Enhanced Fusion Protein-Based Cancer Treatment System
Legal Citation
Summary of the Inventive Concept
A novel system for cancer treatment that combines a fusion protein dimer comprising CD80 and IL-2 proteins with an anticancer agent, featuring sustained release formulation, modified half-life, and personalized treatment options to enhance immune activity and reduce toxicity.
Background and Problem Solved
The original patent disclosed a pharmaceutical composition for cancer treatment comprising a fusion protein dimer and an anticancer agent. However, the composition's effectiveness was limited by its short half-life, lack of sustained release, and potential toxicity. The new inventive concept addresses these limitations by introducing sustained release formulations, modified half-life, and personalized treatment options to enhance immune activity and reduce toxicity.
Detailed Description of the Inventive Concept
The new system comprises a fusion protein dimer comprising CD80 and IL-2 proteins, which is administered in a sustained release formulation to enhance immune activity over an extended period. The fusion protein dimer can be modified to have a longer half-life, allowing for more efficient treatment. Additionally, the system can be adapted for personalized cancer treatment by detecting and responding to the specific genetic profile of a patient's cancer cells. The system can also be combined with an immune checkpoint inhibitor to further enhance the immune response. Furthermore, the system can be designed to target specific cancer cells and minimize damage to healthy cells, reducing toxicity.
Novelty and Inventive Step
The new claims introduce novel and non-obvious features, including sustained release formulations, modified half-life, and personalized treatment options, which significantly enhance the effectiveness and safety of the original pharmaceutical composition.
Alternative Embodiments and Variations
Alternative embodiments of the system could include different sustained release formulations, such as nanoparticles or liposomes, or different methods for modifying the half-life of the fusion protein dimer. Additionally, the system could be adapted for use with different types of cancer or combined with other therapies, such as chemotherapy or radiation therapy.
Potential Commercial Applications and Market
The enhanced fusion protein-based cancer treatment system has significant commercial potential in the oncology market, with potential applications in various types of cancer, including solid tumors and hematological malignancies. The system's ability to enhance immune activity and reduce toxicity makes it an attractive option for patients and healthcare providers.
CPC Classifications
| Section | Class | Group |
|---|---|---|
| A | A61 | A61K38/2013 |
| A | A61 | A61K31/337 |
| A | A61 | A61K31/444 |
| A | A61 | A61K31/4439 |
| A | A61 | A61K31/47 |
| A | A61 | A61K31/4709 |
| A | A61 | A61K31/502 |
| A | A61 | A61K31/506 |
| A | A61 | A61K31/5025 |
| A | A61 | A61K31/519 |
| A | A61 | A61K31/708 |
| A | A61 | A61K33/243 |
| A | A61 | A61K38/1774 |
| A | A61 | A61K39/3955 |
| A | A61 | A61K45/06 |
| A | A61 | A61P35/00 |
Section 103 Obviousness Analysis (PHOSITA)
Field of Art
Pharmaceutical biotechnology, specifically immunooncology and protein engineering, focusing on fusion protein design for cancer immunotherapy
Person of Ordinary Skill (PHOSITA) Profile
A PhD-level researcher with expertise in protein engineering, immunology, and cancer treatment, familiar with protein modification techniques, drug delivery systems, and targeted therapeutic strategies
Obviousness Rationale
A person of ordinary skill would recognize that the PTD's variations represent predictable extensions of the source patent's core technology, applying standard protein engineering and drug delivery techniques to enhance the existing fusion protein cancer treatment approach. The modifications of sustained release, half-life extension, and targeted delivery are well-established strategies in biotechnology that would be obvious to implement given the source patent's foundational work. The incremental improvements demonstrate routine optimization within the field of cancer immunotherapy.
Obvious Combinations & Variations
Original Patent Information
| Patent Number | US 11,857,601 |
|---|---|
| Title | Pharmaceutical composition for cancer treatment comprising fusion protein including IL-2 protein and CD80 protein and anticancer drug |
| Assignee(s) | GI Innovation, Inc. |