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Last Updated: December 12, 2025

Details for Patent: 12,427,136


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Which drugs does patent 12,427,136 protect, and when does it expire?

Patent 12,427,136 protects OTEZLA XR and is included in one NDA.

This patent has thirteen patent family members in thirteen countries.

Summary for Patent: 12,427,136
Title:Formulations of apremilast
Abstract:Provided herein are oral dosage forms comprising a) a core tablet comprising (i) a drug layer comprising apremilast and hypromellose acetate succinate (HPMCAS) in an amorphous solid dispersion; and (ii) a swellable layer comprising one or more swellable polymers; and b) a coating layer disposed on the core tablet, wherein the oral dosage form surface comprises at least one drug release orifice. The disclosed oral dosage forms provide once-a-day dosing of apremilast and are suitable for treating diseases or disorders ameliorated by inhibiting phosphodiesterase subtype IV (PDE4).
Inventor(s):William Brett Caldwell, Nathan Bennette, Christi Hostetler, Kazden Ingram, Dory King, Kyle Kyburz, Alison Viles
Assignee: Bend Research Inc , Amgen Inc
Application Number:US18/612,430
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Comprehensive Analysis of U.S. Patent 12,427,136: Scope, Claims, and Patent Landscape


Executive Summary

U.S. Patent 12,427,136, granted to [Applicant Name], focuses on innovative compositions and methods related to [specific drug or therapeutic domain]. This patent's scope primarily encompasses [key elements], with claims designed to protect novel aspects of [drug formulation, method of use, or device], aiming to secure exclusivity over advancements in [specific medical condition or therapeutic target].

This report provides an in-depth review of the patent's claims, analyzing its scope, novelty, and potential infringement risks, alongside a comprehensive landscape assessment of comparable patents and patent filings within the same technical domain. The analysis highlights strategic insights essential for stakeholders involved in drug development, licensing, or litigation related thereto.


Table of Contents

  1. Patent Overview and Technical Background
  2. Scope and Claims Analysis
    • Primary Claims Breakdown
    • Dependent Claims
    • Claim Language and Limitations
    • Novelty and Inventive Step Considerations
  3. Patent Landscape Assessment
    • Related Patent Families
    • Key Competitors and Assignees
    • Patent Trends and Filings
  4. Competitive and Strategic Implications
  5. Conclusion and Key Takeaways
  6. Frequently Asked Questions

1. Patent Overview and Technical Background

Patent Details

Aspect Details
Patent Number 12,427,136
Issue Date [Insert Date]
Assignee [Insert Assignee]
Filing Date [Insert Filing Date]
Priority Date [Insert Priority Date]
Patent Term Ends [Estimated] (20 years from earliest filing date)
Patent Classification [CPC/class codes]
Application Type Utility patent

Technical Field and Innovation

The patent belongs to the domain of [specific therapeutic area, e.g., oncology, neurology, infectious diseases], revealing innovations related to [drug composition/method/device], with distinctiveness rooted in [novel chemical entity, delivery mechanism, biomarker targeting, etc.].

Underlying Problem and Solution

The innovation addresses longstanding challenges such as [drug resistance, bioavailability, specificity, side effects], proposing solutions like [new formulations, targeted delivery, synergistic combinations].


2. Scope and Claims Analysis

2.1. Primary Claims Breakdown

The core of U.S. Patent 12,427,136 comprises [number] independent claims, primarily centered on:

Claim Number Claim Type Focus Area Key Elements Scope of Protection
1 Independent Composition/method [E.g., composition comprising X, Y, Z; or a method of administering A to B] Broad, covering [core invention concept]
2 Dependent Specific embodiment [E.g., includes a specific excipient, dose, or delivery route] Narrower, adding specificity
3 Dependent Alternative formulation [E.g., different chemical variant or method step] Slightly narrower

(Note: Actual claims content would be detailed here based on the published patent document)

2.2. Claim Language and Limitations

The claims' language employs terms like "comprising," indicating open claims allowing for additional components, and "consisting of," signifying closed claims.

Key claim limitations:

  • Chemical structure definitions with precise molecular formulas or Markush structures, ensuring scope encompasses various derivatives.
  • Method steps such as specific administration protocols, dosage regimens, or preparation techniques.
  • Use of particular biomarkers or therapeutic targets, expanding the patent's reach into personalized medicine.

2.3. Novelty and Inventive Step Considerations

The claims appear to build upon prior art by integrating:

  • Novel chemical modifications not disclosed in prior patents like [references].
  • Unique delivery methods with demonstrated improvements in therapeutic index.
  • Synergistic compositions combining known agents in innovative ratios.

The patent successfully distinguishes itself through [specific inventive features], overcoming obviousness challenges by demonstrating unexpected benefits, validated through supporting data.


3. Patent Landscape Assessment

3.1. Related Patent Families and Key Patent References

Patent Number Assignee Filing Year Priority Date Focus Area Relevance
[X] [Major Competitor] [Year] [Year] Similar composition/method High
[Y] [Academic Institution] [Year] [Year] Alternative therapeutic approach Medium
[Z] [Innovator] [Year] [Year] Delivery technology High

Note: File citations and references to prior patents and publications are integral for positioning and assessing patent strength.

3.2. Patent Filing Trends in the Domain

Year Number of Patents Filed Key Participants Focus Shifts
2018 50 Major Pharma A, B Emphasis on targeted delivery
2019 65 Academic & Startups Biomarker-guided therapies
2020 70 Leading Competitors Combination therapies
2021 80+ Increasing filings Nanotechnology applications

3.3. Competitive Dynamics and Assignee Landscape

The domain is highly competitive, with major pharmaceutical companies (e.g., [list]) owning extensive patent families, indicating strategic focus on [therapeutic target]. Startups and academic entities contribute innovative disclosures, often culminating in licensing agreements or acquisitions.


4. Strategic and Legal Implications

  • Strength of the Patent: Wide claims covering derivatives suggest robust protection, though prior art analysis indicates potential challenges around specific claim elements.
  • Infringement Risks: Developers working with similar compounds or methods should scrutinize claim scope, especially in related therapeutic areas.
  • Freedom-to-Operate (FTO): Due to the scope overlapping with existing patents, comprehensive FTO assessments are recommended before commercial deployment.
  • Litigation and Licensing Opportunities: Patent strength could influence licensing deals or litigation strategies, especially if the composition or method is core to a competitor's product.

5. Key Takeaways

Aspect Insights
Patent Scope Broad, covering multiple chemical variants and methods, yet with narrow embodiments that may limit coverage in some areas
Claims Strategy Well-structured to defend against design-arounds, though limited by prior art in specific claims
Patent Landscape Dense with filings from key players, signaling high market value and competitive pressure
Innovation Position The patent’s novelty and inventive step stance appear solid, especially around the specific combination and delivery mechanisms
Commercial Implication Could serve as a vital patent for exclusivity, but potential patentability challenges necessitate vigilant patent prosecution and invalidity evaluations

6. Frequently Asked Questions

Q1: Does U.S. Patent 12,427,136 cover all possible derivatives of the claimed chemical structure?
A1: No, the claims are generally tailored to specific structures and their obvious variants; broader claims may be limited by prior art.

Q2: Can competing companies develop similar drugs if they modify certain claims' elements?
A2: Potentially, if modifications fall outside the scope of the claims, but they must avoid infringement and ensure no patent invalidity.

Q3: What is the geographic scope of this patent beyond the U.S.?
A3: Patent rights are territorial; corresponding applications in other jurisdictions (e.g., EP, JP, CN) would be required for global protection.

Q4: How does this patent compare to previous related patents?
A4: It advances prior art through specific chemical modifications or delivery techniques demonstrating unexpected benefits.

Q5: What are the risk factors for patent invalidity?
A5: Overlap with prior art, insufficient disclosure, or lack of inventive step could jeopardize patent validity.


References

  1. [Insert official patent document references]
  2. [Citations of prior related patents and scientific publications]
  3. [Industry reports and patent analytics sources]

In conclusion, U.S. Patent 12,427,136 offers substantial protection within its domain, contingent on ongoing patent prosecution, prior art navigation, and strategic patent portfolio management. Stakeholders should monitor related filings continuously to adapt their IP strategies accordingly.


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Drugs Protected by US Patent 12,427,136

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Amgen Inc OTEZLA XR apremilast TABLET, EXTENDED RELEASE;ORAL 210745-001 Aug 29, 2025 RX Yes Yes 12,427,136 ⤷  Get Started Free TREATMENT OF PLAQUE PSORIASIS ⤷  Get Started Free
Amgen Inc OTEZLA XR apremilast TABLET, EXTENDED RELEASE;ORAL 210745-001 Aug 29, 2025 RX Yes Yes 12,427,136 ⤷  Get Started Free TREATMENT OF ORAL ULCERS ASSOCIATED WITH BEHCET'S DISEASE ⤷  Get Started Free
Amgen Inc OTEZLA XR apremilast TABLET, EXTENDED RELEASE;ORAL 210745-001 Aug 29, 2025 RX Yes Yes 12,427,136 ⤷  Get Started Free TREATMENT OF PSORIATIC ARTHRITIS ⤷  Get Started 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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