Humanigen walked away. And it is promising. The trial showed that lenzilumab is effective with Gilead's Yescarta but now lenz will now be trialed in combination with every CAR-T treatment that is commercially available. If it is effective with multiple CAR-T therapies, which is likely since all of their toxicity issues stem from GM-CSF, the buyout price will be astronomical. Lenzilumab might literally make CAR-T viable.
If you aren't following the news about the lack of vaccinations versus surplus of supply in the US, you are missing out on some vital market information.