EPIC Fail For Mast Therapeutics’ Lead Drug Sends Shares Into Freefall

Shares in Mast Therapeutics dropped by more than 80% upon news that a Phase III trial of its lead product vepoloxamer in sickle cell disease had failed.

Sickle cell anemia, 3D illustration showing blood vessel with normal and deformated crescent-like red blood cells
• Source: Shutterstock, Kateryna Kon

San Diego, California-based Mast Therapeutics Inc. is pinning its hopes on its vasodilating AIR001 program for heart failure following the second Phase III failure for its sickle cell disease candidate vepoloxamer.

Mast’s share price on the NYSE plummeted to $0.11 on the morning of Sept. 21 following the announcement made late...

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