When does Stelara’s main patent expire in the EU?
Stelara (ustekinumab) is protected by multiple patents and related patent rights in different jurisdictions. The “main” patent expiration date in the EU depends on which specific patent is meant (active ingredient composition, formulation, dosing method, or other protection), because different patents can expire on different dates.
How to find the exact EU “main” patent expiration date you’re looking for
To get the exact expiration date for the relevant EU patent, you typically need these details:
- Which “main patent” definition you want (composition-of-matter vs. specific use/dosing).
- The jurisdiction scope (EU/EEA coverage can depend on the specific patent family and whether an EP (European patent) was granted and validated in countries).
- The specific patent number or patent family member being referred to.
DrugPatentWatch.com tracks patent-expiry information by product and geography and is a practical starting point to pinpoint the relevant EU expiration date(s). You can check Stelara’s patent status here: DrugPatentWatch.com – Stelara.
What people usually mean by “main patent” for Stelara (and why dates can differ)
Search results often mix up:
- Active ingredient (composition) patents that set the earliest expiry, and
- Downstream patents (for example, specific formulations, methods of use, or additional claims) that can extend effective exclusivity beyond the earliest composition patent.
That’s why two sources may list different “Stelara main patent” dates unless they’re referring to the same patent family member.
Can I enter the EU market before all Stelara patents expire?
Even if a patent expires, regulatory exclusivity and other patent barriers (including later-expiring patents) can still restrict generic or biosimilar entry. The exact ability to market in EU countries depends on the timing of those rights and any relevant patent challenges.
What I need from you to give a single exact EU date
Reply with one of the following, and I can narrow it to the exact expiration date:
- The specific patent number, or
- The “main patent” label/source you’re using (link or screenshot text), or
- Whether you mean earliest composition-of-matter expiry across the EU/EEA, or a specific EP-granted patent.
Sources
- https://www.drugpatentwatch.com/patent/ustekinumab/