OnCo
termsTerm

Chemoradiation (chemoradiotherapy, CRT)

aka chemoradiotherapy, chemo-radiotherapy, chemoradiation, definitive chemoradiation, concurrent chemoradiation, concurrent chemoradiotherapy, sequential chemoradiation, radiochemotherapy, trimodality therapy, trimodality, bimodality

Radiotherapy given at the same time as chemotherapy, which makes the radiation work better. It is the curative treatment for many cancers that cannot or should not be operated on.

Concurrent chemoradiation (usually with cisplatin, or 5-FU and mitomycin, or carboplatin-paclitaxel) is definitive treatment for cervical, anal, laryngeal and oropharyngeal cancers, stage III lung cancer (followed by durvalumab, PACIFIC), glioblastoma (with temozolomide) and bladder preservation (trimodality with TURBT), and is preoperative in oesophageal (CROSS) and rectal cancer. Concurrent beats sequential in most comparisons at the cost of more acute toxicity (mucositis, oesophagitis). Chemotherapy acts as a radiosensitiser rather than for its own systemic effect, so doses are lower than in systemic regimens.

Category
Treatment jargon

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