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MEPSEVII (VESTRONIDASE ALFA-VJBK)

ULTRAGENYX PHARM INC · FDA-approved approved ✓ Verified May 2026

MEPSEVII (generic name: VESTRONIDASE ALFA-VJBK) is a drug developed by ULTRAGENYX PHARM INC. It is currently FDA-approved for Mucopolysaccharidosis, MPS-VII.

Mepsevii is a hydrolytic enzyme used to treat Mucopolysaccharidosis VII, also known as Sly Syndrome. It works by hydrolyzing glycosaminoglycans, a type of molecular target.

At a glance

Generic nameVESTRONIDASE ALFA-VJBK
SponsorULTRAGENYX PHARM INC
Therapeutic areaOther
PhaseFDA-approved

Approved indications

Common side effects

Serious adverse events

Key clinical trials

Primary sources

Every claim on this page is sourced from regulatory or scientific primary sources. See our editorial policy for full methodology.

SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results

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Frequently asked questions about MEPSEVII

What is MEPSEVII?

MEPSEVII (VESTRONIDASE ALFA-VJBK) is a pharmaceutical drug developed by ULTRAGENYX PHARM INC, indicated for Mucopolysaccharidosis, MPS-VII.

What is MEPSEVII used for?

MEPSEVII is indicated for Mucopolysaccharidosis, MPS-VII.

Who makes MEPSEVII?

MEPSEVII is developed and marketed by ULTRAGENYX PHARM INC (see full ULTRAGENYX PHARM INC pipeline at /company/ultragenyx-pharm-inc).

What is the generic name of MEPSEVII?

VESTRONIDASE ALFA-VJBK is the generic (nonproprietary) name of MEPSEVII.

What development phase is MEPSEVII in?

MEPSEVII is FDA-approved (marketed).

What are the side effects of MEPSEVII?

Common side effects of MEPSEVII include Infusion site extravasation, Diarrhea, Rash, Infusion site swelling, Peripheral swelling, Pruritus. Serious adverse events: Anaphylaxis, Febrile convulsion.

Related

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing