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Other Disclosures4552JCR Pharmaceuticals Co.,Ltd.Pharmaceuticals

Notice of Presentation at the 18th International Symposium on MPS and Related Lysosomal Diseases 2026

At the international symposium to be held in Florence, Italy, from 4 to 7 June 2026, the Company will present new clinical data on JR-171, which is under development, and make an encore presentation of previously presented data on JR-141.

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Announced details

JR-171(lepunafusp alfa)JR-141(pabinafusp alfa)J-Brain Cargo®IZCARGO® intravenous infusion 10 mg
Applicable field (uses covered by this announcement)

Treatment of mucopolysaccharidosis types I and II, lysosomal diseases, neurodegenerative diseases, and central nervous system symptoms

Launch dateIZCARGO® 10 mg for intravenous infusion, the JR-141 product, has been marketed since May 2021.
Award/certification name

JR-171 received Fast Track designation from the U.S. Food and Drug Administration (FDA).

Awarding / certifying body

U.S. Food and Drug Administration (FDA)

In this announcement the company addresses none of Contract Value / Offering price / Impact on Business Performance.

Source (materials cited by the company)

U.S. Food and Drug Administration (FDA), References 1–8, and Company research

Announced details
ItemDetails
Names of Products / Services CoveredJR-171(lepunafusp alfa), JR-141(pabinafusp alfa), J-Brain Cargo®, IZCARGO® intravenous infusion 10 mg
Launch dateIZCARGO® 10 mg for intravenous infusion, the JR-141 product, has been marketed since May 2021.
Applicable areaTreatment of mucopolysaccharidosis types I and II, lysosomal diseases, neurodegenerative diseases, and central nervous system symptoms
Award/certification nameJR-171 received Fast Track designation from the U.S. Food and Drug Administration (FDA).
Awarding / certifying bodyU.S. Food and Drug Administration (FDA)
SourceU.S. Food and Drug Administration (FDA), References 1–8, and Company research
Items this document does not state (12)
CounterpartyCounterparty overviewRelationship with the CompanyContract ValueOffering priceContract DateRegistration number and expiry dateLocationLocation scaleQuantitative EffectsUsage historyImpact on Business Performance

These are items the company does not state in this document. We do not leave them blank, nor fill them in from other sources or by inference.

The reasons the company gives

The company's own explanation, not something inferred from the numbers.

To promote advances in research and medical care relating to mucopolysaccharidoses and related lysosomal diseases, and to demonstrate the potential of the J-Brain Cargo® technology in the treatment of lysosomal diseases and neurodegenerative diseases.

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Notice of Presentation at the 18th International Symposium on MPS and Related Lysosomal Diseases 2026 | JCR Pharmaceuticals Co.,Ltd. (4552) timely disclosure | Komori