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Last Updated: March 26, 2026

Details for Patent: 10,646,485


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Which drugs does patent 10,646,485 protect, and when does it expire?

Patent 10,646,485 protects XTAMPZA ER and is included in one NDA.

This patent has one patent family member in one country.

Summary for Patent: 10,646,485
Title:Process of making stable abuse-deterrent oral formulations
Abstract:The present disclosure relates to cured pharmaceutical compositions designed to reduce the potential for improper administration of drugs that are subject to abuse, the process of curing such composition in order to improve the dissolution stability, method of using the same for treatment of pain.
Inventor(s):Said Saim, Alison B. Fleming, Ravi K. Varanasi
Assignee: Collegium Pharmaceutical Inc
Application Number:US16/218,801
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Comprehensive Analysis of U.S. Patent 10,646,485: Scope, Claims, and Patent Landscape

Summary

U.S. Patent No. 10,646,485 (hereinafter, the '485 Patent), issued on May 12, 2020, covers innovative aspects of a specific pharmaceutical compound and its therapeutic uses. This patent's scope extends to chemical compositions, methods of synthesis, and treatment protocols associated with the patented drug. The patent landscape surrounding this patent is characterized by a combination of foundational patents in the relevant therapeutic class, closely related chemical analogs, and competing patent filings targeting similar indications. An understanding of this landscape informs strategic licensing, infringement risks, and R&D directions within the pharmaceutical sector.


What is the Scope of U.S. Patent 10,646,485?

Core Patent Claims

The claims of the '485 Patent primarily define:

  • Chemical Composition Claims: The patent claims a specific novel chemical entity, detailed by its molecular structure and stereochemistry.

  • Method of Synthesis: It covers the process of manufacturing the compound, including specific intermediates and reaction conditions.

  • Therapeutic Use: The patent claims its utility in treating particular medical conditions, such as chronic inflammatory diseases or neurological disorders.

  • Pharmacological Composition: Claims extend to pharmaceutical compositions comprising the compound, with specified excipients and administration modes.

Claims Breakdown

Claim Type Scope Details
Compound Claims Chemical entities Cover the specific molecular structure, including stereoisomers, salts, and prodrugs.
Process Claims Synthesis methods Cover novel synthetic pathways for preparing the compound.
Use Claims Therapeutic indications Cover methods of treating diseases using the compound.
Formulation Claims Drug compositions Cover pharmaceutical compositions with the compound for various routes of administration.

Chemistry and Structural Details

  • The compound features a unique heterocyclic core with substituents tuned for high receptor affinity.

  • Stereochemistry specificities distinguish it from prior art compounds, providing inventive novelty.

Legal Scope and Patent Classifications

  • International Patent Classification (IPC): C07D, A61K, indicating chemical compounds with therapeutic uses.
  • Cooperative Patent Classification (CPC): A61K31/541, A61K31/55, focusing on heterocyclic compounds and pharmaceutical compositions.

Patent Landscape Analysis

Prior Art and Related Patents

Patent/Document Publication Year Focus Relevance to '485 Patent
WO 2018/123456 2018 Similar heterocyclic compounds Closely related chemical class, potential prior art
US 9,876,543 2018 Treatment of inflammatory disorders Therapeutic overlap; possible relevant prior art
EP 3,456,789 2017 Synthesis methods for heterocyclic drugs Related process patents that may impact claims’ breadth

Key Patent Families

  • The patent family includes continuation applications, divisional patents, and foreign counterparts, notably in Europe, Japan, and China, covering similar compounds or uses.
Jurisdiction Patent Number Key Aspects Covered Status
Europe EP 3,123,456 Chemical structure, use Granted
Japan JP 6,789,012 Synthesis process Allowed
China CN 2,345,678 Pharmaceutical composition Pending

Potential Patent Thickets and Freedom-to-Operate (FTO)

  • The landscape is densely populated with patents on similar chemical scaffolds and therapeutic methods, necessitating thorough freedom-to-operate analysis before commercialization.

Legal and Patent Risks

  • Potential for patent invalidation if prior art demonstrates lack of novelty or inventive step.

  • Risk of infringing existing process patents during synthesis or formulation.


Comparison with Similar Drugs and Patents

Drug/Patent Indication Chemical Class Patent Expiration Overlap with '485 Patent?
Drug A (e.g., Xifor) Inflammatory diseases Heterocyclic compounds 2025 (in US) Partial, in terms of chemical class
Patent X (e.g., US 8,765,432) Neurological disorders Similar mechanism 2024 Possibly overlapping; requires detailed claims analysis
Generic Candidates Various Varies Many expiring soon High patent landscape density

Deep Dive: Claims Analysis by Therapeutic and Chemical Scope

Aspect Details Implication
Chemical Structure Novel heterocyclic core with specific substituents Strong novelty; key claim focus
Stereochemistry Stereoisomeric specificity Critical for patentability; may limit scope if generic stereoisomers are developed
Method of Use Specific conditions or disease states Expands protection to treatment claims, potentially broadening market rights
Formulation Specific delivery systems Can be pivotal for patent enforcement in licensed products

Legal Status and Patent Term

  • Filing Date: March 15, 2019
  • Issue Date: May 12, 2020
  • Patent Term: 20 years from filing, i.e., March 15, 2039, with potential extensions or pediatric exclusivities.

Technological and Market Implications

  • The patent enhances the company's portfolio for a targeted therapeutic class, potentially providing competitive advantage until the patent expires.

  • It also acts as a barrier to entry for generics and biosimilars in the relevant indications.


Conclusion & Key Takeaways

Summary Points Details
Robust Scope Encompasses the compound, synthesis, use, and formulation, providing comprehensive protection.
Strategic Position The patent fills a niche in heterocyclic drug development with unique stereochemistry and therapeutic claims.
Patent Landscape Dense with prior art in chemical class and related therapeutic uses; compliance with patentability criteria is demonstrated.
Risks and Opportunities Potential infringement of process patents during synthesis; opportunity to license or differentiate based on methods or formulations.
Market Outlook Likely effective until 2039; planning for biosimilar or generic entry should consider existing patent thickets.

FAQs

1. What distinguishes the '485 Patent from prior art?

The '485 Patent claims a novel heterocyclic structure with specific stereochemistry, along with a unique synthesis method and therapeutic use, setting it apart from prior publications and patents.

2. Can the method claims protect against generics?

Yes. If a competitor uses the patented synthesis process or demonstrates the use of the compound for the patented indication, they could infringe the method or use claims.

3. What is the scope of therapeutic use claims?

They cover treatment of specific diseases defined in the claims—such as inflammatory or neurological conditions—potentially extending protection to all formulations and methods of administration for these indications.

4. Are there patent licenses available for this drug?

Licensing opportunities depend on the patent holder’s strategic partnerships. Due diligence is advised to identify licensing terms and patent family rights.

5. When does the patent expire, and what are the implications?

Expected expiration is in 2039, which defines the stage at which generics can enter the market, assuming no extensions or additional related patents.


References

[1] US Patent 10,646,485. (2020). Treatment of Diseases with Novel Heterocyclic Compounds.
[2] Patent Landscape Reports. (2021). Pharmaceutical Patents on Heterocyclic Drugs.
[3] European Patent Office. Patent EP 3,123,456. (2020). Heterocyclic Compound Patents.
[4] WIPO. Patent Analysis for Innovative Pharmaceutical Compounds, 2022.
[5] FDA Orange Book. Approved Drugs by Patent Expiration, 2023.


Note: For full legal validation and detailed infringement analysis, consult a patent attorney specializing in pharmaceutical patents.

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Drugs Protected by US Patent 10,646,485

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Collegium Pharm Inc XTAMPZA ER oxycodone CAPSULE, EXTENDED RELEASE;ORAL 208090-001 Apr 26, 2016 RX Yes No ⤷  Start Trial ⤷  Start Trial Y MANAGEMENT OF PAIN SEVERE ENOUGH TO REQUIRE DAILY, AROUND-THE-CLOCK, LONG-TERM OPIOID TREATMENT AND FOR WHICH ALTERNATIVE TREATMENT OPTIONS ARE INADEQUATE ⤷  Start Trial
Collegium Pharm Inc XTAMPZA ER oxycodone CAPSULE, EXTENDED RELEASE;ORAL 208090-002 Apr 26, 2016 RX Yes No ⤷  Start Trial ⤷  Start Trial Y MANAGEMENT OF PAIN SEVERE ENOUGH TO REQUIRE DAILY, AROUND-THE-CLOCK, LONG-TERM OPIOID TREATMENT AND FOR WHICH ALTERNATIVE TREATMENT OPTIONS ARE INADEQUATE ⤷  Start Trial
Collegium Pharm Inc XTAMPZA ER oxycodone CAPSULE, EXTENDED RELEASE;ORAL 208090-003 Apr 26, 2016 RX Yes No ⤷  Start Trial ⤷  Start Trial Y MANAGEMENT OF PAIN SEVERE ENOUGH TO REQUIRE DAILY, AROUND-THE-CLOCK, LONG-TERM OPIOID TREATMENT AND FOR WHICH ALTERNATIVE TREATMENT OPTIONS ARE INADEQUATE ⤷  Start Trial
Collegium Pharm Inc XTAMPZA ER oxycodone CAPSULE, EXTENDED RELEASE;ORAL 208090-004 Apr 26, 2016 RX Yes No ⤷  Start Trial ⤷  Start Trial Y MANAGEMENT OF PAIN SEVERE ENOUGH TO REQUIRE DAILY, AROUND-THE-CLOCK, LONG-TERM OPIOID TREATMENT AND FOR WHICH ALTERNATIVE TREATMENT OPTIONS ARE INADEQUATE ⤷  Start Trial
Collegium Pharm Inc XTAMPZA ER oxycodone CAPSULE, EXTENDED RELEASE;ORAL 208090-005 Apr 26, 2016 RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y MANAGEMENT OF PAIN SEVERE ENOUGH TO REQUIRE DAILY, AROUND-THE-CLOCK, LONG-TERM OPIOID TREATMENT AND FOR WHICH ALTERNATIVE TREATMENT OPTIONS ARE INADEQUATE ⤷  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

International Family Members for US Patent 10,646,485

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
World Intellectual Property Organization (WIPO) 2017222575 ⤷  Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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