Long-Acting Lumateperone Injection With Stable Polymer Release
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Solution Overview
Problem
Formulating a long-acting injectable composition of lumateperone that maintains therapeutically effective plasma levels with minimal side effects and avoids dose-dumping, while being difficult to predict due to various formulation factors.
Innovation Solution
Injectable pharmaceutical compositions of lumateperone or deuterolumateperone dissolved or suspended in a nonaqueous liquid polymeric vehicle, using polymers like poly(lactic acid), poly(glycolic acid), and poly(lactic-co-glycolic acid) copolymers, without microspheres, to achieve stable drug release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If lumateperone is formulated as a long-acting injectable composition, then the duration of action is extended, but the plasma level stability becomes difficult to predict due to various formulation factors
Solution Approach 1:
The patent changes the physical-chemical parameters of the formulation by using nonaqueous solvents (such as N-methyl-2-pyrrolidone, dimethyl sulfoxide, or dimethyl formamide) and specific polymeric vehicles (poly(lactic acid), poly(glycolic acid), or poly(lactic-co-glycolic acid) copolymers) to achieve predictable and stable drug release kinetics. This parameter change resolves the contradiction by making the plasma level stability reliable while maintaining extended duration of action.
Solution Approach 2:
The patent employs composite material systems combining lumateperone with specific polymeric vehicles and nonaqueous solvents. This composite approach allows for controlled drug release over extended periods while maintaining stable plasma levels, thus resolving the contradiction between extended duration of action and plasma level stability.
2Productivity
If the drug release rate is increased to achieve faster therapeutic effect, then the productivity is improved, but dose-dumping occurs causing harmful effects
Solution Approach 1:
The patent creates a dynamic drug release system where the release rate is controlled by the degradation rate of the polymeric vehicle. This dynamic control prevents dose-dumping by ensuring gradual, sustained release of lumateperone, thus resolving the contradiction between productivity and harmful effects.
Solution Approach 2:
The polymeric vehicle acts as an intermediary between the drug and the biological system, controlling the release rate and preventing dose-dumping. This intermediary function resolves the contradiction by mediating the drug release to achieve both therapeutic efficacy and safety.
3Ease of manufacture
If aqueous-based formulations are used, then the ease of manufacture is improved, but the drug stability and release control deteriorates
Solution Approach 1:
The patent changes the solvent parameter from aqueous to nonaqueous (such as N-methyl-2-pyrrolidone, dimethyl sulfoxide, or dimethyl formamide), which improves drug stability and release control while maintaining reasonable manufacturability. This parameter change resolves the contradiction between ease of manufacture and drug stability.
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
Provides sustained drug delivery with reduced side effects and avoids dose-dumping, maintaining optimal plasma levels for extended periods.
Implementation Method 1
lumateperone or deuterolumateperone or tetradeuterolumateperone, in free, or pharmaceutically acceptable salt form, dissolved or suspended in a nonaqueous liquid polymeric vehicle
Data Source
AI summary
The present disclosure relates to injectable pharmaceutical compositions comprising lumateperone or deuterolumateperone or tetradeuterolumateperone, in free, or pharmaceutically acceptable salt form, dissolved or suspended in a nonaqueous liquid polymeric vehicle comprising a solvent, devices comprising such compositions, and methods of use thereof in the treatment or prophylaxis of disease.