupus erythematosus by inhibition of T cell costimulation with anti-CD154: a randomized, double-blind, placebo-controlled trial. Arthritis Rheum. 2002 Dec;46(12):3251-8.