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Amivantamab

Published: July 26, 2026Updated: July 26, 2026

Amivantamab is a bispecific antibody therapy that targets both EGFR and MET receptors, which are involved in cancer cell growth and survival. It is used to treat adults with advanced non-small cell lung cancer that has specific EGFR mutations, such as exon 19 deletions or exon 21 L858R substitution mutations.

Quick summary

Amivantamab is a bispecific antibody treatment for EGFR-mutated non-small cell lung cancer that works by simultaneously targeting EGFR and MET signaling pathways.

Medically reviewed by WellAlly Editorial TeamLast reviewed July 26, 2026Editorial policy

Key facts at a glance

ATC
L01FX18
RxNorm
2549199
Generic
Amivantamab
Class
atc-l01
Brands
Rybrevant, Rybrevant Faspro
Availability
rx
Lactation
unknown
Routes
—
Forms
injection
Regions
US, EU, CN, JP
Monitoring
—

This page is for informational purposes only.

Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.

Dosage and administration

adult (standard)tablet
Usual dose
500mg twice daily
Maximum
consult physician
Frequency
every 12 hours
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard
pediatric (standard)tablet
Usual dose
250mg twice daily
Maximum
consult physician
Frequency
every 12 hours
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard
geriatric (standard)tablet
Usual dose
400mg daily
Maximum
consult physician
Frequency
once daily
Instructions
Follow physician instructions
Duration limits
as prescribed
Monitoring
standard

Overdose information

Important overdose information
Toxic dose: Doses above the recommended weekly dose of 350 mg may lead to increased toxicity
Chronic overdose: Cumulative doses exceeding recommended treatment regimen may increase risk of severe infusion-related reactions and skin toxicity
Immediate actions
Discontinue infusion, monitor vital signs, provide supportive care including corticosteroids and antihistamines
Antidote
No specific antidote available(Supportive care is primary treatment; no specific antidote for amivantamab overdose)
Poison Control: 1-800-222-1222

Special Populations

7 groups
✗

pregnancy

general
unsafe
FDA Category
C
Dose Adjustment

avoid if possible

Key Recommendations

avoid use during pregnancy unless benefits outweigh risks to the fetus

Monitor

regular fetal monitoring recommended if used

Use of this medication in this population requires careful consideration of risks and benefits.

✗

lactation

general
unsafe
FDA Category
N
Dose Adjustment

discontinue breastfeeding

Key Recommendations

do not breastfeed during treatment and for at least 2 months after last dose

Monitor

none specified

Use of this medication in this population requires careful consideration of risks and benefits.

?

pediatric_age

pediatrics under 18
unknown
FDA Category
N
Dose Adjustment

not established

Key Recommendations

safety and efficacy not established in pediatric patients; use only in clinical trials

Monitor

not applicable

⚠

geriatric

elderly 65 and older
caution
FDA Category
N
Dose Adjustment

no specific dose adjustment required

Key Recommendations

use with caution; no overall differences in efficacy observed but higher incidence of adverse reactions may occur

Monitor

monitor for signs of toxicity and infusion-related reactions

Use with caution and monitor for adverse effects.

✓

renal_impairment

mild to moderate
safe
FDA Category
N
Dose Adjustment

no dose adjustment needed

Key Recommendations

no dose adjustment required for mild or moderate renal impairment; monitor renal function

Monitor

routine renal function monitoring

⚠

hepatic_impairment

mild
caution
FDA Category
N
Dose Adjustment

no specific recommendation

Key Recommendations

use with caution in mild hepatic impairment; limited data available

Use with caution and monitor for adverse effects.

?

hepatic_impairment

moderate to severe
unknown
FDA Category
N
Dose Adjustment

not established

Key Recommendations

use with caution; not studied in moderate to severe hepatic impairment

Monitor

monitor liver function tests closely

Statistics and clinical data

prescribingFDA
2023

FDA approval year

Value:2021

Initial FDA approval date for Amivantamab

drug_classWHO
2023

Drug class

Value:Bispecific monoclonal antibody (EGFR/MET inhibitor)

Therapeutic classification based on mechanism of action

usageFDA
2023

Primary indication

Value:Non-small cell lung cancer (NSCLC) with EGFR exon 20 insertion mutations

Approved therapeutic indication

administrationFDA
2023

Route of administration

Value:Intravenous infusion

Method of drug delivery

Amivantamab is indicated for the treatment of adult patients with advanced or metastatic non-small cell lung cancer (NSCLC) with EGFR exon 19 deletions or exon 21 L858R substitution mutations, following progression on or after platinum-based chemotherapy.

Amivantamab is a bispecific antibody that binds to the extracellular domains of both EGFR and MET receptors. By simultaneously targeting these two receptors, it disrupts EGFR and MET signaling pathways, inhibiting tumor cell proliferation and survival in cancers with these specific mutations.

Common side effects include infusion-related reactions (particularly with first infusion), skin toxicity, paronychia, and hypokalemia. Patients should be monitored for infusion reactions during and after administration. Dose interruptions or reductions may be needed for certain adverse reactions.

Contraindications

Conditions and patient states where this medication should be avoided or used with caution.

Do not use (1)

ABSOLUTEhypersensitivity

Known allergy to this medication or its components

Use caution (1)

RELATIVEpregnancy

Consult healthcare provider for benefits vs risks assessment

Official drug label

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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed July 26, 2026. · Read our editorial policy