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CapeOX perioperative chemotherapy versus postoperative chemotherapy for locally advanced resectable colon cancer: protocol for a two-period randomised controlled phase III trial.

ABSTRACT: INTRODUCTION:Adjuvant chemotherapy with the CapeOX regimen is now widely used for treating colorectal cancer. However, prior studies have demonstrated better efficacy of pre-operative/neoadjuvant chemotherapy without increase of safety risks. METHODS AND ANALYSIS:This multicentre, open-label, parallel-group, randomised, controlled, phase III study aims to compare the efficacy and safety of perioperative CapeOX chemotherapy with the postoperative one for treating patients with locally advanced R0 resectable colon cancers in China. In total 1370 eligible patients will be randomised to: the test group, up to four cycles (every 3 weeks is a cycle, Q3W) of chemotherapy plus radical surgery plus up to four cycles of post-operative chemotherapy; or the control group, radical surgery first, then up to eight cycles of chemotherapy. In each cycle, oxaliplatin will be given at a dose of 130 mg/m2 through continuous IV infusion for 2 hours on the first day. From day 1 to day 14, capecitabine will be taken orally every morning and evening at a dose of 1000mg/m2/d. The primary outcome measure is the 3-year disease free survival. The objective response rate, R0 resection rate, overall survival, as well as the adverse events will also be measured as second endpoints. The study may include two periods. If results of period 1 are not favourable, period 2 will be initiated, recruiting genetically sensitive patients and repeating the same process with period 1. ETHICS AND DISSEMINATION:Informed consent will be required from, and provided, by all subjects. The study protocol has been approved by the independent ethics committee of Shanghai Fudan University Cancer Centre. This study will clearly demonstrate the potential benefit of perioperative chemotherapy with the CapeOX regimen. Results will be shared among all the participating centres, and with policymakers and the academic community to promote the clinical management of colon cancer. TRIAL REGISTRATION NUMBER:NCT03125980.

SUBMITTER: Liu F

PROVIDER: S-EPMC6352769 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature

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CapeOX perioperative chemotherapy versus postoperative chemotherapy for locally advanced resectable colon cancer: protocol for a two-period randomised controlled phase III trial.

Liu Fangqi F Tong Tong T Huang Dan D Yuan Weitang W Li Dechuan D Lin Jianjiang J Cai Sanjun S Xu Ye Y Chen Wenbin W Sun Yueming Y Zhuang Jing J

BMJ open 20190129 1

<h4>Introduction</h4>Adjuvant chemotherapy with the CapeOX regimen is now widely used for treating colorectal cancer. However, prior studies have demonstrated better efficacy of pre-operative/neoadjuvant chemotherapy without increase of safety risks.<h4>Methods and analysis</h4>This multicentre, open-label, parallel-group, randomised, controlled, phase III study aims to compare the efficacy and safety of perioperative CapeOX chemotherapy with the postoperative one for treating patients with loca ...[more]

PMID: 30700474

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Project description:INTRODUCTION:Neoadjuvant chemotherapy (NACT) is considered the current standard for locally advanced gallbladder cancer (GBC). There is no consensus on the optimal neoadjuvant approach. A pilot study from our institution has shown improved overall survival (OS) and progression-free survival (PFS) with neoadjuvant chemoradiation (NACRT). The present randomised phase III trial is designed to compare NACRT with NACT alone and will test the superiority of chemoradiation in terms of tumour downstaging and improvement in OS. METHODS AND ANALYSIS:Patients with biopsy-proven locally advanced GBC (T3-4) with predefined clinical-radiological features will be randomised to the gemcitabine-based chemotherapy-alone arm or the chemoradiation arm. Patients with resectable disease or with distant metastases will be excluded. The primary end point of the study is to compare OS between the two arms. The secondary end point was to compare PFS, R0 resection rates, acute and late toxicity, postoperative complications and quality of life between the two study arms. The trial is designed to detect an improvement in median OS by 5.5 months in the study arm (11 months in the control group, HR of 0.7) with 80.0% power at a 0.05 significance level. The resultant sample size to achieve this aim is 314 (157 in each arm) over a duration of 5 years with a 10% attrition rate. ETHICS AND DISSEMINATION:The institutional ethics committee has approved this trial and will be routinely monitoring the trial at frequent intervals. The results of the study will be disseminated via peer-reviewed scientific journals, conference presentations and submission to regulatory authorities. REGISTRATION:The trial is registered with Clinical Trials Registry India (CTRI/2016/08/007199) and ClinicalTrials.gov (NCT02867865). This trial aims to assess the superiority of NACRT over NACT in locally advanced GBCs in terms of improvement in OS. The results of this study will define the optimal neoadjuvant approach in locally advanced GBC. TRIAL REGISTRATION NUMBER:NCT02867865; Pre-results.

Project description:BackgroundPatients with borderline resectable pancreatic cancer (BRPC) or locally advanced pancreatic cancer (LAPC) are at high risk of margin-positive resection. Neoadjuvant stereotactic body radiation therapy (SBRT) may help sterilize margins, but its additive benefit beyond neoadjuvant chemotherapy (nCT) is unclear. The authors report long-term outcomes for BRPC/LAPC patients explored after treatment with either nCT alone or nCT followed by five-fraction SBRT (nCT-SBRT).MethodsPatients with BRPC or LAPC from 2011 to 2016 who underwent resection after nCT alone or nCT-SBRT were retrospectively reviewed. Baseline characteristics were compared, and the propensity score with inverse probability weighting (IPW) was used to compare pathologic/survival outcomes.ResultsOf 198 patients, 76 received nCT, and 122 received nCT-SBRT. The nCT-SBRT cohort had a higher proportion of LAPC (53% vs 22%; p < 0.001). The duration of nCT was longer for nCT-SBRT (4.6 vs 2.9 months; p = 0.03), but adjuvant chemotherapy was less frequently administered (53% vs 67.1%; p < 0.001). Adjuvant radiation was administered to 30% of the nCT patients. The nCT-SBRT regimen more frequently achieved negative margins (92% vs 70%; p < 0.001), negative nodes (59% vs 42%; p < 0.001), and pathologic complete response (7% vs 0%; p = 0.02). In the multivariate analysis, nCT-SBRT remained associated with R0 resection (p < 0.001). The nCT-SBRT cohort experienced no significant difference in median overall survival (OS) (22.1 vs 24.5 months), local progression-free survival (LPFS) (13.5 vs. 15.4 months), or distant metastasis-free survival (DMFS) (11.7 vs 16.3 months) after surgery. After SBRT, 1-year OS was 77.0% and 2-year OS was 50.4%. Perioperative Claven-Dindo grade 3 or greater morbidity did not differ significantly between the nCT and nCT-SBRT cohorts (p = 0.81).ConclusionsDespite having more advanced disease, the nCT-SBRT cohort was still more likely to undergo an R0 resection and experienced similar survival outcomes compared with the nCT alone cohort.

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CapeOX perioperative chemotherapy versus postoperative chemotherapy for locally advanced resectable colon cancer: protocol for a two-period randomised controlled phase III trial.

Publications

CapeOX perioperative chemotherapy versus postoperative chemotherapy for locally advanced resectable colon cancer: protocol for a two-period randomised controlled phase III trial.

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