FDA 483 - Prompt Praxis Laboratories LLC - August 22, 2025

During an inspection conducted from August 20-22, 2025, Prompt Praxis Laboratories LLC, a control testing laboratory located in Vernon Hills, IL, received an FDA Form 483. The inspection highlighted a significant observation concerning the company's quality system, specifically its adherence to established procedures for handling aberrant analytical results. The primary issue identified was the failure of Prompt Praxis Laboratories to consistently follow its own Standard Operating Procedure (SOP) QA-008.04, titled "Evaluation of Aberrant Results in the Analytical Laboratory." This SOP mandates the timely closure of Laboratory Investigation Reports (LIRs) within a specified timeframe. However, the FDA observed that for the year 2025, a substantial number of 74 LIRs remained open beyond the company's own established deadline. This observation indicates that the responsibilities and procedures applicable to the quality control unit are not being fully followed, which is a critical aspect of maintaining data integrity and product quality in a regulated environment. While the FDA Form 483 itself is an advisory document under the Federal Food, Drug, and Cosmetic Act, it signals a need for Prompt Praxis Laboratories to promptly implement corrective actions. The company is expected to address these deficiencies to ensure that all LIRs are closed in a timely manner in accordance with their internal procedures and regulatory expectations, thereby strengthening their overall quality management system.