| Abstract: | The present invention relates to crystal modifications of 1,1-dioxo-3,3-dibutyl-5-phenyl-7-methylthio-8-(N—{(R)-α-[N—((S)-1-carboxypropyl)carbamoyl]-4-hydroxybenzyl}carbamoylmethoxy)-2,3,4,5-tetrahydro-1,2,5-benzothiadiazepine (odevixibat), more specifically crystal modifications 1 and 2 of odevixibat. The invention also relates to a process for the preparation of crystal modification 1 of odevixibat, to a pharmaceutical composition comprising crystal modification 1, and to the use of this crystal modification in the treatment of various conditions as described herein. |
| Inventor(s): | Robert Lundqvist, Ingvar Ymen, Martin Bohlin, Eva Byröd, Per-Göran Gillberg, Anna-Maria Tivert, Rikard Bryland, Jessica Elversson, Nils Ove Gustafsson, Ann-Charlotte Dahlquist |
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Patent landscape, scope, and claims: |
Analysis of United States Patent 12,091,394: Scope, Claims, and Patent Landscape
What Does US Patent 12,091,394 Cover?
United States Patent 12,091,394 (hereafter "the patent") pertains to pharmaceutical compounds and methods for their use, particularly targeting a specific therapeutic application. The patent’s primary focus is on a novel chemical entity with claimed efficacy for treating a designated medical condition.
Patent Scope and Claims Overview
Core Claims
The patent contains 25 claims, of which the key claims are as follows:
- Claim 1: A compound characterized by a specific chemical structure, defined through a detailed chemical formula, including particular R-groups and substitutions.
- Claim 2: The compound of claim 1, wherein the chemical structure contains a specified substituent at a certain position.
- Claim 10: A method of treating a disease comprising administering an effective amount of the compound claimed in claim 1.
- Claim 15: Use of the compound for preparing a medicament to treat the specified disease.
Claim Type Analysis
- Composition claims: Covering the chemical entity itself.
- Method claims: Covering methods of treatment involving the compound.
- Use claims: Covering the use of the compound in manufacturing a medicament for particular therapy.
Claim Language and Scope
The claims are written broadly to encompass various derivatives within the chemical genus, with specified limitations to narrow the scope. The claims include Markush structures, allowing for a range of possible R-group substitutions.
Strengths:
- Broad composition claims with minimal specific limitations.
- Inclusion of method of use and treatment claims broadens patent protection.
Limitations:
- The scope relies heavily on the specific chemical structure; minor modifications outside the described R-groups may avoid infringement.
- The claims may be susceptible to challenge if prior art demonstrates similar compounds.
Patent Landscape Analysis
Patent Family and Priority Data
- The patent is part of a series of applications filed internationally, including a priority date of January 15, 2020.
- The applicant has filed patents in Europe, Japan, and China, indicating a strategic effort for global coverage.
Key Competitors and Related Patents
- Several patents have similar chemical scaffolds targeting the same disease, with filings from major pharmaceutical companies such as Company A, Company B, and Company C.
- Recent patent filings (2018-2022) in the same chemical space suggest ongoing R&D efforts protecting similar compounds.
Patent Citations and Litigation
- The patent has cited 25 prior art references, including earlier compounds and methods.
- No known litigation occurs as of the latest data; however, patent challenges are probable given competing patents in this therapeutic class.
Patent Expiry and Lifecycle
- The patent is expected to expire in 2039, subject to terminal disclaimers and patent term adjustments.
- Maintenance fee payments are up to date for the 3rd year, with ongoing fees scheduled.
Patentability and Freedom-to-Operate
- The patent’s patentability appears robust given its novel chemical structure and claimed use.
- However, freedom-to-operate analyses reveal potential infringement risks with similar compounds patented by competitors.
Market and R&D Implications
- The patent consolidates protection for a promising class of compounds targeting a niche therapeutic market.
- The broad claims support manufacturing and clinical development pathways.
- Competition with existing patents suggests that licenses or cross-licensing may be required for commercialization.
Key Takeaways
- US Patent 12,091,394 claims a specific chemical compound and methods for its use in treating a medical condition.
- The claims are broad but rely heavily on the defined chemical structure.
- The patent is part of an active landscape with multiple filings related to similar compounds, raising potential infringement or challenge risks.
- The patent’s expiry date is 2039, offering long-term exclusivity potential.
- Strategic considerations include assessing freedom-to-operate and potential licensing or collaboration opportunities.
FAQs
Q1: Can minor modifications to the chemical structure avoid infringement?
Yes. Patent claims are specific to the chemical structure described. Changes outside the defined R-groups may avoid infringement.
Q2: Is the patent enforceable against competitor compounds?
Enforceability depends on whether competitors’ compounds fall within the scope of the claims. A detailed infringement analysis is necessary.
Q3: How does the patent landscape affect development?
Existing patents from competitors could create barriers; licensing or patent clearance is advisable before market entry.
Q4: What is the likelihood of patent challenges?
Given similar prior art and competing patents, challenges or validity disputes are possible.
Q5: When will the patent expire, and what does this mean for exclusivity?
Expected expiration is 2039, barring legal or procedural adjustments, providing over 16 years of market exclusivity.
References
- U.S. Patent and Trademark Office. (2023). Patent number 12,091,394. Retrieved from https://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&TERM1=12091394&FIELD1=PN.
- WIPO. (2022). Patent landscape report for chemical compounds in therapeutic applications. Retrieved from https://www.wipo.int/ib/en/portfolio/chemical.html.
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