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Concurrent chemoradiotherapy (CRT)
- Radiotherapy 25 ㏉/5 fractions (start concomitantly at D1)
- ↓ ↓ ↓ ↓ ↓
- Radical surgery 6 weeks after completion of chemoradiotherapy
- ↑ ↑ ↑ ↑ ↑ D1 - - - - - D5
- 5-Fluorouracil 400㎎/㎡/day + LV 20㎎/㎡/day IV bolus during the radiotherapy
Radiotherapy using tomotherapy is delivered in 5 Gy daily fractions for a total of 25 Gy in 5 fractions.
A bolus injection of 5-fluorouracil (400 mg/m2/d)and leucovorin (20 mg/m2/d) is delivered concurrently on day 1-5 during radiotherapy.
Total mesorectal excision is performed within 6±2 weeks. The pathological response of downstaing is the study endpoint.
Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
Radiation: short-course preoperative chemoradiotherapy
National Cancer Center Korea
Korea, Republic of
National Cancer Center, Korea
Published on BioPortfolio: 2014-08-27T03:13:27-0400
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Preoperative chemoradiotherapy (CRT) is a standard therapy for locally advanced rectal cancer; however, the response varies depending on cases. Therefore, CRT-response predictors need to be elucidated...
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Short-lived elementary particles found in cosmic radiation or produced from nuclear disintegration. Their mass is between that of protons and electrons and they can be negative, positive, or neutral. pi-Mesons (pions) are heavier than mu-mesons (muons) and are proposed for cancer radiotherapy because their capture and disintegration by matter produces powerful, but short-lived, secondary radiation.
Combined chemotherapy and radiotherapy given to augment some other form of treatment such as surgery. It is commonly used in the therapy of cancer.
Tumors or cancer of the RECTUM.
Electromagnetic or corpuscular radiation capable of producing ions, directly or indirectly, in its passage through matter. The wavelengths are equal to or smaller than those of short (far) ultraviolet radiation and include gamma and X-rays and high-energy elementary particles.
Abnormal accumulation of lymph in the arm, shoulder and breast area associated with surgical or radiation breast cancer treatments (e.g., MASTECTOMY).
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Head and neck cancers
Cancer can occur in any of the tissues or organs in the head and neck. There are over 30 different places that cancer can develop in the head and neck area. Mouth cancers (oral cancers) - Mouth cancer can develop on the lip, the tongue, the floor...