Stable Amine Drug Multiparticulate Coating for Nitrosamine Control
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Solution Overview
Problem
Existing drug products face challenges in controlling nitrosamine drug substance-related impurities (NDSRIs) during manufacturing and storage, which are potentially carcinogenic and require effective control strategies to meet regulatory guidelines.
Innovation Solution
A stable multiparticulate pharmaceutical composition comprising an amine drug and a stabilizing amount of nitrite quencher, where the quencher is incorporated within a modified release coating to control nitrosamine impurities, providing enhanced acid resistance and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a nitrite quencher is added to control nitrosamine impurities, then the purity and safety of the drug product is improved, but the formulation complexity and manufacturing difficulty increase
Solution Approach 1:
A nitrite quencher (such as ascorbic acid, sodium sulfite, or sodium bisulfite) is introduced as an intermediary substance that reacts with nitrite to prevent nitrosamine formation. The quencher acts as a mediator between the amine drug and nitrite, eliminating the harmful nitrosation reaction while maintaining drug efficacy.
Solution Approach 2:
The nitrite quencher is incorporated into the formulation in advance, before nitrosamine impurities can form during manufacturing or storage. This preliminary protective action prevents the formation of carcinogenic nitrosamines by neutralizing nitrite before it can react with the amine drug.
2Stability of the object's composition
If a stable multiparticulate composition with nitrite quencher is developed, then the chemical stability and shelf life are improved, but the manufacturing process complexity increases
Solution Approach 1:
The drug product is divided into multiple discrete particulate units (pellets, beads, or granules), each containing the amine drug and nitrite quencher. This segmentation allows for better stability control in each particle while simplifying the overall manufacturing process through modular production and coating techniques.
Solution Approach 2:
The formulation combines multiple materials including the amine drug, nitrite quencher, and appropriate excipients to create a composite multiparticulate system. This composite structure provides enhanced chemical stability and controlled release properties while maintaining manufacturability through established pharmaceutical coating processes.
3Reliability
If the nitrite quencher is incorporated in the composition, then the control of nitrosamine impurities during storage is improved, but the dosage form complexity increases
Solution Approach 1:
The nitrite quencher is uniformly distributed throughout the multiparticulate dosage form, ensuring consistent protection against nitrosamine formation in all particles. This homogeneous distribution maintains reliable impurity control during storage while preserving a simple and uniform dosage form appearance.
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 composition effectively maintains nitrosamine drug substance-related impurities below 1 ppm, ensuring chemical and physical stability over extended storage periods, and allows for bioequivalent and acid-resistant dosage forms suitable for administration via nasogastric tubes.
Implementation Method 1
The compounds can form by a nitrosating reaction between amines (primary, secondary, tertiary, or quaternary amines) and nitrous acid (nitrite salts under acidic conditions).
Data Source
AI summary
The present disclosure relates to a stable multiparticulate composition comprising coated discrete units of an amine drug or a pharmaceutically acceptable salt thereof, with stabilizing amount of one or more nitrite quencher. The composition provides effective control of the level of nitrosamine drug substance-related impurities (NDSRIs) in the drug product during shelf life of the product.