Tivicay

1 INDICATIONS AND USAGE TIVICAY and TIVICAY PD are indicated in combination with other antiretroviral agents for the treatment of HIV‑1 infection in adults (treatment-naïve or -experienced) and in pediatric patients (treatment-naïve or -experienced but integrase strand transfer inhibitor [INSTI]-naïve) aged at least 4 weeks and weighing at least 3 kg [see Microbiology ( 12.4 )]. TIVICAY is indicated in combination with rilpivirine as a complete regimen for the treatment of HIV-1 infection in adults to replace the current antiretroviral regimen in those who are virologically suppressed (HIV-1 RNA less than 50 copies/ mL) on a stable antiretroviral regimen for at least 6 months with no history of treatment failure or known substitutions associated with resistance to either antiretroviral agent. TIVICAY and TIVICAY PD are an HIV-1 integrase strand transfer inhibitor (INSTI) indicated in combination with other antiretroviral agents for the treatment of HIV-1 infection in adults (treatment-naïve or -experienced) and in pediatric patients (treatment-naïve or -experienced but INSTI- naïve) aged at least 4 weeks and weighing at least 3 kg. ( 1 ) TIVICAY is indicated in combination with rilpivirine as a complete regimen for the treatment of HIV-1 infection in adults to replace the current antiretroviral regimen in those who are virologically suppressed (HIV-1 RNA less than 50 copies/mL) on a stable antiretroviral regimen for at least 6 months with no history of treatment failure or known substitutions associated with resistance to either antiretroviral agent. ( 1 )

2 DOSAGE AND ADMINISTRATION • May be taken without regard to food. ( 2.2 , 2.6) UGT = uridine diphosphate glucuronosyltransferase; CYP = cytochrome P450. a Rilpivirine dose is 25 mg once daily for those switching to dolutegravir plus rilpivirine. b Alternative combinations that do not include metabolic inducers should be considered where possible. Adult Population Recommended Dose Treatment-naïve or treatment-experienced INSTI-naïve or virologically suppressed (HIV-1 RNA <50 copies per mL) adults switching to dolutegravir plus rilpivirine a ( 2.1 ) 50 mg once daily Treatment-naïve or treatment-experienced INSTI-naïve when coadministered with certain UGT1A or CYP3A inducers ( 2.1 , 7.2 , 7.3 ) 50 mg twice daily INSTI-experienced with certain INSTI-associated resistance substitutions or clinically suspected INSTI resistance b ( 2.1 , 12.4 ) 50 mg twice daily Pediatric Patients: Treatment-naïve or treatment-experienced INSTI-naïve patients aged at least 4 weeks and weighing at least 3 kg. See Tables 2 , 3 , and 4 for complete pediatric dosing recommendations. ( 2.3 , 2.4 , 2.5 ). TIVICAY and TIVICAY PD are not bioequivalent and are not substitutable on a milligram-per-milligram basis. a If certain UGT1A or CYP3A inducers are coadministered, then adjust the weight-based dose of TIVICAY to twice daily. ( 2.3 , 2.4 , 7.2 , 7.3 ) Pediatric Population Body Weight Recommended Dose a TIVICAY PD Tablets for Oral Suspension 3 kg to less than 6 kg 5 mg once daily 6 kg to less than 10 kg 15 mg once daily 10 kg to less than 14 kg 20 mg once daily 14 kg to less than 20 kg 25 mg once daily 20 kg and greater 30 mg once daily Alternative dosing recommendations for TIVICAY tablets for patients weighing at least 14 kg ( Table 4 ): • 14 kg to less than 20 kg: 40 mg once daily. • 20 kg and greater: 50 mg once daily. 2.1 Recommended Dosage in Adults TIVICAY tablets may be taken with or without food. Table 1. Dosing Recommendations for TIVICAY Tablets in Adult Patients INSTI = integrase strand transfer inhibitor. a Rilpivirine dose is 25 mg once daily for those switching to dolutegravir plus rilpivirine. b Alternative combinations that do not include metabolic inducers should be considered where possible [see Drug Interactions ( 7.3 )] . Population Recommended Dosage Treatment-naïve or treatment-experienced INSTI-naïve or virologically suppressed (HIV‑1 RNA <50 copies/mL) adults switching to dolutegravir plus rilpivirine a 50 mg once daily Treatment-naïve or treatment-experienced INSTI-naïve when coadministered with certain uridine diphosphate (UDP)-glucuronosyl transferase 1A1 (UGT1A) or cytochrome P450 (CYP)3A inducers [see Drug Interactions ( 7.2 , 7.3 )] 50 mg twice daily INSTI-experienced with certain INSTI-associated resistance substitutions or clinically suspected INSTI resistance b [see Microbiology ( 12.4 )] 50 mg twice daily 2.2 General Dosing and Administration Instructions for Pediatric Patients Do not substitute TIVICAY tablets and TIVICAY PD tablets for oral suspension on a milligram-per-milligram basis due to differing pharmacokinetic profiles [see Warnings and Precautions ( 5.5 ), Clinical Pharmacology ( 12.3 )]. If switching from the tablets to the tablets for oral suspension, follow the recommended dosage in Table 3 . If switching from the tablets for oral suspension to the tablets, follow the recommended dosage in Table 4 . See administration instructions in [Dosage and Administration ( 2.5 )] . 2.3 Recommended Dosage in Pediatric Patients Weighing 3 to 14 kg The recommended weight-based dosage of TIVICAY PD tablets for oral suspension in pediatric patients weighing 3 to 14 kg (4 weeks and older, treatment-naïve, or treatment-experienced but naïve to INSTI treatment) is described in Table 2 . Do not use TIVICAY tablets in patients weighing 3 to 14 kg. See administration instructions in [Dosage and Administration ( 2.5 )] . Table 2. Recommended Dosage of TIVICAY PD in Pediatric Patients 4 Weeks and Older Weighing 3 to 14 kg a If cert…

5 WARNINGS AND PRECAUTIONS • Hypersensitivity reactions characterized by rash, constitutional findings, and sometimes organ dysfunction, including liver injury, have been reported. Discontinue TIVICAY or TIVICAY PD and other suspect agents immediately if signs or symptoms of hypersensitivity reactions develop, as a delay in stopping treatment may result in a life-threatening reaction. ( 5.1 ) • Hepatotoxicity has been reported in patients receiving dolutegravir-containing regimens. Patients with underlying hepatitis B or C may be at increased risk for worsening or development of transaminase elevations. Monitoring for hepatotoxicity is recommended. ( 5.2 ) • Immune reconstitution syndrome has been reported in patients treated with combination antiretroviral therapy. ( 5.4 ) • TIVICAY tablets and TIVICAY PD tablets for oral suspension are not substitutable. ( 2.2 , 5.5 ) 5.1 Hypersensitivity Reactions Hypersensitivity reactions have been reported and were characterized by rash, constitutional findings, and sometimes organ dysfunction, including liver injury. The events were reported in less than 1% of subjects receiving TIVICAY in Phase III clinical trials. Discontinue TIVICAY or TIVICAY PD and other suspect agents immediately if signs or symptoms of hypersensitivity reactions develop (including, but not limited to, severe rash or rash accompanied by fever, general malaise, fatigue, muscle or joint aches, blisters or peeling of the skin, oral blisters or lesions, conjunctivitis, facial edema, hepatitis, eosinophilia, angioedema, difficulty breathing). Clinical status, including liver aminotransferases, should be monitored and appropriate therapy initiated. Delay in stopping treatment with TIVICAY or TIVICAY PD or other suspect agents after the onset of hypersensitivity may result in a life-threatening reaction. TIVICAY and TIVICAY PD are contraindicated in patients who have experienced a previous hypersensitivity reaction to dolutegravir. 5.2 Hepatotoxicity Hepatic adverse events have been reported in patients receiving a dolutegravir-containing regimen. Patients with underlying hepatitis B or C may be at increased risk for worsening or development of transaminase elevations with use of TIVICAY or TIVICAY PD [see Adverse Reactions ( 6.1 )] . In some cases, the elevations in transaminases were consistent with immune reconstitution syndrome or hepatitis B reactivation particularly in the setting where anti-hepatitis therapy was withdrawn. Cases of hepatic toxicity, including elevated serum liver biochemistries, hepatitis, and acute liver failure have been reported in patients receiving a dolutegravir-containing regimen without pre-existing hepatic disease or other identifiable risk factors. Drug-induced liver injury leading to liver transplant has been reported with TRIUMEQ (abacavir, dolutegravir, and lamivudine). Monitoring for hepatotoxicity is recommended. 5.3 Risk of Adverse Reactions or Loss of Virologic Response Due to Drug Interactions The concomitant use of TIVICAY or TIVICAY PD and other drugs may result in known or potentially significant drug interactions, some of which may lead to [see Contraindications ( 4 ), Drug Interactions ( 7.3 )] : • Loss of therapeutic effect of TIVICAY or TIVICAY PD and possible development of resistance. • Possible clinically significant adverse reactions from greater exposures of concomitant drugs. For concomitant drugs for which the interaction can be mitigated, please see Table 8 for steps to prevent or manage these possible and known significant drug interactions, including dosing recommendations. Consider the potential for drug interactions prior to and during therapy with TIVICAY or TIVICAY PD; review concomitant medications during therapy with TIVICAY or TIVICAY PD; and monitor for the adverse reactions associated with the concomitant drugs. 5.4 Immune Reconstitution Syndrome Immune reconstitution syndrome has been reported in patients treated with combination antiretroviral therapy,…

4 CONTRAINDICATIONS TIVICAY and TIVICAY PD are contraindicated in patients: • with previous hypersensitivity reaction to dolutegravir [see Warnings and Precautions ( 5.1 )]. • receiving dofetilide due to the potential for increased dofetilide plasma concentrations and the risk for serious and/or life-threatening events [see Drug Interactions ( 7 )] . • Previous hypersensitivity reaction to dolutegravir. ( 4 ) • Coadministration with dofetilide. ( 4 )

7 DRUG INTERACTIONS • Refer to the full prescribing information for important drug interactions with TIVICAY or TIVICAY PD. ( 4 , 7 ) • Drugs that are metabolic inducers may decrease the plasma concentrations of dolutegravir. ( 7.2 , 7.3 ) • TIVICAY or TIVICAY PD should be taken 2 hours before or 6 hours after taking cation-containing antacids or laxatives, sucralfate, oral supplements containing iron or calcium, or buffered medications. When taken with food, TIVICAY and supplements containing calcium or iron can be taken at the same time. ( 7.3 ) 7.1 Effect of Dolutegravir on the Pharmacokinetics of Other Agents In vitro, dolutegravir inhibited the renal organic cation transporters, OCT2 (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, Table 8 ) [see Contraindications ( 4 ), Drug Interactions ( 7.3 )] . In vitro, dolutegravir inhibited the basolateral renal transporters, organic anion transporter (OAT) 1 (IC 50 = 2.12 microM) and OAT3 (IC 50 = 1.97 microM). However, in vivo, dolutegravir did not alter the plasma concentrations of tenofovir or para-amino hippurate, substrates of OAT1 and OAT3. In vitro, dolutegravir did not inhibit (IC 50 greater than 50 microM) the following: cytochrome P450 (CYP)1A2, CYP2A6, CYP2B6, CYP2C8, CYP2C9, CYP2C19, CYP2D6, CYP3A, uridine diphosphate glucuronosyltransferase (UGT)1A1, UGT2B7, P-glycoprotein (P-gp), breast cancer resistance protein (BCRP), bile salt export pump (BSEP), organic anion transporter polypeptide (OATP)1B1, OATP1B3, OCT1, multidrug resistance protein (MRP)2, or MRP4. In vitro, dolutegravir did not induce CYP1A2, CYP2B6, or CYP3A4. Based on these data and the results of drug interaction trials, dolutegravir is not expected to affect the pharmacokinetics of drugs that are substrates of these enzymes or transporters. 7.2 Effect of Other Agents on the Pharmacokinetics of Dolutegravir Dolutegravir is metabolized by UGT1A1 with some contribution from CYP3A. Dolutegravir is also a substrate of UGT1A3, UGT1A9, BCRP, and P-gp in vitro. Drugs that induce those enzymes and transporters may decrease dolutegravir plasma concentration and reduce the therapeutic effect of dolutegravir. Coadministration of dolutegravir and other drugs that inhibit these enzymes may increase dolutegravir plasma concentration. 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 8 ) [see Drug Interactions ( 7.3 ), Clinical Pharmacology ( 12.3 )] . In vitro, dolutegravir was not a substrate of OATP1B1 or OATP1B3. 7.3 Established and Other Potentially Significant Drug Interactions Table 8 provides clinical recommendations as a result of drug interactions with TIVICAY or TIVICAY PD. These recommendations are based on either drug interaction trials or predicted interactions due to the expected magnitude of interaction and potential for serious adverse events or loss of efficacy [ s ee Dosage and Administration ( 2 ), Clinical Pharmacology ( 12.3 )]. Table 8. Established and Other Potentially Significant Drug Interactions: Alterations in Dose or Regimen May Be Recommended Based on Drug Interaction Trials or Predicted Interactions [see Dosage and Administration ( 2 )] INSTI = integrase strand transfer inhibitor. a See Clinical Pharmacology ( 12.3 ) Table 11 or Table 12 for magnitude of interaction. b The lower dolutegravir exposures observed in INSTI-experienced patients (with certain INSTI-associated resistance substitutions or clinically suspected INSTI resistance [see Microbiology ( 12.4 )] ) upon coadministration with certain inducers may resul…

8.1 Pregnancy Pregnancy Exposure Registry There is a pregnancy exposure registry that monitors pregnancy outcomes in individuals exposed to TIVICAY or TIVICAY PD during pregnancy. Healthcare providers are encouraged to register patients by calling the Antiretroviral Pregnancy Registry (APR) at 1-800-258-4263. Risk Summary Data from two, ongoing birth outcome surveillance studies in Botswana and Eswatini which together include over 14,000 individuals evaluated during pregnancy show similar prevalence of neural tube defects among infants born to individuals taking dolutegravir at the time of conception compared to those born to individuals taking non-dolutegravir-containing regimens at conception or infants born to HIV-negative individuals. (see Data) . There are insufficient human data on the use of dolutegravir during pregnancy to definitively assess a drug-associated risk for birth defects and miscarriage. However, available human data from the APR do not indicate an increased risk of birth defects (see Data) . The background risk for major birth defects for the indicated population is unknown. In the U.S. general population, the estimated background rate for major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively. In animal reproduction studies, no evidence of adverse developmental outcomes (including neural tube defects) was observed with dolutegravir at systemic exposures (AUC) less than (rabbits) and approximately 27 times (rats) the exposure in humans at the maximum recommended human dose (MRHD) of TIVICAY (see Data) . Data Human Data: Observational studies: The first interim analysis from an ongoing birth outcome surveillance study in Botswana identified an association between dolutegravir and an increased risk of neural tube defects when dolutegravir was administered at the time of conception and in early pregnancy. A subsequent analysis was conducted based on a larger cohort from the birth outcome surveillance study in Botswana and included over 9,460 individuals exposed to dolutegravir at conception, 23,664 individuals exposed to non-dolutegravir-containing regimens, and 170,723 HIV-negative pregnant individuals. The prevalence of neural tube defects in infants delivered to individuals taking dolutegravir at conception was 0.11% (95% CI: 0.05-0.19%). The observed prevalence rate did not differ significantly from that of infants delivered to individuals taking non-dolutegravir-containing regimens (0.11%, 95% CI: 0.07-0.16%), or to HIV-negative individuals (0.06%, 95% CI: 0.05-0.08%). The Eswatini birth outcome surveillance study includes 9,743 individuals exposed to dolutegravir at conception, 1,838 individuals exposed to non-dolutegravir-containing regimens, and 32,259 HIV-negative pregnant individuals. The prevalence of neural tube defects in infants delivered to individuals taking dolutegravir at conception was 0.08% (95% CI: 0.04-0.16%). The observed prevalence rate did not differ significantly from that of infants delivered to individuals taking non-dolutegravir-containing regimens (0.22%, 95% CI: 0.06-0.56%) or to HIV-negative individuals (0.08%, 95% CI: 0.06-0.12%). The observed prevalence of neural tube defects in infants delivered to individuals taking non-dolutegravir-containing regimens had a wide confidence interval due to low sample size. Limitations of these birth outcome surveillance studies include insufficient data to determine if baseline characteristics were balanced between the study groups or to assess other factors such as the use of folic acid during the preconception or first trimester periods. Antiretroviral Pregnancy Registry: Based on prospective reports to the APR, of 1,377 exposures to dolutegravir during pregnancy resulting in live births (including 874 exposed in the first trimester), the prevalence of defects in live births was 3.3% (95% CI: 2.2% to 4.7%) following first-trimester exposure to dolutegravir-containing regimens and …

6 ADVERSE REACTIONS The following serious adverse drug reactions are discussed in other sections of the labeling: • Hypersensitivity reactions [see Warnings and Precautions ( 5.1 )] . • Hepatotoxicity [see Warnings and Precautions ( 5.2 )]. • Immune Reconstitution Syndrome [see Warnings and Precautions ( 5.4 )] . The most common adverse reactions of moderate to severe intensity and incidence at least 2% (in those receiving TIVICAY in any one adult trial) are insomnia, fatigue, and headache. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact ViiV Healthcare at 1-877-844-8872 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch . 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared with rates in the clinical trials of another drug and may not reflect the rates observed in practice. Clinical Trials Experience in Adult Subjects Treatment-Naïve Subjects: The safety assessment of TIVICAY in HIV‑1–infected treatment-naïve subjects is based on the analyses of data from 2 international, multicenter, double-blind trials, SPRING-2 (ING113086) and SINGLE (ING114467) and data from the international, multicenter, open-label FLAMINGO (ING114915) trial. In SPRING-2, 822 subjects were randomized and received at least 1 dose of either TIVICAY 50 mg once daily or raltegravir 400 mg twice daily, both in combination with fixed-dose dual nucleoside reverse transcriptase inhibitor (NRTI) treatment (either abacavir sulfate and lamivudine [EPZICOM] or emtricitabine/tenofovir [TRUVADA]). There were 808 subjects included in the efficacy and safety analyses. Through 96 weeks, the rate of adverse events leading to discontinuation was 2% in both treatment arms. In SINGLE, 833 subjects were randomized and received at least 1 dose of either TIVICAY 50 mg with fixed-dose abacavir sulfate and lamivudine (EPZICOM) once daily or fixed-dose efavirenz/emtricitabine/tenofovir (ATRIPLA) once daily (study treatment was blinded through Week 96 and open-label from Week 96 through Week 144). Through 144 weeks, the rates of adverse events leading to discontinuation were 4% in subjects receiving TIVICAY 50 mg once daily + EPZICOM and 14% in subjects receiving ATRIPLA once daily. Treatment‑emergent adverse reactions of moderate to severe intensity observed in at least 2% of subjects in either treatment arm in SPRING-2 and SINGLE trials are provided in Table 5 . Side-by-side tabulation is to simplify presentation; direct comparisons across trials should not be made due to differing trial designs. Table 5. Treatment-Emergent Adverse Reactions of at Least Moderate Intensity (Grades 2 to 4) and at Least 2% Frequency in Treatment-Naïve Subjects in SPRING-2 (Week 96 Analysis) and SINGLE Trials (Week 144 Analysis) NRTI = Nucleoside Reverse Transcriptase Inhibitor. a Includes pooled terms: rash, rash generalized, rash macular, rash maculo-papular, rash pruritic, and drug eruption. System Organ Class/ Preferred Term SPRING-2 SINGLE TIVICAY 50 mg Once Daily + 2 NRTIs (n = 403) Raltegravir 400 mg Twice Daily + 2 NRTIs (n = 405) TIVICAY 50 mg + EPZICOM Once Daily (n = 414) ATRIPLA Once Daily (n = 419) Psychiatric Insomnia <1% <1% 3% 3% Depression <1% <1% 1% 2% Abnormal dreams <1% <1% <1% 2% Nervous System Dizziness <1% <1% <1% 5% Headache <1% <1% 2% 2% Gastrointestinal Nausea 1% 1% <1% 3% Diarrhea <1% <1% <1% 2% Skin and Subcutaneous Tissue Rash a 0 <1% <1% 6% General Disorders Fatigue <1% <1% 2% 2% Ear and Labyrinth Vertigo 0 <1% 0 2% In addition, Grade 1 insomnia was reported by 1% and less than 1% of subjects receiving TIVICAY and raltegravir, respectively, in SPRING-2; whereas in SINGLE the rates were 7% and 4% for TIVICAY and ATRIPLA, respectively. These events were not treatment limiting. In a multicenter, open-label trial (FLAMINGO), 243 subjects received TIVICAY 50 mg once daily versus 242 subjects who received darunavir 800 mg/ritonavir…