Tukysa generics — when can they launch?
Tukysa (tucatinib) · Seagen · 14 active US patents · 0 expired
Where Tukysa sits in the generic timeline
Imminent generic cliff: earliest active US patent for Tukysa expires in 2027 (~1 year 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 — 12 patents
- Composition of Matter — 2 patents
FDA U-codes carved out by Tukysa 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-code | Description |
|---|---|
U-2788 | (no description) |
U-3783 | (no description) |
Sample patent estate
Showing 6 of 14 active US patents. View full estate on the Tukysa drug page →
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This patent protects compounds that inhibit a specific type of enzyme and methods of using them to treat diseases characterized by excessive cell growth in mammals.USPTO title: N4-phenyl-quinazoline-4-amine derivatives and related compounds as ErbB type I receptor tyrosine kinase inhibitors for the treatment of hyperproliferative diseases
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This patent protects compounds that inhibit a specific type of enzyme and methods of using them to treat diseases characterized by excessive cell growth in mammals.USPTO title: N4-phenyl-quinazoline-4-amine derivatives and related compounds as ErbB type I receptor tyrosine kinase inhibitors for the treatment of hyperproliferative diseases
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This patent protects compounds that inhibit a specific type of enzyme and are useful in treating diseases characterized by excessive cell growth.USPTO title: N4-phenyl-quinazoline-4-amine derivatives and related compounds as ErbB type I receptor tyrosine kinase inhibitors for the treatment of hyperproliferative diseases
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This patent protects compounds that inhibit a specific type of enzyme and are useful in treating diseases characterized by excessive cell growth.USPTO title: N4-phenyl-quinazoline-4-amine derivatives and related compounds as ErbB type I receptor tyrosine kinase inhibitors for the treatment of hyperproliferative diseases
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This patent protects a solid dispersion of the ERB2 (HER2) inhibitor N4-(4-([1,2,4]triazolo[1,5-a]pyridin-7-yloxy)-3-methylphenyl)-N6-(4,4-dimethyl-4,5-dihydrooxazol-2-yl)quinazoline-4,6-diamine.USPTO title: Solid dispersions of a ERB2 (HER2) inhibitor
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This patent protects a solid dispersion of the ERB2 (HER2) inhibitor N4-(4-([1,2,4]triazolo[1,5-a]pyridin-7-yloxy)-3-methylphenyl)-N6-(4,4-dimethyl-4,5-dihydrooxazol-2-yl)quinazoline-4,6-diamine.USPTO title: Solid dispersions of a ERB2 (HER2) inhibitor
Sources
- FDA Orange Book — patents listed against Tukysa (NDA filed 2020)
- Tukysa drug profile — full patent estate, indications, clinical trials, pricing
- Seagen patent portfolio
- Patent cliff 2027 — 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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