Meloxicam SBEβCD Composition for Solubility-Limited Pain Relief
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Solution Overview
Problem
Meloxicam, a nonsteroidal anti-inflammatory drug, has poor aqueous solubility, leading to reduced bioavailability and slow onset of pain relief.
Innovation Solution
Formulating meloxicam with sulfobutyl ether β-cyclodextrin (SBEβCD) and bicarbonate to create an inclusion complex, which increases solubility and bioavailability, and combining it with rizatriptan for rapid and sustained pain relief.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If meloxicam is used in conventional formulations, then it provides anti-inflammatory and analgesic activities, but its poor aqueous solubility reduces bioavailability and slows the onset of pain relief
Solution Approach 1:
The patent uses cyclodextrins as intermediary carriers to solubilize meloxicam. The cyclodextrin molecules form inclusion complexes with meloxicam, where the hydrophobic interior of the cyclodextrin ring accommodates the meloxicam molecule while the hydrophilic exterior interacts with aqueous media, thereby enhancing solubility and bioavailability without altering the meloxicam molecule itself
Solution Approach 2:
The patent modifies the physical-chemical parameters of meloxicam by forming inclusion complexes with cyclodextrins. This changes the solubility parameter of meloxicam from poor to improved, and accelerates the dissolution rate, thereby speeding up the onset of action while maintaining the pharmacological activity
2Reliability
If cyclodextrins are used to increase solubility of meloxicam, then bioavailability is improved, but the formulation complexity increases
Solution Approach 1:
The cyclodextrin-meloxicam inclusion complex forms spontaneously in aqueous solution without requiring complex manufacturing processes. The hydrophobic interaction between cyclodextrin and meloxicam drives the complex formation automatically, simplifying the formulation process despite the sophisticated molecular interaction involved
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 combination provides rapid, sustained, and statistically significant pain relief, requiring less rescue medication and improving outcomes in treatment-resistant migraines and other pain conditions.
Implementation Method 1
In aqueous solutions, cyclodextrins can form complexes (i.e., an inclusion complex) with drugs by incorporating the drug into the center/hydrophobic portion of the cyclodextrin ring
Implementation Method 2
cyclodextrin compounds are also known to aggregate around a drug in a micelle-type structure
Data Source
AI summary
Disclosed herein are compositions comprising an NSAID such as meloxicam and/or rizatriptan in combination with a cyclodextrin and/or a carbonate or a bicarbonate. These compositions may be orally administered, for example, to improve the bioavailability or pharmacokinetics of the NSAID for the treatment of pain such as migraine, arthritis, and other conditions. Also disclosed herein are methods of treating pain, such as migraine, comprising administering meloxicam and rizatriptan to a human being suffering from pain, such as migraine. For migraine, these methods may be particularly useful when the meloxicam and rizatriptan are administered while the human being is suffering from an acute attack of migraine pain or migraine aura. In some embodiments, the combination of meloxicam and rizatriptan may be administered in a manner that results in a Tmax of meloxicam of 3 hours or less.