Spinosyn Formulation for Equine Bot Larvae Control

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Solution Overview

Problem

Current treatments for equine bot infestations, such as those caused by Gasterophilus species, face limitations including toxicity, safety concerns, efficacy, resistance issues, and administration challenges, with existing internal therapies requiring frequent dosing and having variable effectiveness.

Innovation Solution

The use of spinosyns, naturally derived fermentation products like spinosyn A and spinosyn D, administered orally in formulations with physiologically acceptable carriers, provides an alternative therapy for controlling or treating bot larvae in the gastrointestinal tract of equine animals, offering improved safety and prolonged efficacy.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If broad spectrum products containing avermectin are used to treat bots, then boticidal activity is achieved, but nematode resistance develops and additional agents are required

Engineering Contradiction:
Improveboticidal activityVSAvoidnematode resistance
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent changes the chemical parameter of the treatment agent from avermectin to spinosyn, a different class of compound with distinct mode of action. This parameter change achieves boticidal activity while avoiding cross-resistance with nematodes, as spinosyns have different target sites and mechanisms compared to avermectins and benzimidazoles.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If current internal therapies are administered frequently to maintain efficacy, then bot control is improved, but administration difficulty and inconvenience increase

Engineering Contradiction:
Improvebot control efficacyVSAvoidadministration convenience
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent uses spinosyn at doses that provide excessive or super-therapeutic levels of boticidal activity, achieving near-complete elimination of bots (90-100% reduction). This excessive action allows for extended treatment intervals because the compound maintains effective concentrations longer and achieves more complete parasite clearance, reducing the frequency of re-dosing needed.

Inventive Principle:
Principle #16Partial or excessive action

3Object-affected harmful factors

If spinosyn is administered orally at low doses, then safety profile is improved, but boticidal efficacy may be reduced

Engineering Contradiction:
Improvetoxicity and safetyVSAvoidboticidal efficacy
Core Design Contradiction:
Object-affected harmful factorsVSReliability

Solution Approach 1:

The patent employs dynamic dosing strategies where spinosyn is administered at optimized doses that balance safety and efficacy. The dosing regimen is adjusted based on the bot infestation level, horse weight, and treatment response, allowing low doses for maintenance or light infestations while permitting higher doses when needed for severe cases, thus dynamically optimizing the safety-efficacy balance.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS9913824B2Methods for internally controlling or treating equine bot larvae
Publication Date: 2018.03.13 AUDEVARD

AI summary

Provided are novel methods and formulations for orally controlling bot larvae in the gastrointestinal tract of equine animal using a spinosyn.