In US and Canada: For Research Use Only. Not for Use in Diagnostic Procedures. The BIOPHEN™ Calibrator Factor VIIa kit is a calibrator for activated Factor VII (FVIIa) activity measurements titrated and optimized using a clotting assay with the HEMOCLOT™ Factor VIIa (ACK092K-RUO) kit. This kit is for research use only and must not be used for patient diagnosis or treatment.