NorthWest Biotherapeutics Inc (NWBO)

[ATLnsider]

thanks eagle8, I also think that the words directly from NWBio, on page 14 of its 2018 10-K, provides a direct clue of what happened:

In addition, our Phase III trial of DCVax-L was placed on a partial clinical hold for new screening for enrollment in 2015. Although the FDA lifted its hold in February 2017 as previously reported by the Company, the Company had already closed enrollment with 331 of the planned 348 patients.

https://www.sec.gov/Archives/edgar/data/1072379/000114420419017803/tv517288_10k.htm