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Aspects of bioanalytical method validation for the quantitative determination of trace elements
Keith E Levine1, Christopher Tudan, Peter M Grohse
1RTI International, Research Triangle Park, NC 27709, USA.
This paper offers guidance on validating bioanalytical methods for trace element analysis, crucial for drug development and regulatory submissions. It focuses on inductively coupled plasma techniques to ensure reliable data for pharmacokinetic and bioequivalence studies.
Area of Science:
- Analytical Chemistry
- Pharmacokinetics
- Biotechnology
Background:
- Bioanalytical methods are essential for quantifying substances in biological samples for drug development.
- Method validation ensures data reliability for pharmacokinetic and bioequivalence studies supporting regulatory submissions.
- Current regulatory guidance may not fully address the specific challenges of trace element analysis.
Purpose of the Study:
- To provide guidance on validating bioanalytical methods for trace element determination.
- To address the nuances of trace element analysis in biological matrices.
- To offer recommendations from the authors' perspective.
Main Methods:
- Focuses on two key instrumental techniques: inductively coupled plasma-optical emission spectrometry (ICP-OES) and inductively coupled plasma-mass spectrometry (ICP-MS).
- Discusses the rigorous method validation process required for bioanalytical assays.
- Highlights the importance of generating reliable and reproducible data.
Main Results:
- Presents a framework for trace element bioanalytical method validation.
- Discusses specific considerations for ICP-OES and ICP-MS in trace element analysis.
- Emphasizes the need for method validation that meets or exceeds regulatory expectations.
Conclusions:
- Trace element bioanalytical method validation requires specific considerations beyond general bioanalytical guidance.
- ICP-OES and ICP-MS are powerful techniques for trace element analysis, but their validation needs careful attention.
- Adherence to robust validation protocols ensures the quality of data for regulatory submissions.
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