Active clinical trials for "Colorectal Neoplasms"

This study evaluates the relationship of biomarker expression and efficacy of bevacizumab plus chemotherapy in patients with unresectable/metastatic colorectal cancer. Before the treatment, the investigators detect the VEGF-A,VEGF-C,VEGF-D,VEGFR-1,VEGFR-2,VEGFR-3 expression in tumor tissue by IHC and detect those protein expression level in plasma by ELISA. After at least 6 weeks treatment, the investigators detect again VEGF-A,VEGF-C,VEGF-D expression level in plasma by ELISA. The aim of the study is to identify whether those biomarkers could predict Bevacizumab efficacy.

Elderly patients have poorer preoperative conditions than younger patients. Therefore, minimally invasive surgery should be an effective treatment method for elderly patients. The investigators conducted a randomized trial that compared laparoscopic surgery and conventional open surgery in elderly patients who were 75 years old or over. The purpose of the present study was to clarify the effect of laparoscopic surgery in elderly patients. In our hypothesis of this trial, laparoscopic surgery is superior to conventional open surgery in short-term results, and same outcome in long -term results. Therefore, laparoscopic surgery would be recommended as standard procedure in an elderly colorectal patient.

The investigators propose to conduct a randomised phase III trial evaluating a maintenance strategy comparing hepatic arterial injection of Yttrium-90 resin microspheres plus continuing simplified chemotherapy with/without targeted therapy versus continuing simplified chemotherapy with/without targeted therapy alone for patient with dominant or exclusive and unresectable liver mCRC controlled after 3-6 months of chemotherapy induction.

RATIONALE: Surgical resection and adjuvant therapy has become the main treatment for resectable colorectal cancer. Treatment with current strategies, however,recurrent rate is high for stage IIIC or R0 resected stage IV. The efficacy and safety of maintenance therapy with capecitabine is still unknown. PURPOSE: This single arm study is exploring surgical resection and adjuvant chemotherapy followed by maintenance therapy with capecitabine to see the efficacy and safety, then to investigate the effect of maintenance therapy for stage IIIC or R0 resected stage IV colorectal cancer.

Open label, randomized, multicenter, phase II study to compare the efficacy, in terms of non-inferiority of progression-free survival (PFS), of maintenance with panitumumab alone (arm B) as compared to panitumumab with 5-fluorouracil (5-FU) and leucovorin (LV) (arm A) following induction treatment with 5-fluorouracil + leucovorin+oxaliplatin (FOLFOX-4) and panitumumab in patients with RAS wild-type, metastatic colorectal cancer. The study involves an induction phase with panitumumab as 1 hour intravenous infusion at the dosage of 6 mg/kg, given every two weeks, plus FOLFOX-4 chemotherapy as standard guidelines. Before start of FOLFOX-4 plus panitumumab, at the time of enrollment, patients will be immediately randomized electronically 1:1 to one of the two maintenance arms. Induction treatment with FOLFOX-4 plus panitumumab will continue until progressive disease, unacceptable toxicity or informed consent withdrawal, or for up to 8 cycles. At the end of induction treatment, in presence of complete or partial response, or stable disease, non-progressing patients will be allocated to one of the two pre-assigned maintenance arms: A) 5-FU/LV (De Gramont regimen) plus panitumumab given at 6 mg/Kg every two weeks until progressive disease, unacceptable toxicity or informed consent withdrawal B) Panitumumab alone given at 6 mg/Kg every two weeks until progressive disease, unacceptable toxicity or informed consent withdrawal Imaging studies (thorax and abdominal CT or MRI scan) will be performed at baseline (4 weeks prior enrollment) and every 8 weeks (4 cycles) during treatment.

The purpose of the study is to evaluate whether the novel anti-cancer drug OXY111A is safe and tolerated in patients with primary and secondary hepato-pancreato-biliary and gastrointestinal neoplasia as measured by exploring the maximum tolerated dose (MTD). At level of MTD, additional patients will be included aimed for assessing the efficacy profile in these neoplasia entities.

The purpose of this study is to evaluate the efficacy of autologous tumor lysate-pulsed dendritic and cytokine-induced killer cells (DC-CIK) for colorectal cancer (CRC).

This is an exploratory biomarker study. Patients with metastatic colorectal cancer will receive regorafenib, which is FDA approved in this setting, on day 1-21 of every consecutive 28 day cycle. Patients will be asked to undergo tumor biopsy at baseline and 2 weeks after starting regorafenib. Peripheral blood samples will be collected at baseline 2 weeks after starting regorafenib, after initiation of cycle 3, and every 4 weeks thereafter.

This study will examine a new combination of drugs: Capecitabine and Oxaliplatin for the treatment of Stage II and III colorectal cancer. Capecitabine and Oxaliplatin are approved by the Food and Drug Administration (FDA) for use in colorectal cancer. The combination of drugs is experimental (not approved by the FDA as standard treatment), but is a widely used treatment option and preliminary studies have shown that treatment with the combination has a positive effect on metastatic colorectal cancer.

This observational study will evaluate Xeloda (capecitabine) monotherapy on the effect of disease-free survival in patients with colon cancer stage III (Duke C) after surgical resection. Data will be collected for 3 years.