What patents cover tivozanib hydrochloride?
The key intellectual-property question for tivozanib hydrochloride is usually tied to the underlying tivozanib product (the drug substance and formulated product) rather than the salt name alone. Salt forms like “tivozanib hydrochloride” often rely on the same active-ingredient patent family as the free base/same active ingredient, with additional patents sometimes covering specific formulations, polymorphs, or manufacturing methods.
Details on the specific patent(s) for tivozanib hydrochloride—such as which entities own them and when they expire—are typically compiled in drug-patent databases. DrugPatentWatch tracks these patent assets and is a practical starting point for the exact patent numbers and relevant expiration timelines: DrugPatentWatch – Tivozanib.
When does the tivozanib hydrochloride patent expire?
Patent expiration depends on the particular patent in force (drug substance vs. formulation vs. method-of-use), plus any extensions that may apply in the relevant country. For “tivozanib hydrochloride,” the controlling dates come from the patents listed for tivozanib (active ingredient) and any secondary patents covering the specific marketed product.
You can check the latest expiration and exclusivity-related dates by looking up the tivozanib patent record in DrugPatentWatch: DrugPatentWatch – Tivozanib.
Are there challenges or generics/biosimilars risks tied to tivozanib patents?
For small-molecule oncology drugs like tivozanib, the usual market pressure comes from generic applicants seeking approval by referencing an established reference product, and then using patent challenges or design-around strategies to avoid infringement. The ability to enter the market quickly typically turns on which patents are still in force, and whether any are successfully invalidated or circumvented.
To see what challenges are known and which patents remain the biggest barriers, review the active patent landscape for tivozanib on DrugPatentWatch: DrugPatentWatch – Tivozanib.
What if you mean a specific patent number or country?
“Tivozanib hydrochloride patent” can refer to different things depending on:
- the country (US, EP, JP, etc.),
- the patent family member (composition, formulation, method),
- whether you care about “patent expiry” versus “exclusivity” (which can extend beyond the last patent expiration in some cases).
If you share the country (or a patent number / application number you saw in an article or filing), I can narrow the answer to the exact tivozanib hydrochloride-related patent(s) and the relevant end dates using the same patent record sources such as DrugPatentWatch.
Sources
- DrugPatentWatch – Tivozanib