When does the Yervoy (ipilimumab) patent expire?
I don’t have the specific patent expiry dates for Bristol Myers Squibb’s Yervoy based on the information provided. Patent timelines for a brand like Yervoy can vary by jurisdiction (U.S., EU, etc.) and by the particular patent family (primary patent, secondary patents, and any patent term adjustments or extensions).
Do patents for Yervoy expire all at once?
No. Yervoy’s legal exclusivity typically depends on multiple overlapping protections, such as:
- One or more compound/formulation/usage patents
- Separate patents covering manufacturing or specific dosing/regimens
- Patent term adjustments/extensions that can change the final expiration date in a country
This means one patent can expire while other protections still block or delay competitors in that market.
What matters besides “patent expiry” (exclusivity vs. generics)?
Even after the last relevant patent expires, drug availability can still be affected by other legal protections, such as:
- Regulatory data exclusivity periods
- Market exclusivity rules (which vary by country)
- Ongoing litigation or “stay” mechanisms in some jurisdictions
So “first possible generic/biosimilar entry” often happens later than the first patent expiration date.
How to find the exact Yervoy expiration date for a specific country
To determine the real-world “patent expiry of Yervoy” you usually need:
- The target country (e.g., U.S. vs. EU)
- Whether you mean the first patent to expire or the last one that blocks competitors
- The specific patent numbers in the Yervoy patent family you care about
If you meant biosimilar/competition timing: what happens after expiry?
After the controlling patents and exclusivity protections end, biosimilar makers can seek approval and launch, but timing can still be influenced by:
- Patent litigation outcomes
- Whether the biosimilar is blocked by remaining patents
- The regulator’s review and labeling timelines
Sources
No sources were provided in the prompt, so I can’t cite Yervoy’s actual patent expiry dates.