Enhanced Gel Ophthalmic Formulations of Pilocarpine and Brimonidine Compounds for Presbyopia Treatment
Legal Citation
Summary of the Inventive Concept
This inventive concept improves the original gel ophthalmic formulations of pilocarpine and brimonidine compounds by introducing novel enhancements that address limitations of the original patent, providing better efficacy, safety, and patient comfort in presbyopia treatment.
Background and Problem Solved
The original patent disclosed gel ophthalmic formulations of pilocarpine and brimonidine compounds for treating presbyopia. However, these formulations had limitations, such as inconsistent dosing, pH-dependent degradation, and potential ocular side effects. This new inventive concept addresses these limitations by introducing precision dosing devices, pH-adjusting excipients, novel buffer systems, and soothing agents, enhancing the overall efficacy and safety of the formulations.
Detailed Description of the Inventive Concept
The new inventive concept comprises four key enhancements to the original gel ophthalmic formulations. Firstly, a precision dosing device ensures accurate and consistent dosing, reducing the risk of under- or over-dosing. Secondly, a pH-adjusting excipient optimizes the pH range for maximum bioavailability of the active pharmaceutical ingredients. Thirdly, a novel buffer system minimizes the pH-dependent degradation of the pilocarpine and brimonidine compounds. Lastly, a soothing agent is incorporated to reduce irritation and discomfort associated with the use of these compounds. These enhancements work in synergy to provide better efficacy, safety, and patient comfort in presbyopia treatment.
Novelty and Inventive Step
The new claims introduce several novel and non-obvious features compared to the original patent, including the use of precision dosing devices, pH-adjusting excipients, novel buffer systems, and soothing agents. These features provide a significant improvement over the original formulations, addressing specific limitations and providing better outcomes for patients.
Alternative Embodiments and Variations
Alternative embodiments of the inventive concept could include using different types of precision dosing devices, such as micro-needles or iontophoresis systems. Additionally, various pH-adjusting excipients or buffer systems could be employed to optimize the formulation's performance. Furthermore, different soothing agents or combinations of agents could be used to minimize ocular side effects.
Potential Commercial Applications and Market
The enhanced gel ophthalmic formulations of pilocarpine and brimonidine compounds have significant commercial potential in the ophthalmic industry, particularly in the treatment of presbyopia. The market for presbyopia treatment is growing rapidly, driven by an aging population and increasing demand for effective and safe treatments. This inventive concept addresses a specific need in the market, providing a competitive advantage for companies that develop and commercialize these formulations.
Section 103 Obviousness Analysis (PHOSITA)
Field of Art
Pharmaceutical formulation design, specifically ophthalmic drug delivery systems for treating presbyopia, requiring expertise in pharmaceutical chemistry, drug formulation, and ophthalmological therapeutics
Person of Ordinary Skill (PHOSITA) Profile
A pharmaceutical scientist or formulation engineer with advanced degree in pharmaceutical sciences, experience in ophthalmic drug delivery, knowledge of drug stability, excipient interactions, and dosing technologies
Obviousness Rationale
A PHOSITA would recognize that the PTD's enhancements represent predictable engineering solutions to known limitations in ophthalmic gel formulations. The precision dosing, pH optimization, buffer system, and soothing agent modifications are logical extensions of standard pharmaceutical development practices applied to the existing pilocarpine and brimonidine gel composition. These variations address common challenges in drug delivery and would be considered routine optimization by a skilled practitioner.
Obvious Combinations & Variations
Original Patent Information
| Patent Number | US 11,857,539 |
|---|---|
| Title | Gel ophthalmic formulations of pilocarpine and brimonidine compounds and related methods |
| Assignee(s) | Somerset Therapeutics, LLC |