What question did this study set out to answer?

To analyze the incidence and trends of microbial contamination in FDA enforcement reports over 21 years.

January 22, 2026BioTechOpen Access

Microbial Landscape of Pharmaceutical Failures: A 21-Year Review of FDA Enforcement Reports

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Analysis reveals microbial contamination trends in pharmaceutical products, highlighting risks for public health.

To analyze the incidence and trends of microbial contamination in FDA enforcement reports over 21 years.
Reviewed FDA enforcement reports from 2004 to 2025
Identified and classified microbial contaminants
Compared trends in sterile and non-sterile drug recalls
Analyzed patterns of microbial contamination and frequency of various microorganisms
Aspergillus penicilloides and Burkholderia cepacia complex were the most common contaminants
Gram-negative bacteria were more frequently found in non-sterile drugs
A significant rise in recalls due to new species like Bacillus and Acetobacter nitrogenifigens
Many enforcement reports lacked details about the identity of microbial contaminants
Consistent issues with lack of assurance of sterility were identified as a primary concern for recalls

Luis Jiménez (2026) studied this question.

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