Milestone Pharmaceuticals (MIST) said Friday the US Food and Drug Administration has accepted for review its response to issues raised in the regulator's complete response letter for Cardamyst nasal spray.
The FDA has set a target action date of Dec. 13.
Cardamyst nasal spray is a novel investigational therapy for the treatment of acute episodes of paroxysmal supraventricular tachycardia, a type of abnormal heart rhythm.
Shares of the company were down ore than 24% in Friday premarket activity.
Price: 1.94, Change: -0.62, Percent Change: -24.22