Leaflet YEYTUO 300mg film-coated tablets

Product code:
W72177001
Indicated for:
HIV-1 infection
Route of administration:
oral
Substance:
lenacapavir (viral entry inhibitor)
ATC
J05AX31 — Antiinfectives for systemic use | Direct acting antivirals | Other antivirals
Lenacapavir is an antiretroviral medication used for the treatment of HIV-1 infection. It acts as a capsid inhibitor, interfering with multiple stages of the viral replication cycle.

The medication is administered as a subcutaneous injection, usually once every six months, under the supervision of a specialist. It is used in combination with other antiretroviral drugs to enhance treatment efficacy.

Side effects may include injection site reactions, nausea, fatigue, or headaches. In rare cases, severe allergic reactions may occur.

Lenacapavir is not recommended for patients with hypersensitivity to this medication or those taking drugs that interact with capsid metabolism.

General data about YEYTUO 300mg

Substance:
lenacapavir
Product code:
W72177001
Concentration:
300mg
Pharmaceutical form:
film-coated tablets
Product type:
Generic medicine
Prescription status:
S — Medicines dispensed with a restricted medical prescription, reserved for use in certain specialized fields.

Marketing authorisation

Manufacturer:
GILEAD SCIENCES IRELAND UC - IRLANDA
Holder:
GILEAD SCIENCES IRELAND UC - IRLANDA
Number:
1976/2025/01
Shelf life:
3 years

Pharmaceutical forms available for lenacapavir

Concentrations available for lenacapavir

  • 300mg
  • 464mg

Official documents

Added to database:
03/09/2025
Source record updated:
22/09/2026

Precautions:

Breastfeeding warning

Use during breastfeeding only on medical advice.

Pregnancy warning

Use during pregnancy only on medical advice.

Contents of the package leaflet for the medicine YEYTUO 300mg film-coated tablets

Leaflet YEYTUO 300mg

1. NAME OF THE MEDICINAL PRODUCT

Yeytuo 300 mg film-coated tablets

2. QUALITATIVE AND QUANTITATIVE COMPOSITION

Each film-coated tablet contains lenacapavir sodium equivalent to 300 mg of lenacapavir.

For the full list of excipients, see section 6.1.

3. PHARMACEUTICAL FORM

Film-coated tablet (tablet)

Beige, capsule-shaped, film-coated tablets of dimensions 10 mm x 21 mm, debossed with “GSI” onone side of the tablet and “62L” on the other side of the tablet.

4. CLINICAL PARTICULARS

4.1 Therapeutic indications

Yeytuo tablet is indicated in combination with safer sex practices for pre-exposure prophylaxis (PrEP)to reduce the risk of sexually acquired HIV-1 infection in adults and adolescents with increased HIV-1acquisition risk, weighing at least 35 kg for:

* oral loading

* oral bridging(see sections 4.2, pct. 4.4 and 5.1).

4.2 Posology and method of administration

Yeytuo should be prescribed by a healthcare professional experienced in the management of HIVprevention.

All individuals must be screened for HIV-1 prior to initiating lenacapavir and additionally as clinicallyappropriate (see sections 4.3 and 4.4). A combined antigen/antibody test as well as an HIV-RNA-based test should be negative. Prescribers are advised to perform both tests, even if the result of the

HIV-RNA-based test will become available after initiation of lenacapavir. If a combined testingstrategy including both tests is not available, testing should follow local guidelines.

Prior to starting Yeytuo, healthcare professionals should identify individuals for whom the requiredinitiation and every 6-month continuation injection dosing schedule is appropriate, and counselindividuals about the importance of adherence to scheduled dosing visits (see section 4.4).

Posology

The dosing schedule in adults and adolescents weighing at least 35 kg consists of a required initiationdosing (subcutaneous injections and oral tablets) (Table 1), followed by once every 6-monthcontinuation dosing (subcutaneous injections).

Initiation

On Day 1, the required dose is 927 mg of lenacapavir administered by subcutaneous injection and600 mg taken orally. On Day 2, the required dose is 600 mg taken orally.

Table 1: Dosing schedule for lenacapavir initiation

Time

Dose of lenacapavir: Initiationa

Day 1 927 mg subcutaneous injection (2 x 1.5 mL injectionsb)600 mg orally (2 x 300 mg tablets)

Day 2 600 mg orally (2 x 300 mg tablets)a The complete initiation dosing schedule, consisting of subcutaneous injections and oral tablets, is required; the efficacyof lenacapavir has only been established with this dosing schedule.b Two injections, with the second injection at least 5 centimetres from the first injection (see Method of Administration inthe Yeytuo solution for injection SmPC).

Missed initiation dose

If the Day 1 or Day 2 oral initiation dose (600 mg) is missed, it should be taken as soon as possible.

Day 1 and Day 2 doses should not be taken on the same day.

Anticipated delayed injections

During continuation dosing, if the scheduled 6-month injection is anticipated to be delayed by morethan 2 weeks, lenacapavir tablets may be used for oral bridging on an interim basis (for up to 6 monthsif needed) until injections resume. Oral bridging should be initiated within 26 to 28 weeks from thelast injection. The dosing schedule is 300 mg (1 tablet) taken orally once every 7 days. Resume thecontinuation injection dosage within 7 days after the last oral dose.

Vomiting

If the individual vomits within 3 hours of taking an oral dose of lenacapavir, another oral dose shouldbe taken. If the individual vomits more than 3 hours after taking an oral dose of lenacapavir there is noneed to take another oral dose of lenacapavir, and the scheduled dosing regimen should continue.

Special populations
Elderly

No dose adjustment of lenacapavir is required for elderly individuals. There are limited data availableon the use of lenacapavir in individuals aged 65 years and above (see section 5.2).

Renal impairment

No dose adjustment of lenacapavir is required in individuals with mild, moderate, or severe renalimpairment (creatinine clearance [CrCl] ≥ 15 mL/min). Lenacapavir has not been studied inindividuals with end stage renal disease (CrCl < 15 mL/min or on renal replacement therapy) (seesection 5.2), therefore lenacapavir should be used with caution in these individuals.

Hepatic impairment

No dose adjustment of lenacapavir is required in individuals with mild or moderate hepaticimpairment (Child-Pugh Class A or B). Lenacapavir has not been studied in individuals with severehepatic impairment (Child-Pugh Class C) (see section 5.2), therefore lenacapavir should be used withcaution in these individuals.

Paediatric population

Safety and efficacy of lenacapavir in children and adolescents weighing less than 35 kg have not beenestablished. No data are available.

Method of administration

For oral use.

Lenacapavir tablets should be taken orally with or without food (see section 5.2). The film-coatedtablet should not be chewed, or crushed, because the effects on lenacapavir absorption have not beenstudied. For individuals who are unable to swallow the tablet whole, the tablet may be split in half andboth halves taken one after the other, ensuring that the full dose is taken immediately.

4.3 Contraindications

Hypersensitivity to the active substance or to any of the excipients listed in section 6.1.

Use in individuals with unknown HIV-1 status (see section 4.4).

Co-administration with strong inducers of CYP3A, P-gp, and UGT1A1, such as:

* antimycobacterials: rifampicin

* anticonvulsants: carbamazepine, phenytoin

* herbal products: St. John’s wort (Hypericum perforatum)(see section 4.5).

4.4 Special warnings and precautions for use

Prevention strategy

Yeytuo should only be used to prevent HIV-1 acquisition in individuals confirmed to be

HIV-negative. HIV-1 negative status should be confirmed prior to initiation of lenacapavir, andadditionally as clinically appropriate in individuals receiving lenacapavir.

If recent (<1 month) exposures to HIV-1 are suspected or clinical symptoms consistent with acute

HIV-1 infection are present, HIV-1 status should be reconfirmed.

Yeytuo should be used to prevent HIV-1 acquisition as part of a strategy to reduce the risk of sexuallytransmitted infections (STIs). Individuals should be identified for whom the required initiation andevery 6-month continuation injection dosing schedule is appropriate. Nonadherence to the requiredinitiation and continuation dosing schedule (see section 4.2) may lead to HIV-1 acquisition.

Individuals should be counselled and supported on adhering to the lenacapavir administrationschedule, on the use of other measures to prevent STIs, and on the importance of testing for HIV-1 andother STIs.

Mean lenacapavir plasma concentrations associated with significant antiviral activity were reached by

Day 2 of the required initiation dosing and were maintained through the dosing interval of 26 weeks(see section 5.2). The exact time from initiation of lenacapavir for HIV-1 PrEP to maximal protectionagainst HIV 1 infection is unknown.

Risk of Resistance

Lenacapavir may not always be effective in preventing HIV-1 infection (see section 5.1). There is arisk of developing resistance to lenacapavir if an individual acquires HIV-1 either before or whenreceiving Yeytuo, or following discontinuation of Yeytuo. To minimise this risk, it is essential toconfirm HIV-1 negative status before each subsequent injection, and additionally as clinicallyappropriate. Yeytuo alone does not constitute a complete regimen for HIV-1 treatment and mutationshave emerged in some individuals with undetected HIV-1 infection who were only taking Yeytuo.

Individuals who are confirmed to have HIV-1 must immediately begin a complete HIV-1 treatmentregimen to reduce the risk of developing resistance.

Co-administration of other medicinal products

Co-administration with medicinal products that are moderate inducers of CYP3A and P-gp is notrecommended (see section 4.5).

Co-administration with medicinal products that are strong inhibitors of CYP3A, P-gp, and UGT1A1together (i.e. all 3 pathways) is not recommended (see section 4.5).

Excipients

This medicinal product contains less than 1 mmol sodium (23 mg) per tablet, that is to say essentially‘sodium-free’.

4.5 Interaction with other medicinal products and other forms of interaction

Effect of other medicinal products on the pharmacokinetics of lenacapavir

Lenacapavir is a substrate of CYP3A, P-gp and UGT1A1. Strong inducers of CYP3A, P-gp, and

UGT1A1 may significantly decrease plasma concentrations of lenacapavir which may result inreduced effectiveness of lenacapavir. Concomitant administration of lenacapavir with strong inducersof CYP3A, P-gp, and UGT1A1 is contraindicated (see section 4.3). Moderate inducers of CYP3A and

P-gp may decrease plasma concentrations of lenacapavir. Concomitant administration of lenacapavirwith moderate inducers of CYP3A and P-gp is not recommended (see section 4.4).

Strong inhibitors of CYP3A, P-gp and UGT1A1 together (i.e., all 3 pathways) may significantlyincrease plasma concentrations of lenacapavir, therefore co-administration is not recommended (seesection 4.4).

Strong CYP3A4 inhibitors alone or strong inhibitors of CYP3A4 and P-gp together do not result in aclinically meaningful increase in lenacapavir exposure.

Effect of lenacapavir on the pharmacokinetics of other medicinal products

Lenacapavir is a moderate inhibitor of CYP3A and a P-gp inhibitor. Caution is advised if lenacapaviris co-administered with a sensitive CYP3A and/or P-gp substrate with a narrow therapeutic index.

Lenacapavir is not a clinically meaningful inhibitor of BCRP and does not inhibit OATP.

Clinical drug interaction data for lenacapavir as victim are from studies with oral lenacapavir. Clinicaldrug interaction data for subcutaneous lenacapavir are not available.

Table 2: Interactions between Yeytuo and other medicinal products

Medicinal product by Effects on concentrations. Recommendation concerningtherapeutic areas Mean percent change in AUC, co-administration with

Cmax lenacapavir

ANTIMYCOBACTERIALS

Rifampicina,b Lenacapavir: Co-administration is(600 mg once daily) AUC: ↓84% contraindicated (see section 4.3).(strong inducer of CYP3A, and an Cmax: ↓55%inducer of P-gp and UGT)

Rifabutin Interaction not studied. Co-administration is not

Rifapentine recommended (see section 4.4).

Co-administration of rifabutin orrifapentine may decreaselenacapavir plasma concentrations.

ANTICONVULSANTS

Carbamazepine Interaction not studied. Co-administration is

Phenytoin contraindicated (see section 4.3).

Oxcarbazepine Co-administration of Co-administration is not

Phenobarbital carbamazepine, oxcarbazepine, recommended (see section 4.4).

phenobarbital, or phenytoin withlenacapavir may decrease Alternative anticonvulsantslenacapavir plasma concentrations. should be considered.

Medicinal product by Effects on concentrations. Recommendation concerningtherapeutic areas Mean percent change in AUC, co-administration with

Cmax lenacapavir

HERBAL PRODUCTS

St. John’s wort (Hypericum Interaction not studied. Co-administration isperforatum) contraindicated (see section 4.3).

Co-administration of St.

John’s wort may decreaselenacapavir plasma concentrations.

ANTIRETROVIRAL AGENTS

Atazanavir/cobicistat b,c,d Lenacapavir: Co-administration of lenacapavir(300 mg/150 mg once daily) AUC: ↑ 321% and strong inhibitors of CYP3A,(strong inhibitor of CYP3A, and an Cmax: ↑ 560% P-gp, and UGT1A1 is notinhibitor UGT1A1 and P-gp.) recommended (see section 4.4).

Efavirenz b,c,d Lenacapavir: Co-administration is not(600 mg once daily) AUC:↓ 56% recommended (see section 4.4).(moderate inducer of CYP3A and Cmax:↓ 36%an inducer of P-gp)

Cobicistat b,c,d Lenacapavir: No dose adjustment of lenacapavir(150 mg once daily) (strong AUC: ↑ 128% is required.inhibitor of CYP3A and an Cmax:↑ 110%inhibitor of P-gp)

Darunavir/cobicistat b,c,d Lenacapavir:(800 mg/150 mg once daily) AUC:↑ 94%(strong inhibitor of CYP3A, and an Cmax:↑ 130%inhibitor and inducer of P-gp)

Tenofovir alafenamidec,e Tenofovir alafenamide: No dose adjustment of tenofovir(25 mg) AUC:↑ 32% alafenamide is required.(substrate of P-gp) Cmax:↑ 24%

Tenofovirf:

AUC:↑ 47%

Cmax:↑ 23%

ERGOT DERIVATIVES

Dihydroergotamine Interaction not studied. Caution is warranted when

Ergotamine dihydroergotamine or ergotamine,

Plasma concentrations of these is co-administered withmedicinal products may be lenacapavir.increased when co-administeredwith lenacapavir.

PHOSPHODIESTERASE-5 (PDE-5) INHIBITORS

Sildenafil Interaction not studied. Use of PDE-5 inhibitors for

Tadalafil pulmonary arterial hypertension:

Vardenafil Plasma concentration of PDE-5 Co-administration with tadalafil isinhibitors may be increased when not recommended.co-administered with lenacapavir.

Use of PDE-5 inhibitors forerectile dysfunction:

Sildenafil: A starting dose of25 mg is recommended.

Vardenafil: No more than 5 mg ina 24-hour period.

Tadalafil:

* For use as needed: no morethan 10 mg every 72 hours

* For once daily use: dose not toexceed 2.5 mg

Medicinal product by Effects on concentrations. Recommendation concerningtherapeutic areas Mean percent change in AUC, co-administration with

Cmax lenacapavir

CORTICOSTEROIDS (systemic)

Dexamethasone Interaction not studied. Co-administration of lenacapavir

Hydrocortisone/cortisone with corticosteroids whose

Plasma concentrations of exposures are significantlycorticosteroids may be increased increased by CYP3A inhibitorswhen co-administered with can increase the risk for Cushing'slenacapavir. syndrome and adrenalsuppression. Initiate with the

Plasma concentrations of lowest starting dose and titratelenacapavir may decrease when co- carefully while monitoring foradministered with systemic safety.dexamethasone.

Caution is warranted whensystemic dexamethasone isco-administered with lenacapavir,particularly for long-term use.

Alternative corticosteroids shouldbe considered.

HMG-CoA REDUCTASE INHIBITORS

Lovastatin Interaction not studied. Initiate lovastatin and simvastatin

Simvastatin with the lowest starting dose and

Plasma concentrations of these titrate carefully while monitoringmedicinal products may be for safety (e.g. myopathy).

Atorvastatin increased when co-administered No dose adjustment ofwith lenacapavir. atorvastatin is required.

Pitavastatinc,e (2 mg single dose; Pitavastatin: No dose adjustment ofsimultaneous or 3 days after AUC:↔ pitavastatin and rosuvastatin islenacapavir) Cmax:↔ required.(substrate of OATP)

Rosuvastatinc,e (5 mg single dose) Rosuvastatin:(substrate of BCRP and OATP) AUC:↑ 31%

Cmax:↑ 57%

ANTIARRHYTHMICS

Digoxin Interaction not studied. Caution is warranted andtherapeutic concentration

Plasma concentration of digoxin monitoring of digoxin ismay be increased when recommended.co-administered with lenacapavir.

Medicinal product by Effects on concentrations. Recommendation concerningtherapeutic areas Mean percent change in AUC, co-administration with

Cmax lenacapavir

SEDATIVES/HYPNOTICS

Midazolamc,e (2.5 mg single dose; Midazolam: Caution is warranted whenoral; simultaneous administration) AUC: ↑ 259% midazolam or triazolam, is(substrate of CYP3A) Cmax: ↑ 94% co-administered with lenacapavir.

1-hydroxymidazolamg:

AUC: ↓ 24%

Cmax: ↓ 46%

Midazolamc,e (2.5 mg single dose; Midazolam:oral;1 day after lenacapavir) AUC: ↑ 308%(substrate of CYP3A) Cmax: ↑ 116%1-hydroxymidazolamg:

AUC: ↓ 16%

Cmax: ↓ 48%

Triazolam Interaction not studied.

Plasma concentration of triazolammay be increased whenco-administered with lenacapavir.

ANTICOAGULANTS

Direct Oral Anticoagulants Interaction not studied. Due to potential bleeding risk,(DOACs) dose adjustment of DOAC may be

Rivaroxaban Plasma concentration of DOAC required. Consult the Summary of

Dabigatran may be increased when Product Characteristics of the

Edoxaban co-administered with lenacapavir. DOAC for further information onuse in combination with moderate

CYP3A inhibitors and/or P-gpinhibitors.

ANTIFUNGALS

Voriconazolea,b,h (400 mg twice Lenacapavir: No dose adjustment of lenacapavirdaily/200 mg twice daily) AUC:↑ 41% is required.(strong CYP3A inhibitor) Cmax:↔

Itraconazole Interaction not studied.

Ketoconazole

Plasma concentration oflenacapavir may be increased whenco-administered with itraconazoleor ketoconazole.

H2-RECEPTOR ANTAGONISTS

Famotidinea,b (40 mg once daily, Famotidine: No dose adjustment of famotidine2 hours before lenacapavir) AUC:↑ 28% is required.

Cmax:↔

ORAL OR LONG-ACTING CONTRACEPTIVES

Long-acting contraceptives: Observed data does not indicate No dose adjustment of oral or

Medroxyprogesterone acetate clinically relevant changes in the long-acting contraceptives is

Etonogestrel exposure of long-acting required.

Norethisterone enanthate contraceptives.

Oral contraceptives: Interaction not studied.

Ethinylestradiol

Progestins Plasma concentrations of oralcontraceptives may be increasedwhen co-administered withlenacapavir.

Medicinal product by Effects on concentrations. Recommendation concerningtherapeutic areas Mean percent change in AUC, co-administration with

Cmax lenacapavir

GENDER AFFIRMING HORMONES (feminising or masculinising)

Estradiol Observed data does not indicate No dose adjustment of these

Testosterone clinically relevant changes in the gender affirming hormones isexposure of estradiol and required.testosterone.

Anti-androgens Interaction not studied.

Progestogen

Plasma concentrations of thesemedicinal products may beincreased when co-administeredwith lenacapavir.

a Fasted.b This study was conducted using lenacapavir 300 mg single dose administered orally.c Fed.d These antiretroviral medicinal products are probes for the referenced enzymes/transporters and are not to be co-administered with lenacapavir for PrEP.e This study was conducted using lenacapavir 600 mg single dose following a loading regimen of 600 mg twice daily for 2days, single 600 mg doses of lenacapavir were administered orally with each co-administered medicinal product.f Tenofovir alafenamide is converted to tenofovir in vivo.g Major active metabolite of midazolam.h This study was conducted using voriconazole 400 mg loading dose twice daily for a day, followed by 200 mgmaintenance dose twice daily.

4.6 Fertility, pregnancy and lactation

Individuals of childbearing potential

If an individual plans a pregnancy, the benefits and the risks of initiating or continuing Yeytuo duringpregnancy should be discussed.

Pregnancy

There are limited data (130 birth outcomes) from the use of lenacapavir in pregnant women. The ratesof adverse pregnancy outcomes in participants who received Yeytuo were similar to reportedbackground rates.

Animal studies do not indicate direct or indirect harmful effects with respect to reproductive toxicity(see section 5.3).

Yeytuo may be considered during pregnancy if the expected benefit outweighs the potential risk to thefoetus.

Breast-feeding

Lenacapavir is present in human milk. Lenacapavir was detected at low levels in infants who werebreastfed by individuals who became pregnant while receiving Yeytuo (see section 5.2). There isinsufficient information on the effects of lenacapavir in newborns/infants.

Yeytuo may be considered during breastfeeding if the expected benefit outweighs the potential risk tothe child.

Fertility

There are no data on the effects of lenacapavir on human male or female fertility. Animal studiesindicate no effects of lenacapavir on male or female fertility (see section 5.3).

4.7 Effects on ability to drive and use machines

Yeytuo is expected to have no or negligible influence on the ability to drive and use machines.

4.8 Undesirable effects

No adverse reactions to lenacapavir taken orally were identified in adults or adolescents in PURPOSE1 and PURPOSE 2.

Reporting of suspected adverse reactions

Reporting suspected adverse reactions after authorisation of the medicinal product is important. Itallows continued monitoring of the benefit/risk balance of the medicinal product. Healthcareprofessionals are asked to report any suspected adverse reactions via the national reporting systemlisted in Appendix V.

4.9 Overdose

If overdose occurs the individual must be monitored for signs or symptoms of adverse reactions.

Treatment of overdose with Yeytuo consists of general supportive measures including monitoring ofvital signs as well as observation of the clinical status of the individual. As lenacapavir is highlyprotein bound, it is unlikely to be significantly removed by dialysis.

5. PHARMACOLOGICAL PROPERTIES

5.1 Pharmacodynamic properties

Pharmacotherapeutic group: Antivirals for systemic use, other antivirals, ATC code: J05AX31

Mechanism of action

Lenacapavir is a multistage, selective inhibitor of HIV-1 capsid function that directly binds to theinterface between capsid protein (CA) subunits. Lenacapavir inhibits HIV-1 replication by interferingwith multiple, essential steps of the viral lifecycle, including capsid-mediated nuclear uptake of HIV-1proviral DNA (by blocking nuclear import proteins binding to capsid), virus assembly and release (byinterfering with Gag/Gag-Pol functioning, reducing production of CA subunits), and capsid coreformation (by disrupting the rate of capsid subunit association, leading to malformed capsids).

Antiviral activity and selectivity in vitro

The antiviral activity of lenacapavir against laboratory and clinical isolates of HIV-1 was assessed inlymphoblastoid cell lines, PBMCs, primary monocyte/macrophage cells, and CD4+ T-lymphocytes.

The EC50 and selectivity (CC50/EC50) values ranged from 30 to 190 pM and 140,000 to >1,670,000,respectively, for wild-type (WT) HIV-1 virus. The protein-adjusted EC95 for lenacapavir was 4 nM(3.87 ng per mL) in the MT-4 T-cell line for wild-type HIV-1 virus.

Lenacapavir displayed antiviral activity in cell culture against all HIV-1 groups (M, N, O), includingsubtypes A, A1, AE, AG, B, BF, C, D, E, F, G, H.

Lenacapavir was 15- to 25-fold less active against HIV-2 isolates relative to HIV-1.

Resistance
In cell culture

HIV-1 variants with reduced susceptibility to lenacapavir have been selected in cell culture. In vitroresistance selections with lenacapavir identified 7 mutations in CA: L56I, M66I, Q67H, K70N,

N74D/S, and T107N singly or in dual combination. Phenotypic susceptibility to lenacapavir wasreduced 4- to >3,226-fold, relative to WT virus.

In clinical trials

There were 2 incident infections (infections that occurred after starting lenacapavir for HIV-1 PrEP)among participants in the lenacapavir group of the PURPOSE 1 trial. Both infections occurred afterthe time of the primary analysis. Genotyping of virus in one of the participants revealed no lenacapavirresistance-associated capsid substitutions. The second participant had viral loads that were too low forgenotyping.

There were 3 incident infections among participants in the lenacapavir group of the PURPOSE 2 trial.

One of the infections occurred after the time of the primary analysis. Lenacapavir resistance-associated substitutions were detected in viruses from the 3 participants, 2 with N74D, and 1 with

Q67H/K70R.

Cross resistance

The in vitro antiviral activity of lenacapavir was determined against a broad spectrum of HIV-1site-directed mutants and patient-derived HIV-1 isolates with resistance to the 4 main classes ofantiretroviral agents (NRTIs, NNRTIs, INSTIs and PIs; n = 58), as well as to viruses resistant tomaturation inhibitors (n = 32), and to viruses resistant to the entry inhibitors (EI) class (fostemsavir,ibalizumab, maraviroc, and enfuvirtide; n = 42). These data indicated that lenacapavir remained fullyactive against all variants tested, thereby demonstrating a non-overlapping resistance profile. Inaddition, the antiviral activity of lenacapavir in patient isolates was unaffected by the presence ofnaturally occurring Gag polymorphisms.

Effects on electrocardiogram

In a parallel-design thorough QT/QTc study, lenacapavir had no clinically relevant effect on the QTcFinterval. At supratherapeutic exposures of lenacapavir (16-fold higher than the therapeutic exposuresof lenacapavir), the predicted mean (upper 90% confidence interval) increase in QTcF interval was2.6 (4.8) msec, and there was no association (p = 0.36) between observed lenacapavir plasmaconcentrations and change in QTcF.

Clinical data

The efficacy and safety of lenacapavir in preventing the acquisition of HIV-1 were evaluated in tworandomised, double-blind, active-controlled, multinational trials (PURPOSE 1 and PURPOSE 2).

PURPOSE 1

This study was conducted in sexually active cisgender women. Participants were randomised toreceive lenacapavir per the recommended dosing schedule (see Table 1, section 4.2 in the Yeytuosolution for injection SmPC; n = 2134), once daily emtricitabine/tenofovir alafenamide (FTC/TAF)(n = 2136), or once daily emtricitabine/tenofovir disoproxil fumarate (FTC/TDF) (n = 1068) in a 2:2:1ratio.

The median age of participants was 21 years (range, 16-26); and 99.9% were Black. Baselinecharacteristics in the randomised participants were similar to the screened population.

The efficacy of lenacapavir was established by comparing the HIV-1 incidence in the lenacapavirgroup to the HIV-1 incidence in the FTC/TDF group. Incident HIV-1 infections were observed in none(0%) of the participants in the lenacapavir group compared to 16 (1.5%) participants in the FTC/TDFgroup. Lenacapavir demonstrated superiority with a 100% reduction in the risk of HIV-1 acquisitionover FTC/TDF (Table 3).

Table 3: Overall HIV-1 Infection Outcomes in PURPOSE 1

Lenacapavir FTC/TDF Rate Ratio (95% CI)n = 2134 n = 1068

Person-years 1939 949 -

HIV-1 infections (incidence 0 16 Lenacapavir/ FTC/TDF:

rate per 100 person-years) (0.00) (1.69) 0.000 (0.000, 0.101)p < 0.0001

CI = confidence interval

PURPOSE 2

This study was conducted in sexually active cisgender men, transgender women, transgender men, andgender nonbinary individuals. Participants were randomised to receive lenacapavir per therecommended dosing schedule (see Table 1, section 4.2 in the Yeytuo solution for injection SmPC; n= 2179) or once daily FTC/TDF (n = 1086) in a 2:1 ratio.

The median age of participants was 29 years (range, 17-74); 33% were White; 27% were Black, 13%were Asian; 63% were Hispanic/Latine; 22% identified as gender-diverse (transgender women,transgender men, and gender nonbinary people); and 1% were over 65 years. Baseline characteristicsin the randomised participants were similar to the screened population.

The efficacy of lenacapavir was established by comparing the HIV-1 incidence in the lenacapavirgroup to the HIV-1 incidence in the FTC/TDF group. Incident HIV-1 infections were observed in 2(0.1%) participants in the lenacapavir group compared to 9 (0.8%) participants in the FTC/TDF group.

Lenacapavir demonstrated superiority with an 89% reduction over FTC/TDF (Table 4). HIV-1infections in the two participants receiving lenacapavir were diagnosed using standard serologic HIVtesting.

Table 4: Overall HIV-1 Infection Outcomes in PURPOSE 2

Lenacapavir FTC/TDF Rate Ratio (95% CI)n = 2179 n = 1086

Person-years 1938 967 -

HIV-1 infections (incidence 2 9 Lenacapavir/ FTC/TDF:

rate per 100 person-years) (0.1) (0.93) 0.111 (0.024, 0.513)p = 0.00245

CI = confidence interval

Paediatric population

The European Medicines Agency has deferred the obligation to submit the results of studies withlenacapavir in one or more subsets of the paediatric population in prevention of HIV-1 (see section 4.2for information on paediatric use).

5.2 Pharmacokinetic properties

Absorption
Subcutaneous administration

Absolute bioavailability of lenacapavir following subcutaneous administration was 91% based onpopulation pharmacokinetic analysis. Subcutaneously administered lenacapavir forms a drug depotwhereby lenacapavir is slowly released from the site of administration, with peak plasmaconcentrations occurring 84 days post dose.

Oral administration

Lenacapavir is absorbed following oral administration with peak plasma concentrations occurringapproximately 4 hours after administration of lenacapavir. Absolute bioavailability following oraladministration of lenacapavir is low based on population pharmacokinetic analysis (approximately4 to 7%). Lenacapavir is a substrate of P-gp.

Lenacapavir AUC, Cmax and Tmax were comparable following administration of a low fat (~400 kcal,25% fat) or high fat (~1000 kcal, 50% fat) meal relative to fasted conditions. Oral lenacapavir can beadministered without regard to food.

Pharmacokinetic parameters

The population pharmacokinetic parameter estimates of lenacapavir after oral and subcutaneousadministration to adult and adolescent (weighing at least 35 kg) participants are provided in Table 5.

Similar exposures are achieved when lenacapavir is administered subcutaneously in the abdomen orthigh.

Table 5: Pharmacokinetic parameters of lenacapavir following oral and subcutaneousadministration to adult and adolescent participants receiving Yeytuo

Parameter Day 1 to end of Week 26 Steady State

Mean(%CV)a,b

AUCtau 188112 (41.0) 257332 (38.7)(h*ng/mL)

Cmax 73.8 (55.6) 82.5 (48.4)(ng/mL)

Ctrough 27.0 (58.3) 37.0 (60.7)(ng/mL)

CV = Coefficient of Variationa Simulated exposures utilising population PK analysis.b Mean lenacapavir plasma concentrations reached inhibitory quotient 4 (IQ4; 4-fold greater than the in vitro proteinadjusted 95% effective concentration) associated with significant antiviral activity by Day 2 of the required initiationdosing and were maintained above IQ4 through the dosing interval of 26 weeks.

Distribution

Lenacapavir steady state volume of distribution was 1657 litres based on population pharmacokineticanalysis. Lenacapavir is highly bound to plasma proteins (99.8%).

Biotransformation

Following a single intravenous dose of radiolabelled-lenacapavir to healthy subjects, 76% of the totalradioactivity was recovered from faeces and < 1% from urine. Unchanged lenacapavir was thepredominant moiety in plasma (69%) and faeces (33%). Metabolism played a lesser role inlenacapavir elimination. Lenacapavir was metabolised via oxidation, N-dealkylation, hydrogenation,amide hydrolysis, glucuronidation, hexose conjugation, pentose conjugation, and glutathioneconjugation; primarily via CYP3A and UGT1A1. No single circulating metabolite accountedfor > 10% of plasma drug-related exposure.

Elimination

The median half-life following oral and subcutaneous administration ranged from 10 to 12 days, and8 to 12 weeks, respectively. Systemic clearance of lenacapavir was 3.4 L/h based on populationpharmacokinetic analysis.

Linearity/non-linearity

The single dose pharmacokinetics of lenacapavir after oral administration are non-linear and less thandose proportional over the dose range of 50 to 1800 mg.

The single dose pharmacokinetics of lenacapavir after subcutaneous injection (309 mg/mL) are doseproportional over the dose range of 309 to 927 mg.

Other special population

Age, sex, gender identity, race, ethnicity, and weight

Population pharmacokinetic analysis using data from trials in adults, including a limited number ofelderly participants (n = 19; ≥ 65 to 78 years), and adolescents weighing at least 35 kg did not identifyany clinically relevant differences in the exposure of lenacapavir due to age, sex assigned at birth,gender identity, race, ethnicity, or weight.

Hepatic impairment

The pharmacokinetics of a single 300 mg oral dose of lenacapavir were evaluated in a dedicated Phase1 trial in participants with moderate hepatic impairment (Child-Pugh Class B). Lenacapavir meanexposures (total and unbound) were 1.47- to 2.84-fold and 2.61- to 5.03-fold higher for AUCinf and

Cmax, respectively in individuals with moderate hepatic impairment (Child-Pugh B) compared toparticipants with normal hepatic function. However, this increase is not considered clinically relevantbased on lenacapavir exposure-response. The pharmacokinetics of lenacapavir have not been studiedin individuals with severe hepatic impairment (Child-Pugh C) (see section 4.2).

Renal impairment

The pharmacokinetics of a single 300 mg oral dose of lenacapavir were evaluated in a dedicated studyin participants with severe renal impairment (estimated creatinine clearance ≥ 15and < 30 mL/minute). Lenacapavir exposures were increased (84% and 162% for AUCinf and Cmax,respectively) in participants with severe renal impairment compared with participants with normalrenal function; however, the increase was not considered clinically relevant. The pharmacokinetics oflenacapavir have not been studied in individuals with end-stage renal disease, including those ondialysis (see section 4.2). As lenacapavir is approximately 99.8% protein bound, dialysis is notexpected to alter exposures of lenacapavir.

Pregnancy

No clinically relevant changes in lenacapavir exposure during pregnancy and postpartum wereobserved compared to lenacapavir exposures in non-pregnant participants.

Lactation

The median (Q1, Q3) lenacapavir concentration in human breast milk to maternal plasma ratio inparticipants (n = 102 matched pairs) who received Yeytuo was 0.52 (0.38, 0.77). The median (Q1, Q3)infant plasma concentration (n = 98) was 1.63 ng/mL (0.87, 2.85) as compared to the median (Q1, Q3)matched maternal plasma concentration (n = 96) of 65.65 ng/ml (46.00, 91.10). The median (Q1, Q3)infant-to-mother plasma ratio for lenacapavir in infants (n = 98 matched pairs) who were breastfed byparticipants receiving Yeytuo was 0.02 (0.01, 0.05).

5.3 Preclinical safety data

Non-clinical data revealed no special hazard for humans based on conventional studies of safetypharmacology, repeated dose toxicity, genotoxicity, toxicity to reproduction and development.

Lenacapavir was not mutagenic or clastogenic in conventional genotoxicity assays.

Lenacapavir was not carcinogenic in a 6-month rasH2 transgenic mouse study at doses of up to300 mg/kg/dose once every 13 weeks, which resulted in exposures approximately 88 times theexposure in humans at the recommended human dose (RHD).

In a 2-year rat carcinogenicity study, there were lenacapavir-treatment induced subcutaneous primarysarcomas associated with fibrosis and inflammation present at the injection sites in animalsadministered 927 mg/kg/dose once every 13 weeks. 11/110 animals manifested sarcomas at the highdose where each animal had up to 16 injection sites - corresponding to an incidence of <1% totalinjection sites across animals at the high dose. Drug concentrations in the injection depot sites aredifficult to determine but systemically, the 927 mg/kg dose corresponds to 44 times the exposure inhumans at the RHD. At the no-observed-adverse-effect level (NOAEL), the 309 mg/kg/dosecorresponds to 25 times the exposure in humans at the RHD. Rats are prone to sarcoma formation atthe subcutaneous injection site, but a clinical relevance cannot be excluded considering the longduration of the drug depot in humans. There were no neoplasms associated with systemic exposure tolenacapavir at any dose.

In offspring from rat and rabbit dams treated with lenacapavir during pregnancy, there were notoxicologically significant effects on developmental endpoints.

In rats, male and female fertility was not affected at lenacapavir exposures up to 9 (male) and 6(female) times the human exposure at the RHD. In rats and rabbits, embryofoetal development was notaffected at exposures up to 20 and 159 times the human exposure, respectively, at the RHD. In rats,pre- and postnatal development was not affected at exposures up to 6 times the human exposure at the

RHD.

6. PHARMACEUTICAL PARTICULARS

6.1 List of excipients

Tablet core

Mannitol (E421)

Microcrystalline cellulose (E460)

Croscarmellose sodium (E468)

Copovidone

Magnesium stearate (E572)

Poloxamer

Film coat

Polyvinyl alcohol (E1203)

Titanium dioxide (E171)

Macrogol (E1521)

Talc (E553b)

Iron oxide yellow (E172)

Iron oxide black (E172)

Iron oxide red (E172)

6.2 Incompatibilities

Not applicable.

6.3 Shelf life

3 years

6.4 Special precautions for storage

This medicinal product does not require any special temperature storage conditions. Store in theoriginal package in order to protect from moisture.

6.5 Nature and contents of container

Yeytuo tablets are packaged in white high-density polyethylene (HDPE) bottle containing polyestercoil and silica gel desiccant. Each bottle is capped using a white, continuous thread, child-resistantpolypropylene screw cap with an induction sealed, aluminium-faced liner. Pack size of 4 tablets.

6.6 Special precautions for disposal and other handling

Any unused medicinal product or waste material should be disposed of in accordance with localrequirements.

7. MARKETING AUTHORISATION HOLDER

Gilead Sciences Ireland UC

Carrigtohill

County Cork, T45 DP77

Ireland

8. MARKETING AUTHORISATION NUMBER(S)

EU/1/25/1976/001

9. DATE OF FIRST AUTHORISATION/RENEWAL OF THE AUTHORISATION

Date of first authorisation: 25 August 2025

10. DATE OF REVISION OF THE TEXT

Detailed information on this medicinal product is available on the website of the European Medicines

Agency http://www.ema.europa.eu.

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