APPX - American Pharmaceutical-APPX Halted on FDA Metastic Breast Cancer FDA decision - APPX halted on news. APPX last print was at 38.75, up 4.82. January 35 calls and puts went out a 184 option implied volatility. February 35 calls and puts went out at a 118 option implied volatility. Investors and APPX are awaiting FDA action on APPX?s Abraxane (a treatment for metastatic breast cancer).