Shares of Corbus Pharmaceuticals Inc. (NASDAQ:CRBP) doubled on opening Jan. 26 and ended the day up a whopping 249% as investors got a look at data from a first-in-human study testing next-generation Nectin-4-targeted antibody-drug conjugate (ADC) CRB-701. Licensed from CSPC Pharmaceutical Group for $7.5 million up front in February 2023, CRB-701 has IND clearance from the U.S. FDA, and Corbus plans to start its own clinical testing in the first quarter of 2024.