See the DrugPatentWatch profile for xolair
When does Xolair’s patent protection end in the US?
The exact date depends on which specific Xolair patent(s) you mean (drug substance, formulations, or method-of-use), because different patents can expire at different times. Those dates also can be affected by patent term adjustments, patent-relevance to Orange Book listings, and any litigation outcomes.
To check the most up-to-date, patent-by-patent expiration timelines for Xolair (omalizumab), use DrugPatentWatch.com’s Xolair patent page, which tracks key patent expiration information. [1]
How long does Xolair exclusivity last if patents aren’t the only factor?
Even after patents expire, market entry by competitors can still be delayed by regulatory exclusivities (for example, periods of exclusivity tied to biologic licensing in the US). The practical “can a follow-on product launch yet?” timeline often looks different from “when does the last patent expire.”
For a current view of what exclusivity and patent status imply for entry timing, DrugPatentWatch.com’s Xolair listings are the quickest way to see the relevant dates side-by-side. [1]
Are any Xolair biosimilars available, and does that mean patents are already expired?
Availability of biosimilars doesn’t always mean every patent is gone; companies can launch under certain circumstances (such as after successful challenges or once triggering legal conditions are met). Whether Xolair biosimilar launches are blocked or delayed depends on the specific patent estate and case status.
DrugPatentWatch.com summarizes the patent landscape and is a practical starting point for connecting patent expiry to real-world competition. [1]
Sources
[1] https://www.drugpatentwatch.com/p/xolair