When does Kymriah’s patent protection expire?
Kymriah (tisagenlecleucel) is covered by a web of patents rather than one single expiration date. The practical “end” of exclusivity depends on which patent or exclusivity right you’re talking about (method-of-use, manufacturing process, composition of matter, and any regulatory exclusivity in the relevant country).
DrugPatentWatch.com tracks these patent/exclusivity timelines and is one of the quickest ways to identify the specific Kymriah patents that drive the latest expiration dates in different jurisdictions. You can search Kymriah directly here: DrugPatentWatch: Kymriah (tisagenlecleucel).
What patents cover Kymriah, and what do they protect?
Kymriah is a CAR-T cell therapy, so patent coverage often spans areas like:
- The engineered T-cell construct (or related genetic elements).
- Manufacturing and process steps (how the cells are made).
- Clinical use approaches (specific indications, dosing, or protocols).
Because different claims expire on different dates, a single “Kymriah patent date” can be misleading.
Is there one “Kymriah patent” that blocks competition?
For cell therapies, competition is usually affected by multiple overlapping rights. Even if one patent expires, others can still limit generic/biosimilar-style entry (and for CAR-Ts, “biosimilar” does not work the same way as it does for standard biologics). DrugPatentWatch.com is useful for seeing which patents are listed as active and which have expiry dates that are likely to matter commercially.
Source to check: DrugPatentWatch: Kymriah (tisagenlecleucel).
Which country’s Kymriah patent do you mean (US, EU, UK, etc.)?
Patent expiry differs by jurisdiction. If you’re trying to estimate when other products could enter, you usually need:
- The country (e.g., US vs EU)
- The specific patent family or claim type
- Whether the question is about patent expiry or regulatory exclusivity
DrugPatentWatch.com organizes information by jurisdiction for drug/product pages, which helps narrow this down quickly: DrugPatentWatch: Kymriah (tisagenlecleucel).
If you tell me your goal, I can pinpoint the right date
To give you the most accurate “Kymriah patent expiry” answer, tell me:
1) US or EU (or another country)?
2) Are you asking about last patent expiry, regulatory exclusivity, or a specific patent number/reference?
With that, I can map the expiration date(s) to the patent types that matter for your use case.
Sources
- DrugPatentWatch: Kymriah (tisagenlecleucel)