Steroid Dimer Articles for Controlled Drug Release
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Solution Overview
Problem
Current drug delivery systems face challenges such as drug degradation, burst release, low encapsulation efficiency, and unwanted side effects due to the use of carriers or matrices.
Innovation Solution
The development of steroid dimers and articles formed from these dimers, which can be processed into various shapes and forms, allowing for controlled release of the steroid through surface erosion without the need for controlled release excipients.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional carrier systems are used for drug delivery, then drug encapsulation is achieved, but burst release and unwanted side effects occur
Solution Approach 1:
The invention extracts and eliminates the carrier matrix component from traditional drug delivery systems. By using steroid dimers that self-assemble into fibrous structures without requiring external carriers or matrices, the system removes the source of burst release and unwanted side effects while maintaining controlled release functionality.
Solution Approach 2:
The steroid dimers self-assemble into fibrous structures autonomously without requiring external carriers, matrices, or complex formulation excipients. This self-organizing capability enables the system to achieve controlled release through its own structural properties, eliminating the need for traditional carrier systems that cause burst release.
2Reliability
If controlled release excipients are used in drug delivery articles, then release control is achieved, but device complexity and manufacturing complexity increase
Solution Approach 1:
The invention removes controlled release excipients, polymers, and matrices from the formulation. The steroid dimers themselves form the structural basis for controlled release through self-assembly into fibrous articles, eliminating the need for additional complexity-introducing components.
Solution Approach 2:
The formulation consists essentially of only the steroid dimer compound, creating a homogeneous system without multiple excipients, polymers, or matrices. This simplicity in composition directly reduces device and formulation complexity while maintaining sustained release capability through the uniform self-assembled fibrous structure.
3Quantity of substance
If traditional drug delivery systems are used, then drug delivery is achieved, but drug degradation occurs
Solution Approach 1:
The steroid dimers self-assemble into stable fibrous structures that protect the drug payload from degradation. The self-formed fibrous matrix provides a stable environment for drug incorporation and release, eliminating the need for external protective carriers that may themselves degrade or cause drug instability.
4Quantity of substance
If carrier systems with matrices are used, then drug encapsulation efficiency is improved, but encapsulation efficiency actually decreases due to burst release
Solution Approach 1:
The invention eliminates the carrier matrix that causes burst release. By using steroid dimers that self-assemble directly into fibrous structures, the system achieves true encapsulation efficiency without the detrimental effects of matrix-based carriers that lead to premature drug release.
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 enables a sustained and uniform release of steroids over an extended period, minimizing burst release and side effects associated with traditional carrier systems, while maintaining high drug loading and local effectiveness.
Implementation Method 1
In some embodiments, the compound, D1, or D2 are released from the article through surface erosion.
Data Source
AI summary
The disclosure features pharmaceutical compositions formed from prodrug dimers for the extended delivery of a drug and for the treatment of a disease or condition.