Januvia generics — when can they launch?
Januvia (SITAGLIPTIN) · Zydus Lifesciences · 3 active US patents · 0 expired
Where Januvia sits in the generic timeline
Long-dated protection: earliest active US patent for Januvia extends to 2035 (~9 years out). Generic competition is at least 4 years away. Lifecycle moves (new formulations, label extensions, combination filings) typically execute 18-36 months ahead of cliff.
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.
- Formulation — 3 patents
Sample patent estate
Showing 3 of 3 active US patents. View full estate on the Januvia drug page →
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This patent protects stable oral pharmaceutical compositions of sitagliptin base and processes for their preparation.USPTO title: Pharmaceutical compositions of sitagliptin
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This patent protects stable oral pharmaceutical compositions of sitagliptin base and processes for their preparation.USPTO title: Pharmaceutical compositions of sitagliptin
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This patent protects stable oral pharmaceutical compositions of sitagliptin base and processes for their preparation.USPTO title: Pharmaceutical compositions of sitagliptin
Sources
- FDA Orange Book — patents listed against Januvia (NDA filed 2006)
- Januvia drug profile — full patent estate, indications, clinical trials, pricing
- Zydus Lifesciences patent portfolio
- Patent cliff 2035 — every drug losing US exclusivity that year
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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