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Durvalumab

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

Durvalumab is an immunotherapy medication classified as a monoclonal antibody that targets programmed cell death ligand-1 (PD-L1). It works by blocking the PD-L1 pathway, which allows the immune system to better recognize and attack cancer cells. This medication is primarily used to treat various cancers, including non-small cell lung cancer, small cell lung cancer, bladder cancer, biliary tract cancer, and hepatocellular carcinoma.

Quick summary

Durvalumab is a PD-L1 inhibitor monoclonal antibody used to treat several cancers by helping the immune system attack tumor cells.

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

Key facts at a glance

ATC
L01FF03
RxNorm
1919503
Generic
Durvalumab
Class
atc-l01
Brands
Imfinzi
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: Single dose significantly above recommended therapeutic dose that may lead to severe immune-mediated adverse events
Chronic overdose: Cumulative dosing above recommended duration or frequency may increase risk of immune-related toxicities
Immediate actions
Discontinue drug, initiate supportive care, monitor vital signs, evaluate organ function, consider high-dose corticosteroids
Antidote
No specific antidote available(Treatment is supportive and symptomatic; immunomodulatory therapy with corticosteroids is primary intervention)
Poison Control: 1-800-222-1222

Special Populations

9 groups
✗

pregnancy

first trimester
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 and ultrasound assessments

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

✗

pregnancy

second and third trimester
unsafe
FDA Category
C
Dose Adjustment

avoid if possible

Key Recommendations

avoid use during pregnancy especially in later trimesters

Monitor

regular fetal monitoring including growth assessments

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

✗

lactation

breastfeeding
unsafe
FDA Category
N
Dose Adjustment

discontinue breastfeeding

Key Recommendations

do not breastfeed during treatment and for at least 3 months after last dose

Monitor

no specific monitoring required

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

⚠

geriatric

elderly over 65
caution
FDA Category
N
Dose Adjustment

no specific dose adjustment required

Key Recommendations

use with caution and monitor for adverse reactions

Monitor

regular monitoring of renal and hepatic function

Use with caution and monitor for adverse effects.

✗

pediatric_age

children under 18
unsafe
FDA Category
N
Dose Adjustment

not recommended

Key Recommendations

not approved for use in pediatric patients under 18 years of age

Monitor

not applicable

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

✓

renal_impairment

mild moderate
safe
FDA Category
N
Dose Adjustment

no dose adjustment needed

Key Recommendations

no dose adjustment required for mild to moderate renal impairment

Monitor

routine monitoring of renal function

⚠

renal_impairment

severe
caution
FDA Category
N
Dose Adjustment

use with caution

Key Recommendations

limited data available for severe renal impairment; use with caution

Monitor

close monitoring of renal function and adverse effects

Use with caution and monitor for adverse effects.

✓

hepatic_impairment

mild
safe
FDA Category
N
Dose Adjustment

no dose adjustment needed

Key Recommendations

no dose adjustment required for mild hepatic impairment

Monitor

routine monitoring of liver function tests

⚠

hepatic_impairment

moderate severe
caution
FDA Category
N
Dose Adjustment

use with caution

Key Recommendations

limited data available for moderate to severe hepatic impairment; use with caution

Monitor

close monitoring of liver function tests and adverse effects

Use with caution and monitor for adverse effects.

Statistics and clinical data

prescribingFDA
2023

FDA approval year

Value:2017

FDA approved Durvalumab under the brand name Imfinzi

drug_classFDA
2023

Drug class

Value:PD-L1 inhibitor (Immunotherapy)

Monoclonal antibody immunotherapy drug

usageNCCN
2023

Common uses

Value:Bladder cancer, non-small cell lung cancer, biliary tract cancer, hepatocellular carcinoma

Approved therapeutic indications

mechanismFDA
2023

Mechanism of action

Value:PD-L1 blocking antibody

Binds to PD-L1 and blocks interaction with PD-1 and CD80

Durvalumab is approved for treating non-small cell lung cancer (NSCLC), small cell lung cancer (SCLC), biliary tract cancer, hepatocellular carcinoma, and previously treated urothelial carcinoma. It may be used alone or in combination with other therapies depending on the cancer type and stage.

Durvalumab is a monoclonal antibody that binds to PD-L1 on tumor cells and immune cells in the tumor microenvironment. By blocking PD-L1, it prevents the ligand from inhibiting T-cell function and activation, allowing the immune system to recognize and destroy cancer cells more effectively.

Durvalumab is administered intravenously and may cause immune-related adverse reactions affecting various organs including the lungs, liver, colon, and endocrine glands. Patients should be monitored for signs of immune-mediated toxicity. Common side effects include fatigue, musculoskeletal pain, decreased appetite, and rash. Treatment should be supervised by oncologists experienced in immunotherapy.

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