Yeztugo Drug Information

is indicated for pre‑exposure prophylaxis (PrEP) to reduce the risk of sexually acquired HIV-1 in adults and adolescents weighing at least 35 kg who are at risk for HIV-1 acquisition. Individuals must have a negative HIV-1 test prior to initiating YEZTUGO. YEZTUGO, a human immunodeficiency virus type 1 (HIV-1) capsid inhibitor, is indicated for pre‑exposure prophylaxis (PrEP) to reduce the risk of sexually acquired HIV-1 in adults and adolescents weighing at least 35 kg who are at risk for HIV-1 acquisition. Individuals must have a negative HIV-1 test prior to initiating YEZTUGO.

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 to rates in the clinical trials of another drug and may not reflect the rates observed in practice. The primary safety assessment of YEZTUGO is based on data from two randomized, double-blind, active-controlled trials, PURPOSE 1 and PURPOSE 2, in which a total of 8616 adult and adolescent participants received YEZTUGO (N=4323), DESCOVY (emtricitabine /tenofovir alafenamide ; N=2135) once daily, or TRUVADA (FTC/tenofovir disoproxil fumarate ; N=2158) once daily for HIV-1 PrEP. In PURPOSE 1, the median duration of exposure to YEZTUGO, DESCOVY, and TRUVADA was 43, 42, and 41 weeks, respectively. In PURPOSE 2, the median duration of exposure to both YEZTUGO and TRUVADA was 39 weeks.

The most common adverse reactions (all Grades) reported in at least 5% of participants receiving YEZTUGO in either PURPOSE 1 or PURPOSE 2 were injection site reactions, headache, and nausea. In PURPOSE 1, <1% of participants in the groups receiving YEZTUGO, DESCOVY or TRUVADA, discontinued due to adverse events (all causality). In PURPOSE 2, 1% of participants in the group receiving YEZTUGO and <1% of participants receiving TRUVADA discontinued due to adverse events (all causality). Table 6 presents the frequency of adverse reactions (all Grades) in at least 2% of participants receiving YEZTUGO in either PURPOSE 1 or PURPOSE 2. Table 6. Adverse Drug Reactions (All Grades) Reported in ≥2% Frequencies of adverse reactions are based on all adverse events attributed to study drug (or to the procedure for injection site reactions) by the investigator. of Participants Receiving YEZTUGO in PURPOSE 1 or PURPOSE 2 PURPOSE 1 PURPOSE 2 Adverse Reaction YEZTUGO N=2140 TRUVADA Participants received placebo subcutaneous injections (polyethylene glycol 400). N=1070 YEZTUGO N=2183 TRUVADA N=1088 Injection Site Reactions 69% 34% 83% 69% Headache 7% 8% 2% 2% Nausea 5% 11% 2% 4% Dizziness 4% 6% <1% 1% Vomiting 4% 7% <1% 1% Diarrhea 4% 4% 2% 2% Injection-Associated Adverse Reactions Local Injection Site Reactions (ISRs) The most frequent adverse reactions associated with lenacapavir injection for subcutaneous use in PURPOSE 1 and PURPOSE 2 were ISRs. The most commonly reported ISRs (all grades) in at least 2% of participants who received YEZTUGO in either PURPOSE 1 or PURPOSE 2 are presented in Table 7. PURPOSE 1 In PURPOSE 1, 69% of participants receiving YEZTUGO experienced ISRs, compared to 35% of participants receiving placebo injections (and DESCOVY or TRUVADA). Most participants who received YEZTUGO had mild (Grade 1, 50%) or moderate (Grade 2, 19%) severity ISRs.

Grade 3 ISRs were reported in 4 (0.2%) participants, and included ulcer and nodule. YEZTUGO was discontinued due to ISRs in 4 (0.2%) participants. None of the ISRs were serious.

The incidence of reported ISRs decreased with subsequent injections. Nodules: Injection site nodule was reported in 64% of participants who received YEZTUGO and resolved more slowly than other ISRs. The median duration of nodules associated with the first injections of YEZTUGO was 350 (interquartile range: 182, 470) days.

The median of the maximum observed nodule diameter from each participant was 3.0 (interquartile range: 2.0, 3.5) cm. Other ISRs: The other ISRs reported in more than 2% of participants who received YEZTUGO were pain (31%), swelling (4%), induration (4%), and pruritus (2%). The median duration of induration, which resolved more slowly than most other ISRs, was 173 (interquartile range: 22, 267) days. The median duration of ISRs, excluding nodules and indurations, was 9 (interquartile range: 4 to 30) days.

PURPOSE 2 In PURPOSE 2, 83% of participants receiving YEZTUGO experienced ISRs, compared to 69% of participants receiving placebo injections (and TRUVADA). Most participants had mild (Grade 1, 66%) or moderate (Grade 2, 17%) severity ISRs. Grade 3 ISRs were reported in 14 (0.6%) participants, and included ulcer, pain, erythema, edema, and dermatitis. YEZTUGO was discontinued due to ISRs in 26 (1.2%) participants.

None of the ISRs were serious. The incidence of reported ISRs decreased with subsequent injections. Nodules: Injection site nodule was reported in 63% of participants who received YEZTUGO and resolved more slowly than other ISRs.

The median duration of nodules associated with the first injections of YEZTUGO was 297 (interquartile range: 176, 423) days. The median of the maximum observed nodule diameter for each participant was 3.0 (interquartile range: 2.0, 4.0) cm. Other ISRs: The other ISRs reported in more than 2% of participants who received YEZTUGO were pain (56%), erythema (17%), induration (16%), swelling (7%), bruising (3%), pruritus (3%), and warmth (2%). The median duration of induration, which resolved more slowly than most other ISRs, was 151 (interquartile range: 15, 267) days.

The median duration of ISRs, excluding nodules and indurations, was 4 (interquartile range: 2 to 8) days. Table 7. Injection Site Reactions (All Grades) Reported in ≥2% Frequencies are based on all injection site reactions attributed to study drug (or to the procedure) by the investigator. of Participants Receiving YEZTUGO in PURPOSE 1 or PURPOSE 2 PURPOSE 1 PURPOSE 2 Injection Site Reactions YEZTUGO N=2140 DESCOVY or TRUVADA Participants received placebo subcutaneous injections (polyethylene glycol 400). N=3205 YEZTUGO N=2183 TRUVADA N=1088 Nodule 64% 17% 63% 39% Pain 31% 24% 56% 53% Induration 4% <1% 16% 10% Swelling 4% 5% 7% 10% Pruritus 2% 1% 3% 3% Erythema 1% 1% 17% 19% Bruising <1% <1% 3% 4% Warmth <1% <1% 2% 2% Nodules and Indurations Dermatopathology In a separate clinical trial (CAPELLA) in participants with HIV-1 who received lenacapavir via subcutaneous injection, skin biopsies of injection site nodules or indurations revealed dermatopathological findings of foreign body inflammation or granulomatous response in some participants.

Effect of Other Drugs on

YEZTUGO Lenacapavir is a substrate of P-gp, UGT1A1, and CYP3A. Strong or Moderate CYP3A Inducers Drugs that are strong or moderate inducers of CYP3A may significantly decrease plasma concentrations of lenacapavir, which may reduce the effectiveness of YEZTUGO. Therefore, dosage modifications (supplemental doses) of YEZTUGO are recommended when initiating strong or moderate CYP3A inducers . Combined P-gp, UGT1A1, and Strong CYP3A Inhibitors Combined P-gp, UGT1A1, and strong CYP3A inhibitors may significantly increase plasma concentrations of YEZTUGO. Concomitant administration of YEZTUGO with these inhibitors is not recommended.

Effect of

YEZTUGO on Other Drugs CYP3A and P-gp Substrates Lenacapavir is a moderate inhibitor of CYP3A and a P-gp inhibitor. The co-administration of YEZTUGO with sensitive substrates of CYP3A or P-gp may increase the concentrations of these substrates and result in the increased risk of their adverse events. See the prescribing information of these sensitive substrates for dosing recommendations or appropriate monitoring of safety.

Due to the long half-life of lenacapavir following subcutaneous administration, YEZTUGO may increase the exposure of drugs primarily metabolized by CYP3A initiated within 9 months after the last subcutaneous dose of YEZTUGO.

Drugs without Clinically Significant Interactions with

YEZTUGO Based on drug interaction studies conducted with YEZTUGO, no clinically significant drug interactions have been observed with: atorvastatin, famotidine, pitavastatin, rosuvastatin, tenofovir alafenamide, and voriconazole.

Pregnancy Pregnancy Exposure Registry There is a pregnancy exposure registry that monitors pregnancy outcomes in individuals exposed to YEZTUGO during pregnancy. Healthcare providers are encouraged to register individuals by calling the Antiretroviral Pregnancy Registry (APR) at 1-800-258-4263. Risk Summary Available data from a randomized, controlled trial (PURPOSE 1) with YEZTUGO use during pregnancy have not identified a drug-associated risk for miscarriage, or adverse maternal or fetal outcomes when compared to the active control (see Data ). The rate of major birth defects in YEZTUGO-exposed pregnancies did not exceed the background prevalence rates. The risk estimates are imprecise due to small numbers of exposed pregnancies (see Data ). There is an increased risk of HIV-1 transmission from the mother to the child during acute HIV-1 infection (see Clinical Considerations ). In animal reproduction studies, no adverse developmental effects were observed when lenacapavir was administered to rats and rabbits at exposures (AUC) ≥7 times the exposure in humans at the recommended human dose (RHD) of YEZTUGO ( see Data ). The APR has been established to monitor for birth defects following prenatal exposure to antiretrovirals.

The APR uses the Metropolitan Atlanta Congenital Defects Program (MACDP) as the U.S. reference population for birth defects in the general population. The background rate for major birth defects is 2.7% in the MACDP. The rate of miscarriage for individual drugs is not reported in the APR. In the U.S. general population, the estimated background risk of miscarriage in clinically recognized pregnancies is 15–20%. The MACDP evaluates mothers and infants from a limited geographic area and does not include outcomes for births that occurred at < 20 weeks gestation. Clinical Considerations Disease-associated maternal and/or embryo/fetal risk Published studies indicate an increased risk of HIV-1 infection during pregnancy and an increased risk of mother to child transmission during acute HIV-1 infection.

In women at risk of acquiring HIV-1, consideration should be given to methods to prevent acquisition of HIV-1, including continuing or initiating YEZTUGO for HIV-1 PrEP, during pregnancy. Data Human Data In a randomized, controlled trial in Uganda and South Africa (PURPOSE 1), there were 208 pregnancies exposed to YEZTUGO with known outcomes and 132 deliveries (both live and non-live). In the active control arm of PURPOSE 1, there were 109 pregnancies exposed to TRUVADA with known outcomes and 61 deliveries (both live and non-live). The adverse pregnancy outcomes of spontaneous abortion, stillbirth, preterm birth, and small for gestational age were similar across both treatment groups. There were two major birth defects in the YEZTUGO arm.

Both were ventricular septal defects. This resulted in a rate of major birth defects that fell within the background prevalence rate for major birth defects. Concentrations of YEZTUGO during each trimester of pregnancy and postpartum were comparable to those in non-pregnant participants.

Animal Data Lenacapavir was administered intravenously to pregnant rabbits (up to 20 mg/kg/day on gestation days (GD) 7 to 19), orally to rats (up to 300 mg/kg/day on GD 6 to 17), and subcutaneously to rats (up to 300 mg/kg on GD 6). No significant toxicological effects on embryo-fetal (rats and rabbits) or pre/postnatal (rats) development were observed at exposures (AUC) approximately 21 times (rats) and 170 times (rabbits) the exposure in humans at the RHD of YEZTUGO.

Pediatric Use The safety and effectiveness of YEZTUGO for HIV-1 PrEP in adolescents weighing at least 35 kg who are at risk for HIV-1 acquisition is supported by 2 adequate and well-controlled trials, PURPOSE 1 and PURPOSE 2, that enrolled both adults and adolescents . PURPOSE 1 and PURPOSE 2 enrolled a total of 128 adolescent participants. In the 59 adolescents who received YEZTUGO, the safety data were comparable to the safety data reported in adults receiving YEZTUGO. HIV-1 testing should be conducted prior to initiating YEZTUGO, prior to each subsequent injection of YEZTUGO, and additionally as clinically appropriate, using a test approved or cleared by the FDA for the diagnosis of acute or primary HIV-1 infection. Adolescents may benefit from additional counseling and appointment reminders to support adherence to the dosing and testing schedule . The safety, effectiveness, and pharmacokinetics of YEZTUGO in pediatric populations weighing less than 35 kg have not been established.

is contraindicated in individuals with unknown or positive HIV-1 status. Unknown or positive HIV-1 status.

No data are available on overdose of YEZTUGO. If overdose occurs, monitor the individual for evidence of toxicity. Treatment of overdose with YEZTUGO consists of general supportive measures including monitoring of vital signs as well as observation of the clinical status of the individual. As lenacapavir is highly bound to plasma proteins, it is unlikely to be significantly removed by dialysis.