Therapeutic or Preventive Procedure
biological therapy Audio
bi·o·log·i·cal ther·a·py [ bahy-uh-loj-i-kuhl ther-uh-pee ]
Subclass of:
Therapeutic procedure
Definitions related to biological response modifier therapy:
  • (biological therapy) A type of treatment that uses substances derived from or made by living organisms to treat disease; this includes both naturally occurring and synthetic products.
    NCI
    U.S. National Cancer Institute, 2021
  • (biological therapy) Treatment of diseases with biological materials or biological response modifiers, such as the use of GENES; CELLS; TISSUES; organs; SERUM; VACCINES; and humoral agents.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • Treatment to boost or restore the ability of the immune system to fight cancer, infections, and other diseases. Also used to lessen certain side effects that may be caused by some cancer treatments. Agents used in biological therapy include monoclonal antibodies, growth factors, and vaccines. These agents may also have a direct antitumor effect.
    NCI Dictionary of Cancer Terms
    U.S. National Cancer Institute, 2021
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