7.3 Established and Other Potentially Significant Drug Interactions There were no drug-drug interaction trials conducted with the abacavir, dolutegravir, and lamivudine fixed-dose combination tablets. Methadone Abacavir: In a trial of 11 HIV-1–infected subjects receiving methadone-maintenance therapy with 600 mg of abacavir twice daily (twice the currently recommended dose), oral methadone clearance increased [see Clinical Pharmacology ( 12.3 )] . Riociguat Abacavir: Coadministration with TRIUMEQ resulted in increased riociguat exposure, which may increase the risk of riociguat adverse reactions [see Clinical Pharmacology ( 12.3 )] .
Source: FDA drug label - abacavir sulfate, dolutegravir sodium, lamivudine
Using cross-study comparisons to historical pharmacokinetic data for each interacting drug, dolutegravir did not appear to affect the pharmacokinetics of the following drugs: atazanavir, darunavir, efavirenz, etravirine, fosamprenavir, lopinavir, ritonavir, and boceprevir. Etravirine significantly reduced plasma concentrations of dolutegravir, but the effect of etravirine was mitigated by coadministration of lopinavir/ritonavir or darunavir/ritonavir and is expected to be mitigated by atazanavir/ritonavir ( Table 6 ) [see Drug Interactions ( 7.3 ), Clinical Pharmacology ( 12.3 )] . Concomitant Drug Class: Drug Name Effect on Concentration Clinical Comment HIV-1 Antiviral Agents Non-nucleoside reverse transcriptase inhibitor: Etravirine a ↓Dolutegravir Use of TRIUMEQ or TRIUMEQ PD with etravirine without coadministration of atazanavir/ritonavir, darunavir/ritonavir, or lopinavir/ritonavir is not recommended.
Source: FDA drug label - abacavir sulfate, dolutegravir sodium, lamivudine
Using cross-study comparisons to historical pharmacokinetic data for each interacting drug, dolutegravir did not appear to affect the pharmacokinetics of the following drugs: atazanavir, darunavir, efavirenz, etravirine, fosamprenavir, lopinavir, ritonavir, and boceprevir. Darunavir/ritonavir, lopinavir/ritonavir, rilpivirine, tenofovir, boceprevir, prednisone, rifabutin, and omeprazole had no clinically significant effect on the pharmacokinetics of dolutegravir.
Source: FDA drug label - abacavir sulfate, dolutegravir sodium, lamivudine
Using cross-study comparisons to historical pharmacokinetic data for each interacting drug, dolutegravir did not appear to affect the pharmacokinetics of the following drugs: atazanavir, darunavir, efavirenz, etravirine, fosamprenavir, lopinavir, ritonavir, and boceprevir. Etravirine significantly reduced plasma concentrations of dolutegravir, but the effect of etravirine was mitigated by coadministration of lopinavir/ritonavir or darunavir/ritonavir and is expected to be mitigated by atazanavir/ritonavir ( Table 6 ) [see Drug Interactions ( 7.3 ), Clinical Pharmacology ( 12.3 )] . Darunavir/ritonavir, lopinavir/ritonavir, rilpivirine, tenofovir, boceprevir, prednisone, rifabutin, and omeprazole had no clinically significant effect on the pharmacokinetics of dolutegravir.
Source: FDA drug label - abacavir sulfate, dolutegravir sodium, lamivudine
( 4 , 7 , 12.3 ) 7.1 Effect of Dolutegravir on the Pharmacokinetics of Other Agents In vitro, dolutegravir inhibited the renal organic cation transporters (OCT)2 (IC 50 = 1.93 microM) and multidrug and toxin extrusion transporter (MATE)1 (IC 50 = 6.34 microM). In vivo, dolutegravir inhibits tubular secretion of creatinine by inhibiting OCT2 and potentially MATE1. Dolutegravir may increase plasma concentrations of drugs eliminated via OCT2 or MATE1 (dofetilide, dalfampridine, and metformin) [see Contraindications ( 4 ), Drug Interactions ( 7.3 )] .
Source: FDA drug label - abacavir sulfate, dolutegravir sodium, lamivudine
Using cross-study comparisons to historical pharmacokinetic data for each interacting drug, dolutegravir did not appear to affect the pharmacokinetics of the following drugs: atazanavir, darunavir, efavirenz, etravirine, fosamprenavir, lopinavir, ritonavir, and boceprevir. Protease inhibitor: Fosamprenavir/ritonavir a Tipranavir/ritonavir a ↓Dolutegravir In adults and in pediatric patients weighing at least 25 kg , adjust dolutegravir dose to 50 mg twice daily.
Source: FDA drug label - abacavir sulfate, dolutegravir sodium, lamivudine
Using cross-study comparisons to historical pharmacokinetic data for each interacting drug, dolutegravir did not appear to affect the pharmacokinetics of the following drugs: atazanavir, darunavir, efavirenz, etravirine, fosamprenavir, lopinavir, ritonavir, and boceprevir. Etravirine significantly reduced plasma concentrations of dolutegravir, but the effect of etravirine was mitigated by coadministration of lopinavir/ritonavir or darunavir/ritonavir and is expected to be mitigated by atazanavir/ritonavir ( Table 6 ) [see Drug Interactions ( 7.3 ), Clinical Pharmacology ( 12.3 )] . Darunavir/ritonavir, lopinavir/ritonavir, rilpivirine, tenofovir, boceprevir, prednisone, rifabutin, and omeprazole had no clinically significant effect on the pharmacokinetics of dolutegravir.
Source: FDA drug label - abacavir sulfate, dolutegravir sodium, lamivudine
In drug interaction trials, dolutegravir did not have a clinically relevant effect on the pharmacokinetics of the following drugs: tenofovir, methadone, midazolam, rilpivirine, and oral contraceptives containing norgestimate and ethinyl estradiol.
Source: FDA drug label - abacavir sulfate, dolutegravir sodium, lamivudine
Darunavir/ritonavir, lopinavir/ritonavir, rilpivirine, tenofovir, boceprevir, prednisone, rifabutin, and omeprazole had no clinically significant effect on the pharmacokinetics of dolutegravir.
Source: FDA drug label - abacavir sulfate, dolutegravir sodium, lamivudine
Using cross-study comparisons to historical pharmacokinetic data for each interacting drug, dolutegravir did not appear to affect the pharmacokinetics of the following drugs: atazanavir, darunavir, efavirenz, etravirine, fosamprenavir, lopinavir, ritonavir, and boceprevir. Etravirine significantly reduced plasma concentrations of dolutegravir, but the effect of etravirine was mitigated by coadministration of lopinavir/ritonavir or darunavir/ritonavir and is expected to be mitigated by atazanavir/ritonavir ( Table 6 ) [see Drug Interactions ( 7.3 ), Clinical Pharmacology ( 12.3 )] . Darunavir/ritonavir, lopinavir/ritonavir, rilpivirine, tenofovir, boceprevir, prednisone, rifabutin, and omeprazole had no clinically significant effect on the pharmacokinetics of dolutegravir.
Source: FDA drug label - abacavir sulfate, dolutegravir sodium, lamivudine
However, in vivo, dolutegravir did not alter the plasma concentrations of tenofovir or para-amino hippurate, substrates of OAT1 and OAT3. In drug interaction trials, dolutegravir did not have a clinically relevant effect on the pharmacokinetics of the following drugs: tenofovir, methadone, midazolam, rilpivirine, and oral contraceptives containing norgestimate and ethinyl estradiol. Darunavir/ritonavir, lopinavir/ritonavir, rilpivirine, tenofovir, boceprevir, prednisone, rifabutin, and omeprazole had no clinically significant effect on the pharmacokinetics of dolutegravir.
Source: FDA drug label - abacavir sulfate, dolutegravir sodium, lamivudine
Protease inhibitor: Fosamprenavir/ritonavir a Tipranavir/ritonavir a ↓Dolutegravir In adults and in pediatric patients weighing at least 25 kg , adjust dolutegravir dose to 50 mg twice daily.
Source: FDA drug label - abacavir sulfate, dolutegravir sodium, lamivudine