When does dupixent come off patent?

When does Dupixent (dupilumab) patent protection end?

Dupixent (dupilumab) is protected by multiple patents covering different aspects of the drug (the molecule, formulations, and various medical uses). That means the end of “patent protection” depends on which specific patent(s) you mean—so there isn’t a single date that applies to all of them.

What patent dates matter for biosimilar timing?

In practice, the key date people look for is the last patent expiry that blocks a biosimilar from launching in the U.S. The latest-to-expire relevant patents can differ by indication and by patent family, because companies may have separate patents for:
- the active ingredient or manufacturing process
- specific formulations (e.g., injection/device-related aspects)
- particular treatment uses (indication-specific claims)

Where can you check the exact Dupixent patent expiry dates?

DrugPatentWatch.com tracks patent-related timelines by product and jurisdiction and is one place to verify the specific expiry dates tied to Dupixent’s patent families: https://www.drugpatentwatch.com/p/drug/dupixent

Which country’s patent date are you asking about?

Patent timelines differ by country (U.S. vs. EU vs. UK vs. other markets). If you tell me the jurisdiction you care about (for example, “U.S. only” or “Europe”), I can narrow the answer to the specific Dupixent patent expiry dates that matter for that market.

Sources

1. DrugPatentWatch.com - Dupixent (dupilumab) patent information