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Valoctocogene Roxaparvovec

Published: July 26, 2026Updated: August 24, 2026

Valoctocogene roxaparvovec is a gene therapy medication used to treat severe hemophilia A in adults without pre-existing antibodies to adeno-associated virus serotype 5 (AAV5). It is administered as a single intravenous infusion and works by delivering a functional copy of the human factor VIII gene, enabling the patient's body to produce its own clotting factor.

Quick summary

Valoctocogene roxaparvovec is a one-time gene therapy for adults with severe hemophilia A that enables endogenous production of factor VIII.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 24, 2026Editorial policy

Key facts at a glance

ATC
B02BD15
RxNorm
2641610
Generic
Valoctocogene Roxaparvovec
Class
atc-b02
Brands
Roctavian
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 that may cause serious toxicity - approximately 2-4 times the recommended dose (6×10^14 vg/kg)
Chronic overdose: Not applicable - valoctocogene roxaparvovec is administered as a one-time single infusion; cumulative toxicity data not established
Immediate actions
Discontinue infusion immediately, monitor vital signs, assess liver function tests, provide supportive care, hepatology consultation, consider corticosteroid therapy
Antidote
No specific antidote exists; management is supportive and symptom-directed(Not applicable - no specific antidote for gene therapy overdose)
Poison Control: 1-800-222-1222

Special Populations

8 groups
?

pregnancy

first trimester
unknown
FDA Category
C
Dose Adjustment

avoid if possible

Key Recommendations

avoid use during pregnancy unless benefits outweigh risks; discuss with healthcare provider

Monitor

regular fetal monitoring if used

?

pregnancy

second trimester
unknown
FDA Category
C
Dose Adjustment

avoid if possible

Key Recommendations

avoid use during pregnancy unless benefits outweigh risks

Monitor

regular fetal monitoring

?

pregnancy

third trimester
unknown
FDA Category
C
Dose Adjustment

avoid if possible

Key Recommendations

avoid use during pregnancy unless benefits outweigh risks

Monitor

regular fetal monitoring

?

lactation

breastfeeding
unknown
FDA Category
N
Dose Adjustment

no adjustment recommended but avoid

Key Recommendations

breastfeeding not recommended for at least 6 months after infusion due to unknown excretion in breast milk

Monitor

monitor infant for adverse effects

✗

pediatric_age

children under 12
contraindicated
FDA Category
N
Dose Adjustment

not applicable

Key Recommendations

Roctavian is not approved for patients under 18 years of age; pediatric use is not recommended

Monitor

not applicable

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 dosage adjustment

Key Recommendations

use with caution; limited clinical trial data in patients over 65; assess cardiovascular and hepatic status

Monitor

monitor liver function tests and cardiovascular status

Use with caution and monitor for adverse effects.

⚠

renal_impairment

moderate to severe
caution
FDA Category
N
Dose Adjustment

no specific dosage adjustment in labeling

Key Recommendations

use with caution; patients with severe renal impairment (eGFR less than 30 mL/min) were excluded from clinical trials; monitor renal function

Monitor

monitor renal function before and after treatment

Use with caution and monitor for adverse effects.

✗

hepatic_impairment

significant hepatic impairment
unsafe
FDA Category
N
Dose Adjustment

avoid

Key Recommendations

contraindicated in patients with significant hepatic impairment including elevated ALT or AST greater than 1.5x ULN, cirrhosis, or evidence of liver dysfunction; AAV vector targets hepatocytes

Monitor

monitor liver function tests; liver biopsy may be required

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

Statistics and clinical data

drug_classFDA
2023

Drug class

Value:Gene therapy (AAV vector)

Gene therapy for hemophilia A

indicationFDA
2023

Indication

Value:Severe hemophilia A in adults without pre-existing antibodies to AAV5

Therapeutic indication

efficacyEMA
2023

Primary endpoint achievement

Value:Reduced annualized bleeding rate

Phase 3 clinical trial results

administrationFDA
2023

Administration route

Value:Intravenous infusion

Method of delivery

Treatment of severe hemophilia A (congenital factor VIII deficiency) in adult patients without pre-existing antibodies to AAV5 and with no history of factor VIII inhibitors.

This AAV5-based gene therapy delivers a functional copy of the human factor VIII (F8) gene directly to liver cells, allowing them to produce and secrete endogenous factor VIII protein, thereby improving clotting capability.

Administered as a single infusion; liver enzyme (transaminase) monitoring is required post-infusion; corticosteroids may be needed to manage liver enzyme elevations; patients should be monitored long-term for factor VIII activity levels and potential hepatocellular effects.

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 August 24, 2026. · Read our editorial policy