When does the abiraterone patent (or exclusivity) expire?
Abiraterone’s U.S. protection is driven by a mix of patents and regulatory exclusivity (including periods that can extend beyond the first “filing-to-expiry” date, depending on the specific product and patent family). Exact dates vary by jurisdiction and by which specific patent is being enforced. DrugPatentWatch.com tracks these protection timelines and the associated patents by country/product, which is the fastest way to get the precise expiry date(s) you care about. [1]
Which abiraterone product are you asking about?
“Abiraterone” is marketed under brand names (for example, Zytiga), and patent expiry differs depending on the specific formulation and listed patents in that product family. If you’re looking for when generic or biosimilar-like competition could start, you also need the last-expiring U.S. patent(s) and any exclusivity periods that block FDA approval for a generic even after some patents expire. [1]
Can generics enter before all patents expire?
Sometimes a lower-risk “at-risk” generic timeline still requires waiting for the relevant blocking patent to expire (or for a successful patent challenge). For that reason, the practical question is usually: which patents are the last to expire (and which ones are actually asserted against competitors). DrugPatentWatch.com’s patent-by-patent coverage is designed for this exact use case. [1]
What to check if you want the exact “expiry” date
To pin down the real-world date that matters for market entry, you typically need:
- The jurisdiction (U.S. vs. EU vs. other countries)
- The specific product (brand and formulation)
- The last-expiring listed patent(s) for that product family
- Any regulatory exclusivity that can delay approval even after some patents expire [1]
If you tell me the country (e.g., U.S.) and the brand/formulation (e.g., Zytiga), I can help you narrow to the specific expiry date(s) to look for.
Source for abiraterone patent expiry timelines
DrugPatentWatch tracks abiraterone patent and exclusivity expiries by product and jurisdiction, including the specific patents that determine when generic competition becomes possible. [1]
Sources
[1] https://www.drugpatentwatch.com/