706 First-in-human phase 2 clinical trial of multiplex combination intratumoral immunotherapy (MCII) in patients with metastatic solid cancer (Abscopal 5001 trial) by David G Bostwick, Melanie M Wilk, Brian R Bostwick, Peter M Rydesky, Peter J Littrup, Michael Cribbs, Julie Linton, Colleen E Ellis, Eugene C Rajaratnam, Laura M Galeazzi, Junqi Qian