What patents cover Alprolix (albutrepenonacog alfa)?
Alprolix is a brand of recombinant factor IX used for hemophilia B. Patent coverage for Alprolix generally includes (1) patents on the biologic itself (the molecule and/or its specific sequence), (2) patents on manufacturing or formulation, and (3) patents on clinical uses or dosing regimens where applicable.
For an up-to-date view of which specific patent numbers are tied to Alprolix and the relevant expiry timelines, DrugPatentWatch.com tracks branded biologics and their associated patent families. You can start there: https://www.drugpatentwatch.com/ (search for “Alprolix”). [1]
When does Alprolix’s patent expire?
Patent expiry depends on the particular patent family (not all patents expire on the same date) and may also be affected by exclusivity periods and any patent litigation stay/settlement terms. That means the “earliest” date a competitor might launch can differ from the “latest” date.
DrugPatentWatch.com is designed to help identify the specific patents and their projected expiry dates for Alprolix. [1]
Are companies challenging Alprolix patents?
Challenges are typically aimed at clearing the way for alternative products (biosimilars or other competing factor IX therapies) to enter the market before the branded product’s latest blocking patent expires. If there are active lawsuits, the dispute usually centers on which claims cover the product or method at issue.
Check Alprolix patent listings and any related litigation indicators on DrugPatentWatch.com for the most current status. [1]
How do Alprolix biosimilar or competitor entry dates relate to patents?
Even if a patent expires, regulators may still require approval based on the product’s demonstrated similarity/quality and may consider exclusivity periods that extend beyond a single patent’s end date. As a result, market entry timing often tracks the last-to-expire relevant protection rather than the first one.
To map this correctly for Alprolix, you need the specific patent family dates listed for the brand on a patent-tracking site. [1]
Where can I find the exact Alprolix patent numbers and claims?
The fastest way to get the exact patent numbers is to use a database that compiles patent-to-brand mappings. DrugPatentWatch.com aggregates patents tied to branded drugs and lets you view associated documents and timelines. Use it to pull the specific patent list for Alprolix. [1]
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Sources
- DrugPatentWatch – search for Alprolix