RESMETIROM generics — when can they launch?
RESMETIROM (RESMETIROM) · · 18 active US patents · 0 expired
Where RESMETIROM sits in the generic timeline
All listed Orange Book patents for RESMETIROM have expired. Generic entry is permitted, and ANDA filers can launch without patent infringement risk. Hatch-Waxman exclusivity (NCE/ODE/PED) may still apply if recently approved.
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 — 6 patents
FDA U-codes carved out by RESMETIROM 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-3861 | (no description) |
Sample patent estate
Showing 6 of 18 active US patents. View full estate on the RESMETIROM drug page →
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This patent protects compounds of the formula (I) and their pharmaceutically acceptable salts, which are useful for treating various diseases including obesity and diabetes.USPTO title: Thyroid hormone analogs
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This patent protects compounds of the formula (I) and their pharmaceutically acceptable salts, which are useful for treating various diseases including obesity and diabetes.USPTO title: Thyroid hormone analogs
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This patent protects compounds of the formula (I) and their pharmaceutically acceptable salts, which are useful for treating various diseases including obesity and diabetes.USPTO title: Thyroid hormone analogs
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This patent protects methods of synthesizing thyroid hormone analogs and polymorphs thereof, including a method for treating resistance to thyroid hormone.USPTO title: Methods of synthesizing thyroid hormone analogs and polymorphs thereof
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This patent protects methods for synthesizing pyridazinone compounds, including thyroid hormone analogs and their prodrugs, and their morphic forms.USPTO title: Method of synthesizing thyroid hormone analogs and polymorphs thereof
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This patent protects methods for synthesizing pyridazinone compounds, including thyroid hormone analogs and their prodrugs, and their morphic forms.USPTO title: Method of synthesizing thyroid hormone analogs and polymorphs thereof
Sources
- FDA Orange Book — patents listed against RESMETIROM (NDA filed 2024)
- RESMETIROM drug profile — full patent estate, indications, clinical trials, pricing
- Patent cliff 2026 — 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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