Posted Jun. 25, 2014 at 8:31 a.m.

FDA issues guidelines for oversight of nanotechnology

Published: 2014-06-25 08:31:57
Updated: 2014-06-25 08:31:57


Federal regulators want to hear from companies using tiny, engineered micro-particles in their products, part of an effort to stay abreast of the growing field of nanotechnology.

The Food and Drug Administration issued final recommendations Tuesday for companies using nanotechnology in products regulated by the government, which can include medical therapies, food and cosmetics. FDA regulators want companies to consult with them before launching nanotechnology products, though the decision whether to go to market will essentially rest with manufacturers.

The FDA doesn't make a judgment call on the overall safety of nanotechnology or even define the term.

"We are taking a prudent scientific approach to assess each product on its own merits and are not making broad, general assumptions about the safety of nanotechnology products," said FDA Commissioner Margaret Hamburg, in a statement.


FDA Guidances:

  • Final Guidance for Industry: Considering Whether an FDA-Regulated Product Involves the Application of Nanotechnology

The guidance outlines overarching considerations for all FDA-regulated products, identifying points to consider when determining whether a product involves the use of nanotechnology. It is intended to help industry and others identify when they should consider potential implications for regulatory status, safety, effectiveness or public health impact that may arise with the application of nanotechnology in FDA-regulated products. (The full guidance can be read online.)

  • Final Guidance for Industry: Safety of Nanomaterials in Cosmetics

The guidance describes the FDA’s current thinking on the safety assessment of nanomaterials when used in cosmetic products and encourages manufacturers to consult with the FDA on test methods and data needed to support the substantiation of a product’s safety. (The full guidance can be read online.)

  • Final Guidance for Industry: Assessing the Effects of Significant Manufacturing Process Changes, Including Emerging Technologies, on the Safety and Regulatory Status of Food Ingredients and Food Contact Substances, Including Food Ingredients that are Color Additives

The guidance alerts manufacturers to the potential impact of any significant manufacturing process change, including changes involving nanotechnology, on the safety and regulatory status of food substances. This guidance also describes considerations for determining whether a significant manufacturing process change for a food substance already in the market affects the identity, safety, or regulatory status of the food substance, potentially warranting a regulatory submission to the FDA. (The full guidance can be read online.)

  • Draft Guidance for Industry: Use of Nanomaterials in Food for Animals

This draft guidance addresses issues related to the use of nanotechnology in food ingredients intended for use in food for animals. Public comments on this draft guidance are requested by September 10, 2014.
 


Industry groups generally define nanoparticles as those less than 100 nanometers wide. A nanometer is one billionth of a meter. A human hair, for example, is 80,000 nanometers thick, while a sheet of paper is 100,000 nanometers.

These submicroscopic particles have been increasingly showing up in FDA-regulated products, including food packaging, sunscreens, skin lotions and glare-reducing eyeglass coatings. The technology also has potential uses in medicine, though the new FDA documents focus specifically on food and cosmetics.

The guidelines for food makers suggest any manufacturing changes involving nanoparticles could require submitting additional data to show that the changes don't affect the safety or identity of the food. Under longstanding regulations, food companies aren't required to seek regulatory approval for products containing established ingredients and materials, such as caffeine, spices and various preservatives.

But the FDA states that "at this time, we are not aware of any food substances intentionally engineered on the nanometer scale" that would qualify for that category of "generally recognized as safe" additives.

Food companies are studying nanoparticle coatings as a form of preservation and as a way to potentially reduce bacterial contamination in certain foods.

In a separate guidance document, the FDA laid out suggestions for the use of nanotechnology in cosmetics, a common practice in the cosmetics industry since the 1990s. Nanoparticles are used in skin moisturizers, mineral makeup and other cosmetics.

The guidance encourages manufacturers to consult with FDA before testing the safety of nanoparticles used in cosmetics, noting that traditional testing methods may not pick up changes produced by adding nanotechnology.

The FDA generally has less authority over cosmetics than food ingredients. The FDA does not typically review cosmetics before they launch, and companies are responsible for assuring the safety of their products.

 

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