FDA places clinical hold on SNY’s Tolebrutinib trials: https://www.sanofi.com/en/media-room/press-releases/2022/2022-06-30-05-30-00-2471767 Tolebrutinib is the BTK inhibitor SNY picked up in the $3.4B 2020 buyout of Principia Biopharma (#msg-157669162).