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Capecitabine and Oxaliplatin Plus Bevacizumab as Neoadjuvant Treatment for Untreated Unresectable Liver-only Metastases From Colorectal Cancer

ABSTRACT: To evaluate the overall response rate of patients with previously untreated unresectable liver-only metastases from colorectal cancer treated with neoadjuvant capecitabine and oxaliplatin plus bevacizumab.

DISEASE(S): Metastatic Colorectal Cancer,Colorectal Neoplasms

PROVIDER: 2081464 | ecrin-mdr-crc |

REPOSITORIES: ECRIN MDR

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Project description:Hilar cholangiocarcinoma (CCA) is a difficult malignancy to treat surgically because of its anatomical location and its frequent association with primary sclerosing cholangitis. Neoadjuvant chemoradiotherapy followed by liver transplantation in lymph node-negative patients has been advanced by select liver transplant centers for the treatment of patients with unresectable disease. This approach has most commonly used external-beam radiotherapy in combination with biliary brachytherapy and 5-fluorouracil-based chemotherapy. Our center recently embarked on a protocol using stereotactic body radiation therapy (SBRT) followed by capecitabine in lymph node-negative patients until liver transplantation. We, therefore, retrospectively determined the tolerability and pathological response in this pilot study. During a 3-year period, 17 patients with unresectable hilar CCA were evaluated for treatment under this protocol. In all, 12 patients qualified for neoadjuvant therapy and were treated with SBRT (50-60 Gy in 3-5 fractions over the course of 2 weeks). After 1 week of rest, capecitabine was initiated at 1330 mg/m(2) /day, and it was continued until liver transplantation. During neoadjuvant therapy, there were 35 adverse events in all, with cholangitis and palmar-plantar erythrodysesthesia being the most common. Capecitabine dose reductions were required on 5 occasions. Ultimately, 9 patients were listed for transplantation, and 6 patients received a liver transplant. The explant pathology of hilar tumors showed at least a partial treatment response in 5 patients, with extensive tumor necrosis and fibrosis noted. Additionally, high apoptotic indices and low proliferative indices were measured during histological examinations. Eleven transplant-related complications occurred, and the 1-year survival rate after transplantation was 83%. In this pilot study, neoadjuvant therapy with SBRT, capecitabine, and liver transplantation for unresectable CCA demonstrated acceptable tolerability. Further studies will determine the overall future efficacy of this therapy.

Dataset Information

Capecitabine and Oxaliplatin Plus Bevacizumab as Neoadjuvant Treatment for Untreated Unresectable Liver-only Metastases From Colorectal Cancer

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