Ospemifene Bioavailability via Food-Induced Bile Acid Secretion
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Solution Overview
Problem
Ospemifene, a selective estrogen receptor modulator, has low aqueous solubility and bioavailability when administered orally, requiring high doses to achieve therapeutic effects, and existing methods do not effectively enhance its absorption.
Innovation Solution
Administering ospemifene in conjunction with food intake, particularly during or shortly before/after eating, significantly increases its bioavailability, regardless of the meal's high or low fat content, potentially due to bile acid secretion stimulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If ospemifene is administered orally in fasting conditions, then the administration is simple and convenient, but the bioavailability is low requiring high doses
Solution Approach 1:
The patent changes the physiological parameter of gastric environment by introducing food (particularly fatty food) to alter the solubility and absorption characteristics of ospemifene. This transforms the absorption environment from a fasting state with low bioavailability to a fed state with enhanced bioavailability, resolving the contradiction between administration convenience and drug absorption efficiency
2Reliability
If the dose is increased to compensate for low bioavailability, then therapeutic effect is achieved, but the risk of side effects increases
Solution Approach 1:
By changing the absorption environment parameter (from fasting to fed state), the patent achieves the same therapeutic effect at lower doses. The enhanced bioavailability in the fed state means that lower quantities of the drug are needed to reach therapeutic thresholds, thereby reducing the risk of dose-dependent side effects while maintaining therapeutic reliability
3Quantity of substance
If ospemifene is administered with food, then bioavailability increases 2-3 fold, but the administration timing becomes more complex
Solution Approach 1:
The patent leverages the patient's existing daily routine of eating meals to naturally provide the optimal absorption environment. Rather than requiring special administration protocols or complex timing schedules, the drug simply needs to be taken with or after a regular meal, which the patient already consumes. This self-service approach uses the patient's own behavior to achieve enhanced bioavailability without adding administrative complexity
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 method enhances ospemifene bioavailability by 2-3 fold compared to fasting conditions, allowing for potentially lower therapeutic doses and improved treatment efficacy for menopausal symptoms and osteoporosis prevention.
Implementation Method 1
potentially due to bile acid secretion stimulation
Data Source
AI summary
This invention relates to a method for enhancing the bioavailability of a therapeutically active compound of the formula (I)or a geometric isomer, a stereoisomer, a pharmaceutically acceptable salt, an ester thereof or a metabolite thereof, wherein said compound is administered orally to the individual in connection with the intake of food.