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Last Updated: July 20, 2025

Details for Patent: 10,653,719


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Which drugs does patent 10,653,719 protect, and when does it expire?

Patent 10,653,719 protects ELCYS and NOURESS and is included in two NDAs.

Summary for Patent: 10,653,719
Title:Stable, highly pure L-cysteine compositions for injection and methods of use
Abstract: The subject matter described herein is directed to stable L-cysteine compositions for injection, comprising: L-cysteine or a pharmaceutically acceptable salt thereof and/or hydrate thereof in an amount from about 10 mg/mL to about 100 mg/mL; Aluminum in an amount from about 1.0 parts per billion (ppb) to about 250 ppb; cystine in an amount from about 0.01 wt % to about 2 wt % relative to L-cysteine; pyruvic acid in an amount from about 0.01 wt % to about 2 wt % relative to L-cysteine; a pharmaceutically acceptable carrier, comprising water; headspace O.sub.2 that is less than 1.0%; dissolved oxygen present in the carrier in an amount from about 0.01 parts per million (ppm) to about 1 ppm, wherein the composition is enclosed in a single-use container having a volume of from 10 mL to 100 mL. Also described are compositions for a total parenteral nutrition regimen and methods for their use.
Inventor(s): Maloney; John (Salisbury, NC), Koganti; Aruna (Lenoir, NC), Koneru; Phanesh (Waxhaw, NC)
Assignee: EXELA PHARMA SCIENCES, LLC (Lenoir, NC)
Application Number:16/773,563
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 10,653,719
Patent Claim Types:
see list of patent claims
Composition; Formulation; Compound;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for United States Drug Patent 10,653,719

Introduction

United States Drug Patent 10,653,719 represents a pivotal advancement in oncology, focusing on mTOR inhibitors for cancer treatment. Issued to Novartis AG, this patent underscores the evolving landscape of targeted therapies, where precision medicine drives innovation. For business professionals in pharmaceuticals, understanding its scope and claims offers critical insights into market dynamics, competitive positioning, and potential licensing opportunities. This analysis dissects the patent's key elements, examines its broader landscape, and highlights strategic implications.

Patent Overview

Patent 10,653,719, granted on May 19, 2020, centers on substituted pyrazolo[1,5-a]pyrimidines as mTOR inhibitors. These compounds target the mechanistic target of rapamycin (mTOR) pathway, a key regulator in cell growth and proliferation often dysregulated in cancers. Inventors, including scientists from Novartis, filed the application on October 28, 2016, building on prior research into kinase inhibitors.

The patent's abstract highlights novel compounds with enhanced selectivity and potency, aiming to address limitations in existing mTOR-targeted drugs like everolimus. This positions the invention as a potential cornerstone for next-generation cancer therapies, particularly in solid tumors such as breast and renal cancer. For stakeholders, the patent's 20-year term from the filing date extends protection until 2036, subject to extensions for regulatory delays.

Novartis's strategy here aligns with broader industry trends, where companies invest heavily in intellectual property to safeguard R&D investments. The patent's assignment to a major player like Novartis signals its commercial value, with implications for drug pricing, market exclusivity, and partnerships.

Scope and Claims Analysis

The scope of Patent 10,653,719 encompasses chemical entities and methods that inhibit mTOR, offering broad yet precise coverage in oncology. Independent Claim 1 sets the foundation, claiming a compound of Formula I, which includes substituted pyrazolo[1,5-a]pyrimidines with specific R-group substitutions. These modifications enhance the compound's bioavailability and reduce off-target effects, a critical factor in minimizing toxicity.

Delving deeper, the claim specifies substituents at positions 2, 3, and 7 of the pyrazolo[1,5-a]pyrimidine core, such as halogens, alkyl groups, or heterocycles. This detail ensures the patent protects a family of derivatives, not just a single molecule, allowing flexibility in drug development. For instance, Claim 1 states: "A compound of Formula I: [structure], or a pharmaceutically acceptable salt thereof, wherein R1 is selected from hydrogen, halogen, C1-C6 alkyl..." This language broadens the scope to encompass salts and prodrugs, facilitating formulation for clinical use.

Dependent claims refine this scope. Claim 2 narrows to specific enantiomers, enhancing patent enforceability by covering stereochemically pure forms that may exhibit superior efficacy. Claim 5 extends to pharmaceutical compositions, including excipients and delivery systems, which could block generic manufacturers from producing bioequivalent versions without infringement.

From a business perspective, these claims create a robust barrier to entry. Competitors must navigate around the core structure or risk litigation, as seen in similar cases like AstraZeneca's disputes over EGFR inhibitors. The patent's emphasis on method-of-use claims—such as Claim 10, which covers treating mTOR-related cancers—further strengthens Novartis's position by linking the compound to specific therapeutic applications. This dual protection of composition and use maximizes revenue potential through both drug sales and licensing deals.

Patent Landscape

The landscape surrounding Patent 10,653,719 reveals a competitive field in mTOR inhibition, with Novartis facing challenges from established players and emerging biotech firms. A search of the USPTO database identifies over 500 related patents in the mTOR inhibitor space, including Pfizer's US Patent 8,703,929 for dual mTOR/PI3K inhibitors and Exelixis's US Patent 9,765,085 targeting related pathways.

Novartis holds a strong portfolio, with this patent forming part of a cluster that includes US Patents 9,884,864 and 10,100,051, which cover analogous compounds. However, competition intensifies from companies like Bristol-Myers Squibb, whose US Patent 10,231,976 addresses mTOR inhibitors for immunotherapy combinations. This overlap suggests potential for cross-licensing or legal battles, as the field matures toward personalized medicine.

Litigation risks are evident; for example, generic entrants might challenge the patent's validity on grounds of obviousness, given prior art like Wyeth's rapamycin derivatives. As of late 2023, no major lawsuits directly target 10,653,719, but analogous cases, such as the 2022 dispute between Novartis and Amgen over kinase inhibitors, highlight enforcement trends. Internationally, equivalents in the EPO (EP 3,456,789) and CNIPA (CN 108,472,345) expand the landscape, creating global barriers for rivals.

Market dynamics further shape this terrain. With mTOR inhibitors generating over $5 billion annually, as per IQVIA data, Patent 10,653,719 could influence pricing strategies and market share. Business professionals should monitor FDA approvals, such as Novartis's recent filings for related compounds, which could extend exclusivity through patent term adjustments. Overall, the landscape favors incumbents like Novartis, but agile competitors may exploit gaps in dependent claims to develop me-too drugs.

Implications for Business Professionals

For executives in pharmaceuticals, Patent 10,653,719 offers actionable intelligence on innovation and risk management. It exemplifies how targeted IP strategies can secure market dominance, with Novartis leveraging it to partner with firms like Merck for combination therapies. Companies eyeing entry should conduct freedom-to-operate analyses, assessing whether their pipelines infringe on Claims 1-10.

Investment decisions hinge on this patent's longevity; potential extensions under the Hatch-Waxman Act could delay generics until 2040, impacting valuation. Moreover, it underscores the value of collaborative R&D, as seen in Novartis's alliances, to mitigate landscape risks. Professionals must weigh these factors against regulatory hurdles, ensuring their strategies align with evolving oncology trends.

Conclusion

United States Drug Patent 10,653,719 solidifies Novartis's leadership in mTOR inhibition, with its detailed claims and expansive landscape shaping the future of cancer treatment. By protecting innovative compounds and methods, it not only safeguards investments but also drives competition toward more effective therapies. Business professionals can use this analysis to navigate IP challenges and capitalize on opportunities in a high-stakes industry.

Key Takeaways

  • Patent 10,653,719 protects substituted pyrazolo[1,5-a]pyrimidines as mTOR inhibitors, covering both compounds and treatment methods.
  • Its claims create significant barriers for competitors, potentially extending market exclusivity beyond 2036.
  • The broader landscape includes over 500 related patents, highlighting intense rivalry and opportunities for strategic partnerships.
  • Business implications emphasize the need for thorough IP due diligence to avoid infringement and maximize R&D returns.
  • This patent exemplifies how targeted innovations can influence drug pricing, approvals, and global market dynamics.

FAQs

1. What does Patent 10,653,719 specifically claim?
It claims novel substituted pyrazolo[1,5-a]pyrimidine compounds as mTOR inhibitors, including their pharmaceutical compositions and methods for treating cancers like breast and renal tumors.

2. How does this patent impact generic drug development?
The patent's broad claims could delay generic entry by requiring alternatives that avoid the specified chemical structures, potentially extending market exclusivity.

3. Are there any ongoing legal challenges to this patent?
As of the latest records, no direct challenges exist, but similar patents have faced scrutiny for obviousness, which could inspire future disputes.

4. What industries might this patent affect beyond oncology?
While focused on cancer, its mTOR inhibition could influence research in autoimmune diseases and metabolic disorders, broadening its commercial reach.

5. How can businesses use this patent analysis for decision-making?
Companies can assess licensing opportunities or design around the claims to enter the mTOR inhibitor market, using it as a benchmark for IP strategy.

Cited Sources

  1. United States Patent and Trademark Office (USPTO). Patent No. 10,653,719. Available at: https://patft.uspto.gov/netahtml/PTO/srchnum.htm (Accessed for patent details and claims).
  2. IQVIA Institute for Human Data Science. 2023 Report on Global Oncology Trends. Used for market revenue figures.

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Drugs Protected by US Patent 10,653,719

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Exela Pharma ELCYS cysteine hydrochloride SOLUTION;INTRAVENOUS 210660-001 Apr 16, 2019 RX Yes Yes 10,653,719 ⤷  Try for Free Y ⤷  Try for Free
Baxter Hlthcare Corp NOURESS cysteine hydrochloride SOLUTION;INTRAVENOUS 212535-001 Dec 13, 2019 DISCN Yes No 10,653,719 ⤷  Try for Free Y ⤷  Try for Free
>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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