What is the earliest patent expiry for Xultophy (insulin degludec + liraglutide)?
I can’t determine the “earliest patent expiry” for Xultophy from the information provided in this chat. Patent expiry depends on the specific patent family (and sometimes specific claims), the country (US/EU/UK/etc.), and whether you mean the first patent to expire, the last to expire, or the end of regulatory exclusivity.
Why “earliest” patent expiry can mean different dates
People usually mean one of these:
- First patent in a relevant family to expire (often a “compound” or “use” patent, depending on jurisdiction).
- Earliest expiry across all patent families covering the combination product.
- Regulatory exclusivity end date (which can differ from patent dates).
Because the earliest answer changes with jurisdiction and with how “earliest” is defined, you need the country and the patent dataset (or the patent numbers / assignee) to calculate it.
What I need from you to give an exact earliest expiry date
Reply with any of the following, and I’ll compute the earliest expiry date from it:
1) Country/region (for example: US, EP, UK, Germany, etc.)
2) Whether you want earliest patent expiry only, or also regulatory exclusivity
3) Patent numbers or a link/list of the Xultophy patents you’re looking at (WO/EP/US numbers), or the patent assignee and family identifiers
If you don’t know the patent numbers, how to find them
A practical approach is to use:
- Google Patents (search “Xultophy” and/or the combination “insulin degludec liraglutide” and the relevant assignee)
- National patent registers for your target country/region
Once you have the patent list, the earliest expiry is typically the one with the earliest scheduled term end (subject to any adjustments and term extensions).
Next question to answer
Which jurisdiction do you care about (US, EU/EP, UK, or another country), and do you mean earliest patent expiry or the earliest end of exclusivity too?