Next-Generation Polyethylene Glycol-Linker-Drug Conjugates for Personalized Medicine and Advanced Therapies

Publication ID: 24-11857635_0010_PTD
Published: October 28, 2025
Category:Future Evolutions & Paradigm Shifts

Legal Citation

pr1or.art Inc., “Next-Generation Polyethylene Glycol-Linker-Drug Conjugates for Personalized Medicine and Advanced Therapies,” Published Technical Disclosure No. 24-11857635_0010_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857635_0010_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. 11,857,635.

Summary of the Inventive Concept

The present inventive concept envisions a next-generation polyethylene glycol-linker-drug conjugate platform, integrating cutting-edge technologies such as nanocarriers, targeting molecules, gene editing tools, and biosensors to revolutionize the field of pharmaceutical technologies and personalized medicine.

Background and Problem Solved

The original patent disclosed a polyethylene glycol-linker-drug conjugate, which, although effective, has limitations in terms of targeted delivery, efficacy, and patient-specific treatment. The present inventive concept addresses these limitations by introducing novel components and functionalities that enable more precise, efficient, and personalized therapies.

Detailed Description of the Inventive Concept

The next-generation polyethylene glycol-linker-drug conjugate comprises a polyethylene glycol residue linked to a drug molecule, which is further linked to a nanocarrier, targeting molecule, gene editing tool, or biosensor. This modular design enables targeted delivery, enhanced efficacy, and real-time monitoring of therapeutic outcomes. The nanocarrier component facilitates increased bioavailability and reduced toxicity, while the targeting molecule ensures specific binding to diseased cells. The gene editing tool enables precise modification of disease-causing genes, and the biosensor detects specific biomarkers for personalized treatment.

Novelty and Inventive Step

The novelty of the present inventive concept lies in the integration of advanced technologies to create a highly versatile and customizable platform for polyethylene glycol-linker-drug conjugates. The inventive step resides in the unexpected combination of these components, which yields a synergistic effect and enables unprecedented levels of precision, efficacy, and personalization in pharmaceutical therapies.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept may include the use of different nanocarrier materials, targeting molecules, gene editing tools, or biosensors. Variations may also involve the conjugation of multiple drugs or the incorporation of additional functionalities, such as imaging agents or immunomodulators.

Potential Commercial Applications and Market

The next-generation polyethylene glycol-linker-drug conjugate platform has vast commercial potential in the pharmaceutical industry, particularly in the areas of oncology, gene therapy, and personalized medicine. The target market includes pharmaceutical companies, research institutions, and hospitals, with potential applications in human health, veterinary medicine, and biotechnology.

CPC Classifications

SectionClassGroup
A A61 A61K47/60
A A61 A61K31/704
A A61 A61P35/00

Field of Art

Pharmaceutical biotechnology, specifically drug delivery systems, polymer-drug conjugates, and targeted therapeutic technologies with a focus on advanced drug formulation strategies

Person of Ordinary Skill (PHOSITA) Profile

A skilled practitioner with advanced degrees in pharmaceutical sciences, chemical engineering, or biomedical engineering, possessing expertise in polymer chemistry, drug conjugation techniques, and nanotechnology-based drug delivery systems

Obviousness Rationale

A person having ordinary skill in the art would recognize the disclosed polyethylene glycol-linker-drug conjugate variations as predictable extensions of the source patent's foundational technology. The PTD's integration of nanocarriers, targeting molecules, and biosensors represents a logical progression of known drug delivery strategies. These modifications would be considered routine optimization and combination of known techniques within the pharmaceutical drug conjugation field.

Obvious Combinations & Variations

Source Patent Element
Polyethylene glycol-linker-drug conjugate with specific drug molecules like adriamycin
PTD Variation
Adding nanocarrier components like liposomes or micelles to enhance drug delivery
Obviousness Reasoning
Nanocarrier-based drug delivery is a well-established technique for improving pharmaceutical bioavailability and targeting, representing a predictable enhancement to existing drug conjugation strategies
Source Patent Element
Conjugate structure allowing attachment of different drug molecules
PTD Variation
Incorporating targeting molecules for specific cell type recognition
Obviousness Reasoning
Targeted drug delivery is a known approach in pharmaceutical sciences for improving therapeutic specificity and reducing systemic toxicity
Source Patent Element
Polyethylene glycol linker enabling molecular modifications
PTD Variation
Integrating gene editing tools like CRISPR-Cas9 into the conjugate structure
Obviousness Reasoning
Combining molecular technologies for enhanced therapeutic intervention is a foreseeable development for a skilled practitioner seeking improved treatment modalities
Source Patent Element
Drug conjugation method with flexible linking chemistry
PTD Variation
Adding biosensor capabilities for real-time therapeutic monitoring
Obviousness Reasoning
Integrating diagnostic and therapeutic functions represents a logical progression in personalized medicine technologies
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857635 and the disclosed variations, a person having ordinary skill in the art would find the claimed polyethylene glycol-linker-drug conjugate configurations obvious and anticipated. The published technical disclosure demonstrates that the claimed innovations represent predictable variations and combinations of known pharmaceutical conjugation techniques, thereby rendering subsequent claims obvious under 35 U.S.C. Section 103.

Original Patent Information

Patent NumberUS 11,857,635
TitleLinker compound, polyethylene glycol-linker conjugate and derivative thereof and polyethylene glycol-linker-drug conjugate
Assignee(s)JenKem Technology Co., Ltd. (Tianjin)