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Pharmaceutical solids: a strategic approach to regulatory considerations
1Department of Medicinal Chemistry and Pharmacognosy, Purdue University, West Lafayette, Indiana 47907, USA.
Pharmaceutical Research
|July 1, 1995
Summary
This review introduces a conceptual framework using decision trees to characterize pharmaceutical solids, including polymorphs and amorphous forms. This approach aims to streamline the development of scientific and regulatory information for faster drug approvals.
Area of Science:
- Solid-state chemistry
- Pharmaceutical sciences
- Materials characterization
Background:
- Characterizing pharmaceutical solids is crucial for drug development and regulatory submissions.
- Understanding solid-state forms impacts drug stability, bioavailability, and manufacturing.
- Current methods can be complex and time-consuming.
Purpose of the Study:
- To present a conceptual approach for the systematic characterization of pharmaceutical solids.
- To introduce decision trees as tools for information development.
- To facilitate a more direct approach to solid-state characterization.
Main Methods:
- Development of four distinct flow charts (decision trees).
- Flow charts cover characterization of polymorphs, hydrates, desolvated solvates, and amorphous forms.
- Conceptual framework for guiding solid-state analysis.
Main Results:
- The proposed flow charts serve as decision trees for characterizing pharmaceutical solids.
- These tools aid in generating comprehensive information for scientific and regulatory use.
- Provides a structured approach to identifying and differentiating solid-state forms.
Conclusions:
- The review advocates for the adoption of these decision trees in pharmaceutical solid characterization.
- Implementation is expected to lead to a more direct and efficient characterization process.
- Aims to expedite the regulatory approval process for drug products.