Skip to main content Skip to search Skip to main navigation

FDA: Revised Guideline on OOS Results

The US FDA has revised its 16-year-old guidance on how to investigate out-of-specification (OOS) test results in laboratories. The document includes all necessary steps to be taken when investigating OOS test results. It also considers the responsibilities of the analyst and the laboratory supervisor in case of OOS results being identified, along with additional testing steps and a final evaluation of all results.

The term OOS results according to the FDA includes all test results that fall outside the specifications or acceptance criteria established in drug applications, drug master files (DMFs), official compendia, or by the manufacturer. The term also applies to all in-process laboratory tests that are outside of established specifications. The 17-page guideline follows a clear step-by-step approach in close linkage with 21 CFR 211 on

  • Identifying and Assessing OOS Test Results — Phase I: Laboratory Investigation
  • Investigating OOS Test Results — Phase II: Full-scale OOS Investigation
  • Concluding the Investigation

Source:

FDA: Investigating OOS Test Results for Pharmaceutical Production

Meet the GMP Compliance Adviser

The GMP Compliance Adviser is the world's largest knowledge portal for quality management in the pharma business. 

The demo access is non-binding and ends automatically.

Test it now for free

You may also be interested in the following articles:

EMA: Revision of Annex 6 - Manufacture of Medicinal Gases

EMA: Revision of Annex 6 - Manufacture of Medicinal Gases

EMA and PIC/S have published a concept paper announcing a targeted revision of Annex 6 Manufacture of Medicinal Gases of the EU GMP Guide. The last update dates from 2010. The revision aims to reflect current manufacturing practice, technological progress and lessons learned from the COVID-19 pandemic.

Read more
EMA: Concept Paper on the Revision of Annex 15

EMA: Concept Paper on the Revision of Annex 15

EMA and PIC/S have published a concept paper outlining a targeted revision of Annex 15 (Qualification and Validation).

Read more
What do Typical Manufacturing Processes for Sterile Products look like?

What do Typical Manufacturing Processes for Sterile Products look like?

Here's the answer:
Read more
Human Resource Management as a Key to Success

Human Resource Management as a Key to Success

The pharmaceutical industry in Germany and other countries, too, faces considerable challenges in the area of human resource management. These problems have far-reaching implications for the competitiveness and innovative power of the industry.

Read more
EMA: Reflection Paper on the Qualification of Non-Mutagenic Impurities (NMIs)

EMA: Reflection Paper on the Qualification of Non-Mutagenic Impurities (NMIs)

The EMA has published a new reflection paper outlining its current thinking on the qualification of non-mutagenic impurities (NMIs). The paper addresses recommended approaches for evaluating the safety of new or increased impurity levels, particularly when such impurities exceed the ICH Q3A/Q3B qualification thresholds and are identified after completion of non-clinical toxicology studies.

Read more
EMA: Discussions on the Revised ERA Guideline

EMA: Discussions on the Revised ERA Guideline

During the second industry stakeholder webinar on the revised guideline on environmental risk assessment (ERA) for medicinal products for human use, the European Medicines Agency (EMA) addressed key implementation challenges observed during the first year of application.
Read more
Previous
Next