Active clinical trials for "Colorectal Neoplasms"

This study will evaluate the efficacy and safety of adding bevacizumab to crossover fluoropyrimidine-based chemotherapy in patients with metastatic colorectal cancer who have experienced disease progression under first line treatment with standard chemotherapy plus bevacizumab. Participants will receive chemotherapy alone, or in combination with bevacizumab. The anticipated time on study treatment is until disease progression or unacceptable toxicity occurs. Participants are allowed to continue on bevacizumab, even after stopping chemotherapy.

This is an exploratory phase 1b/2, global, multicenter, single-arm, 2-part (phase 1b and 2) study of conatumumab in combination with panitumumab in patients with Metastatic Colorectal Cancer.

RATIONALE: Drugs used in chemotherapy work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Monoclonal antibodies, such as cetuximab, can block tumor growth in different ways. Some block the ability of tumor cells to grow and spread. Others find tumor cells and help kill them or carry tumor-killing substances to them. It is not yet known whether giving combination chemotherapy together with intermittent cetuximab is more effective than combination chemotherapy given together with continuous cetuximab in treating colorectal cancer. PURPOSE: This randomized phase II trial is studying giving combination chemotherapy together with intermittent cetuximab to see how well it works compared to combination chemotherapy given together with continuous cetuximab as first-line therapy in treating patients with advanced or metastatic colorectal cancer.

S-1 is an oral fluoropyrimidine with demonstrated efficacy on gastric cancer and colorectal cancer. The new regimen with Oxaliplatin and leucovorin is expected to achieve more encouraging efficacy on colorectal cancer. This study is to explore the feasibility of the SOL regimen on efficacy and tolerability on Chinese colorectal cancer patients.

The purpose of this study is to evaluate the safety and immunogenicity of a CEA DNA immunisation approach in patients with colorectal cancer. The DNA plasmid, tetwtCEA, encodes wild type human CEA fused to a tetanus toxoid T helper epitope. The vaccine will be delivered using an intradermal electroporation device, Derma Vax (Cyto Pulse Sciences). The following will be assessed: The efficiency of priming immunological responses to CEA by intradermal administration of CEA DNA in combination with electroporation. The efficiency of boosting immunological responses to CEA by intradermal administration of CEA DNA in combination with electroporation in subjects already vaccinated with CEA DNA. GM-CSF will be administered to half of the subjects primed with CEA DNA in combination with electroporation and any possible adjuvant effects of GM-CSF will be evaluated.

Italian, multicentre, non comparative trial in patients with advanced Colorectal Cancer(CRC)and KRAS wild-type, defined by molecular evaluation. Patients will receive Cetuximab + FOLFIRI until disease progression, unacceptable toxicity developed or patient refusal. The aim of this study is to assess the prognostic role of PTEN in terms of Progression free survival. Although the role of Cetuximab as first line treatment in metastatic CRC will be soon established, it is still unclear which is the best schedule for Cetuximab and the role of biological factors in order to select the most appropriate subset of pts for recommending Cetuximab. The data supporting a benefit of Cetuximab in KRAS wild-type pts open the perspective to study the role of other molecular markers in this subset of pts. On the basis of these considerations this study is aimed at testing a different schedule of Cetuximab and better characterize the prognosis of pts for which Cetuximab is appropriate.

Measuring tumor response to treatment based on computed tomography (CT) and/or magnetic resonance imaging (MRI) has been a widely debated issue (response criteria in solid tumors [RECIST] and World Health Organization criteria). Furthermore, early identification of nonresponding patients is of great importance because the rates of response of common malignant solid tumors to chemotherapy are in the range of only 20-30%. Therefore, quantitative imaging of tumor metabolism with 18F-FDG PET/CT may provide important advantages and thus reduce side effects and costs of ineffective therapy. However, the evidence to date for the use of 18F-FDG-PET/CT with this indication is limited. The purpose of the present trial is to determine the impact of 18F-FDG PET/CT in the management of advanced colorectal cancer. The aim is also to confirm whether a metabolic response can be used as a surrogate end point in monitoring treatment response in this cancer type. The study consists of 40 patients with advanced colorectal cancer patients. All patients will be studied with 18F-FDG PET/CT combined with diagnostic contrast enhanced abdominal CT before the start of chemotherapy and re-evaluated 4-5 weeks after the initiation of therapy. Effect of this metabolic and anatomic change in therapy are evaluated and correlated to survival, morbidity, and treatment -related costs. Histopathologic confirmation of response is evaluated whenever possible. The data will be collected between 2008 and 2012.

Research has shown that anti-angiogenic agents can be effective therapies to treat cancer. Anti-angiogenic agents target the blood vessels required for tumors to grow. Vascular endothelial growth factor (VEGF) is one of the cell pathways used for this blood vessel growth. When the investigators interfere with the VEGF pathway, the investigators inhibit this blood vessel growth which is required by tumors. One of the study drugs being used, tivozanib (AV-951), selectively interferes with the VEGF pathway. The second study drug being used, everolimus (RAD001) interferes with the mTOR pathway. The mTOR pathway is another pathway involved in blood vessel and tumor cell growth. By combining these two drugs the investigators hope to slow or reverse tumor cell growth in patients whose tumors have become resistant to other therapies for their disease.

The purpose of this study is to determine the efficacy of CT-322 comparative to bevacizumab, both in combination with irinotecan, 5-FU and leucovorin in the second-line treatment of subject with metastatic colorectal cancer

The primary objective of the study is to estimate the progression-free survival rate at 12 months for the two arms of the study. Secondary objectives include the evaluation of overall objective response rate to treatment, progression-free survival, overall survival, safety and documentation of potential immunogenicity of aflibercept. This study was a non-comparative randomized trial and was not powered for a comparison of any of the efficacy endpoints. Rather, the aim of the trial was to get, for all endpoints, an estimation of the efficacy and safety of aflibercept combined with a modified FOLFOX6 regimen. In such type of non-comparative randomized trial, the control FOLFOLX6 arm was intended to only act as a check on the similarity of the current patients to the historical controls with respect to clinical outcome when given FOLFOX6 treatment.