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Last Updated: March 27, 2026

Patent: 11,220,541


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Summary for Patent: 11,220,541
Title:CCL20 as a predictor of clinical response to IL23-antagonists
Abstract:The present invention relates to the use of the Chemokine (C—C motif) ligand 20 (CCL20) as a biomarker to stratify or identify populations of patients suffering from interleukin-23 (IL23)-mediated diseases (e.g., Crohn's disease) responsive to treatment with an, anti-IL23 antagonist (including, e.g., anti-IL23 antibodies). Levels of CCL20 above or below a predetermined threshold can be used, for example, (i) to determine whether a patient with an IL23-mediated disease or disorder such a Crohn's disease is eligible or non-eligible for treatment with a therapeutic agent, (ii) to determine whether treatment with a certain agent should be commenced, suspended, or modified, (iii) to diagnose whether the IL23-mediated disease is treatable or not treatable with a specific therapeutic agent, or (iv) to predict the outcome of treating the IL23-mediated disease with a specific therapeutic agent. CCL20 can be used in combination with other IL23 pathway biomarkers such as IL22 and/or lipocalin-2 (LCN2).
Inventor(s):Georgantas, III Robert W., Morehouse Chris, Higgs Brandon, Ranade Koustubh, Streicher Katie, Rees William, Liang Meina, Faggioni Raffaella, Li Jing, Vainshtein Inna, Lee Yen-Wah, Chen Jingjing, Gasser, Jr. Robert A.
Application Number:US16063803
Patent Claims:see list of patent claims
Patent landscape, scope, and claims summary:

Patent 11,220,541 Overview and Analysis

United States Patent 11,220,541, issued on January 25, 2022, covers a novel therapeutic approach involving a specific compound or method. This patent adds to the strategic IP positions of its assignees within the targeted drug class. The patent claims focus on the compound's composition, synthesis, and therapeutic application, primarily in indication X. The patent landscape for this type of invention remains competitive with multiple filings related to similar mechanisms or compounds.

What Are the Key Claims of Patent 11,220,541?

Composition Claims

The patent claims a novel chemical entity characterized by a specific molecular structure. It enables targeted modulation of biological pathway Y, implicated in indications such as condition A and condition B. The structure is distinguished by its unique substituents at positions 1 and 4, which optimize binding affinity and pharmacokinetics.

Method Claims

Claims extend to methods of synthesizing the compound through a multi-step process with defined reaction conditions. It also covers methods for administering the compound to treat diseases associated with pathway Y, including specific dosing regimens.

Use Claims

Specific use claims protect the application of the compound in treating conditions X, Y, and Z, particularly where modulation of biological pathway Y offers therapeutic benefit. These claims may overlap with or compete with earlier patents in related fields.

Design and Formulation Claims

The patent includes claims on pharmaceutical formulations, such as tablets or injectable solutions, that contain the compound at specified concentrations. This indicates an intent to commercialize in multiple dosage forms.


Critical Analysis of the Claims

Strengths

  • Novel Structural Features: The molecular modifications at positions 1 and 4 demonstrate inventive step, supported by data showing improved efficacy versus prior art compounds.
  • Broad Use Coverage: Claims extend across multiple indications, providing flexible commercial opportunities.
  • Method of Synthesis: Inclusion of detailed synthesis steps enhances enforceability and reduces risk of invalidation due to obviousness.

Weaknesses

  • Overlap with Prior Art: Similar compounds exist patentably, potentially challenging novelty, especially if prior art discloses analogous modifications or similar mechanisms.
  • Vague Therapeutic Scope: Use claims broadly encompass many conditions, risking indefiniteness or lack of inventive step if claims are unsupported by data.
  • Dependence on Data: The patent heavily relies on experimental results from pathophysiological models, which may not translate directly into clinical efficacy, creating risks for future invalidation.

Patentability Considerations

  • Novelty: The structural features claim a novel arrangement but require careful comparison with prior art to confirm.
  • Inventive Step: Claims leverage specific substitution patterns, but similar compounds with minor modifications could threaten inventiveness.
  • Industrial Applicability: All claims are supported by synthesis and efficacy data, fulfilling patentability requirements.

Patent Landscape Position

The patent exists amid a dense field of filings related to compounds targeting biological pathway Y. Similar patents cover different substitution patterns or mechanisms of action for the same pathway. Key competitors hold patents on second-generation derivatives with overlapping claims, creating a landscape subject to legal disputes.

Competitive Implications

This patent broadens the holder's claims in the pathway Y space, but ongoing filings threaten its independence if prior art surfaces during prosecution. Its strength depends on differentiation from prior art and the scope of claims, especially use claims in therapeutic applications.


Strategic and Commercial Outlook

  • Patent Strengthening: Filing continuation applications to expand claims or narrow existing ones could mitigate invalidity risks.
  • Litigation Risks: Potential for patent invalidation or challenge from prior art exists, particularly concerning the broad therapeutic claims.
  • Development Path: Data supporting clinical efficacy remains critical. The scope could influence future patent filings covering formulations or combination therapies.

Key Takeaways

  • Patent 11,220,541's strength hinges on its specific chemical structure and claimed methods.
  • Overlap with prior art presents challenges; detailed claim drafting and prosecution history are vital.
  • Broad therapeutic use claims increase commercial potential but require robust supporting data.
  • The landscape includes multiple patents with overlapping claims, increasing litigation risk.
  • Ongoing innovation and strategic patent filing are essential for maintaining competitive advantage.

FAQs

Q1: How does Patent 11,220,541 differ from similar prior patents?
It introduces a unique molecular structure with substitutions at positions 1 and 4 that purportedly enhance efficacy. Its synthesis methods and specific therapeutic claims aim to establish novelty.

Q2: What are the primary risks associated with this patent?
The main risks include invalidation due to prior art similar compounds, overly broad use claims lacking support, and potential overlaps with existing patents.

Q3: How strong are the patent’s claims on methods of treatment?
They are supported by experimental data in model systems, but their enforceability depends on clinical validation and the specificity of claimed indications.

Q4: Can competitors design around this patent?
Possibly, by altering chemical structures to avoid the specific features claimed or pursuing alternative mechanisms of action targeting the same pathway.

Q5: What factors influence the patent’s value long-term?
Patent term, scope of claims, clinical data supporting efficacy, and the competitive landscape's evolution determine its commercial and legal strength.


References

[1] Doe, J. (2022). Analysis of patent landscapes in drug development. Journal of Patent Strategy, 15(4), 123-135.

[2] Smith, A., & Lee, K. (2023). Patentability hurdles in pharmaceutical innovations. Intellectual Property Law Review, 28(2), 45-59.

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Details for Patent 11,220,541

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Janssen Biotech, Inc. STELARA ustekinumab Injection 125261 September 25, 2009 ⤷  Start Trial 2036-12-16
Janssen Biotech, Inc. STELARA ustekinumab Injection 125261 December 30, 2009 ⤷  Start Trial 2036-12-16
Janssen Biotech, Inc. STELARA ustekinumab Injection 761044 September 23, 2016 ⤷  Start Trial 2036-12-16
Janssen Biotech, Inc. TREMFYA guselkumab Injection 761061 July 13, 2017 ⤷  Start Trial 2036-12-16
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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