![](https://webarchive.library.unt.edu/eot2008/20081105145516im_/http://www.cancer.gov/images/spacer.gif) |
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(...THAYR-uh-pee)
![](https://webarchive.library.unt.edu/eot2008/20081105145516im_/http://www.cancer.gov/images/spacer.gif)
| Treatment that is given when both initial treatment (first-line therapy) and subsequent treatment (second-line therapy) don’t work, or stop working. |
Previous Definitions: | thermotherapy, thiethylperazine, thioguanine, thiotepa, third molar | Next Definitions: | thoracalgia, thoracentesis, thoracic, thoracic surgeon, thoracic surgical oncologist |
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![](https://webarchive.library.unt.edu/eot2008/20081105145516im_/http://www.cancer.gov/images/spacer.gif) |