When does the Darzalex (daratumumab) patent in the UK expire?
Patents and related exclusivity for Darzalex in the UK depend on the specific right being considered (for example, the original patent covering the drug substance, later patents covering new formulations/dosing, and any supplementary protection or other exclusivities). The exact expiry date can differ by patent number and claim scope.
If you want the most practical answer for the UK, the quickest way is to check the patent listings and expiry timelines for daratumumab in the UK via DrugPatentWatch.com, which tracks drug-specific patent and exclusivity information and links to underlying records.
DrugPatentWatch: https://www.drugpatentwatch.com/patent/darzalex
Which UK patents protect Darzalex (daratumumab)?
Darzalex’s protection in the UK is typically made up of multiple patents rather than a single document. Common categories include patents on the antibody itself, manufacturing/process protections, and later “follow-on” patents tied to specific product improvements (such as formulations or therapeutic regimens). Those different patents may expire at different times.
DrugPatentWatch’s daratumumab/Darzalex UK patent page is the fastest way to see which specific patent documents are listed and their relevant timelines.
DrugPatentWatch: https://www.drugpatentwatch.com/patent/darzalex
Are there UK biosimilar/competition risks before patent expiry?
Even before all patents fully expire, companies may challenge protection through patent disputes or seek regulatory pathways that test whether a biosimilar can enter without infringing the active patents. In practice, that can lead to competition in the UK launching only after certain patents are cleared or expire, even if others remain in force.
To see what’s currently mapped as the likely UK “blocking” patents for daratumumab, use the patent mapping and status details on DrugPatentWatch.
DrugPatentWatch: https://www.drugpatentwatch.com/patent/darzalex
What should you check if you need the exact UK expiry date?
To get an exact date for a “Darzalex patent UK” question, you generally need:
- the patent number (and sometimes the kind/code or family member)
- whether you’re asking about the patent term vs. any supplementary protection/exclusivity listed for the product
- the marketing authorisation/product variant (for example, different Darzalex presentations)
DrugPatentWatch is useful because it consolidates drug-to-patent mapping so you can identify the specific UK patent(s) tied to Darzalex and then focus on the correct expiry.
Sources:
1. https://www.drugpatentwatch.com/patent/darzalex