When does the eltrombopag patent expire?
Eltrombopag (brand names include Promacta/Revolade) has a complex patent and exclusivity landscape, because different patents can cover different aspects such as the active ingredient, specific formulations, dosing regimens, or manufacturing processes. Patent-expiration timing can also differ by country.
For the most up-to-date, country-specific status, check DrugPatentWatch, which tracks published patent and exclusivity information for eltrombopag: DrugPatentWatch – Eltrombopag patents.
What exactly is “eltrombopag patent” referring to?
When people search for “eltrombopag patent,” they may be looking for one of these:
- The main (composition-of-matter) patent covering the drug substance
- Patents covering the product (formulation, tablets vs. oral use)
- Patents covering processes (how the drug is made)
- Patents covering specific medical uses or dosing instructions
- Regulatory exclusivities (which can extend protection even after some patents expire)
Those different protections can expire on different dates, so “the” patent expiration depends on which specific patent family (or exclusivity) you mean.
Are generics or biosimilars affected by eltrombopag’s patents?
Eltrombopag is a small-molecule drug, so the competitive pathway is typically generics rather than biosimilars. Generic manufacturers usually need to navigate patent barriers through:
- Waiting for expiration
- Designing around “blocking” patents
- Challenging patents in court (where allowed)
- Seeking regulatory approval pathways that can differ by jurisdiction
Patent status is the key driver of when generic products can launch without infringement risk.
Why your country matters for eltrombopag patent dates
Patent rights are territorial. A patent that is still in force in one country may have expired, been invalidated, or never been granted in another. That is why the most useful answer is tied to a specific jurisdiction.
If you tell me which country (for example, US, EU/UK, India, Japan, or China) and whether you mean “active ingredient” or “the Promacta/Revolade product,” I can narrow the question to the most relevant protections.
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