HPLC in FDA Warning Letters

Recommendation
10/11 September 2025
In the current compilation of Warning Letters issued between 2009 and 2011 we have summarised for you the key points regarding the use of high performance liquid chromatography (HPLC).
The inspection focuses can be summarised and compiled in the following 4 themes:
- Raw Data / Protection of Electronic Records
- Calibration / Qualification
- Method Validation
- System Suitability / Sequences
Author:
Dr Günter Brendelberger
CONCEPT HEIDELBERG (a service provider entrusted by the ECA Foundation)
Related GMP News
14.07.2025Inadequate Sampling and Component Testing Highlighted in FDA Warning Letter
14.07.2025EMA publishes new Product-Specific Bioequivalence Guidance
14.07.2025Revision of USP Chapter <1039> Chemometrics Published for Comments
14.07.2025Proposal for new USP Chapter <318> NMR Monomer Ratio Determination for Lactide-Glycolide Polymers
14.07.2025New USP Chapter <1221> on Ongoing Procedure Performance Verification (OPPV) Published for Comment
02.07.2025FDA Warning Letter: Missing Testing, No Stability Data, and Inadequate Raw Material Controls