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IC51 · Ixiaro

Vaccine (Inactivated vaccine) · Immune activation, directed at Japanese encephalitis virus · developed by Valneva Austria GmbH

Approved FDA, Mar 2009
VALN Developer
5 Registered trials

What is IC51?

IC51 is a purified inactivated vaccine against Japanese encephalitis virus, given intramuscularly in two doses. It is studied in Japanese encephalitis and encephalitis, with the vaccine intended to stimulate immunity against the virus.

Summary written with AI from the sources listed at the end of this page.

At a glance

Also known as
Ixiaro
Drug type
Vaccine (Inactivated vaccine)
Targets
Japanese encephalitis virus (antigen)
Mechanism
Immune activation, directed at Japanese encephalitis virus
Therapy area
Infectious disease
Developer
Valneva Austria GmbH (VALN)
FDA status
Approved as Ixiaro (March 30, 2009), BLA125280
UNII
DZ854I04ZE

🧪 Clinical trials

TrialPhaseConditionStatusSponsor
NCT01246479 Phase 3 Japanese Encephalitis Completed VALN
NCT01041573 Phase 3 Encephalitis Completed VALN
NCT00595465 Phase 3 Japanese Encephalitis Completed VALN
NCT00594958 Phase 3 Japanese Encephalitis Completed VALN
NCT00605085 Phase 3 Japanese Encephalitis Completed VALN

Trials of the companies BioRadar tracks, from ClinicalTrials.gov, most advanced phase first.

Conditions studied

EncephalitisJapanese Encephalitis

More from Valneva Austria GmbH

Sources

Updated Oct 11, 2026. Something wrong or missing? Report it on the VALN page.

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Data: FDA (Drugs@FDA, Purple Book, DailyMed), NIH (NCI Thesaurus, GSRS, RxNorm), ClinicalTrials.gov • Informational purposes only, not medical or investment advice. • All drugs A–Z

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