Self-Emulsifying Oral Topical Composition Bypassing First-Pass Metabolism

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Solution Overview

Problem

Existing treatments for conditions such as erectile dysfunction, type-2 diabetes, and other disorders related to serotonin dysregulation often require injectable forms that are cumbersome and costly, with significant plasma albumin binding and first-pass metabolism reducing efficacy and increasing dosing requirements.

Innovation Solution

A topical composition for transmucosal delivery in the oral cavity, comprising anhydrous suspensions with active agents like tadalafil, vardenafil, and GLP-1 receptor agonists, which self-emulsify to form liposomes and micelles, bypassing plasma albumin binding and first-pass metabolism, enhancing efficacy and reducing dosing needs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If injectable treatments are used for erectile dysfunction and type-2 diabetes, then treatment efficacy is improved, but treatment complexity and cost increase

Engineering Contradiction:
Improvetreatment efficacyVSAvoidtreatment complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces the mechanical injection system with a topical oral composition that delivers active agents through the mucosal membrane. This substitution eliminates needles and injection procedures while maintaining effective drug delivery through the use of permeation enhancers and liposomal carriers that facilitate transmucosal absorption.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces a topical composition as an intermediary delivery system that contains active agents, permeation enhancers, and liposomal carriers. This intermediary system bridges the gap between oral administration and direct bloodstream access, allowing drugs to bypass first-pass metabolism while avoiding injection complexity.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If oral medications are used, then ease of administration is improved, but first-pass metabolism reduces efficacy

Engineering Contradiction:
Improveease of administrationVSAvoidtreatment efficacy
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The topical composition acts as an intermediary that enables oral administration to bypass first-pass metabolism. The composition includes permeation enhancers and liposomal carriers that facilitate direct transmucosal absorption into the bloodstream, maintaining the ease of oral administration while achieving the efficacy of parenteral delivery.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent changes the physical and chemical parameters of the drug delivery system by using liposomal carriers and permeation enhancers. These parameter changes enable the drug to traverse the mucosal membrane directly into the bloodstream, altering the absorption pathway to avoid hepatic first-pass metabolism while maintaining oral administration convenience.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If higher dosing is used to overcome plasma albumin binding, then treatment efficacy is maintained, but dosing requirements and cost increase

Engineering Contradiction:
Improvetreatment efficacyVSAvoiddosing requirements
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The liposomal carriers in the topical composition act as intermediaries that protect active agents from plasma albumin binding. The liposomes serve as protective vehicles that deliver drugs directly to target tissues, reducing the extent of albumin binding and allowing lower dosing requirements while maintaining treatment efficacy.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent changes the binding parameters of the active agents by using liposomal encapsulation. This parameter change reduces the affinity between drugs and plasma albumin, decreasing the amount of drug sequestered by albumin and thereby reducing the total dosing requirements needed to achieve therapeutic effects.

Inventive Principle:
Principle #35Parameter changes

4Reliability

If topical compositions with complex formulations are used, then treatment efficacy is improved, but manufacturing complexity increases

Engineering Contradiction:
Improvetreatment efficacyVSAvoidmanufacturing complexity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent combines multiple functional components (active agents, permeation enhancers, liposomal carriers, and flavoring agents) into a single topical composition. This merging of functions into one formulation simplifies the manufacturing process compared to producing separate products for each function, while maintaining the complex therapeutic effects needed for effective treatment.

Inventive Principle:
Principle #5Merging (Combining)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The topical composition achieves effective treatment of erectile dysfunction, type-2 diabetes, and other conditions with reduced dosing requirements, improved efficacy, and lower patient costs by direct mucosal absorption, mimicking injectable benefits without their drawbacks.

Implementation Method 1

The anhydrous suspension is configured to self-emulsify in an aqueous environment of the oral cavity of the subject to form a mixed micelle and liposome delivery system

Methodology Applied
Scientific EffectSelf-emulsification: Emulsion

Implementation Method 2

transmucosal delivery of the tadalafil or vardenafil within the oral cavity

Methodology Applied
Scientific EffectTransmucosal absorption: Permeation

Data Source

PatentUS20250221990A1Topical administration to the oral cavity
Publication Date: 2025.07.10 CMPD LICENSING LLC
  • US20250221990A1 patent drawing

AI summary

A method of treating erectile disfunction includes administering a pharmaceutically effective amount of a topical composition comprising an anhydrous suspension including tadalafil or vardenafil to an oral cavity of a subject for oral absorption therein. The topical composition is formulated to self-emulsify in an aqueous environment of the oral cavity.