Amunix Pharmaceuticals Inc. CEO Angie You told BioWorld that her firm has already done most of the optimization with its unique T-cell engager platform, so that the effort now is mostly “about cranking out more INDs.”

Little more than two months after cutting a deal with Merck & Co. Inc. that could top $1 billion, Janux Therapeutics Inc. has closed on a $56 million series A. Janux is developing immunotherapies designed to trigger the immune system to kill specific tumors while leaving the healthy tissue safely alone. T-cell engagers bind to a tumor cell and use the patient’s T cells to eliminate the tumor.