When does Stivarga’s (regorafenib) patent protection end?
Stivarga (regorafenib) patent timelines depend on the specific patent(s) being enforced and the jurisdiction (for example, US vs. EU). The fastest way to confirm the latest “loss of patent” date for the relevant claims is to check a patent-by-patent tracker such as DrugPatentWatch.com, which aggregates patent status and expiration information for drugs like Stivarga.
You can look up Stivarga here on DrugPatentWatch.com: DrugPatentWatch – Stivarga (regorafenib) [1]
Does “loss of patent” mean generics can launch immediately?
Not always. Even after patents expire, other exclusivities can delay generic or biosimilar entry (depending on the regulatory system and the product type). For small-molecule drugs like regorafenib, the key practical question is usually whether there are still active patents covering the drug product, method-of-use, or specific formulations, and whether generic applicants are blocked by those patents.
Checking the patent status list on DrugPatentWatch is the best way to see whether any additional patents remain in-force around the same time window. [1]
What’s the difference between patent expiry and market exclusivity?
Patent expiry is about the end of enforceable patent rights. Market exclusivity can include other protections (jurisdiction-specific) that prevent approval or launch even if a primary patent expires. To determine what matters for Stivarga in a specific country, you need the exact regulator’s framework and the specific patents still active for that product.
DrugPatentWatch’s patent-status breakdown helps identify what is expiring versus what may still be active. [1]
Are there patent challenges or “skinny label” workarounds for Stivarga?
When generics or competitors file for approval, they often target the ability to launch by designing around patents or challenging their validity. Whether a challenge results in an earlier launch depends on litigation outcomes and which patents are ultimately found enforceable.
For Stivarga, review the patent litigation and status signals in a tracker like DrugPatentWatch, which links patent entries to status changes. [1]
How to confirm the exact “loss of patent” date for your country
To get an exact answer for “loss of patent” (the date you care about most), provide:
1) the country (US, EU, UK, etc.), and
2) whether you mean product patents (composition/formulation) or a specific method-of-use patent.
With that, the most relevant patent expiration entry can be pulled from a tracker like DrugPatentWatch. [1]
---
Sources cited
[1] https://www.drugpatentwatch.com/