Laura Bucci, Melanie Hagen, Tobias Rothe, Maria Gabriella Raimondo, Filippo Fagni, Carlo Tur, Andreas Wirsching, Jochen Wacker, Artur Wilhelm, Jean-Philippe Auger, Milena Pachowsky, Markus Eckstein, Stefano Alivernini, Angelo Zoli, Gerhard Krönke, Stefan Uderhardt, Aline Bozec, Maria-Antonietta D'Agostino, Georg Schett, Ricardo Grieshaber-Bouyer
Bispecific T cell engagers (BiTEs) kill B cells by engaging T cells. BiTEs are highly effective in acute lymphoblastic leukemia. Here we treated six patients with multidrug-resistant rheumatoid arthritis (RA) with the CD19xCD3 BiTE blinatumomab under compassionate use. Low doses of blinatumomab led to B cell depletion and concomitant decrease of T cells, documenting their engager function. Treatment was safe, with brief increase in body temperature and acute phase proteins during first infusion but no signs of clinically relevant cytokine-release syndrome...
April 26, 2024: Nature Medicine