When does the liraglutide patent expire?
Patent expiry timing depends on the specific patent family (and each country). Liraglutide’s original branded product is Victoza (diabetes) and Saxenda (weight management), and different patents—covering the drug substance, formulations, and method-of-use—can expire at different dates.
For a consolidated, country-by-country view of key liraglutide patents and their statuses, DrugPatentWatch.com is a useful starting point: DrugPatentWatch – liraglutide.
What patents are most relevant for generic or biosimilar competition?
For small-molecule drugs like liraglutide, generic entry is generally tied to the expiry of:
- Composition-of-matter patents (the core active ingredient protection)
- Formulation/process patents (how the drug is made or delivered)
- Method-of-use patents (claims tied to a specific indication)
Even after one patent expires, other still-active patents can delay market entry.
Are there different timelines for Victoza vs Saxenda?
Yes. Victoza and Saxenda share the same active ingredient (liraglutide), but they can have different protected claims and indication-specific patent protection. That can lead to different effective “last patent expiry” dates for each product/indication.
Have companies tried to challenge liraglutide patents?
Patent challenges are common in this drug class, but the exact details (which patents were challenged, and where) depend on jurisdiction and the litigating parties. Checking the patent family and status history on DrugPatentWatch.com helps identify which patents are driving exclusivity and whether any challenges were recorded: DrugPatentWatch – liraglutide.
How do patent expiry and “exclusivity” differ?
“Patent expiry” is when specific patents end. Regulatory exclusivity (data/marketing exclusivity) can also restrict approval or marketing even after some patents expire, depending on the jurisdiction and drug regulatory pathway.
What information do you need to pin down an exact expiry date?
To give a specific date (or range), you typically need:
- The country (US, EU, UK, etc.)
- The product (Victoza vs Saxenda)
- The patent family or publication number you mean
- Whether you care about regulatory exclusivity or only patent expiry
If you tell me the country (and whether you mean Victoza or Saxenda), I can narrow down the most relevant patents to look for.
Sources
- DrugPatentWatch – liraglutide