Azacitidine (vidaza) patent expiration date?

Patent expiration dates for azacitidine (Vidaza) depend on the jurisdiction and which patent family you’re looking at (active ingredient composition vs. formulation vs. method of use).

- In many major markets (US and EU), the core patent covering the active ingredient azacitidine generally expired around 2012–2014.
- However, there can be additional patents on formulations, salts, methods of use, or manufacturing processes that extend protection in some jurisdictions.
- Regulatory data exclusivity (e.g., pediatric extensions or other market protections) can also delay generic entry even after patents expire.

If you want a precise date, tell me:
- the jurisdiction(s) you care about (e.g., US, EU, UK, Japan, etc.)
- whether you want the expiration date for the active ingredient patent only, or also for any formulation/use patents

I can then look up the exact patent families and provide the specific expiration dates. I can also guide you to sources like Google Patents, USPTO Patent Center, Espacenet, and the FDA Orange Book.