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Surgery Plus Chemo Versus Chemoradiotherapy Followed by Surgery Plus Chemo for Locally Recurrent Rectal Cancer

JCOG1801 is a randomized phase III trial which was initiated in Japan in August 2019 to confirm the superiority of preoperative chemoradiotherapy followed by surgery plus adjuvant chemotherapy for local relapse-free survival over standard treatment, i.e. surgery plus adjuvant chemotherapy, for previously non-irradiated locally recurrent rectal cancer.

S0820, Adenoma and Second Primary Prevention Trial (PACES)

The investigators hypothesize that the combination of eflornithine and sulindac will be effective in reducing the event rate of adenomas and second primary colorectal cancers at three years in patients previously treated for stage 0 to III colon or rectal cancer.

A Trial of Neoadjuvant mXELOXIRI Versus CRT in the EMVI Positive LARC

Extramural Vascular Invasion Positive(EMVI+) is a high risk of distant metastasis for locally advanced rectal cancer(LARC) after resection. The study is to evaluate the efficacy and safety of XELOXIRI as neoadjuvant chemotherapy alone for EMVI+ LARC in contrast to the efficacy of standard Chemoradiotherapy (CRT).

Microbiome and Rectal Cancer

The purpose of our study is to determine if an association exists between the microbiome of those with rectal adenocarcinoma who are complete pathologic responders and those who have a partial or no response to neoadjuvant therapy.

Patient-Derived Organoids for Rectal Cancer

The purpose of this study is to determine the feasibility of establishing patient-derived organoids from pre-treatment rectal adenocarcinoma biopsies.

Organ Preservation Program Using Short-Course Radiation & FOLFOXIRI in Rectal Cancer

The objective is to learn if this treatment approach may safely be used as an alternative to the standard treatment for rectal cancer and to know the quality-of-life in these patients.