Tetrandrine Free Base Formulation for Rapid Absorption
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Solution Overview
Problem
Current pharmaceutical formulations of tetrandrine family members, particularly di-acid salts, have limitations in absorption rate compared to their free base forms, which may impact their efficacy in treating diseases like cancer and malaria.
Innovation Solution
Development of pharmaceutical formulations using the free base form of tetrandrine family members, specifically d-tetrandrine, which demonstrates rapid absorption into the bloodstream comparable to di-acid salt forms, facilitating quicker solubilization and bioavailability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If di-acid salt formulations are used, then solubility is improved, but absorption rate is reduced
Solution Approach 1:
The patent changes the chemical form parameter from di-acid salt to free base, which fundamentally alters the pharmacokinetic properties. This parameter change resolves the contradiction by achieving both adequate solubility and rapid absorption rate, as demonstrated by the bioequivalence study showing comparable plasma concentration-time profiles between the two formulations.
2Speed
If free base formulations are used, then absorption rate is improved, but solubility may be reduced
Solution Approach 1:
The patent employs parameter changes by formulating the free base with specific excipients and adjusting formulation parameters to achieve both rapid absorption and adequate solubility. The bioequivalence study confirms that the free base formulation achieves comparable plasma concentrations to the di-acid salt, resolving the solubility concern while maintaining rapid absorption.
3Ease of manufacture
If conventional formulations are used, then manufacturing simplicity is maintained, but pharmacokinetic efficacy is reduced
Solution Approach 1:
The patent changes the formulation parameter from conventional di-acid salt to free base, which improves pharmacokinetic efficacy while maintaining manufacturing feasibility. The study demonstrates superior plasma concentration-time profiles for the free base formulation, achieving bioequivalence with the di-acid salt and thereby improving reliability without significantly complicating manufacturing.
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
The free base formulations of tetrandrine achieve substantial and sustained plasma concentrations, showing bioequivalence to di-acid salt forms, thereby enabling effective treatment of cancer and other diseases with improved pharmacokinetic profiles.
Implementation Method 1
the salt forms are used in formulating pharmaceutical compositions. The active ingredient thus solubilizes more quickly and enters the bloodstream faster
Data Source
AI summary
Drug formulations, methods and their use in treatment of diseases using the free base formulations of tetrandrine family members, especially d-tetrandrine, combined with a pharmaceutical diluent or carrier.