Chemosensitivity of rectal cancer is not discussed clearly. With previous study, the investigators design this phase II trial to explore the effect of 2 cycles Xelox chemotherapy,so as to explore the early detection of sensitivity of tumor. With inclusion of early,intermediate,and bad stage II/III rectal cancer patients, four cycle of Xelox chemotherapy was given. After the second cycle, MRI,TRUS,DE,endoscopy,and blood DNA test was down to compare with these characteristics of four cycles.so that to detect the data about the chemosensitivity of tumor in the early stage.
Chemosensitivity of rectal cancer is not discussed clearly. With previous study, the investigators design this phase II trial to explore the effect of 2 cycles Xelox chemotherapy,so as to explore the early detection of sensitivity of tumor. With inclusion of early,intermediate,and bad stage II/III rectal cancer patients, four cycle of Xelox chemotherapy was given. After the second cycle, MRI,TRUS,DE,endoscopy,and blood DNA test was down to compare with these characteristics of four cycles.so that to detect the data about the chemosensitivity of tumor in the early stage.In future, a phase III trial that explore the effect of radiation or surgery in these chemoresistant patients.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
61
Xelox chemotherapy,that oxaliplatin 130mg/m2 d1,capecitabine 1000mg/m2 twice daily d1-14,every 3 weeks
Guoxue Road 37#,West China Hospital
Chengdu, Sichuan, China
tumor volume
tumor volume measured by MRI
Time frame: At the end of Cycle 2 (each cycle is 3 weeks)
tumor area in endoscopy
tumor area measured in endoscopy
Time frame: At the end of Cycle 2 (each cycle is 3 weeks)
tumor volume
tumor volume measured by MRI
Time frame: At the end of Cycle 4 (each cycle is 3 weeks)
tumor area in endoscopy
tumor area measured in endoscopy
Time frame: At the end of Cycle 4 (each cycle is 3 weeks)
blood DNA test
blood DNA test
Time frame: At the end of Cycle 2 (each cycle is 3 weeks)
blood DNA test
blood DNA test
Time frame: At the end of Cycle 4 (each cycle is 3 weeks)
tumor thickness in TRUS
tumor thickness in TRUS
Time frame: At the end of Cycle 4 (each cycle is 3 weeks)
tumor thickness in TRUS
tumor thickness in TRUS
Time frame: At the end of Cycle 2 (each cycle is 3 weeks)
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