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Drug Safety-related Labeling Changes (SrLC)

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SUNLENCA (NDA-215973)

(LENACAPAVIR SODIUM)

Safety-related Labeling Changes Approved by FDA Center for Drug Evaluation and Research (CDER)

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08/27/2026 (SUPPL-24)

Approved Drug Label (PDF)

6 Adverse Reactions

Additions and/or revisions underlined:

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.

Treatment of HIV-1 in Heavily Treatment-Experienced Adults

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8 Use in Specific Populations

8.1 Pregnancy

Additions and/or revisions underlined:

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Risk Summary

Available data from a randomized, controlled trial with lenacapavir use during pregnancy in individuals without HIV-1 have not identified a drug-associated risk for miscarriage, or adverse maternal or fetal outcomes when compared to an active control (see Data). The rate of major birth defects in lenacapavir-exposed pregnancies did not exceed the background prevalence rates. The risk estimates are imprecise due to small numbers of exposed pregnancies (see Data). In animal reproduction studies, no adverse developmental effects were observed when lenacapavir was administered to rats and rabbits at exposures (AUC) ?16 times the exposure in humans at the recommended human dose (RHD) of SUNLENCA (see Data).

The background risk of major birth defects and miscarriage for the indicated population is unknown. The background rate of major birth defects in a U.S. reference population of the Metropolitan Atlanta Congenital Defects Program (MACDP) is 2.7%. The rate of miscarriage is not reported in the APR. The estimated background rate of miscarriage in clinically recognized pregnancies in the U.S. general population is 15 to 20%.

Data

Human Data

In a randomized, controlled trial of individuals without HIV-1 in Uganda and South Africa, there were 208 pregnancies exposed to lenacapavir with known outcomes and 132 deliveries (both live and non-live). In the active control arm of this trial, there were 109 pregnancies 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 lenacapavir 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 lenacapavir during each trimester of pregnancy and postpartum were comparable to those in non-pregnant participants.

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8.2 Lactation

Additions and/or revisions underlined:

Risk Summary

Lenacapavir is present in human milk. Lenacapavir was detected at very low levels in infants who were breastfed by individuals who became pregnant while receiving lenacapavir (see Data). No adverse effects of lenacapavir in breastfed infants have been observed. It is not known if lenacapavir affects milk production.

Potential risks of breastfeeding include: (1) HIV-1 transmission (in infants without HIV-1), (2) developing viral resistance (in infants with HIV-1), and (3) adverse reactions in a breastfed infant similar to those seen in adults.

Data

Human data

The median lenacapavir concentration in human breast milk to maternal plasma ratio in participants (n=8) who received lenacapavir was 0.63 (range: 0.29 to 1.90). The median infant-to-mother plasma ratio for lenacapavir in infants (n=10) who were breastfed by individuals receiving lenacapavir from 0 to less than 13 weeks after delivery was 0.06 (range: 0.01 to 0.20).

17 PCI/PI/MG (Patient Counseling Information/Patient Information/Medication Guide)

MEDICATION GUIDE

Additions and/or revisions underlined:

What is SUNLENCA?

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OR,

  • SUNLENCA tablets are used in adults when starting treatment with the prescription HIV-1 medicine called BIXLENVO.

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Before receiving or taking SUNLENCA, tell your healthcare provider about all your medical conditions, including if you:

  • are pregnant or plan to become pregnant.

    • Tell your healthcare provider if you become pregnant during treatment with SUNLENCA.

    • Pregnancy Exposure Registry: There is a pregnancy exposure registry for women who receive or take SUNLENCA during pregnancy. The purpose of this registry is to collect information about the health of you and your baby. Talk with your healthcare provider about how you can take part in this registry.

  • are breastfeeding or plan to breastfeed. A small amount of SUNLENCA is present in breast milk. Talk with your healthcare provider about the following risks to your baby from breastfeeding during treatment with SUNLENCA:

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  • Do not start a new medicine without telling your healthcare provider. Your healthcare provider can tell you if it is safe to receive or take SUNLENCA with other medicines.

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How should I receive and take SUNLENCA?

If you are receive or take SUNLENCA for the treatment of HIV-1 (not for starting treatment with BIXLENVO):

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  • If you miss or plan to miss your scheduled every 6 months injection of SUNLENCA by more than 2 weeks, contact your healthcare provider right away to discuss your treatment options.

    • If you plan to miss a scheduled SUNLENCA injection, there is the option to temporarily take SUNLENCA tablets. You will take 1 SUNLENCA tablet by mouth 1 time every 7 days for up to 6 months, until your injections resume.

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If you take SUNLENCA tablets for starting treatment with BIXLENVO:

  • Your treatment includes SUNLENCA tablets, for the first 2 days only, and another medicine called BIXLENVO tablets.

  • Take BIXLENVO tablets and SUNLENCA tablets by mouth, with or without food.

  • You dosing schedule will start as follows:

  • On Day 1, you will take 1 BIXLENVO tablet and 2 SUNLENCA tablets.

  • On Day 2, you will take 1 BIXLENVO tablet and 2 SUNLENCA tablets.

  • It is very important that you take BIXLENVO with SUNLENCA on these first 2 days. Contact your healthcare provider if you have questions

  • You dosing schedule will then continue as follows:

    • On Day 3 and each day after, you will take 1 BIXLENVO tablet each day.

If you miss a dose of SUNLENCA on Day 1 or Day 2, take it as soon as possible. Do not take Day 1 and Day 2 doses of SUNLENCA on the same day.

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How should I store SUNLENCA?

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  • SUNLENCA bottle has a child resistant cap closure.

  • SUNLENCA blister pack has a sealed child resistant flexible laminated pouch.

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PATIENT COUNSELING INFORMATION

Additions and/or revisions underlined:

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Missed Injection Dose: Treatment of HIV-1 in Heavily Treatment-Experienced Adults

Inform patients that SUNLENCA can remain in the body for up to 12 months or longer after receiving their last injection. Advise patients to contact their healthcare provider if they miss or plan to miss a scheduled injection visit and that oral SUNLENCA therapy may be used for up to 6 months to replace missed injections. Advise patients that oral dosing should be used on an interim basis only and that the maintenance injection dosage should be resumed at the earliest possible opportunity [see Dosage and Administration (2.2, 2.4) and Warnings and Precautions (5.2)].

Missed Oral Initiation Dose: Oral Loading for Initiation of BIXLENVO

Inform patients that if they miss one of the two days of oral initiation doses of SUNLENCA given with BIXLENVO to take it as soon as possible [see Dosage and Administration (2.4)].

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11/25/2024 (SUPPL-6)

Approved Drug Label (PDF)

5 Warnings and Precautions

5.3 Injection Site Reactions

Additions and/or revisions underlined:

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Improper administration (intradermal injection) has been associated with serious injection site reactions, including necrosis and ulcer [see Adverse Reactions (6)]. Ensure SUNLENCA is only administered subcutaneously in the abdomen [see Dosage and Administration (2.4)].

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6 Adverse Reactions

6.2 Postmarketing Experience

Newly added subsection

In addition to adverse reactions reported from clinical trials, the following adverse reactions have been identified during postmarketing use. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure.

General disorders and administration site conditions Injection site necrosis [see Warnings and Precautions (5.3)].

7 Drug Interactions

Additions to the clinical comment and effects of concentration sections of table 5 regarding interactions with systemically administered dexamethasone; please refer to label for complete information.

17 PCI/PI/MG (Patient Counseling Information/Patient Information/Medication Guide)

PATIENT COUNSELING INFORMATION

Newly added information:

Missed Dose

Inform patients that SUNLENCA can remain in the body for up to 12 months or longer after receiving their last injection. Advise patients to contact their healthcare provider if they miss or plan to miss a scheduled injection visit and that oral SUNLENCA therapy may be used for up to 6 months to replace missed injections. Advise patients that oral dosing should be used on an interim basis only and that the maintenance injection dosage should be resumed at the earliest possible opportunity [see Dosage and Administration (2.3) and Warnings and Precautions (5.2)].

PATIENT INFORMATION

Additions and/or revisions underlined:

How should I receive and take SUNLENCA?

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  • If you miss or plan to miss your scheduled every 6 months injection of SUNLENCA, call your healthcare provider right away to discuss your treatment options.

    • If you plan to miss a scheduled SUNLENCA injection, there is the option to temporarily take SUNLENCA tablets. You will take 1 SUNLENCA tablet by mouth 1 time every 7 days, until your injections resume.

    • It is important to continue SUNLENCA treatment as your healthcare provider tells you. Missing SUNLENCA treatment may cause the HIV-1 virus to change (mutate) and become harder to treat (resistant).

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07/17/2024 (SUPPL-5)

Approved Drug Label (PDF)

8 Use in Specific Populations

8.2 Lactation

Additions and/or revisions underlined:

Risk Summary

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Potential risks of breastfeeding include: (1) HIV-1 transmission (in HIV-1–negative infants), (2) developing viral resistance (in HIV-1–positive infants), and (3) adverse reactions in a breastfed infant similar to those seen in adults.

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17 PCI/PI/MG (Patient Counseling Information/Patient Information/Medication Guide)

PATIENT COUNSELING INFORMATION

Additions and/or revisions underlined:

…

Lactation

Inform individuals with HIV-1 infection that the potential risks of breastfeeding include: (1) HIV-1 transmission (in HIV-1–negative infants), (2) developing viral resistance (in HIV-1–positive infants), and (3) adverse reactions in a breastfed infant similar to those seen in adults [see Use in Specific Populations (8.2)].

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PATIENT INFORMATION

Additions and/or revisions underlined:

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Before receiving or taking SUNLENCA, tell your healthcare provider about all your medical conditions, including if you:

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  • are breastfeeding or plan to breastfeed. It is not known whether SUNLENCA will pass to your baby in your breast milk. Talk with your healthcare provider about the following risks to your baby from breastfeeding during treatment with SUNLENCA:

    • The HIV-1 virus may pass to your baby if your baby does not have HIV-1 infection.

    • The HIV-1 virus may become harder to treat if your baby has HIV-1 infection.

    • Your baby may get side effects from SUNLENCA.

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