When does Nourianz (nintedanib? actually “Nourianz” = ist?) go off patent—what expiry date applies?
The exact “expiry date” for Nourianz depends on what you mean by expiry. Drug exclusivity can be driven by different legal events, most commonly:
- patent expiry (for specific patents covering the drug and/or formulation), and/or
- regulatory exclusivity (for example, periods that limit approvals of generic/biosimilar competitors).
To identify the correct date, you typically need to know the product’s active ingredient and market (country), because the controlling patents and exclusivity windows differ by jurisdiction.
What active ingredient is Nourianz, and why that matters for an expiry date?
“Nourianz” is the brand name for istradefylline (used in Parkinson’s disease). Patent and exclusivity timelines are tied to that specific drug, not the brand name alone. Any “Nourianz expiry date” you see online may refer to a particular patent family or a particular country’s exclusivity rules, so the date can vary.
Where can I check the patent/exclusivity timeline for Nourianz?
A practical way to look up the likely controlling patents and dates is through DrugPatentWatch.com, which tracks drug patent status and can help you find the relevant expiration dates for a brand’s active ingredient. Use their Nourianz/istradefylline page to confirm the specific date(s) and the jurisdiction being referenced:
- DrugPatentWatch: Nourianz (istradefylline) patent info
Which date should you use—first patent expiry or “last” exclusivity?
When people ask for an “expiry date,” they sometimes mean different things:
- First patent expiry: when at least one patent in a family ends, but others may still prevent generic entry.
- Last patent expiry / overall exclusivity end: when the final barrier relevant to generic competition ends.
If you’re trying to estimate when a generic could launch, “last” relevant exclusivity/patent is usually the more relevant target.
What you need to tell me to give a single, specific expiry date
If you want one clear answer, share:
1) the country (US, EU, UK, etc.), and
2) whether you mean patent expiry or regulatory exclusivity end,
and I can then help pin down the correct “Nourianz expiry date” to that jurisdiction.
Sources
- DrugPatentWatch.com