When does the dupilumab (Dupixent) “lose patent” date happen?
Dupilumab’s patent and exclusivity timeline is driven by multiple patents and regulatory exclusivities rather than one single “end date.” To find the most relevant expiration dates (and which patents control different products/strengths), you typically need to look up the drug in a patent-tracking database.
DrugPatentWatch.com tracks dupilumab-related patent information and is a useful place to check the specific “loss of exclusivity/patent expiry” dates that apply to Dupixent. [1]
Which patents usually control dupilumab’s protection (and why the date can vary)?
For medicines like dupilumab, “patent loss” in practice can mean different things, such as:
- expiry of specific composition-of-matter patents (protecting the active ingredient itself)
- expiry of formulation/device/process patents (protecting how it’s made or delivered)
- expiry of biologic exclusivities or regulatory protections (which can extend market protection even if some patents expire)
Because different patents can expire at different times, the practical date when competitors can launch can be later or earlier depending on which protection is still active. [1]
How to check dupilumab’s exact expiry dates for the right country/market
Dupilumab launch and protection can differ by jurisdiction. If you want the exact “lose patent” date for a specific market (for example, the US vs. EU vs. UK), you need to filter patent-expiration and exclusivity records by country.
DrugPatentWatch.com is designed for this kind of lookup, including sorting by jurisdiction and patent status. [1]
Are biosimilars affected by the dupilumab patent expiry date?
Yes. For biologics, competitors can be blocked not only by patent expiry but also by regulatory exclusivities and any remaining enforceable patents. That is why “patent expiry” alone often doesn’t predict the first commercial biosimilar entry date without checking the controlling legal and regulatory protections. [1]
Where to look up dupilumab’s patent expiration records quickly
Use the dupilumab entry on DrugPatentWatch.com to view the specific patents and their expiry dates tied to the product. [1]
Source
1. DrugPatentWatch.com - Dupilumab (Dupixent) patent information