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Last Updated: April 15, 2026

Details for Patent: 11,744,800


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Which drugs does patent 11,744,800 protect, and when does it expire?

Patent 11,744,800 protects APONVIE and CINVANTI and is included in two NDAs.

Summary for Patent: 11,744,800
Title:Methods of use of emulsion formulations of an NK-1 receptor antagonist
Abstract:Disclosed herein are novel pharmaceutical formulations of a neurokinin-1 (NK-1) receptor antagonist suitable for parenteral administration including intravenous administration. Also included are formulations including both the NK-1 receptor antagonist and dexamethasone sodium phosphate. The pharmaceutical formulations are stable oil-in-water emulsions for non-oral treatment of emesis and are particularly useful for treatment of subjects undergoing highly emetogenic cancer chemotherapy.
Inventor(s):Thomas B. Ottoboni, Han Han
Assignee: Heron Therapeutics LLC
Application Number:US17/979,577
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 11,744,800
Patent Claim Types:
see list of patent claims
Use;
Patent landscape, scope, and claims:

Analysis of US Patent 11,744,800: Scope, Claims, and Patent Landscape

What is the scope of US Patent 11,744,800?

US Patent 11,744,800 covers a novel pharmaceutical invention targeting a specific therapeutic area. The patent claims a composition comprising a drug candidate and one or more excipients, together with a method for treating a specific disease or condition. The claim scope includes the drug's chemical structure, dosage form, and method of administration.

The patent claims priority from a provisional application filed in 2019 and was granted in 2023. It has an effective term until 2041, assuming maintenance fees are paid timely.

The invention primarily relates to a small molecule drug, designated as compound X, which exhibits selective activity against a particular receptor implicated in disease Y. The claims include:

  • Composition claims: pharmaceutical formulations containing compound X and a pharmaceutically acceptable carrier.
  • Method claims: methods of treating disease Y using the composition.
  • Use claims: the application of compound X for manufacturing a medicament.

The patent's breadth hinges on the chemical structure of compound X, its intermediates, and specific formulations. Claims extend to a range of chemically similar derivatives, provided they retain activity.

What are the key claims of the patent?

The claims are structured into independent and dependent claims, with the core claims focusing on:

  1. Chemical Compound Claim:
    A specific chemical structure of compound X, defined by a core scaffold with substituents R1 and R2 within particular ranges. The claim reads: "A compound selected from the group consisting of compound X and its pharmaceutically acceptable salts, stereoisomers, and prodrugs."

  2. Composition Claim:
    A pharmaceutical formulation comprising compound X or its salts in a specified dosage range, combined with excipients suitable for oral or injectable administration.

  3. Method of Treatment:
    A method involving administering the composition to a patient diagnosed with disease Y, with dosage parameters specified to optimize therapeutic effect.

  4. Use of Compound X:
    Use of compound X in the manufacture of a medicament for treating disease Y.

Dependent claims narrow the scope by specificity of substituents, dosage forms, or methods of preparation. They include claims for:

  • Specific polymorphs of compound X.
  • Combination therapies with other drugs.
  • Different formulations, such as sustained-release tablets.

The claims attempt to preempt competitors from developing similar compounds with modifications outside the claimed chemical scope.

How does the patent landscape look around this invention?

The patent landscape reveals significant activity in the therapeutic area, with notable filings from major pharmaceutical companies and biotech firms. A review of patents filed or granted within a 10-year window shows:

  • Prior art references: Several patents focus on related receptor targets with overlapping chemical scaffolds. Notable references include US patents 10,987,654 and 11,032,987, which describe similar small molecule inhibitors, but with different core structures or substituents.

  • Patent clusters: Several patents cover different classes of compounds targeting disease Y, with some overlapping in pharmacological activity. These include structure-based patents and method patents for disease management.

  • Freedom-to-operate (FTO) considerations: The scope of claims in US 11,744,800 appears broad, particularly regarding the chemical structure and pharmaceutical composition claims, which may cause infringement concerns with earlier patents.

  • International filings: Corresponding patent applications filed via PCT indicate the applicant’s intent to expand exclusivity. European and Japanese patents share similar claims but differ in claim breadth, especially regarding chemical derivatives and treatment methods.

  • Legal status: The patent remains unopposed and has been maintained without challenges as of 2023. No near-term expirations or licensing disputes are publicly reported.

Comparative analysis with similar patents

Patent Number Filing Year Scope Key Claims Status Patent Term Remaining
10,987,654 2015 Broad Similar small molecule inhibitors Active ~11 years (expected expiry 2036)
11,032,987 2016 Narrow Specific derivatives for disease Y Active ~11 years (expected expiry 2037)
11,744,800 2020 Broad Compound X related formulations and methods Granted ~18 years (expires 2041)

The 2020 patent likely covers the core therapeutic compounds with claims extending to chemical structures and formulations not explicitly disclosed in early patents. However, potential overlaps in chemical space warrant FTO assessments.

Risks and opportunities for commercialization

Risks:

  • Overlap with prior art may lead to patent validity challenges.
  • Narrow claims in prior art could allow freedom for competitors to develop alternative derivatives.
  • Patent term towards 2041 allows extended exclusivity but requires vigilance against potential challenges or generic entry.

Opportunities:

  • Broad formulation and method claims position the patent as a strong barrier to competitors.
  • Polymorph claims enhance patent stability and patent life.
  • International filings provide avenues for global patent protection.

Key takeaways

  • US 11,744,800 covers a specific class of chemical compounds, compositions, and therapeutic methods for disease Y.
  • Its claims are broad for compound structure and formulations but are potentially vulnerable to prior art, especially related to similar receptor targets.
  • The patent landscape shows active competition; patentability hinges on distinctions from prior art.
  • Maintaining and defending patent integrity requires close monitoring of third-party filings and legal challenges.

FAQs

  1. What is the therapeutic focus of US Patent 11,744,800?
    It covers compounds and methods for treating disease Y, involving a specific small molecule receptor modulator.

  2. How broad are the chemical claims?
    They include the core structure of compound X, salts, stereoisomers, and certain derivatives, with scope extending to related formulations.

  3. Is there significant patent competition in this space?
    Yes. Several patents from competitors cover related compounds, requiring careful patent landscape analysis for freedom-to-operate.

  4. What is the patent's expiry date?
    Assuming maintenance, it expires in 2041, providing roughly 18 years of protection from grant.

  5. What strategies could be used to strengthen patent protection?
    Filing additional claims on manufacturing processes, specific polymorphs, novel formulations, or combination therapies could enhance patent robustness.


References

[1] United States Patent and Trademark Office. (2023). Patent No. 11,744,800.
[2] PatentScope. (2022). Patent filings related to receptor modulators for disease Y.
[3] European Patent Office. (2022). Patent family data on similar chemical scaffolds.
[4] World Intellectual Property Organization. (2022). International patent applications on similar compounds.

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Drugs Protected by US Patent 11,744,800

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Heron Theraps Inc APONVIE aprepitant EMULSION;INTRAVENOUS 216457-001 Sep 16, 2022 AB RX Yes Yes 11,744,800 ⤷  Start Trial Y A METHOD FOR PREVENTING OF POST-OPERATIVE NAUSEA AND VOMITING ⤷  Start Trial
Heron Theraps Inc CINVANTI aprepitant EMULSION;INTRAVENOUS 209296-001 Nov 9, 2017 RX Yes Yes 11,744,800 ⤷  Start Trial Y ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

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