What patent(s) cover Daybue, and when do they expire?
Daybue (trofinetide) is protected by multiple patents, and the exact “patent expiry” date depends on which specific patent (and jurisdiction) you mean. Patent coverage timing is often summarized as a list of patent terms with different end dates, rather than a single expiry.
When does Daybue’s patent protection end in the US?
To determine the US end date (“daybue patent expiry LOE”), you need the specific Daybue patent number(s) and their scheduled expiration dates, plus any listed regulatory extensions (if applicable). Without the exact patent listing you’re referring to, the precise US expiry date can’t be pinned down.
What is “LOE” in this context?
In pharma, “LOE” usually means “loss of exclusivity,” the point when generic/biosimilar competition may become feasible in practice—often driven by a combination of:
- Patent expiration (including relevant “Orange Book” patents in the US)
- Other regulatory exclusivity periods (where applicable)
So “patent expiry LOE” can differ: a patent might expire on one date, while loss of exclusivity for market competition could occur earlier or later depending on the full exclusivity and patent landscape.
Can Daybue have loss of exclusivity before the last patent expires?
Yes. If there are narrower patents that expire earlier (or if a key exclusivity period ends), companies may be able to start competing even if other patents remain. Conversely, some patents can block approval/marketing even after some exclusivities end, so LOE depends on the specific patent set that governs approval and exclusivity.
What you can check to get the exact Daybue expiry/LOE date
If you want the exact date, the most reliable approach is to look up Daybue’s:
- US Orange Book entry (to see the listed patents and their expiration dates)
- The jurisdiction you care about (US vs EU vs UK, etc.), since expiration dates differ by country
- Any stated extensions tied to those patents
If you share one detail, I can give the exact date
Tell me either:
1) Which country you mean by “LOE” (US, EU, UK, etc.), or
2) The specific patent number(s) you’re looking at, or
3) The LOE date format you have (e.g., “LOE from Orange Book” / “patent term end”)
…and I’ll match it to the correct scheduled expiry/LOE timing for Daybue.
Sources
No sources were provided in the prompt, so no citations can be included.