C21-Substituted Neuroactive Steroids for GABA Modulation
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Solution Overview
Problem
Current treatments for conditions such as premenstrual syndrome (PMS), postnatal depression, and catamenial epilepsy are inadequate, as existing therapies like progesterone do not consistently provide effective relief and have no clear dose-response relationship, highlighting the need for improved neuroactive steroids that can modulate brain excitability.
Innovation Solution
Development of C21-substituted neuroactive steroids designed to act as GABA modulators, which can be used as therapeutic agents for inducing anesthesia, sedation, and treating various CNS-related disorders, including sleep disorders, mood disorders, and seizure conditions, by administering these compounds in effective amounts through various routes such as oral, subcutaneous, or intravenous methods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing therapies like progesterone are used to treat CNS-related disorders, then treatment coverage is provided, but therapeutic effectiveness is inconsistent and no clear dose-response relationship exists
Solution Approach 1:
The patent modifies the chemical structure of neuroactive steroids by introducing C21 substituents and varying oxidation states at C17, creating a series of analogs with different potencies. This systematic parameter change allows for establishing a clear dose-response relationship while improving therapeutic reliability for treating CNS-related disorders such as PMS, postnatal depression, and catamenial epilepsy.
2Reliability
If neuroactive steroids are developed to modulate brain excitability, then therapeutic benefits for CNS disorders are achieved, but structural complexity of the compounds increases
Solution Approach 1:
The patent divides the neuroactive steroid molecule into functional segments: the core steroid structure and the variable C21 substituent groups. This segmentation allows systematic modification of specific regions (C17 oxidation state, C21 substituents) to optimize therapeutic activity while maintaining the essential pharmacophore, thereby managing structural complexity through modular design.
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
These compounds effectively modulate GABA receptors, providing therapeutic benefits for CNS-related disorders, including sedation, anesthesia, and treating conditions like PMS, postnatal depression, and catamenial epilepsy, offering a more reliable treatment option compared to existing therapies.
Implementation Method 1
GABA regulates the excitability of individual neurons by regulating the conductance of chloride ions across the neuronal membrane
Implementation Method 2
These compounds effectively modulate GABA receptors, providing therapeutic benefits for CNS-related disorders
Data Source
AI summary
Described herein are neuroactive steroids of the Formula (I):or a pharmaceutically acceptable salt thereof; wherein R1, R2, Ra G, X, Y, Z, and n are as defined herein. Such compounds are envisioned, in certain embodiments, to behave as GABA modulators. Also provided are pharmaceutical compositions comprising a compound described herein and methods of use and treatment, e.g., such for inducing sedation and/or anesthesia.