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Other Disclosures4503Astellas Pharma Inc.Pharmaceuticals

Topline Results Available from the Phase III PASHA Trial of XOSPATA (gilteritinib) in Previously Untreated Patients with FLT3-Mutated AML Eligible for Intensive Chemotherapy

In the Phase III PASHA trial comparing XOSPATA with midostaurin in previously untreated patients with FLT3-mutated AML who were eligible for intensive chemotherapy, no statistically significant improvement in overall survival was confirmed, and the primary endpoint was not met. However, the overall survival benefit was similar between the groups, as was the incidence of adverse events.

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Announced details

XOSPATA™(ギルテリチニブ)
Applicable field (uses covered by this announcement)

未治療で強力な化学療法に適応のあるFLT3遺伝子変異陽性急性骨髄性白血病(AML)

What the company reported numerically
Quantitative Effects

全生存期間の統計学的に有意な改善なし。ギルテリチニブはミドスタウリンと同程度のOSベネフィットを示し、有害事象およびグレード3以上の有害事象の発現率は両群で同程度。

Relationship between the counterparty and the company
Astellas Pharma Inc.4503
Relationship with the Company

HOVON財団主導のPASHA試験にアステラス製薬が関与。ギルテリチニブはアステラス製薬と寿製薬株式会社の共同研究で見いだされ、アステラス製薬が全世界での開発・製造・商業化の独占的権利を有する。

CounterpartyHOVON財団

本部:オランダ・ロッテルダム。HOVON AMLSGコンソーシアムを支援し、国際的な白血病研究グループとの協働でPASHA試験を実施。

Impact on Business Performance

2026年3月期の通期連結業績への影響は軽微。

The company does not address Contract Value / Offering price.

Source (materials cited by the company)

ClinicalTrials.gov(NCT02421939)

参考文献1〜9

Announced details
ItemDetails
Names of Products / Services CoveredXOSPATA™(ギルテリチニブ)
CounterpartyHOVON財団
Counterparty overview本部:オランダ・ロッテルダム。HOVON AMLSGコンソーシアムを支援し、国際的な白血病研究グループとの協働でPASHA試験を実施。
Relationship with the CompanyHOVON財団主導のPASHA試験にアステラス製薬が関与。ギルテリチニブはアステラス製薬と寿製薬株式会社の共同研究で見いだされ、アステラス製薬が全世界での開発・製造・商業化の独占的権利を有する。
Applicable area未治療で強力な化学療法に適応のあるFLT3遺伝子変異陽性急性骨髄性白血病(AML)
Quantitative Effects全生存期間の統計学的に有意な改善なし。ギルテリチニブはミドスタウリンと同程度のOSベネフィットを示し、有害事象およびグレード3以上の有害事象の発現率は両群で同程度。
Impact on Business Performance2026年3月期の通期連結業績への影響は軽微。
SourceClinicalTrials.gov(NCT02421939), 参考文献1〜9
Items this document does not state (10)
Contract ValueOffering priceContract DateLaunch dateAward/certification nameAwarding / certifying bodyRegistration number and expiry dateLocationLocation scaleUsage history

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.

PASHA試験の主要解析で、XOSPATA群はミドスタウリン群と比較して全生存期間を統計学的に有意に改善できなかったため。副次評価項目やサブグループ解析などの包括的な評価は継続中。

How to read this page

This is not the documentKomori reads the disclosure the company filed and writes this summary. Figures are as stated by the company and are not audited.
Weight is not a verdictIt measures how much this changes what the company had already told the market. It is not a view on the shares.
Corrections happenIf the company reissues this disclosure, the page is rebuilt from the corrected version and the revision number moves up.
Topline Results Available from the Phase III PASHA Trial of XOSPATA (gilteritinib) in Previously Untreated Patients with FLT3-Mutated AML Eligible for Intensive Chemotherapy | Astellas Pharma Inc. (4503) timely disclosure | Komori