Specialized Opioid Antagonist Formulations for Niche Environments

Publication ID: 24-11857547_0009_PTD
Published: October 28, 2025
Category:Specialized Variations & Niche Solutions

Legal Citation

pr1or.art Inc., “Specialized Opioid Antagonist Formulations for Niche Environments,” Published Technical Disclosure No. 24-11857547_0009_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857547_0009_PTD
This technical disclosure describes improvements that would be readily apparent to a Person Having Ordinary Skill In The Art (PHOSITA) when considered in combination with the foundational architecture disclosed in U.S. Patent No. 11,857,547.

Summary of the Inventive Concept

Adapting opioid antagonist formulations for specific, narrow markets or unique operational environments, such as high-security needs, disaster relief, or extreme weather conditions.

Background and Problem Solved

The original patent provides compositions and methods for opioid antagonist delivery, but these formulations may not be suitable for specialized environments. The present inventive concept addresses the limitations of the original patent by developing tailored formulations for high-security, disaster relief, and extreme weather conditions.

Detailed Description of the Inventive Concept

The inventive concept comprises opioid antagonist formulations with specialized excipients, cryoprotectants, or other adaptations to ensure stability and potency in extreme temperatures, tropical environments, or low-light conditions. These formulations can be administered via rapid-dissolve tablets, wearable injector devices, or portable kits with auto-injector devices. The compositions are designed to provide effective opioid overdose rescue in unique operational environments.

Novelty and Inventive Step

The new claims introduce novel adaptations for opioid antagonist formulations, such as specialized excipients for extreme temperatures, cryoprotectants for freeze-dried compositions, and wearable injector devices for remote areas. These adaptations are non-obvious and provide a significant improvement over the original patent's formulations.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include opioid antagonist formulations adapted for use in high-altitude environments, underwater rescue scenarios, or for specific age groups or medical conditions. Variations could also include different routes of administration, such as nasal sprays or transdermal patches.

Potential Commercial Applications and Market

The inventive concept has significant commercial potential in industries such as pharmaceuticals, emergency medical services, disaster relief, and high-security operations. The targeted markets include government agencies, emergency responders, and organizations operating in extreme environments.

Field of Art

Pharmaceutical formulations, specifically opioid antagonist delivery systems and emergency medical interventions, requiring expertise in pharmacology, drug delivery technologies, and emergency medical preparedness

Person of Ordinary Skill (PHOSITA) Profile

A pharmaceutical scientist or clinical pharmacologist with advanced degree, experience in drug formulation, knowledge of parenteral drug delivery, understanding of excipient technologies, and familiarity with emergency medical interventions

Obviousness Rationale

A PHOSITA would recognize that the PTD's variations represent predictable extensions of the source patent's core technology, applying known pharmaceutical formulation techniques to adapt opioid antagonist delivery for specialized environments. The disclosed modifications represent routine engineering adaptations using standard pharmaceutical design principles. The variations demonstrate incremental improvements that would be apparent to a skilled practitioner seeking to optimize drug delivery in challenging contexts.

Obvious Combinations & Variations

Source Patent Element
Parenteral formulation with nalmefene and specific adjuvants like magnesium chloride
PTD Variation
Adding cryoprotectants and specialized excipients for extreme temperature stability
Obviousness Reasoning
Known pharmaceutical technique of modifying excipient composition to enhance drug stability in varied environmental conditions, representing a predictable solution to temperature-related drug preservation challenges
Source Patent Element
Intramuscular injection method for opioid antagonist delivery
PTD Variation
Alternative administration routes including rapid-dissolve tablets, wearable injectors, and nasal sprays
Obviousness Reasoning
Routine pharmaceutical design choice to explore multiple administration methods for the same active pharmaceutical ingredient, motivated by improved patient accessibility and situational requirements
Source Patent Element
Basic opioid antagonist formulation for overdose rescue
PTD Variation
Specialized formulations for high-security, disaster relief, and remote environment scenarios
Obviousness Reasoning
Obvious application of standard pharmaceutical engineering principles to adapt drug delivery for specific operational contexts, utilizing known formulation modification techniques
Source Patent Element
Nalmefene-based parenteral formulation with defined concentration
PTD Variation
Portable kit designs with auto-injector devices for emergency deployment
Obviousness Reasoning
Predictable design evolution applying known medical device integration techniques to enhance emergency drug administration capabilities
Source Patent Element
Pharmaceutical composition for opioid overdose intervention
PTD Variation
Freeze-dried compositions with cryoprotectants for maintaining potency in freezing temperatures
Obviousness Reasoning
Standard pharmaceutical preservation technique using well-established lyophilization and protective agent technologies to extend drug stability
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857547 and the published technical disclosure, a person having ordinary skill in the art would find the claimed variations obvious, as they represent predictable extensions of known pharmaceutical formulation techniques applied to opioid antagonist delivery systems. The disclosed modifications constitute routine engineering adaptations that would be apparent to a skilled practitioner seeking to optimize drug delivery in specialized environments, thereby rendering potential patent claims obvious under 35 U.S.C. Section 103.

Original Patent Information

Patent NumberUS 11,857,547
TitleCompositions and methods for opioid antagonist delivery
Assignee(s)Purdue Pharma L.P.