Drug Interaction Report

GENERALLY AVOID: Coadministration with moderate to potent inhibitors of CYP450 3A4 and/or inhibitors of P-glycoprotein (P-gp) efflux transporter system may increase the plasma concentrations of ensartinib, which is a substrate of both the isoenzyme and efflux transporter in vitro. Concomitant use may increase the risk and/or severity of adverse events. Clinical data characterizing the extent of this interaction and data with less potent inhibitors are not available.

MANAGEMENT: Concomitant use of ensartinib with moderate to potent inhibitors of CYP450 3A4 and/or inhibitors of P-gp should generally be avoided. Consultation with package labeling and relevant institutional protocols may be advisable for further guidance.

ADJUST DOSING INTERVAL: Consumption of food has led to a 27% decrease in the bioavailability of orally administered tacrolimus.

MANAGEMENT: Tacrolimus should be administered at least one hour before or two hours after meals.

GENERALLY AVOID: Grapefruit juice has been reported to increase tacrolimus trough concentrations. Data are limited, but inhibition of the CYP450 enzyme system appears to be involved.

MANAGEMENT: The clinician may want to recommend that the patient avoid ingesting large amounts of grapefruit juice while taking tacrolimus.