Drug Interactions between Biktarvy and vimseltinib

Consumer information for this interaction is not currently available.

GENERALLY AVOID: Coadministration with vimseltinib may increase the plasma concentrations of drugs that are substrates of the P-glycoprotein (P-gp) efflux transporter. The proposed mechanism, based on in vitro data, involves decreased clearance due to inhibition of P-gp by vimseltinib. Based on model-informed drug interaction studies, coadministration of the P-gp substrate dabigatran with vimseltinib (30 mg twice weekly) is predicted to increase the systemic exposure (AUC) and peak plasma concentration (Cmax) of dabigatran by 2 to 3-fold. However, if dabigatran is administered 4 hours after vimseltinib (30 mg twice weekly), the AUC and Cmax are predicted to increase by only up to 1.3-fold. Clinical data are not available.

MANAGEMENT: Concomitant use of vimseltinib with P-gp substrates should generally be avoided. If coadministration is considered necessary, vimseltinib should be taken at least 4 hours prior to the P-gp substrate. The individual product labeling of the P-gp substrate should be consulted for further guidance.

Consumer information for this interaction is not currently available.

GENERALLY AVOID: Coadministration with inhibitors of P-glycoprotein (P-gp) and/or breast cancer resistance protein (BCRP) may increase the plasma concentrations of bictegravir. According to the product labeling, bictegravir is a substrate of both P-gp and BCRP; however, the extent to which each enzymatic pathway contributes to the metabolic clearance of bictegravir has not been reported.

MANAGEMENT: The use of bictegravir with P-gp and/or BCRP inhibitors should generally be avoided. If concomitant use is required, caution and close clinical and laboratory monitoring, including renal function, are recommended. Dosage adjustments may be required whenever a P-gp and/or BCRP inhibitor is added to or withdrawn from therapy.