Biotechnology Shares of China-based immuno-oncology-focussed biotech I-Mab plunged more than 13% to $6.90 yesterday, after the company revealed in a filing with the Securities and Exchange Commissions that AbbVie has discontinued a Phase I trial of I-Mab's anti-CD47 monoclonal antibody lemzoparlimab, which the US pharma major in-licensed for an upfront $180 million 2020. 18 August 2022