Generic entry timeline

ATAZANAVIR SULFATE generics — when can they launch?

ATAZANAVIR SULFATE (ATAZANAVIR SULFATE) · · 2 active US patents · 0 expired

Earliest patent expiry
2029-09-03
3 years remaining
Full patent estate to
2032-10-06
complete protection through 2032
FDA approval
2003

Where ATAZANAVIR SULFATE sits in the generic timeline

Imminent generic cliff: earliest active US patent for ATAZANAVIR SULFATE expires in 2029 (~3 years from today). ANDA filers are likely already preparing Paragraph IV certifications. Expect first-filer 180-day exclusivity competition imminently.

Under US Hatch-Waxman, a generic enters via an ANDA (Abbreviated New Drug Application) and may file with one of four Paragraph IV certifications attacking the brand's listed patents. If the brand sues within 45 days, a 30-month FDA approval stay is triggered. First Para IV filer typically gets 180-day market exclusivity.

Patent estate by type — active patents

Method-of-use patents only carve out specific indications; generics can launch with a "skinny label" omitting those uses. Composition-of-matter patents block the molecule itself.

  • Method of Use — 1 patent
  • Formulation — 1 patent

FDA U-codes carved out by ATAZANAVIR SULFATE patents

Method-of-use patents are listed against specific FDA Patent Use Codes ("U-codes") representing carved-out indications. Generics can launch with a label that omits these uses.

U-codeDescription
U-1279(no description)

Sample patent estate

Showing 2 of 2 active US patents. View full estate on the ATAZANAVIR SULFATE drug page →

  • US8148374 Method of Use · expires 2029-09-03
    This patent protects a compound and its therapeutic methods, including administration with at least one additional therapeutic agent.
    USPTO title: Modulators of pharmacokinetic properties of therapeutics
  • US10039718 Formulation · expires 2032-10-06
    This patent protects a composition of a pharmaceutical agent, specifically atazanavir sulfate, combined with solid carrier particles to improve processability.
    USPTO title: Use of solid carrier particles to improve the processability of a pharmaceutical agent

Sources

Patent term extensions (PTR, pediatric exclusivity), Hatch-Waxman 30-month stays, and FDA regulatory exclusivity (NCE/ODE/PED) may shift the effective generic entry date. Not legal advice.

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