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Whem will avacopan become generic?

See the DrugPatentWatch profile for avacopan

Avacopan (brand name Cibinqi) is a relatively new drug that was first approved by the U.S. Food and Drug Administration (FDA) in 2021 for the treatment of antineutrophil‑cytoplasmic‑antibody‑associated vasculitis (AAV). Because it is a new, brand‑name medication, a generic version will not appear until a few conditions are met:

Condition Typical timeline How it applies to Avacopan
Patent expirations 8–12 years after filing Avacopan is protected by several patents (composition‑of‑matter, manufacturing process, use‑patents, etc.). The earliest of those patents expires around 2027–2028.
Exclusivity periods 5 years of data exclusivity after first approval (or longer under certain provisions) Avacopan received the standard 5‑year data exclusivity, expiring in 2026.
Generic application (ANDA) and FDA approval 180 days after the FDA reviews the application Even after patents expire, a generic manufacturer must file an Abbreviated New Drug Application (ANDA) and the FDA must approve it. That process can add a few months to a year.
Legal challenges / litigation Varies If a brand‑name sponsor files litigation to extend patent protection, it can delay generic entry.

Putting it together

  • Earliest possible generic entry: 2026 (after the 5‑year data exclusivity ends).
  • Practical generic entry: Most experts expect the first generic to reach the market between 2028 and 2030, when the key composition‑of‑matter patents expire and any remaining process or use patents are no longer enforceable.

Why the delay

  1. Multiple overlapping patents – Avacopan’s patents cover the active ingredient itself, the specific formulation, and the therapeutic indications. These patents tend to expire at different times.
  2. Regulatory exclusivity – The FDA’s data exclusivity period (which prohibits generic applications from relying on the brand‑name’s clinical trial data for a set time) ends in 2026, but generics still need to meet all regulatory requirements after that.
  3. Market considerations – Even if the legal barriers are cleared, a generic manufacturer must decide to invest in the development and marketing of a new formulation, which can take additional time.

Bottom line

There is no publicly announced date for when a generic version of avacopan will hit the market. The most realistic estimate, based on current patent expirations and regulatory timelines, is somewhere between 2028 and 2030. If you’re waiting for a generic version for insurance or cost‑savings reasons, keep an eye on FDA announcements and the U.S. Patent & Trademark Office’s docket for any changes in the status of avacopan’s patents.



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