Improper Written Specifications Lead To Warning Letter
Batch records should be complete
This warning letter is interesting as it details some of FDA’s thinking on test methods. Upon my initial reading of this letter, it seemed like FDA had an issue with HPTLC, but the problem was actually how the specification was written.
HPTLC is mentioned in this letter. Here FDA states that HPTLC is not a parameter that can be tested to. More information is needed, such as the plant’s genus, species, and the plant part.
From warning letter: “HPTLC” is not a qualitative or quantitative parameter to which a test result can be compared to verify the identity of the component.”
Thanks to my friends at Alkemist Labs for talking this through with me. Your expertise is very appreciated!
This is a shortened version of Warning Letter Wednesday as I’m currently attending Supplyside West. If you are here and want to discuss consulting or Apex Compliance™, let me know.
There are also other GMP violations in the letter, such as incomplete batch records. This example FDA cites the company for not having cleaning records. When I was a manufacturer, we would attach cleaning records to each batch record. As FDA notes below, this is not needed, but cross-referencing this information is required.
From warning letter: “Your batch production record fails to include the date and time of the maintenance, cleaning, and sanitizing of the equipment and processing lines used in producing the batch or a cross-reference to records, such as individual equipment logs, where this information is retained.”
I recommend reading the full warning letter, as there are other labeling and testing citations that provide good learning opportunities.
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