BIOPHEN™ DiXaI is a two-stage chromogenic anti-Xa assay specifically designed for quantitative measurement of direct Factor Xa inhibitors (DiXaIs) — rivaroxaban (Xarelto®), apixaban (Eliquis®), and edoxaban (Lixiana®) — in citrated human plasma.

This assay is specifically formulated for DiXaIs and is NOT suitable for heparin or fondaparinux measurement — use BIOPHEN™ Heparin LRT for those analytes. Direct Xa inhibitor measurement requires drug-specific calibrators; standard heparin calibrators cannot be used.

Standard range calibrators (0-500 ng/mL) and trough range calibrators (0-100 ng/mL) are available for all three drugs to support both peak and pre-dose trough monitoring. FDA 510(k) cleared and CE-IVD marked.


Reference Product Name Price
CE  /  HCL
A221011-CAN
BIOPHEN™ Heparin LRT 7.5 — Anti-Xa Chromogenic Assay $825.00
RUO
A221011-RUO
BIOPHEN™ Heparin LRT 7.5 — Anti-Xa Chromogenic Assay $862.00
CE  /  HCL
A221013-CAN
BIOPHEN™ Heparin LRT 3 — Anti-Xa Chromogenic Assay $394.00
RUO
A221013-RUO
BIOPHEN™ Heparin LRT 3 — Anti-Xa Chromogenic Assay $411.00
CE  /  HCL
A221015-CAN
BIOPHEN™ Heparin LRT 5 — Anti-Xa Chromogenic Assay $567.00
RUO
A221015-RUO
BIOPHEN™ Heparin LRT 5 — Anti-Xa Chromogenic Assay $593.00
510(k)
A221006
BIOPHEN™ Heparin 6 — Anti-Xa Assay for UFH/LMWH/Analogues $439.00
CE  /  HCL
A221006-CAN
BIOPHEN™ Heparin 6 — Anti-Xa Assay for UFH/LMWH/Analogues $439.00
CE  /  HCL
A221030-CAN
BIOPHEN™ DiXaI — Two-Stage Anti-Xa for Direct Xa Inhibitors $420.00
RUO
A221030-RUO
BIOPHEN™ DiXaI — Two-Stage Anti-Xa for Direct Xa Inhibitors $440.00