Belimumab patent expiry?

Patents for belimumab aren’t defined by a single expiry date. There are multiple patent families (composition of matter, methods of use, formulations, etc.) across different jurisdictions, and expiry depends on the specific patent and country (plus any term extensions or pediatric extensions).

If you want a precise answer, please tell me:
- Which jurisdiction(s) you care about (e.g., US, EU, UK, JP, etc.)
- Which patent type you’re interested in (composition of matter for belimumab itself, use in treating lupus, manufacturing/formulation patents, etc.)

I can then look up the current status and provide a clear summary with expiry dates for the relevant patent families. If you’d like me to fetch up-to-date data now, I can search patent databases (Google Patents, Espacenet, USPTO/EP register) and list the key families and their expected expiry.