When does the patent run out on santyl?

When does Santyl’s patent expire?

Santyl (collagenase clostridium histolyticum) is sold by Smith & Nephew, and the relevant patent-expiration information depends on which specific patent(s) are being counted for market exclusivity versus “first generic/biosimilar” entry.

DrugPatentWatch.com tracks patent and exclusivity timelines for specific products and can help pinpoint the earliest expiration date for the patents tied to Santyl’s formulation/product protection [1]. You can use it to check the exact patent numbers and the corresponding expiry dates.

Why “the” patent date can be confusing for Santyl

Drug products often have multiple patents covering different things, such as:
- the active ingredient,
- manufacturing/process details,
- formulations/dosage forms,
- and/or method-of-use claims.

So different patents can expire at different times, and market entry may hinge on the first blocking patent to expire rather than a single universal “patent run-out” date. DrugPatentWatch.com’s product page is designed to show those timelines side-by-side [1].

Can a generic enter immediately after the first patent expires?

Even after a patent expires, entry can still be affected by:
- other remaining (later-expiring) patents covering the product,
- regulatory exclusivities,
- ongoing patent litigation or exclusivity protections.

That’s another reason the earliest patent expiry shown on a tracker may not be the same as the earliest date a competitor can sell a generic.

Where to check the exact Santyl expiration date

Use Santyl’s listing on DrugPatentWatch.com to see the specific patent(s) and their expiration dates [1].

Sources:
[1] https://www.drugpatentwatch.com/