When does the fidaxomicin patent expire in the UK?
A specific UK patent expiry date for fidaxomicin depends on which exact patent(s) cover the product (drug substance, formulation, and/or method-of-use), because different patents can expire at different times. The expiry date you’ll see for “fidaxomicin” in practice is usually tied to the latest-expiring relevant UK patent or to any granted extensions (for example, supplementary protection).
To give an accurate UK expiry date, the exact product and identifier are needed (for example, the brand name/dose, the manufacturer, and which UK patent number you mean).
How do you find the exact fidaxomicin UK patent expiry date?
You typically check:
- the UK patent numbers listed against the drug (often via the UK patent register or linkage to regulator-approved product listings), and
- the “latest relevant” patent for the specific authorization (not just the earliest one).
Then you look up each patent’s:
- filing/grant details and
- term/any extensions that change the effective expiry.
Are there different UK expiries for different fidaxomicin products?
Yes. Even within the same active ingredient, UK expiry can differ based on what’s being protected:
- the active substance patent,
- a specific formulation (for example, tablet/form),
- dosing regimens or methods of use,
- and whether there are any regulatory exclusivity effects or protection extensions.
So “fidaxomicin expiry” can be ambiguous unless you anchor it to the precise patent or the specific marketed product.
Does the UK expiry match the EU/US timeline?
Not necessarily. Patent filing dates, patent term calculations, and any extensions (and how they are applied) differ by jurisdiction. Even if patents look similar across regions, the effective UK expiry can move relative to EU or US timelines.
What do you need to get a precise UK expiry date from me?
Reply with any one of the following, and I can pinpoint the relevant UK expiry date(s):
- the fidaxomicin brand name sold in the UK (and strength), or
- the UK patent number(s) you’re looking at, or
- the company/MAH (marketing authorization holder) and the product name on the UK register.
What’s the practical “expiry date” people usually care about?
For generic/biosimilar entry planning, people usually track the later of:
- the last-expiring relevant UK patent covering the authorization, and
- any granted extensions affecting that patent’s effective end date.
Because patent thickets can include multiple patents, the “effective” date may be later than the first patent to expire.
Sources
I can’t cite any sources here because no patent registry or document details were provided. If you share the UK patent number(s) or the exact product/brand name, I can respond with the precise UK expiry dates and cite the underlying UK records.