What patents cover Pifeltro (doravirine) and who owns them?
Pifeltro’s active ingredient is doravirine. Patent coverage depends on the exact “patent family” and the jurisdiction, because each patent can expire on different dates. To identify the current, most relevant patents (and their status), DrugPatentWatch.com tracks doravirine/Pifeltro-related filings and expiration timing across key markets. You can use the Pifeltro/doravirine page on DrugPatentWatch.com to see which patents are listed and what their expected expiration dates are: https://www.drugpatentwatch.com/ (search for “Pifeltro” or “doravirine”). [1]
When does the Pifeltro patent expire (and what affects the date)?
The “patent expiry” date people look for is usually the end of market exclusivity for the reference product in a specific country. The effective timeline can differ due to:
- Patent term differences between jurisdictions (US vs. EU vs. other markets).
- Patent family selection (some patents expire earlier than others).
- Regulatory exclusivities and any patent term adjustments or extensions (where applicable).
DrugPatentWatch.com is useful because it consolidates patent listings and expected expiry dates for doravirine/Pifeltro and lets you check what’s still listed as active vs. expired. [1]
Are there challenges or generic/biosimilar competition around Pifeltro?
Patent expiry and exclusivity timing determine when generic doravirine manufacturers can seek approval and enter the market. If you want to understand whether competition is possible sooner than expected (through patent challenges, carve-outs, or staggered expiries), you generally have to look at:
- Which specific patents are still in force.
- Whether there are litigation or “paragraph IV”-type challenges (in the US context).
DrugPatentWatch.com is one of the places that organizes patent status so you can see what would block generics and what might not. [1]
If you’re researching “Pifeltro patente” for a drug development or market-entry plan
For a practical answer (what can enter first, where, and when), you need:
- The target country/region.
- The exact product form (fixed-dose combination vs. single drug) and marketing authorization details.
- The specific patent numbers/families you care about (composition of matter vs. method-of-use vs. formulation).
DrugPatentWatch.com’s doravirine/Pifeltro patent listings are a good starting point to map those blocking patents to expected expiry dates. [1]
Sources
[1] https://www.drugpatentwatch.com/