Otic Antiviral Formulation via Tympanic Membrane Diffusion

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Solution Overview

Problem

Current therapeutic options for treating upper respiratory infections, such as COVID-19, are limited and often require hospitalization, with a need for safe and effective therapeutics that can target the site of infection effectively.

Innovation Solution

The development of an otic application that includes an antiviral agent, such as hemin or remdesivir, combined with oils like Jojoba or eucalyptus, to facilitate transport to the upper respiratory system through the ear, allowing for direct delivery and diffusion across the tympanic membrane.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional therapeutic options are used to treat upper respiratory infections, then treatment coverage is provided, but the treatments require hospitalization and have limited effectiveness

Engineering Contradiction:
Improvetreatment effectivenessVSAvoidhospitalization requirement
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent uses the ear canal and tympanic membrane as an intermediary pathway to deliver antiviral agents directly to the upper respiratory system. The otic application serves as a mediator that transports the therapeutic agent through the intact tympanic membrane into the middle ear space, from which it can access the upper respiratory tract, thereby avoiding the need for hospitalization while maintaining treatment effectiveness

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The invention enables self-administered treatment through otic drops that can be applied at home. The formulation is designed to automatically diffuse through the tympanic membrane and deliver the antiviral agent to the target site without requiring medical professional intervention or hospitalization, making the treatment accessible and easy to administer

Inventive Principle:
Principle #25Self-service

2Reliability

If antiviral agents are administered systemically, then broad coverage is achieved, but the drugs cannot effectively target the upper respiratory system without causing systemic side effects

Engineering Contradiction:
Improvetargeted delivery effectivenessVSAvoidsystemic side effects
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent delivers the antiviral agent locally to the upper respiratory system through the ear pathway, creating a high concentration of the drug at the target site while maintaining low or zero systemic exposure. This localized delivery through the otic application ensures the therapeutic effect is concentrated where needed, minimizing harmful systemic side effects

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The tympanic membrane serves as an intermediary structure that allows selective transport of the antiviral agent from the ear canal to the middle ear and subsequently to the upper respiratory system. This intermediary pathway enables targeted delivery without requiring systemic circulation, thereby avoiding systemic side effects while achieving effective concentrations at the infection site

Inventive Principle:
Principle #24Intermediary (Mediator)

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

This approach effectively delivers antiviral agents to the primary sites of upper respiratory infections, reducing viral replication and associated symptoms, and has shown broad utility against various SARS-CoV-2 variants, including XBB and XBB1.5.

Implementation Method 1

the otic application is configured to diffuse through an intact tympanic membrane of the subject from the ear and deliver the antiviral agent to the upper respiratory system

Methodology Applied
Scientific EffectDiffusion: Diffusion

Data Source

PatentUS12311049B2Formulation of ear drops and methods for delivery thereof for treating upper respiratory infections
Publication Date: 2025.05.27 DHAWAN SUBHASH
  • US12311049B2 patent drawing
  • US12311049B2 patent drawing
  • US12311049B2 patent drawing

AI summary

An otic application for treatment of an upper respiratory infection of an upper respiratory system of a human or animal subject, the otic application including an antiviral agent to inhibit viral replication or infection, and at least one oil to facilitate transport of the antiviral agent to the upper respiratory system of the subject, such that the otic application is configured for use within an ear of the subject for treating the upper respiratory infection within the subject, and such that the otic application is configured to diffuse through an intact tympanic membrane of the subject from the ear and deliver the antiviral agent to the upper respiratory system of the subject, thereby treating the upper respiratory infection.