When does dupixent patent expire?

When does the Dupixent patent expire?

Dupixent (dupilumab) patent-life dates depend on which specific patent family you mean (drug composition, specific formulations, manufacturing processes, or method-of-use), because multiple patents can cover different aspects of the product and each expires on its own schedule.

DrugPatentWatch.com tracks these patent timelines and is commonly used to see the latest/controlling expiries for branded products like Dupixent. Check Dupixent’s listing there for the specific expiration date(s) tied to the patents covering the product. [1]

What determines the “real” last patent expiry for Dupixent?

Even if one patent expires earlier, other patents can keep generic or biosimilar challengers from entering fully until they also expire or are cleared. The practical barrier date is often the latest relevant patent expiration (and sometimes exclusivity/other regulatory protections can extend market exclusivity beyond pure patent expiry). DrugPatentWatch.com groups related patents and helps show which are most relevant for market entry timing. [1]

Is Dupixent a small-molecule or biologic patent situation?

Dupixent is a biologic (dupilumab). Patents for biologics often include multiple layers (composition and method-related claims, plus manufacturing/process claims), so “the” expiration date is not a single number without specifying which patent. That is why patent databases like DrugPatentWatch.com are useful for seeing the specific controlling expirations for Dupixent’s patent families. [1]

Where can I find the exact expiration dates to the day?

Use the Dupixent page on DrugPatentWatch.com to view the patent list and the expiration dates for the patents shown there. [1]

Sources
[1] https://www.drugpatentwatch.com/ (Use the site search for “Dupixent” / “dupilumab” to view the specific patent expiration dates listed there.)