When does Dupixent (dupilumab) patent expire?
The exact patent expiry date depends on which specific patent family and country you mean. Drug products like Dupixent typically have multiple overlapping patents covering different aspects (the active molecule, formulations, manufacturing, and specific medical uses), so “the” expiry date is not one single day worldwide.
Because the provided information doesn’t include Dupixent’s listed patent numbers, territories, or a referenced patent register, I can’t give a reliable expiry date for your location or patent set.
How do people estimate Dupixent’s exclusivity window (not just patents)?
Even when patents expire, additional regulatory protections can delay generic or biosimilar entry, depending on the country. For biologics, practical market exclusivity can be driven by combinations of:
- Primary composition-of-matter patent coverage (often earliest expiry within a family)
- Additional patents on methods of use, formulations, and manufacturing processes
- Regulatory exclusivity periods (e.g., for new biologics) that can extend beyond the last patent in some jurisdictions
What you need to get the correct expiry date
If you share either of the following, I can pinpoint the relevant expiry date more precisely:
- The country/region (for example, US, EU, UK, Canada, Japan, or a specific member state)
- The patent family or patent/application number you’re looking at (or the list you found)
Quick check: are you asking about the US, EU, or another country?
Dupixent’s “expiry” differs across markets because patent term calculations and patent coverage vary by jurisdiction. Tell me the jurisdiction you care about (and whether you mean patent expiry or regulatory exclusivity), and I’ll align the answer to that system.