Valneva SE is approaching a crucial point with its troubled efforts to develop a COVID-19 vaccine, having announced Sept. 26 it’s in talks with a potential partner for its next-generation jab. The company cautioned the negotiations could take several months and may not succeed. The company’s problems with its COVID-19 vaccine, which is based on an inactivated whole virus, have weighed on its shares (Paris:VLA), which collapsed from a 52-week high of more than €29 (US$28.29) in December 2021 to €5.74 at the close of trading Sept. 26.