FDA 483 OBSERVATION · #18 OF 1,923 MOST-CITED
Scientifically sound laboratory controls
FDA cited this observation 877 times across 750 firms in recent inspections. Below: how it breaks down by program area and fiscal year, and real examples of how FDA worded it on Form FDA 483.
What this grouping is not
An observation-type page groups FDA’s published citation records. The grouping, the compliance steps and the root causes are SPEQ synthesis, not an FDA classification of any citation, and a count measures what FDA published rather than risk.
What this observation means, and how to comply
SPEQ's practitioner reading of this finding. The regulatory basis is a cited fact; the interpretation, compliance steps, and root causes are SPEQ synthesis — not an FDA classification of the citation.
Laboratory controls — specifications, standards, sampling plans, and test procedures — were not scientifically sound and appropriate to assure that components, in-process materials, and finished products conform to their identity, strength, quality, and purity.
Why FDA writes it — The laboratory is where the firm proves the product is what it claims to be. If the test methods, sampling, or specifications are not scientifically justified, every release decision built on them is suspect.
- Establish specifications, standards, sampling plans, and test procedures that are scientifically sound and appropriate to the material being tested.
- Validate or verify analytical methods for their intended use, and demonstrate they are stability-indicating where the claim requires it.
- Justify sampling plans statistically or scientifically — a plan that samples too little to represent the batch is not “sound.”
- Keep complete laboratory records, including raw data and all results, so the soundness of a control is auditable.
- Methods carried over from a compendial or legacy source without verifying they suit the specific product and matrix.
- Specifications set to what the process happens to produce rather than to what quality actually requires.
How to close this finding — and stop it recurring
What this observation is associated with
Firms cited for this observation also appear in FDA compliance actions — warning letters, injunctions, or seizures — at 4.6× the rate of the average FDA-cited firm (35.7% vs 7.8%), across 750 FEI-matched firms.
This is an association, not causation, and reflects co-occurrence in FDA's records — not a claim that the observation caused or preceded the action.
How FDA worded it — real examples
Laboratory controls do not include the establishment of scientifically sound and appropriate standards designed to assure that drug products conform to appropriate standards of identity, strength, quality and purity.
Laboratory controls do not include the establishment of scientifically sound and appropriate test procedures designed to assure that drug products conform to appropriate standards of identity, strength, quality and purity.
Laboratory controls do not include the establishment of scientifically sound and appropriate specifications, sampling plans and test procedures designed to assure that components and drug products conform to appropriate standards of identity, strength, quality and purity.
Laboratory controls do not include the establishment of scientifically sound and appropriate specifications and test procedures designed to assure that drug products conform to appropriate standards of identity, strength, quality and purity.
Laboratory controls do not include the establishment of scientifically sound and appropriate specifications, standards, sampling plans and test procedures designed to assure that drug products conform to appropriate standards of identity, strength, quality and purity.
Laboratory controls do not include the establishment of scientifically sound and appropriate specifications designed to assure that components conform to appropriate standards of identity, strength, quality and purity.
Related SPEQ references
Where to read the requirements behind this observation area on SPEQ. These are SPEQ's topic and audience pages — not an FDA classification of the citation.
Examples are a representative sample of FDA's published inspection observations. Open the 483 observation explorer →