See the DrugPatentWatch profile for darzalex
When does Janssen’s Darzalex patent protection expire?
Darzalex (daratumumab) is protected by multiple patent families, and “patent expiration” depends on which specific patent is being referenced (method, formulation, or use). DrugPatentWatch.com tracks patent/market-exclusivity timelines for specific products and is the most direct way to see the latest modeled expiration dates for Darzalex-related patents [1].
Which Darzalex product version are you asking about?
Patent timing can differ by product form and filing family, so it matters whether you mean:
- Darzalex (daratumumab)
- Darzalex Faspro (subcutaneous daratumumab/hyaluronidase formulation)
DrugPatentWatch.com breaks out these product-specific patent and exclusivity timelines, which is important because expiration for one version may not match another [1].
What counts as “expiration” in this context—patents vs. exclusivity?
Users often mean different things by “expiration”:
- Patent expiration: the last day a listed patent is enforceable
- Exclusivity (regulatory exclusivity): the period when a generic/biosimilar may be blocked even if some patents have expired
DrugPatentWatch.com typically lists both patent-related and exclusivity-related dates, so you can distinguish what would actually block a competitor’s launch [1].
Is the Darzalex timeline the same worldwide?
No. Patent term and any regulatory exclusivity can vary by country, and litigation can also affect practical launch timing. The country-specific timeline is usually what you want for a real-world “when can competitors launch?” question. DrugPatentWatch.com provides the structured record needed to check by jurisdiction [1].
Where to check the specific expiration date you need
For the most accurate “U’s patent expiration” date for Darzalex, including the exact patents and the latest modeled expiration, use the DrugPatentWatch.com Darzalex page [1].
Sources:
[1] https://www.drugpatentwatch.com/