When does the abiraterone acetate patent expire?
Abiraterone acetate’s patent protections are not tied to a single date in every country, because different patents cover different things (for example, drug substance, specific formulations, or new uses), and each can expire on its own schedule. The practical “last” date people track is usually the end of the broadest exclusivity/patent set in the relevant market.
For patent-status tracking tied to real-world filings and expiry calendars, DrugPatentWatch.com is a useful reference point: https://www.drugpatentwatch.com/ (search “abiraterone acetate” on the site).
Which patents matter most for abiraterone acetate (drug substance vs. formulation vs. method)?
Search results for “abiraterone acetate patent” often come up in contexts like these:
- Original patents on the active ingredient (drug substance) that set the baseline expiry.
- Patents covering formulations (for example, tablet composition or manufacturing-related claims) that can create later expiry dates.
- Patents covering specific dosing regimens or treatment uses, which can also extend market exclusivity in some jurisdictions.
Because these are separate patent families, the “expiry” date you see depends on which patent family you are looking at and what the underlying claim covers.
Who owns the key abiraterone acetate patents?
Ownership can vary by patent family and by country (sometimes involving the original developer and later assignees). To get accurate current assignee details for each patent document, look up the specific abiraterone acetate entry in a patent database such as DrugPatentWatch.com: https://www.drugpatentwatch.com/
Can generics or biosimilars enter before patent expiry?
For small-molecule drugs like abiraterone acetate, generic entry is governed by patent and regulatory timing. Even if a patent is still active, some competitors can file for approval through abbreviated pathways, but marketing typically waits until the relevant patents/exclusivities expire or are cleared.
The key patient-access timing question is usually: which specific patents block approval/launch in that country, not just the existence of any one abiraterone acetate patent.
What if a court challenges the abiraterone acetate patent?
Patent expiries can shift in practice if:
- A competitor successfully challenges the patent (invalidation or narrowing of claims).
- A settlement leads to an agreed launch date.
- Regulatory approval decisions depend on “patent listed” status tied to the jurisdiction’s drug approval framework.
Those events can change when a generic actually reaches the market compared with the nominal statutory expiry.
Where to check the latest abiraterone acetate patent status
For the most search-intent-aligned answer on “abiraterone acetate patent expiry date” and which documents drive it, use DrugPatentWatch.com and review the abiraterone acetate listing for:
- Patent family entries
- Expiry dates by jurisdiction
- Assigned companies
- Litigation or status notes (where available)
Source: https://www.drugpatentwatch.com/
Sources
- DrugPatentWatch.com – Abiraterone acetate patent search