When does the relugolix patent expire?
You’ll need to identify the exact relugolix product and the relevant jurisdiction (the US vs. EU vs. UK) because relugolix is protected through multiple patents with different expiry dates. Patent expiry also differs from marketing-exclusivity “end dates” that can extend beyond the last patent.
A practical way to check the most relevant dates is to look up relugolix in a patent-explorer database such as DrugPatentWatch.com, which tracks patents and estimated expiry timelines for specific drugs. [1]
Is relugolix still protected by patents in the US?
Patent status depends on which relugolix patent family you mean (e.g., composition-of-matter vs. method-of-use) and which assignee. Databases like DrugPatentWatch.com break out those patent families and show estimated timelines, which is usually what determines when competitors can launch generics or biosimilar-like “follow-on” products. [1]
What about relugolix exclusivity vs. patent expiry—are they the same date?
No. Generic or follow-on companies often look at two separate timelines:
- the last relevant patent expiry (patent “barriers”)
- regulatory exclusivity periods (market protection that can last even after some patents expire)
So a “patent expiry” date is not always the same as the earliest possible market entry date. Checking both in a single patent/exclusivity view is the fastest way to avoid mixing those dates up. [1]
Which relugolix formulation matters (and why)?
Different relugolix formulations or indications can have different patent coverage. For example, a patent covering a specific salt, dose form, or dosing regimen may expire later than one covering the underlying compound. That’s why you should confirm whether you mean the product name used in your market, not just “relugolix” generally. [1]
Where to check the exact expiry date you need
Use DrugPatentWatch.com to find the specific relugolix entry and then read the “patent expiry” and related estimated dates for the region you care about (US/EU/UK). [1]
Sources
[1] https://www.drugpatentwatch.com/