Medical devices; immunology and microbiology devices; classification of the endotoxin assay. Final rule
Related Experiment Video
Updated: Aug 30, 2026

Detection of Endotoxin in Nano-formulations Using Limulus Amoebocyte Lysate (LAL) Assays
Published on: January 30, 2019
Abstract:
The Food and Drug Administration (FDA) is classifying the endotoxin assay into class II (special controls). The agency is taking this action in response to a petition submitted under the Federal Food, Drug, and Cosmetic Act (the act) as amended by the Medical Device Amendments of 1976 (the amendments), the Safe Medical Devices Act of 1990 (SMDA), the Food and Drug Administration Modernization Act of 1997 (FDAMA), and the Medical Device User Fee and Modernization Act of 2002 (MDUFMA). The agency is classifying this device into class II (special controls) in order to provide a reasonable assurance of safety and effectiveness of the device. Elsewhere in this issue of the Federal Register, FDA is announcing the availability of a guidance document that will serve as the special control for the device.
Related Concept Videos
Bacterial Signaling
Microorganisms in Medicine and Therapeutics
Automated Microbial Diagnostics
Cleaning, Sterilization, and Disinfection
Cleaning
The cleaning process usually involves using water with detergents or enzymatic cleaner and removing foreign material from objects and surfaces, including organic material such as body fluids or inorganic material like soil. Cleaning is performed before high-level disinfection and sterilization because foreign materials on the cover of the devices interfere with process...
Physical Methods for Controlling Microbial Growth: Radiation and Filtration
Special Staining Techniques
