Healthcare Workers

Antineoplastic Agents Risk Factors

Key points

  • While antineoplastic agents (cancer chemotherapy and cytotoxic drugs) can be lifesaving for cancer patients, exposure can harm healthcare workers.
  • Among other things, antineoplastic drugs can cause long-term organ damage, fertility issues, and even cancer.
  • Learn about exposure risks and find resources about the dangers of antineoplastic agents.
Healthcare worker wearing a gown and gloves administers medication in a syringe through a pump.

Overview of risk factors

The adverse health effects associated with antineoplastic agents (cancer chemotherapy and cytotoxic drugs) in patients are well documented. The very nature of antineoplastic agents makes them harmful to healthy cells and tissues as well as the cancerous cells.

Healthcare workers at risk

For cancer patients with a life-threatening disease, there is great benefit to treatment with antineoplastic agents. However, for healthcare workers exposed to antineoplastic agents on the job, precautions are important to eliminate or reduce exposure.

Pharmacists or nurses who prepare and/or administer these drugs have the highest potential for exposure to antineoplastic agents. Other healthcare workers at risk include:

  • Physicians and operating room personnel.
  • Shipping/receiving, custodial, laundry, and waste workers.
  • Veterinary oncology workers.

Health impacts

In addition to acute or short-term effects related to treatment with antineoplastic agents, the following long-term or chronic effects have been documented:

  • Liver and kidney damage.
  • Bone marrow damage.
  • Lung and heart damage.
  • Infertility (temporary and permanent).
  • Effects on reproduction and the developing fetus in pregnant women.
  • Hearing impairment.
  • Cancer.

The International Agency for Research on Cancer (IARC) found a number of antineoplastic agents are associated with cancer in patients. IARC currently lists:

  • Eleven agents and two combined therapies as Group 1 (human carcinogens).
  • Twelve agents as Group 2A (probable human carcinogens).
  • Eleven agents as Group 2B (possible human carcinogens).

Identifying exposures

A number of studies have documented environmental and worker exposure to antineoplastic agents in healthcare settings. In addition, analytical methods, such as measuring the drugs and/or their metabolites in worker urine, help document worker exposure.

Worker exposures

Some of the following biological endpoints are used to evaluate worker exposure:

  • Urine mutagenicity.
  • Chromosomal damage.
  • Sister chromatid exchange.
  • Micronuclei induction.
  • DNA damage.
  • HPRT mutations.
  • Thioether excretion.

Environmental exposures

Similar analytical methods measure the level of environmental contamination in the workplace. Although limited studies on air sampling exist, there have been numerous studies published on environmental wipe sampling for these drugs.

Preventing exposures

In September 2004, The National Institute for Occupational Safety and Health (NIOSH) published an Alert: Preventing Occupational Exposures to Antineoplastic and Other Hazardous Drugs in Health Care Settings, 2004, (DHHS (NIOSH) Publication No. 2004-165). This topic page is an expanded bibliography of related publications drawn from the published literature related to the Alert.

Additional information on this topic can be found on the NIOSH Hazardous Drug Exposures in Healthcare page.

Resources

In addition to the resources below, you can explore the NIOSH Hazardous Drugs Resources page or see the NIOSHTIC-2 database search results on Antineoplastic Agents/Chemotherapy. NIOSHTIC-2 is a database of occupational safety and health publications funded in whole or in part by NIOSH.

Decontamination and deactivation

Several reports have dealt with methods for the decontamination and/or deactivation of antineoplastic agents. Although bleach (hypochlorite) is often recommended for the decontamination purposes, it is not effective with all classes of agents. Therefore, it cannot be assumed that cleaning with bleach solutions will destroy all types of antineoplastic agents.

Effects of occupational exposure

There is a limited amount of evidence in the literature concerning occupational cancer related to antineoplastic agents.

Evaluation of protective equipment

The most often used type of protective equipment for handling antineoplastic agents is gloves. Typically, latex and other materials have been employed for this use. However, with the concern over latex allergies, newer materials are being marketed and evaluated for use with these agents. Protective gowns are another piece of equipment that is commonly used in the handling of antineoplastic agents.

Handling guidelines, recommendations, and regulations

Since it was first recognized that occupational exposure to antineoplastic agents posed a potential health risk to workers exposed to these agents, various groups, institutions and agencies around the world have developed and published guidelines or recommendations for handling antineoplastic agents.

Occupational monitoring

Over the past several years, the direct measurement of antineoplastic agents in body fluids of healthcare workers has been employed to assess exposure to these agents. Methods for a number of the more common agents are included in the citations on this page. Currently, these techniques are only used in research settings and not for routine monitoring of healthcare workers.