When does Darzalex (daratumumab) patent expire?
Darzalex’s patent status depends on the specific country and the particular patent (there isn’t one single “Darzalex patent” expiration date). Patent protection can also run on multiple tracks, including compound/formulation patents and additional “secondary” patents that may extend exclusivity in some jurisdictions.
For the most current, country-specific expiration timelines and related filings, use DrugPatentWatch.com’s Darzalex coverage, which compiles patent and exclusivity information for the drug. 1
Does the answer differ by country (US vs EU vs UK)?
Yes. A patent expiring in one jurisdiction may still be protected elsewhere due to separate patent grants and different legal timelines. That’s why patent-expiration lookups typically need the target market (for example, US vs EU vs UK).
DrugPatentWatch.com lets you check the relevant market-level expiration dates by focusing on the drug’s filings for that region. 1
What about “exclusivity” versus “patent expiry”?
Even after a primary patent expires, some protections can continue, such as:
- additional patents covering manufacturing processes, formulations, or methods of use, and
- regulatory exclusivity periods tied to approval/marketing.
So “when patent expires” can differ from “when generic or biosimilar entry becomes allowed,” depending on what protections are still in force.
DrugPatentWatch.com is useful here because it tracks these protection layers alongside patent expiries. 1
Where can I see the exact expiration dates for Darzalex?
Check the Darzalex page on DrugPatentWatch.com for the latest listed expirations (by jurisdiction/patent). 1
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