Trading in shares in AB Science SA was suspended Tuesday after a safety signal prompted a voluntary hold on two late-stage clinical studies of its masitinib, in mastocytosis and amyotrophic lateral sclerosis, respectively.

DUBLIN – Shares in Santhera Pharmaceuticals Holding AG surged by as much as 71% June 1 on news that the high-dose arm of a phase IIb pivotal trial of vamorolone hit the primary endpoint of an improvement vs. placebo in the time-to-stand velocity attained by ambulatory boys with Duchenne muscular dystrophy (DMD).