BTW, what's PD-1? TIA Programmed death-1 (PD-1). Bristol-Myers Squibb has MDX-1106 (ONO-4538), an anti-PD1: http://meeting.ascopubs.org/cgi/content/abstract/26/15_suppl/3006 http://www.pnas.org/content/early/2010/02/08/0915174107.abstract