Strensiq Purple Book BLA 125513

BLA number
125513
Proprietary names
Strensiq
Proper names
asfotase alfa
Applicant
Alexion Pharmaceuticals, Inc.
Center
CDER
First observed release
2020-05-01
Latest observed release
2026-06-01
Newest archive release
2026-06-01
FDA patent list
No patents listed in the captured FDA patent list; source updated 2025-06-11
Coverage
Present in newest release

Latest Known Product Presentations#

Product, Proprietary name, Proper name table
ProductProprietary nameProper nameLicense typeStrengthDosage formRoutePresentationMarketingLicensureApprovalPatent list provided
001Strensiqasfotase alfa351(a)18MG/0.45MLInjectionSubcutaneousSingle-Dose VialRxLicensed2015-10-23
002Strensiqasfotase alfa351(a)28MG/0.7MLInjectionSubcutaneousSingle-Dose VialRxLicensed2015-10-23
003Strensiqasfotase alfa351(a)40MG/MLInjectionSubcutaneousSingle-Dose VialRxLicensed2015-10-23
004Strensiqasfotase alfa351(a)80MG/0.8MLInjectionSubcutaneousSingle-Dose VialRxLicensed2015-10-23

Published Patent List#

No patents for this BLA were listed in the FDA Purple Book patent list captured from the source updated 2025-06-11.

Official Monthly Change Events#

Release, Event, Product table
ReleaseEventProductNameLicense typeStatusApplicant
2020-08-01U001Strensiq351(a)RxAlexion Pharmaceuticals, Inc.
2020-08-01U002Strensiq351(a)RxAlexion Pharmaceuticals, Inc.
2020-08-01U003Strensiq351(a)RxAlexion Pharmaceuticals, Inc.
2020-08-01U004Strensiq351(a)RxAlexion Pharmaceuticals, Inc.
2020-05-01R001Strensiq351(a)RxAlexion Pharmaceuticals, Inc.
2020-05-01R002Strensiq351(a)RxAlexion Pharmaceuticals, Inc.
2020-05-01R003Strensiq351(a)RxAlexion Pharmaceuticals, Inc.
2020-05-01R004Strensiq351(a)RxAlexion Pharmaceuticals, Inc.

Observed Product State History#

Release, Product, Name table
ReleaseProductNameLicense typeMarketingLicensureApproval
2020-08-01001Strensiq351(a)RxLicensed2015-10-23
2020-08-01002Strensiq351(a)RxLicensed2015-10-23
2020-08-01003Strensiq351(a)RxLicensed2015-10-23
2020-08-01004Strensiq351(a)RxLicensed2015-10-23
2020-05-01001Strensiq351(a)RxLicensed2015-10-23
2020-05-01002Strensiq351(a)RxLicensed2015-10-23
2020-05-01003Strensiq351(a)RxLicensed2015-10-23
2020-05-01004Strensiq351(a)RxLicensed2015-10-23