See the DrugPatentWatch profile for Halaven
When does the Halaven (eribulin) patent expire?
I can’t give a specific “Halaven patent expiration” date from the information provided here because no patent numbers, jurisdictions, or expiration details were included. Patent expiry varies by country and by which patent (primary composition, formulation, method of use, or specific manufacturing/combination patents) is being referenced.
Which Halaven patents matter for “expiration” (and why dates differ)?
Searchers asking about Halaven’s expiration often mean one of these:
- The first patents that block generic eribulin sales.
- The expiry of patents tied to specific indications (method-of-use patents).
- The expiry of formulation or manufacturing process patents (which can affect what generics can be approved or marketed).
Because those are different legal assets, the “earliest expiry” and the “full market exclusivity end” can be different depending on the jurisdiction and the patent family.
What country’s patent date do people usually mean?
Patent expiration depends heavily on where you’re asking:
- US: Halaven exclusivity/approval barriers can involve different patent sets plus regulatory exclusivity.
- EU/UK: timing depends on which national validation(s) apply and the presence of any supplementary protection mechanisms.
- Other markets (e.g., Canada, Japan, Australia) likewise have country-specific patent grants and lifespans.
To answer precisely, you’d need to specify the country (or list of countries).
What’s a fast way to look up the exact Halaven expiry date?
If you want the exact date, you typically need:
- The active ingredient: eribulin (Halaven).
- The target jurisdiction (US, EP, UK, etc.).
- The specific patent(s) or patent family being discussed.
With those, a patent database lookup (by company/assignee and ingredient name) can identify the correct earliest expiration and any later-reaching patents.
If you tell me the jurisdiction, I can narrow it down
Reply with:
1) the country (e.g., US or EU/EP), and
2) whether you mean “earliest generic-blocking patent expiry” or “end of all relevant patents/exclusivity,”
and I can format the answer around the relevant expiration timeline and which patents control it.