Asfotase alfa
As of the edition of 20 October 2026, Asfotase alfa is an enzyme: marketed, first approved in 2015 (JP); US protection ends in 2027.
Sources: FDA Orange Book and Purple Book, other approval registers, ClinicalTrials.gov, ChEMBL.
The drug
- Status
- Marketed; latest approval 2015
- Kind
- Enzyme
- Brand name
- Strensiq
- First approved
- 3 July 2015 (JP)
- Approvals on record
- 11 in 4 regions
- Holder of the most recent approval
- AstraZeneca; 2 holders in all
- Registered trials
- 17, 2 stopped early
- Disease areas
- Inherited and neonatal; Nutrition and metabolism; Bones, joints and muscles; Infections; Blood and lymph; Cancer
US protection
US protection ends in 2027.
US protection ends in 2027, computed as 12 years from the first US licence because FDA publishes no date for this product. The application that gives this date is held by AstraZeneca. The date is computed, not published.
This is the US only, and it is not the date generics or biosimilars can enter.
The exact date and the listings behind it
In the product2 listings count towards this date. The exact date and each listing are in the product.
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Registered trials
| Phase | Trials | Completed | Active | Stopped early |
|---|---|---|---|---|
| Phase not stated | 3 | 1 | 1 | 0 |
| Phase 1 | 1 | 1 | 0 | 0 |
| Phase 2 | 9 | 8 | 0 | 1 |
| Phase 3 | 2 | 1 | 1 | 0 |
| Phase 4 | 2 | 1 | 0 | 1 |
| All trials | 17 |
Who has held its approvals
| Company | Role | Years |
|---|---|---|
| AstraZeneca | Applicant and Lead sponsor of trials | 2015 to now |