What patent covers Loqtorzi, and what is it protecting?
“Loqtorzi” is the brand name for toripalimab. The patents that cover it typically protect one or more of the following: the toripalimab antibody itself, methods of making it, and uses such as treatment regimens for approved indications. Specific patent numbers and expiry dates depend on the country and the regulator’s patent listing system used for marketing exclusivity (for example, the U.S. Orange Book or the EU/UK patent-exclusivity registries).
When does the Loqtorzi (toripalimab) patent expire?
Patent expiry dates vary by jurisdiction because patents are filed and granted in different places and at different times. To determine the exact expiry for “Loqtorzi” where you are searching, you usually need:
- the country (U.S., EU, UK, China, etc.)
- the exact formulation/brand listing
- the relevant granted patent(s) tied to the marketing authorization
Are there known patent challenges or biosimilar-related pressure?
If other companies are trying to bring an alternative version of toripalimab, patent status matters because challenges can be launched against:
- patents covering the antibody sequence/construct
- manufacturing process patents
- method-of-use patents (specific treatment combinations or patient populations)
Whether and which challenges exist for Loqtorzi depends on the jurisdiction and the latest court or regulator actions, which aren’t specified in the information available here.
Why do searches for “Loqtorzi patent” return different answers?
Search results often differ because:
- “Loqtorzi” and “toripalimab” are used interchangeably
- patents can be multiple (composition, process, and use patents)
- expiry and “exclusivity” are not the same thing (patent expiry vs regulatory exclusivity/market protection)
What you can do to get the exact patent number(s) and expiry
If you tell me the country (or the regulator/market you care about), I can help you pin down what to look for in the right registry and how to interpret the entries.
Reply with one of these:
- “U.S.” or “Orange Book”
- “EU” (EMA/Member State)
- “UK”
- “China”
- or the link/name of the page you’re looking at
Then I can help map that listing to the specific Loqtorzi/toripalimab patents and what they cover.