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Lenacapavir: Drug information

Lenacapavir: Drug information
(For additional information see "Lenacapavir: Patient drug information")

For abbreviations, symbols, and age group definitions used in Lexicomp (show table)
Brand Names: US
  • Sunlenca
Brand Names: Canada
  • Sunlenca
Pharmacologic Category
  • Antiretroviral, Capsid Inhibitor (Anti-HIV)
Dosing: Adult
HIV-1 infection, treatment

HIV-1 infection, treatment: Note: Initiate lenacapavir using 1 of 2 recommended dosage regimens; use in combination with other antiretroviral agents.

Lenacapavir Treatment Regimen for Initiation and Maintenance

Treatment time

Lenacapavir dosage

Initiation dosing

2-day initiation

15-day initiation

Day 1

Oral: 600 mg once and

SUBQ: 927 mg once

Oral: 600 mg once

Day 2

Oral: 600 mg once

Oral: 600 mg once

Day 8

Oral: 300 mg once

Day 15

SUBQ: 927 mg once

Maintenance dosing

SUBQ: 927 mg every 6 months (26 weeks) from the date of last injection ±2 weeks

Missed dose:

Oral: Canadian labeling: 15-day initiation:

Day 2 (600 mg) dose: If <6 days has elapsed, administer 600 mg as soon as possible and 300 mg on day 8. If ≥6 days has elapsed, administer 600 mg as soon as possible and 300 mg on day 15.

Day 8 (300 mg) dose: If <6 days has elapsed, administer 300 mg as soon as possible and if ≥6 days has elapsed, administer 300 mg on day 15.

Note: SUBQ injection should be administered on day 15 regardless of when the day 2 or day 8 oral dose is administered.

SUBQ: If more than 28 weeks elapse since the last injection during the maintenance period, and if clinically appropriate to continue treatment with lenacapavir, restart initiation dosage regimen from day 1, using either 2-day or 15-day initiation.

Dosage adjustment for concomitant therapy: Significant drug interactions exist, requiring dose/frequency adjustment or avoidance. Consult drug interactions database for more information.

Dosing: Kidney Impairment: Adult

CrCl ≥15 mL/minute: No dosage adjustment necessary.

CrCl <15 mL/minute: There are no dosage adjustments provided in the manufacturer's labeling (has not been studied).

Dialysis: There are no dosage adjustments provided in the manufacturer's labeling; however, not expected to be significantly removed by dialysis (highly protein bound).

Dosing: Hepatic Impairment: Adult

Mild or moderate impairment (Child-Pugh class A or B): No dosage adjustment necessary.

Severe impairment (Child-Pugh class C): There are no dosage adjustments provided in the manufacturer's labeling (has not been studied).

Dosing: Older Adult

Refer to adult dosing.

Adverse Reactions (Significant): Considerations
Injection-site reactions

Injection-site reactions have been commonly reported in patients using SUBQ lenacapavir. The majority of reactions were described as mild or moderate (grade 1 or 2), although severe (grade 3) events were also reported. Most frequent reactions have included erythema at injection site, induration at injection site, injection-site nodule, pain at injection site, and swelling at infection site.

Mechanism: Injection-site nodules and indurations may be related to SUBQ drug depot.

Adverse Reactions

The following adverse drug reactions and incidences are derived from product labeling unless otherwise specified. Adverse reactions reported in adults.

>10%:

Local: Injection-site reaction (65%; including discomfort at injection site [1%], erythema at injection site [31%], hematoma at injection site [1%], induration at injection site [15%], injection-site nodule [25%], injection-site pruritus [6%], localized edema [1%], pain at injection site [31%], residual mass at injection site [3%], swelling at injection site [36%], ulcer [1%])

Renal: Increased serum creatinine (grades 3/4: 13%)

1% to 10%:

Endocrine & metabolic: Hyperglycemia (grades 3/4: 5%)

Gastrointestinal: Nausea (4%)

Genitourinary: Glycosuria (grade 3: 6%), proteinuria (grade 3: 4%)

Hepatic: Increased direct serum bilirubin (grade 3: 3%), increased serum alanine aminotransferase (grade 3: 3%), increased serum aspartate aminotransferase (grades 3/4: 3%)

Contraindications

Concomitant administration with CYP3A inducers.

Significant drug interactions exist, requiring dose/frequency adjustment or avoidance. Consult drug interactions database for more information.

Canadian labeling: Additional contraindications (not in the US labeling): Hypersensitivity to lenacapavir or any other component of the formulation.

Warnings/Precautions

Concerns related to adverse effects:

• Immune reconstitution syndrome: Patients may develop immune reconstitution syndrome resulting in the occurrence of an inflammatory response to an indolent or residual opportunistic infection during initial HIV treatment or activation of autoimmune disorders (eg, Graves disease, polymyositis, Guillain-Barré syndrome) later in therapy; further evaluation and treatment may be required.

Dosage form specific issues:

• Discontinuation of therapy: Residual concentrations of lenacapavir long-acting injection may remain in the systemic circulation of patients for ≥12 months; consider this if lenacapavir is discontinued. To minimize the potential risk of resistance development, an alternative, fully suppressive antiretroviral regimen should be initiated when possible, no later than 28 weeks after the final lenacapavir injection.

Dosage Forms: US

Excipient information presented when available (limited, particularly for generics); consult specific product labeling.

Solution, Subcutaneous, as sodium:

Sunlenca: 463.5 mg/1.5 mL (1.5 mL) [contains polyethylene glycol 300 (peg-6)]

Tablet Therapy Pack, Oral, as sodium:

Sunlenca: 4 x 300 MG (4 ea); 5 x 300 MG (5 ea)

Generic Equivalent Available: US

No

Pricing: US

Solution (Sunlenca Subcutaneous)

463.5 mg/1.5 mL (per mL): $7,800.00

Tablet Therapy Pack (Sunlenca Oral)

4 x 300 mg (per each): $975.00

5 x 300 mg (per each): $975.00

Disclaimer: A representative AWP (Average Wholesale Price) price or price range is provided as reference price only. A range is provided when more than one manufacturer's AWP price is available and uses the low and high price reported by the manufacturers to determine the range. The pricing data should be used for benchmarking purposes only, and as such should not be used alone to set or adjudicate any prices for reimbursement or purchasing functions or considered to be an exact price for a single product and/or manufacturer. Medi-Span expressly disclaims all warranties of any kind or nature, whether express or implied, and assumes no liability with respect to accuracy of price or price range data published in its solutions. In no event shall Medi-Span be liable for special, indirect, incidental, or consequential damages arising from use of price or price range data. Pricing data is updated monthly.

Dosage Forms: Canada

Excipient information presented when available (limited, particularly for generics); consult specific product labeling.

Solution, Subcutaneous, as sodium:

Sunlenca: 463.5 mg/1.5 mL (1.5 mL) [contains polyethylene glycol 300 (peg-6)]

Administration: Adult

Oral: Administer with or without food.

SUBQ: Two 1.5 mL injections are required for a complete dose. Administer each injection SUBQ at separate sites in abdomen (≥2 inches from the navel).

Use: Labeled Indications

HIV-1 infection, treatment: Treatment of HIV-1 infection, in combination with other antiretrovirals, in heavily treatment-experienced adults with multidrug-resistant HIV-1 infection failing their current antiretroviral regimen due to resistance, intolerance, or safety considerations.

Metabolism/Transport Effects

Substrate of CYP3A4 (major), P-glycoprotein/ABCB1 (minor), UGT1A1; Note: Assignment of Major/Minor substrate status based on clinically relevant drug interaction potential; Inhibits BCRP/ABCG2, CYP3A4 (moderate)

Drug Interactions

Note: Interacting drugs may not be individually listed below if they are part of a group interaction (eg, individual drugs within “CYP3A4 Inducers [Strong]” are NOT listed). For a complete list of drug interactions by individual drug name and detailed management recommendations, use the Lexicomp drug interactions program by clicking on the “Launch drug interactions program” link above.

Abemaciclib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Abemaciclib. Management: Monitor for increased abemaciclib toxicities if combined with moderate CYP3A4 inhibitors. Consider reducing the abemaciclib dose in 50 mg decrements if necessary. Risk C: Monitor therapy

Acalabrutinib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Acalabrutinib. Management: Reduce acalabrutinib dose to 100 mg once daily with concurrent use of a moderate CYP3A4 inhibitor. Monitor patient closely for both acalabrutinib response and evidence of adverse effects with any concurrent use. Risk D: Consider therapy modification

Adagrasib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Adagrasib. Risk C: Monitor therapy

ALfentanil: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of ALfentanil. Management: If use of alfentanil and moderate CYP3A4 inhibitors is necessary, consider dosage reduction of alfentanil until stable drug effects are achieved. Frequently monitor patients for respiratory depression and sedation when these agents are combined. Risk D: Consider therapy modification

Alfuzosin: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Alfuzosin. Risk C: Monitor therapy

Alitretinoin (Systemic): CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Alitretinoin (Systemic). Risk C: Monitor therapy

Alpelisib: BCRP/ABCG2 Inhibitors may increase the serum concentration of Alpelisib. Management: Avoid coadministration of BCRP/ABCG2 inhibitors and alpelisib due to the potential for increased alpelisib concentrations and toxicities. If coadministration cannot be avoided, closely monitor for increased alpelisib adverse reactions. Risk D: Consider therapy modification

ALPRAZolam: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of ALPRAZolam. Management: Consider alternatives to this combination when possible. If combined, consider an alprazolam dose reduction and monitor for increased alprazolam effects and toxicities (eg, sedation, lethargy). Risk D: Consider therapy modification

Amiodarone: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Amiodarone. Risk C: Monitor therapy

AmLODIPine: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of AmLODIPine. Risk C: Monitor therapy

Apixaban: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Apixaban. Risk C: Monitor therapy

Aprepitant: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Aprepitant. Risk X: Avoid combination

ARIPiprazole: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of ARIPiprazole. Management: Monitor for increased aripiprazole pharmacologic effects. Aripiprazole dose adjustments may or may not be required based on concomitant therapy, indication, or dosage form. Consult full interaction monograph for specific recommendations. Risk C: Monitor therapy

ARIPiprazole Lauroxil: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of ARIPiprazole Lauroxil. Risk C: Monitor therapy

Astemizole: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Astemizole. Management: Avoid concomitant use of astemizole and moderate CYP3A4 inhibitors whenever possible. If combined, monitor closely for increased astemizole toxicities, especially for QTc interval prolongation. Risk D: Consider therapy modification

Asunaprevir: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Asunaprevir. Risk X: Avoid combination

Atazanavir: May increase the serum concentration of Lenacapavir. Management: Concomitant use of atazanavir/cobicistat or atazanavir/ritonavir with lenacapavir is not recommended. Use of atazanavir alone may result in increases in lenacapavir concentrations, but concomitant use is allowed. Risk X: Avoid combination

Atogepant: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Atogepant. Risk C: Monitor therapy

Atorvastatin: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Atorvastatin. Risk C: Monitor therapy

Avacopan: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Avacopan. Risk C: Monitor therapy

Avanafil: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Avanafil. Management: The maximum avanafil dose is 50 mg per 24-hour period when used together with a moderate CYP3A4 inhibitor. Patients receiving such a combination should also be monitored more closely for evidence of adverse effects (eg, hypotension, syncope, priapism). Risk D: Consider therapy modification

Avapritinib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Avapritinib. Management: Avoid use of moderate CYP3A4 inhibitors with avapritinib. If this combination cannot be avoided, reduce the avapritinib dose to 100 mg daily for the treatment of GIST or to 50 mg daily for the treatment of advanced systemic mastocytosis. Risk D: Consider therapy modification

Axitinib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Axitinib. Risk C: Monitor therapy

Barnidipine: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Barnidipine. Risk C: Monitor therapy

Bedaquiline: CYP3A4 Inhibitors (Moderate) may increase serum concentrations of the active metabolite(s) of Bedaquiline. CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Bedaquiline. Risk C: Monitor therapy

Benidipine: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Benidipine. Risk C: Monitor therapy

Benzhydrocodone: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Benzhydrocodone. Specifically, the concentration of hydrocodone may be increased. Risk C: Monitor therapy

Berotralstat: BCRP/ABCG2 Inhibitors may increase the serum concentration of Berotralstat. Management: Decrease the berotralstat dose to 110 mg daily when combined with BCRP inhibitors. Risk D: Consider therapy modification

Betibeglogene Autotemcel: Antiretroviral Agents may diminish the therapeutic effect of Betibeglogene Autotemcel. Risk X: Avoid combination

Blonanserin: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Blonanserin. Risk C: Monitor therapy

Bortezomib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Bortezomib. Risk C: Monitor therapy

Bosutinib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Bosutinib. Risk X: Avoid combination

Brexpiprazole: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Brexpiprazole. Management: The brexpiprazole dose should be reduced to 25% of usual if used together with both a moderate CYP3A4 inhibitor and a strong or moderate CYP2D6 inhibitor, or if a moderate CYP3A4 inhibitor is used in a CYP2D6 poor metabolizer. Risk C: Monitor therapy

Brigatinib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Brigatinib. Management: Avoid concurrent use of brigatinib with moderate CYP3A4 inhibitors when possible. If such a combination cannot be avoided, reduce the dose of brigatinib by approximately 40% (ie, from 180 mg to 120 mg, from 120 mg to 90 mg, or from 90 mg to 60 mg). Risk D: Consider therapy modification

Bromocriptine: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Bromocriptine. Management: The bromocriptine dose should not exceed 1.6 mg daily with use of a moderate CYP3A4 inhibitor. The Cycloset brand specifically recommends this dose limitation, but other bromocriptine products do not make such specific recommendations. Risk D: Consider therapy modification

Budesonide (Oral Inhalation): CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Budesonide (Oral Inhalation). Risk C: Monitor therapy

Budesonide (Systemic): CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Budesonide (Systemic). Management: Avoid the concomitant use of CYP3A4 inhibitors and oral budesonide. If patients receive both budesonide and CYP3A4 inhibitors, they should be closely monitored for signs and symptoms of corticosteroid excess. Risk D: Consider therapy modification

Budesonide (Topical): CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Budesonide (Topical). Risk X: Avoid combination

Buprenorphine: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Buprenorphine. Risk C: Monitor therapy

BusPIRone: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of BusPIRone. Risk C: Monitor therapy

Cabozantinib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Cabozantinib. Risk C: Monitor therapy

Cannabis: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Cannabis. More specifically, tetrahydrocannabinol and cannabidiol serum concentrations may be increased. Risk C: Monitor therapy

Cariprazine: CYP3A4 Inhibitors (Moderate) may increase serum concentrations of the active metabolite(s) of Cariprazine. Specifically, concentrations of didesmethylcariprazine (DDCAR), the primary active metabolite of cariprazine, may increase. CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Cariprazine. Risk C: Monitor therapy

Ceritinib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Ceritinib. Risk C: Monitor therapy

Cilostazol: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Cilostazol. Management: Decrease the dose of cilostazol to 50 mg twice daily when combined with moderate CYP3A4 inhibitors. Risk D: Consider therapy modification

Cisapride: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Cisapride. Management: Consider alternatives to this combination. Prescribing information for some moderate CYP3A4 inhibitors state coadministration with cisapride is contraindicated, while some others recommend monitoring and dose titration. Risk D: Consider therapy modification

Cladribine: BCRP/ABCG2 Inhibitors may increase the serum concentration of Cladribine. Management: Avoid concomitant use of BCRP inhibitors during the 4 to 5 day oral cladribine treatment cycles whenever possible. If combined, consider dose reduction of the BCRP inhibitor and separation in the timing of administration. Risk D: Consider therapy modification

Clindamycin (Systemic): CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Clindamycin (Systemic). Risk C: Monitor therapy

CloZAPine: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of CloZAPine. Risk C: Monitor therapy

Cobimetinib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Cobimetinib. Management: Avoid this combination when possible. If concurrent short term (14 days or less) use cannot be avoided, reduce the cobimetinib dose from 60 mg to 20 mg daily. Avoid concomitant use in patients already receiving reduced cobimetinib doses. Risk D: Consider therapy modification

Codeine: CYP3A4 Inhibitors (Moderate) may increase serum concentrations of the active metabolite(s) of Codeine. Risk C: Monitor therapy

Colchicine: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Colchicine. Management: Avoidance, dose reduction, or increased monitoring for colchicine toxicity may be needed and will depend on brand, indication for colchicine use, renal/hepatic function, and use of a P-gp inhibitor. See full monograph for details. Risk D: Consider therapy modification

Conivaptan: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Conivaptan. Risk C: Monitor therapy

Copanlisib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Copanlisib. Risk C: Monitor therapy

Crizotinib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Crizotinib. Risk C: Monitor therapy

CycloSPORINE (Systemic): CYP3A4 Inhibitors (Moderate) may increase the serum concentration of CycloSPORINE (Systemic). Risk C: Monitor therapy

CYP3A4 Inducers (Moderate): May decrease the serum concentration of Lenacapavir. Risk X: Avoid combination

CYP3A4 Inducers (Strong): May decrease the serum concentration of Lenacapavir. Risk X: Avoid combination

Dabigatran Etexilate: Lenacapavir may increase the serum concentration of Dabigatran Etexilate. Risk C: Monitor therapy

Dapoxetine: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Dapoxetine. Management: The dose of dapoxetine should be limited to 30 mg per day when used together with a moderate inhibitor of CYP3A4. Risk D: Consider therapy modification

Daridorexant: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Daridorexant. Management: Limit the daridorexant dose to 25 mg, no more than once per night, when combined with moderate CYP3A4 inhibitors. Risk D: Consider therapy modification

Darifenacin: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Darifenacin. Risk C: Monitor therapy

Dasatinib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Dasatinib. Risk C: Monitor therapy

Deflazacort: CYP3A4 Inhibitors (Moderate) may increase serum concentrations of the active metabolite(s) of Deflazacort. Management: Administer one third of the recommended deflazacort dose when used together with a strong or moderate CYP3A4 inhibitor. Risk D: Consider therapy modification

Delamanid: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Delamanid. Risk C: Monitor therapy

DexAMETHasone (Systemic): CYP3A4 Inhibitors (Moderate) may increase the serum concentration of DexAMETHasone (Systemic). Risk C: Monitor therapy

DiazePAM: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of DiazePAM. Risk C: Monitor therapy

Dienogest: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Dienogest. Risk C: Monitor therapy

Digoxin: Lenacapavir may increase the serum concentration of Digoxin. Risk C: Monitor therapy

DilTIAZem: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of DilTIAZem. Risk C: Monitor therapy

Disopyramide: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Disopyramide. Risk C: Monitor therapy

DOCEtaxel: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of DOCEtaxel. Risk C: Monitor therapy

Dofetilide: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Dofetilide. Risk C: Monitor therapy

Domperidone: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Domperidone. Risk X: Avoid combination

DOXOrubicin (Conventional): CYP3A4 Inhibitors (Moderate) may increase the serum concentration of DOXOrubicin (Conventional). Risk X: Avoid combination

DroNABinol: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of DroNABinol. Risk C: Monitor therapy

Dronedarone: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Dronedarone. Risk C: Monitor therapy

Ebastine: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Ebastine. Risk C: Monitor therapy

Edoxaban: Lenacapavir may increase the serum concentration of Edoxaban. Risk C: Monitor therapy

Elacestrant: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Elacestrant. Risk X: Avoid combination

Elbasvir and Grazoprevir: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Elbasvir and Grazoprevir. Risk C: Monitor therapy

Eletriptan: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Eletriptan. Risk X: Avoid combination

Elexacaftor, Tezacaftor, and Ivacaftor: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Elexacaftor, Tezacaftor, and Ivacaftor. Management: When combined with moderate CYP3A4 inhibitors, elexacaftor/tezacaftor/ivacaftor should be given in the morning, every other day. Ivacaftor alone should be given in the morning, every other day on alternate days. Risk D: Consider therapy modification

Eliglustat: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Eliglustat. Management: Reduce eliglustat dose to 84 mg daily in CYP2D6 EMs when used with moderate CYP3A4 inhibitors. Avoid use of moderate CYP3A4 inhibitors in CYP2D6 IMs or PMs. Use in CYP2D6 EMs or IMs also taking strong or moderate CYP2D6 inhibitors is contraindicated. Risk D: Consider therapy modification

Elivaldogene Autotemcel: Antiretroviral Agents may diminish the therapeutic effect of Elivaldogene Autotemcel. Management: Avoid use of antiretroviral medications for at least one month, or for the amount of time required for elimination of the retroviral medication, prior to stem cell mobilization and until the all apheresis cycles are finished Risk X: Avoid combination

Encorafenib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Encorafenib. Management: Avoid use of encorafenib and moderate CYP3A4 inhibitors when possible. If combined, decrease the encorafenib dose from 450 mg to 225 mg; 300 mg to 150 mg; and 225 mg or 150 mg to 75 mg. Resume prior dose once inhibitor discontinued for 3 to 5 half-lives. Risk D: Consider therapy modification

Entrectinib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Entrectinib. Management: Avoid moderate CYP3A4 inhibitors during treatment with entrectinib. Reduce dose to 200 mg/day if combination cannot be avoided in adults and those 12 yrs of age or older with a BSA of at least 1.5 square meters. Avoid if BSA is less than 1.5 square meters Risk D: Consider therapy modification

Eplerenone: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Eplerenone. Management: If coadministered with moderate CYP3A4 inhibitors, the max dose of eplerenone is 25 mg daily if used for heart failure; if used for hypertension initiate eplerenone 25 mg daily, titrate to max 25 mg twice daily. Risk D: Consider therapy modification

Ergot Derivatives (Vasoconstrictive CYP3A4 Substrates): Lenacapavir may increase the serum concentration of Ergot Derivatives (Vasoconstrictive CYP3A4 Substrates). Risk X: Avoid combination

Erlotinib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Erlotinib. Risk C: Monitor therapy

Erythromycin (Systemic): CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Erythromycin (Systemic). Risk C: Monitor therapy

Eszopiclone: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Eszopiclone. Risk C: Monitor therapy

Everolimus: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Everolimus. Risk C: Monitor therapy

Fedratinib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Fedratinib. Risk C: Monitor therapy

Felodipine: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Felodipine. Risk C: Monitor therapy

FentaNYL: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of FentaNYL. Management: Consider fentanyl dose reductions when combined with a moderate CYP3A4 inhibitor. Monitor for respiratory depression and sedation. Upon discontinuation of a CYP3A4 inhibitor, consider a fentanyl dose increase; monitor for signs and symptoms of withdrawal. Risk D: Consider therapy modification

Fexinidazole: CYP3A4 Inhibitors (Moderate) may decrease serum concentrations of the active metabolite(s) of Fexinidazole. Management: Avoid use of fexinidazole and moderate CYP3A4 inhibitors when possible. If combined, monitor for reduced fexinidazole efficacy. Risk D: Consider therapy modification

Finerenone: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Finerenone. Risk C: Monitor therapy

Flibanserin: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Flibanserin. Management: Use of flibanserin with moderate CYP3A4 inhibitors is contraindicated. If starting flibanserin, start 2 weeks after the last dose of the CYP3A4 inhibitor. If starting a CYP3A4 inhibitor, start 2 days after the last dose of flibanserin. Risk X: Avoid combination

Fluticasone (Nasal): CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Fluticasone (Nasal). Risk C: Monitor therapy

Fluticasone (Oral Inhalation): CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Fluticasone (Oral Inhalation). Risk C: Monitor therapy

Fosamprenavir: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Fosamprenavir. Risk C: Monitor therapy

Fosaprepitant: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Fosaprepitant. Risk X: Avoid combination

Gilteritinib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Gilteritinib. Risk C: Monitor therapy

Glasdegib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Glasdegib. Risk C: Monitor therapy

GuanFACINE: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of GuanFACINE. Management: Reduce the extended-release guanfacine dose 50% when combined with a moderate CYP3A4 inhibitor. Monitor for increased guanfacine toxicities when these agents are combined. Risk D: Consider therapy modification

Halofantrine: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Halofantrine. Risk C: Monitor therapy

HYDROcodone: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of HYDROcodone. Risk C: Monitor therapy

Ibrutinib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Ibrutinib. Management: When treating B-cell malignancies, decrease ibrutinib to 280 mg daily when combined with moderate CYP3A4 inhibitors. When treating graft versus host disease, monitor patients closely and reduce the ibrutinib dose as needed based on adverse reactions. Risk D: Consider therapy modification

Ifosfamide: CYP3A4 Inhibitors (Moderate) may decrease serum concentrations of the active metabolite(s) of Ifosfamide. Risk C: Monitor therapy

Iloperidone: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Iloperidone. Risk C: Monitor therapy

Infigratinib: CYP3A4 Inhibitors (Moderate) may decrease serum concentrations of the active metabolite(s) of Infigratinib. CYP3A4 Inhibitors (Moderate) may increase serum concentrations of the active metabolite(s) of Infigratinib. CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Infigratinib. Risk X: Avoid combination

Irinotecan Products: CYP3A4 Inhibitors (Moderate) may increase serum concentrations of the active metabolite(s) of Irinotecan Products. Specifically, the serum concentration of SN-38 may be increased. CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Irinotecan Products. Risk C: Monitor therapy

Isavuconazonium Sulfate: CYP3A4 Inhibitors (Moderate) may increase serum concentrations of the active metabolite(s) of Isavuconazonium Sulfate. Specifically, CYP3A4 Inhibitors (Moderate) may increase isavuconazole serum concentrations. Risk C: Monitor therapy

Isradipine: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Isradipine. Risk C: Monitor therapy

Itraconazole: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Itraconazole. Risk C: Monitor therapy

Ivabradine: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Ivabradine. Risk X: Avoid combination

Ivacaftor: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Ivacaftor. Management: Ivacaftor dose reductions may be required; consult full drug interaction monograph content for age- and weight-specific dosage recommendations. Risk D: Consider therapy modification

Ivosidenib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Ivosidenib. Management: Avoid use of moderate CYP3A4 inhibitors with ivosidenib whenever possible. If combined, monitor for increased ivosidenib toxicities, including QTc prolongation. Risk D: Consider therapy modification

Ixabepilone: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Ixabepilone. Risk C: Monitor therapy

Lapatinib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Lapatinib. Risk C: Monitor therapy

Larotrectinib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Larotrectinib. Risk C: Monitor therapy

Lefamulin: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Lefamulin. Management: Monitor for lefamulin adverse effects during coadministration of lefamulin tablets with moderate CYP3A4 inhibitors. Risk C: Monitor therapy

Lemborexant: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Lemborexant. Risk X: Avoid combination

Leniolisib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Leniolisib. Risk C: Monitor therapy

Lercanidipine: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Lercanidipine. Risk C: Monitor therapy

Levamlodipine: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Levamlodipine. Risk C: Monitor therapy

Levoketoconazole: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Levoketoconazole. Risk C: Monitor therapy

Levomethadone: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Levomethadone. Risk C: Monitor therapy

Levomilnacipran: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Levomilnacipran. Risk C: Monitor therapy

Lidocaine (Systemic): CYP3A4 Inhibitors (Moderate) may increase serum concentrations of the active metabolite(s) of Lidocaine (Systemic). Specifically, concentrations of monoethylglycinexylidide (MEGX) may be increased. CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Lidocaine (Systemic). Risk C: Monitor therapy

Lomitapide: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Lomitapide. Risk X: Avoid combination

Lonafarnib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Lonafarnib. Risk X: Avoid combination

Lopinavir: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Lopinavir. Risk C: Monitor therapy

Lovastatin: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Lovastatin. Risk C: Monitor therapy

Lumateperone: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Lumateperone. Management: Limit the lumateperone dose to 21 mg once daily when used with a moderate CYP3A4 inhibitor. Risk D: Consider therapy modification

Lurasidone: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Lurasidone. Management: US labeling recommends reducing lurasidone dose by 50% with a moderate CYP3A4 inhibitor and initiating 20 mg/day, max 80 mg/day. Some non-US labels recommend initiating lurasidone 20 mg/day, max 40 mg/day. Avoid concurrent use of grapefruit products. Risk D: Consider therapy modification

Lurbinectedin: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Lurbinectedin. Management: Avoid concomitant use of lurbinectedin and moderate CYP3A4 inhibitors when possible. If combined, consider a lurbinectedin dose reduction as clinically indicated. Risk D: Consider therapy modification

Macitentan: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Macitentan. Risk C: Monitor therapy

Manidipine: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Manidipine. Risk C: Monitor therapy

Maraviroc: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Maraviroc. Risk C: Monitor therapy

Mavacamten: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Mavacamten. Management: Start mavacamten at 5 mg/day if stable on a moderate CYP3A4 inhibitor. For those stable on mavacamten who are initiating a moderate CYP3A4 inhibitor, reduce mavacamten dose by one dose level. Risk D: Consider therapy modification

Meperidine: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Meperidine. Risk C: Monitor therapy

Methadone: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Methadone. Management: If coadministration with moderate CYP3A4 inhibitors is necessary, consider methadone dose reductions until stable effects are achieved. Monitor patients closely for respiratory depression and sedation. Risk D: Consider therapy modification

MethylPREDNISolone: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of MethylPREDNISolone. Risk C: Monitor therapy

Methysergide: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Methysergide. Risk X: Avoid combination

Midazolam: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Midazolam. Management: Avoid concomitant use of nasal midazolam and moderate CYP3A4 inhibitors. Consider alternatives to use with oral midazolam whenever possible and consider using lower midazolam doses. Monitor patients for sedation and respiratory depression if combined. Risk D: Consider therapy modification

Midostaurin: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Midostaurin. Risk C: Monitor therapy

MiFEPRIStone: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of MiFEPRIStone. Risk C: Monitor therapy

Mirodenafil: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Mirodenafil. Risk C: Monitor therapy

Mobocertinib: CYP3A4 Inhibitors (Moderate) may increase serum concentrations of the active metabolite(s) of Mobocertinib. CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Mobocertinib. Management: Avoid use of moderate CYP3A4 inhibitors with mobocertinib when possible. If combined, the mobocertinib dose should be reduced by approximately 50% (ie, from 160 mg to 80 mg, 120 mg to 40 mg, or 80 mg to 40 mg). Monitor QTc interval closely. Risk D: Consider therapy modification

Naldemedine: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Naldemedine. Risk C: Monitor therapy

Nalfurafine: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Nalfurafine. Risk C: Monitor therapy

Naloxegol: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Naloxegol. Management: The use of naloxegol and moderate CYP3A4 inhibitors should be avoided. If concurrent use is unavoidable, reduce naloxegol dose to 12.5 mg once daily and monitor for signs of opiate withdrawal (eg, hyperhidrosis, chills, diarrhea, anxiety, irritability). Risk D: Consider therapy modification

Neratinib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Neratinib. Risk C: Monitor therapy

Nevirapine: May decrease the serum concentration of Lenacapavir. Risk X: Avoid combination

NIFEdipine: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of NIFEdipine. Risk C: Monitor therapy

Nilotinib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Nilotinib. Risk C: Monitor therapy

NiMODipine: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of NiMODipine. Risk C: Monitor therapy

Nisoldipine: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Nisoldipine. Risk X: Avoid combination

Nitrendipine: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Nitrendipine. Risk C: Monitor therapy

Olaparib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Olaparib. Management: Avoid use of moderate CYP3A4 inhibitors with olaparib, if possible. If such concurrent use cannot be avoided, the dose of olaparib tablets should be reduced to 150 mg twice daily and the dose of olaparib capsules should be reduced to 200 mg twice daily. Risk D: Consider therapy modification

Oliceridine: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Oliceridine. Risk C: Monitor therapy

Olmutinib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Olmutinib. Risk C: Monitor therapy

Omaveloxolone: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Omaveloxolone. Management: Avoid this combination if possible. If coadministration is required, decrease the omaveloxolone dose to 100 mg daily and monitor closely for adverse reactions. If adverse reactions occur, decrease omaveloxolone to 50 mg daily. Risk D: Consider therapy modification

Ombitasvir, Paritaprevir, and Ritonavir: May increase the serum concentration of Lenacapavir. Risk X: Avoid combination

Orelabrutinib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Orelabrutinib. Risk X: Avoid combination

Orlistat: May decrease the serum concentration of Antiretroviral Agents. Risk C: Monitor therapy

OXcarbazepine: May decrease the serum concentration of Lenacapavir. Risk X: Avoid combination

OxyCODONE: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of OxyCODONE. Serum concentrations of the active metabolite Oxymorphone may also be increased. Risk C: Monitor therapy

PACLitaxel (Conventional): CYP3A4 Inhibitors (Moderate) may increase the serum concentration of PACLitaxel (Conventional). Risk C: Monitor therapy

PACLitaxel (Protein Bound): CYP3A4 Inhibitors (Moderate) may increase the serum concentration of PACLitaxel (Protein Bound). Risk C: Monitor therapy

Pacritinib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Pacritinib. Risk X: Avoid combination

Palbociclib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Palbociclib. Risk C: Monitor therapy

Palovarotene: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Palovarotene. Management: Avoid concomitant use of palovarotene and moderate CYP3A4 inhibitors when possible. If combined, decrease palovarotene dose by 50% as described in the full interaction monograph. Monitor for palovarotene toxicities when combined. Risk D: Consider therapy modification

Panobinostat: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Panobinostat. Risk C: Monitor therapy

PAZOPanib: BCRP/ABCG2 Inhibitors may increase the serum concentration of PAZOPanib. Risk X: Avoid combination

Pemigatinib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Pemigatinib. Management: If combined use cannot be avoided, reduce the pemigatinib dose from 13.5 mg daily to 9 mg daily, or from 9 mg daily to 4.5 mg daily. Resume prior pemigatinib dose after stopping the moderate inhibitor once 3 half-lives of the inhibitor has passed. Risk D: Consider therapy modification

Pimavanserin: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Pimavanserin. Risk C: Monitor therapy

Pimecrolimus: CYP3A4 Inhibitors (Moderate) may decrease the metabolism of Pimecrolimus. Risk C: Monitor therapy

Pimozide: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Pimozide. Risk X: Avoid combination

Piperaquine: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Piperaquine. Risk C: Monitor therapy

Pirtobrutinib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Pirtobrutinib. Risk C: Monitor therapy

PONATinib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of PONATinib. Risk C: Monitor therapy

Pralsetinib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Pralsetinib. Management: If this combo cannot be avoided, decrease pralsetinib dose from 400 mg daily to 300 mg daily; from 300 mg daily to 200 mg daily; and from 200 mg daily to 100 mg daily. Risk D: Consider therapy modification

Prazepam: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Prazepam. Risk C: Monitor therapy

Praziquantel: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Praziquantel. Risk C: Monitor therapy

QUEtiapine: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of QUEtiapine. Risk C: Monitor therapy

QuiNIDine: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of QuiNIDine. Risk C: Monitor therapy

Quinidine (Non-Therapeutic): CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Quinidine (Non-Therapeutic). Risk C: Monitor therapy

QuiNINE: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of QuiNINE. Risk C: Monitor therapy

Ranolazine: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Ranolazine. Management: Limit the ranolazine dose to a maximum of 500 mg twice daily in patients concurrently receiving moderate CYP3A4 inhibitors. Monitor for increased ranolazine effects and toxicities during concomitant use. Risk D: Consider therapy modification

Red Yeast Rice: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Red Yeast Rice. Risk C: Monitor therapy

Regorafenib: CYP3A4 Inhibitors (Moderate) may decrease serum concentrations of the active metabolite(s) of Regorafenib. CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Regorafenib. Risk C: Monitor therapy

Ribociclib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Ribociclib. Risk C: Monitor therapy

Rimegepant: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Rimegepant. Management: If taking rimegepant for the acute treatment of migraine, avoid a second dose of rimegepant within 48 hours when used concomitantly with moderate CYP3A4 inhibitors. No dose adjustment needed if using rimegepant for prevention of episodic migraine. Risk D: Consider therapy modification

Ritonavir: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Ritonavir. Risk C: Monitor therapy

Rivaroxaban: Lenacapavir may increase the serum concentration of Rivaroxaban. Management: No action is needed in patients with normal renal function. Do not use this combination in patients with estimated creatinine clearance 15 to 80 mL/min unless prospective benefits outweigh the risks. Risk D: Consider therapy modification

Roflumilast-Containing Products: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Roflumilast-Containing Products. Risk C: Monitor therapy

Rosuvastatin: BCRP/ABCG2 Inhibitors may increase the serum concentration of Rosuvastatin. Risk C: Monitor therapy

Rupatadine: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Rupatadine. Risk C: Monitor therapy

Ruxolitinib (Systemic): CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Ruxolitinib (Systemic). Risk C: Monitor therapy

Salmeterol: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Salmeterol. Risk C: Monitor therapy

Saquinavir: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Saquinavir. Risk C: Monitor therapy

SAXagliptin: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of SAXagliptin. Risk C: Monitor therapy

Selpercatinib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Selpercatinib. Management: Avoid combination if possible. If use is necessary, reduce selpercatinib dose as follows: from 120 mg twice/day to 80 mg twice/day, or from 160 mg twice/day to 120 mg twice/day. Risk D: Consider therapy modification

Selumetinib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Selumetinib. Management: Avoid concomitant use when possible. If combined, selumetinib dose reductions are recommended and vary based on body surface area and selumetinib dose. For details, see the full drug interaction monograph or selumetinib prescribing information. Risk D: Consider therapy modification

Sertindole: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Sertindole. Risk X: Avoid combination

Sildenafil: Lenacapavir may increase the serum concentration of Sildenafil. Management: For pulmonary arterial hypertension, no dose adjustment required. For erectile dysfunction, use a lower starting dose of 25 mg in patients who are also taking lenacapavir. Monitor patients for sildenafil toxicities when combined. Risk D: Consider therapy modification

Silodosin: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Silodosin. Risk C: Monitor therapy

Simeprevir: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Simeprevir. Risk X: Avoid combination

Simvastatin: CYP3A4 Inhibitors (Moderate) may increase serum concentrations of the active metabolite(s) of Simvastatin. CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Simvastatin. Risk C: Monitor therapy

Sirolimus (Conventional): CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Sirolimus (Conventional). Management: Monitor for increased serum concentrations of sirolimus if combined with a moderate CYP3A4 inhibitor. Lower initial sirolimus doses or sirolimus dose reductions will likely be required. Risk D: Consider therapy modification

Sirolimus (Protein Bound): CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Sirolimus (Protein Bound). Management: Reduce the dose of protein bound sirolimus to 56 mg/m2 when used concomitantly with a moderate CYP3A4 inhibitor. Risk D: Consider therapy modification

Solifenacin: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Solifenacin. Risk C: Monitor therapy

Sonidegib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Sonidegib. Management: Avoid concomitant use of sonidegib and moderate CYP3A4 inhibitors when possible. When concomitant use cannot be avoided, limit CYP3A4 inhibitor use to less than 14 days and monitor for sonidegib toxicity (particularly musculoskeletal adverse reactions). Risk D: Consider therapy modification

Sparsentan: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Sparsentan. Risk C: Monitor therapy

St John's Wort: May decrease the serum concentration of Lenacapavir. Risk X: Avoid combination

SUNItinib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of SUNItinib. Risk C: Monitor therapy

Suvorexant: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Suvorexant. Management: The recommended dose of suvorexant is 5 mg daily in patients receiving a moderate CYP3A4 inhibitor. The dose can be increased to 10 mg daily (maximum dose) if necessary for efficacy. Risk D: Consider therapy modification

Tacrolimus (Systemic): CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Tacrolimus (Systemic). Risk C: Monitor therapy

Tacrolimus (Topical): CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Tacrolimus (Topical). Risk C: Monitor therapy

Tadalafil: Lenacapavir may increase the serum concentration of Tadalafil. Management: Avoid this combination in patients taking tadalafil for pulmonary arterial hypertension. In patients taking tadalafil for ED or BPH monitor for increased tadalafil effects and toxicities. Risk D: Consider therapy modification

Talazoparib: BCRP/ABCG2 Inhibitors may increase the serum concentration of Talazoparib. Risk C: Monitor therapy

Tamsulosin: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Tamsulosin. Risk C: Monitor therapy

Tazemetostat: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Tazemetostat. Management: Avoid when possible. If combined, reduce tazemetostat dose from 800 mg twice daily to 400 mg twice daily, from 600 mg twice daily to 400 mg in AM and 200 mg in PM, or from 400 mg twice daily to 200 mg twice daily. Risk D: Consider therapy modification

Temsirolimus: CYP3A4 Inhibitors (Moderate) may increase serum concentrations of the active metabolite(s) of Temsirolimus. Specifically, concentrations of sirolimus may be increased. Risk C: Monitor therapy

Terfenadine: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Terfenadine. Risk C: Monitor therapy

Tetrahydrocannabinol: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Tetrahydrocannabinol. Risk C: Monitor therapy

Tetrahydrocannabinol and Cannabidiol: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Tetrahydrocannabinol and Cannabidiol. Risk C: Monitor therapy

Tezacaftor and Ivacaftor: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Tezacaftor and Ivacaftor. Management: If combined with moderate CYP3A4 inhibitors, give tezacaftor/ivacaftor in the morning, every other day; give ivacaftor in the morning, every other day on alternate days. Tezacaftor/ivacaftor dose depends on age and weight; see full Lexi-Interact monograph Risk D: Consider therapy modification

Thiotepa: CYP3A4 Inhibitors (Moderate) may decrease serum concentrations of the active metabolite(s) of Thiotepa. CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Thiotepa. Risk C: Monitor therapy

Ticagrelor: CYP3A4 Inhibitors (Moderate) may decrease serum concentrations of the active metabolite(s) of Ticagrelor. CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Ticagrelor. Risk C: Monitor therapy

Tipranavir: May decrease the serum concentration of Lenacapavir. Risk X: Avoid combination

Tofacitinib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Tofacitinib. Risk C: Monitor therapy

Tolterodine: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Tolterodine. Risk C: Monitor therapy

Tolvaptan: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Tolvaptan. Management: Avoid this combination with Samsca brand of tolvaptan. Reduce dose for Jynarque brand: 90 mg AM and 30 mg PM, reduce to 45 mg AM and 15 mg PM; 60 mg AM and 30 mg PM, reduce to 30 mg AM and 15 mg PM; 45 mg AM and 15 mg PM, reduce to 15 mg AM and PM. Risk D: Consider therapy modification

Topotecan: BCRP/ABCG2 Inhibitors may increase the serum concentration of Topotecan. Risk X: Avoid combination

Toremifene: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Toremifene. Risk C: Monitor therapy

Trabectedin: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Trabectedin. Risk C: Monitor therapy

TraMADol: CYP3A4 Inhibitors (Moderate) may increase serum concentrations of the active metabolite(s) of TraMADol. CYP3A4 Inhibitors (Moderate) may increase the serum concentration of TraMADol. Risk C: Monitor therapy

TraZODone: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of TraZODone. Risk C: Monitor therapy

Triazolam: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Triazolam. Management: Consider triazolam dose reduction in patients receiving concomitant moderate CYP3A4 inhibitors. Risk D: Consider therapy modification

Ubrogepant: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Ubrogepant. Management: Use an initial ubrogepant dose of 50 mg and avoid a second dose for 24 hours when used with moderate CYP3A4 inhibitors. Risk D: Consider therapy modification

Ubrogepant: BCRP/ABCG2 Inhibitors may increase the serum concentration of Ubrogepant. Management: Use an initial ubrogepant dose of 50 mg and second dose (at least 2 hours later if needed) of 50 mg when used with a BCRP inhibitor. Risk D: Consider therapy modification

Udenafil: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Udenafil. Risk C: Monitor therapy

Ulipristal: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Ulipristal. Risk C: Monitor therapy

Valbenazine: CYP3A4 Inhibitors (Moderate) may increase serum concentrations of the active metabolite(s) of Valbenazine. CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Valbenazine. Risk C: Monitor therapy

Vardenafil: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Vardenafil. Management: Limit Levitra (vardenafil) dose to a single 5 mg dose within a 24-hour period if combined with moderate CYP3A4 inhibitors. Avoid concomitant use of Staxyn (vardenafil) and moderate CYP3A4 inhibitors. Combined use is contraindicated outside of the US. Risk D: Consider therapy modification

Vemurafenib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Vemurafenib. Risk C: Monitor therapy

Venetoclax: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Venetoclax. Management: Reduce the venetoclax dose by at least 50% in patients requiring concomitant treatment with moderate CYP3A4 inhibitors. Resume the previous venetoclax dose 2 to 3 days after discontinuation of moderate CYP3A4 inhibitors. Risk D: Consider therapy modification

Verapamil: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Verapamil. Risk C: Monitor therapy

Vilazodone: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Vilazodone. Risk C: Monitor therapy

VinBLAStine: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of VinBLAStine. Risk C: Monitor therapy

VinCRIStine: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of VinCRIStine. Risk C: Monitor therapy

VinCRIStine (Liposomal): CYP3A4 Inhibitors (Moderate) may increase the serum concentration of VinCRIStine (Liposomal). Risk C: Monitor therapy

Vindesine: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Vindesine. Risk C: Monitor therapy

Vinflunine: CYP3A4 Inhibitors (Moderate) may increase serum concentrations of the active metabolite(s) of Vinflunine. CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Vinflunine. Risk C: Monitor therapy

Voclosporin: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Voclosporin. Management: Decrease the voclosporin dose to 15.8 mg in the morning and 7.9 mg in the evening when combined with moderate CYP3A4 inhibitors. Risk D: Consider therapy modification

Vorapaxar: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Vorapaxar. Risk C: Monitor therapy

Zanubrutinib: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Zanubrutinib. Management: Decrease the zanubrutinib dose to 80 mg twice daily during coadministration with a moderate CYP3A4 inhibitor. Further dose adjustments may be required for zanubrutinib toxicities, refer to prescribing information for details. Risk D: Consider therapy modification

Zopiclone: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Zopiclone. Risk C: Monitor therapy

Zuranolone: CYP3A4 Inhibitors (Moderate) may increase the serum concentration of Zuranolone. Risk C: Monitor therapy

Reproductive Considerations

Based on the Health and Humans Services (HHS) perinatal HIV guidelines, lenacapavir is not one of the recommended antiretroviral agents for use in patients with HIV infection who are trying to conceive.

Viral suppression sustained below the limits of detection with antiretroviral therapy (ART) and modification of therapy (if needed) is recommended in all patients with HIV infection who are planning a pregnancy. Optimization of the health of the person who will become pregnant and a discussion of the potential risks and benefits of ART during pregnancy is also recommended prior to conception. In most cases, recommendations from the HHS perinatal HIV guidelines (based on data obtained from cisgender women) can be applied to transgender and gender diverse people assigned female sex at birth.

Health care providers caring for couples planning a pregnancy when one or both partners are diagnosed with HIV infection may contact the National Perinatal HIV Hotline (1-888-448-8765) for clinical consultation (HHS [perinatal] 2021).

Pregnancy Considerations

Based on the Health and Humans Services (HHS) perinatal HIV guidelines, lenacapavir is not one of the recommended antiretroviral agents for use in pregnant patients with HIV infection.

Antiretroviral therapy (ART) is recommended for all pregnant people with HIV infection to maximize their health, maintain the viral load below the limit of detection, and reduce the risk of perinatal transmission. Therapy should be individualized following a discussion of the potential risks and benefits of treatment during pregnancy. Patients on fully suppressive regimens prior to pregnancy generally may continue the same regimen considering known pregnancy outcomes and pharmacokinetic data. Monitoring of patients who are pregnant is more frequent than in patients who are not pregnant. ART initiated during pregnancy can be modified after delivery. In most cases, recommendations from the HHS perinatal HIV guidelines (based on data obtained from cisgender women) can be applied to transgender and gender diverse people assigned female sex at birth.

Data collection to monitor pregnancy and infant outcomes following exposure to ART is ongoing. Health care providers are encouraged to enroll patients who are pregnant exposed to antiretroviral medications as early in pregnancy as possible in the Antiretroviral Pregnancy Registry (1-800-258-4263 or http://www.APRegistry.com).

Health care providers caring for pregnant patients with HIV infection and their infants may contact the National Perinatal HIV Hotline (1-888-448-8765) for clinical consultation (HHS [perinatal] 2021).

Breastfeeding Considerations

It is not known if lenacapavir is present in breast milk.

Breastfeeding is not recommended by the manufacturer. Maternal or infant antiretroviral therapy does not completely eliminate the risk of postnatal HIV transmission. In addition, multiclass-resistant virus has been detected in breastfeeding infants despite maternal therapy. In the United States, where formula is usually accessible, affordable, safe, and sustainable, and the risk of infant mortality due to diarrhea and respiratory infections is low, the Health and Human Services (HHS) perinatal HIV guidelines do not recommend breastfeeding for patients with HIV infection when safer infant feeding options are available.

Information is available for counseling and managing patients with HIV infection who are considering breastfeeding (1-888-448-8765). In most cases, recommendations from the HHS perinatal HIV guidelines (based on data obtained from cisgender women) can be applied to transgender and gender diverse people assigned female sex at birth (HHS [perinatal] 2021).

Monitoring Parameters

Signs/symptoms of injection-site reactions.

Mechanism of Action

Lenacapavir is an HIV-1 capsid inhibitor; it directly binds to the interface between capsid protein (p24) subunits in hexamers. Lenacapavir inhibits HIV-1 replication in multiple steps of the viral life cycle, including capsid-mediated nuclear uptake of HIV-1 proviral DNA by blocking nuclear import proteins binding to capsid; virus assembly and release by interfering with Gag/Gag-Pol functioning, which reduces production of capsid protein subunits; and capsid core formation by disrupting the rate of capsid subunit association, leading to malformed capsids.

Pharmacokinetics (Adult Data Unless Noted)

Distribution: Vd/F: Oral: 19,240 L; SUBQ: 9,500 to 11,700 L.

Protein binding: >98.5%.

Metabolism: Oxidation, N-dealkylation, hydrogenation, amide hydrolysis, glucuronidation, hexose conjugation, pentose conjugation, and glutathione conjugation; primarily via CYP3A (minor) and UGT1A1 (minor).

Bioavailability: Oral: 6% to 10%; SUBQ: 100%.

Half-life elimination: Oral: 10 to 12 days; SUBQ: 8 to 12 weeks.

Time to peak: Oral: 4 hours; SUBQ: 77 to 84 days.

Excretion: Urine: <1%; Feces: 76% (33% unchanged).

  1. Sunlenca (lenacapavir) [prescribing information]. Foster City, CA: Gilead Sciences Inc; December 2022.
  2. Sunlenca (lenacapavir) [product monograph]. Mississauga, Ontario, Canada: Gilead Sciences Canada Inc; November 2022.
  3. US Department of Health and Human Services (HHS) Panel on Treatment of HIV During Pregnancy and Prevention of Perinatal Transmission. Recommendations for the use of antiretroviral drugs during pregnancy and interventions to reduce perinatal HIV transmission in the United States. https://clinicalinfo.hiv.gov/en/guidelines/perinatal/whats-new-guidelines. Updated December 30, 2021. Accessed January 3, 2022.
Topic 140392 Version 29.0

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