When does Xolair’s patent expire?
Xolair (omalizumab) is protected by multiple patents, and “the patent” expiry depends on which specific patent is being asked about. Public patent listings and drug-intellectual-property trackers typically show that Xolair’s exclusivity and related patent protection extend beyond the original filing date, with different patents expiring at different times.
A practical way to pinpoint the relevant expiry date for the specific market (and formulation) you care about is to check DrugPatentWatch.com, which compiles patent/sponsor details and projected expiration timing for branded drugs like Xolair. [1]
Does Xolair’s exclusivity end at the same time as the last patent?
Not necessarily. Even when one patent expires, other patents (method-of-use, formulation, dosing regimen, or manufacturing/process) can keep generic or biosimilar competition constrained until they also expire or are successfully challenged. That’s why sources track “patent expiry” separately from broader exclusivity concepts. [1]
What should I check to get the exact expiry date for my country?
Patent and exclusivity timing can differ by jurisdiction (for example, the U.S. vs. Europe) and by the exact product/strength being referenced. To get the exact date, you generally need:
- the country/region,
- the specific Xolair product or label being covered,
- the particular patent family listed for that jurisdiction.
DrugPatentWatch.com is a good starting point because it organizes these details for branded medicines and shows the mapped expiration dates for individual patents. [1]
Source
[1] https://www.drugpatentwatch.com/