Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
The purpose of this study is to evaluate the safety and clinical activity of combining DCSZ11 with radiation and capecitabine/oxaliplatin (CAPOX) for the neoadjuvant treatment of patients with mismatch repair proficient (pMMR) high risk locally advanced rectal cancer.
Inclusion Criteria: * Age ≥18 years. * Eastern Cooperative Oncology Group (ECOG) performance status 0 - 1. * Rectal cancer (with tumor tissue present at or below the peritoneal reflection) as determined by MRI pelvis or endoscopic ultrasound. * Have histologically proven mismatch repair proficient (pMMR) or microsatellite stable (MSS) rectal adenocarcinoma. * Must not have received any prior systemic treatment or radiation. * Patients have the following clinical staging: * cT4 any node status * Any T stage cN2 node status * Any T or N status, evidence of suspicious lateral lymph nodes…
Patients will receive a lead in dose of DCSZ11 (1200 mg administered IV). Three weeks after the lead-in dose, DCSZ11 (1200 mg administered IV) will be administered on Day 1 of each 21 day cycle for a total of 6 cycles of treatment.
Patients will receive a short course of radiation (5 Gy for 5 days) two weeks after they receive their lead-in dose of DCSZ11.
Patients will receive Capecitabine (1000mg/m\^2 administered by mouth twice a day) will be administered on Days 1 through 14 of each 21 day cycle for a total of 6 cycles of treatment.
Patients will receive Oxaliplatin (130mg/m\^2 administered IV) will be administered on Day 1 of each 21 day cycle for a total of 6 cycles of treatment.
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