Transport properties of valsartan, sacubitril and its active metabolite (LBQ657) as determinants of disposition.

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Hanna I, Alexander N, Crouthamel MH, Davis J, Natrillo A, Tran P, Vapurcuyan A, Zhu B

Transport properties of valsartan, sacubitril and its active metabolite (LBQ657) as determinants of disposition.

Xenobiotica. 2018 Mar;48(3):300-313. doi: 10.1080/00498254.2017.1295171. Epub 2017 Mar 10.

PubMed ID

28281384 [ View in PubMed

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Abstract

1. The potential for drug-drug interactions of LCZ696 (a novel, crystalline complex comprising sacubitril and valsartan) was investigated in vitro. 2. Sacubitril was shown to be a highly permeable P-glycoprotein (P-gp) substrate and was hydrolyzed to the active anionic metabolite LBQ657 by human carboxylesterase 1 (CES1b and 1c). The multidrug resistance-associated protein 2 (MRP2) was shown to be capable of LBQ657 and valsartan transport that contributes to the elimination of either compound. 3. LBQ657 and valsartan were transported by OAT1, OAT3, OATP1B1 and OATP1B3, whereas no OAT- or OATP-mediated sacubitril transport was observed. 4. The contribution of OATP1B3 to valsartan transport (73%) was appreciably higher than that by OATP1B1 (27%), Alternatively, OATP1B1 contribution to the hepatic uptake of LBQ657 ( approximately 70%) was higher than that by OATP1B3 ( approximately 30%). 5. None of the compounds inhibited OCT1/OCT2, MATE1/MATE2-K, P-gp, or BCRP. Sacubitril and LBQ657 inhibited OAT3 but not OAT1, and valsartan inhibited the activity of both OAT1 and OAT3. Sacubitril and valsartan inhibited OATP1B1 and OATP1B3, whereas LBQ657 weakly inhibited OATP1B1 but not OATP1B3. 6. Drug interactions due to the inhibition of transporters are unlikely due to the redundancy of the available transport pathways (LBQ657: OATP1B1/OAT1/3 and valsartan: OATP1B3/OAT1/3) and the low therapeutic concentration of the LCZ696 analytes.

DrugBank Data that Cites this Article

Drug Transporters

Drug	Transporter	Kind	Organism	Pharmacological Action	Actions
Valsartan	Canalicular multispecific organic anion transporter 1	Protein	Humans	Unknown	Substrate	Details
Valsartan	Solute carrier organic anion transporter family member 1B1	Protein	Humans	Unknown	Substrate Inhibitor	Details
Valsartan	Solute carrier organic anion transporter family member 1B3	Protein	Humans	Unknown	Substrate	Details