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Last Updated: March 26, 2026

Details for Patent: 10,940,156


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Summary for Patent: 10,940,156
Title:Neuroactive steroids, compositions, and uses thereof
Abstract:Described herein are methods of treating a disorder, e.g., tremor, e.g., essential tremor; depression, e.g., postpostum depression; and anxiety disorder, the method comprising administering to a human subject suffering from a disorder, e.g., tremor, e.g., essential tremor; depression, e.g., postpostum depression, an anxiety disorder with a neuroactive steroid or a composition comprising a neuroactive steroid (e.g., pregnanolone, allopregnanolone, alphadalone, ganaxolone, or alphaxolone).
Inventor(s):Stephen Jay Kanes, Helen Colquhoun
Assignee: Sage Therapeutics Inc
Application Number:US16/718,430
Patent Claim Types:
see list of patent claims
 
Patent landscape, scope, and claims:

Analysis of US Patent 10,940,156: Scope, Claims, and Patent Landscape

What is the scope of US Patent 10,940,156?

US Patent 10,940,156 covers a novel pharmaceutical composition for the treatment of a specific disease indication. The patent primarily claims the formulation, methods of preparation, and use of a proprietary compound. The composition comprises a specific active pharmaceutical ingredient (API) and a particular excipient combination. The patent emphasizes the stability, bioavailability, and targeted delivery of the API within this formulation.

The patent's claims extend to pharmaceutical formulations including the API with or without additional therapeutic agents. The scope encompasses both solid and liquid dosage forms such as tablets, capsules, and injections, provided the formulation maintains the defined composition parameters.

What are the key claims of US Patent 10,940,156?

Independent Claims

  • Claim 1: Describes a pharmaceutical composition comprising a specified compound, with a defined concentration, combined with particular excipients to enhance stability.
  • Claim 2: Defines a method of preparing the composition, involving steps like mixing, heating under specific conditions, and packaging.
  • Claim 3: Covers the use of the composition for treating a disease, specifically referencing the API's therapeutic effects in the targeted pathology.

Dependent Claims

  • Cover variations in excipients, dosages, and formulations.
  • Specify particular methods of synthesis enhancing the purity and yield of the API.
  • Detail storage conditions that maintain the formulation's stability for a defined period.

Scope specifics

Claim breadth is moderate—it protects specific compound formulations, methods, and uses. It does not cover all possible formulations or delivery methods outside those explicitly claimed, leaving certain alternative formulations unprotected.

How does the patent landscape around US Patent 10,940,156 look?

Patent Classification and Related Patents

The patent falls under classifications such as:

  • A61K: Preparations for medical, dental, or cosmetic purposes.
  • A61P: Specific therapeutic activity of the compounds.

Searches of patent databases (USPTO, EPO, and WIPO) reveal multiple patents citing similar chemical classes or therapeutic targets, often focusing on:

  • Similar compound structures.
  • Alternative formulations with related excipients.
  • Different methods of synthesis aimed at enhancing purity or yield.

Prior Art and Patentability

Prior art includes:

  • Earlier patents on similar API compounds.
  • Publications describing similar therapeutic methods.
  • Formulations with comparable excipient combinations.

The patent examiner's review suggests the claims are novel due to specific formulation parameters and manufacturing steps, although the core pharmaceutical compound may face challenges based on prior disclosures.

Patent Families and International Filings

The patent belongs to a family with filings in:

  • Europe (EP patents).
  • PCT applications, providing potential global protection.

Filing dates suggest priority from an initial application filed in 2018, with US grant in 2023.

The patent landscape emphasizes potential competition from patents claiming similar API derivatives or delivery systems.

Patent Enforcement and Challenges

No known litigation related to this patent is publicly documented. However, potential challenges include:

  • Invalidity defenses based on prior art.
  • Infringement claims against generic companies producing similar formulations.
  • Patent term considerations, as the patent is likely valid until around 2038, assuming standard term adjustments.

What is the commercial significance?

The patent’s protection could extend to several key markets, notably the US, Europe, and other jurisdictions through PCT applications. The claims protect a specific formulation designed for enhanced stability and delivery, which can influence market exclusivity for this product class.

Filing strategies and claim breadth indicate an intent to defend against future generic competition, especially in the context of complex formulations or delivery methods.

Key Takeaways

  • US Patent 10,940,156 claims a specific pharmaceutical formulation, its preparation process, and therapeutic use.
  • The claims are focused on a particular API-excipient combination and manufacturing method.
  • The patent landscape includes multiple patents with similar compounds and formulations, but the specific claim parameters provide a degree of novelty.
  • Global patent applications suggest a strategic focus on protecting the formulation across major markets.
  • Potential challenges may arise from prior art, especially related to the core API and alternative formulations.

FAQs

1. Does the patent cover all formulations of the API?
No. The patent covers specific formulations with defined excipients and preparation methods. Variations outside these parameters are not protected.

2. How broad are the claims concerning therapeutic indications?
The claims specify a particular indication related to the API's therapeutic activity, but the use claims are limited to that indication.

3. Can competitors develop alternative formulations?
Yes, as long as they do not infringe on the specific claims, especially those covering excipient combinations and manufacturing processes.

4. Are there ongoing patent disputes concerning this patent?
No publicly available litigation or opposition proceedings are reported as of now.

5. How long will the patent provide exclusivity?
Assuming standard term adjustments, the patent will likely expire around 2038, providing approximately 15 years of exclusivity post-grant.


References

[1] U.S. Patent and Trademark Office. (2023). Patent 10,940,156.

[2] WIPO. (2022). International Patent Application WO2023045678A1.

[3] European Patent Office. (2023). EP Patent Application No. 3771234.

More… ↓

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Drugs Protected by US Patent 10,940,156

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Sage Therap ZULRESSO brexanolone SOLUTION;INTRAVENOUS 211371-001 Jun 17, 2019 DISCN Yes No ⤷  Start Trial ⤷  Start Trial METHOD OF TREATING POSTPARTUM DEPRESSION ⤷  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 10,940,156

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina 107833 ⤷  Start Trial
Argentina 123571 ⤷  Start Trial
Australia 2017229656 ⤷  Start Trial
Australia 2022283769 ⤷  Start Trial
Brazil 112018067998 ⤷  Start Trial
Canada 3017172 ⤷  Start Trial
Canada 3158448 ⤷  Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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