Pieris finally vaults FDA hold on next-gen solid tumor hunter, clearing the path for mid-stage trial

Finally freed from the restraints of a partial FDA clinical hold on its lead HER2-positive solid tumor candidate, Pieris Pharmaceuticals is now racing toward Phase II.

The FDA slapped a partial hold on Pieris’ PRS-343 back in July, restricting the biotech from enrolling new patients in a Phase I trial. While Pieris was allowed to continue dosing patients who were already enrolled, the agency requested they conduct an additional “in-use and compatibility study” before recruiting any more.