Active clinical trials for "Adenocarcinoma"

Trastuzumab plus chemotherapy is an effective therapy in HER2 positive advanced gastric cancer (AGC). However, the efficacy of routine trastuzumab therapy and its association with clinicopathologic factors remain unclear. The object of the study is to determine whether the addition of trastuzumab to first-line chemotherapy improves efficacy compared with chemotherapy alone in HER2 positive AGC.

The hypotheses are: 1) the intestinal stem cell marker, DCLK1, which is increased in both the epithelium and stroma in colon cancer is also increased in BE (Barrett's esophagus) with HGD (high grade dysplasia) and in EAC (esophageal adenocarcinoma), 2) this expression correlates with disease progression towards EAC and 3) eradication of cells expressing stem cell markers occurs after therapy of EMR (endoscopic mucosal resection) or RFA (radiofrequency ablation) to eradicate BE with HGD and intramucosal adenocarcinoma and esophagectomy for EAC. We will test our hypotheses with the following aims: 1) To characterize the cell specific expression patterns of intestinal stem cell biomarkers in BE patients and correlate them with serum expression and disease progression, 2) To examine prospectively the effects of EMR, RFA or esophagectomy on the expression of stem cell biomarkers and the progression to EAC.

Colorectal cancer ranks the second lethal cancer and third prevalent malignant tumour worldwide, Despite of different odern modalities for diagnosis,large number of cases diagnosed at metastatic advanced stage . New treatment approach has been discovered habe been discovered making a huge revolution in metastatic colorectal cancer represented by targeted therapy including anti_EGFR ,anti_angiogenic and kinase inhibitors .

In our multicenter retrospective study, preoperative CA 19.9 levels predicts the presence of lymph node metastasis at final histology in patients underwent pancreatoduodenectomy for pancreatic ductal adenocarcinoma .

Ductal adenocarcinoma of the pancreas is the fifth leading cause of cancer related deaths in the European Union. Tumor markers CA19-9 and carcinoembryonic antigen are important components in decision making and follow-up of patients diagnosed with this disease. These tumor markers were found to be elevated not only in the serum but also in other body fluids in patients with malignant lesions of the parotid gland and the urinary tract. The authors have described in a previews small preliminary study a positive and a strong linear correlation between the levels of CA19-9 in urine and saliva with those presented in the serum of patients with ductal adenocarcinoma of the pancreas. The current study seeks to enlarge the study population to confirm the previous results and standardize the measured levels of CA19-9 in these body fluids.

Lung Cancer continues to be the major cause of cancer-related mortality in Singapore. Non-small cell lung cancer (NSCLC) accounts for 75% of lung cancers and adenocarcinoma is the most common histological subtype. Although cigarette-smoking is the main cause of lung cancer, more than a third afflicted in Singapore are never-smokers and 69% affect females. For the majority who present with advanced NSCLC, chemotherapy is the mainstay of treatment. Despite advances made with newer chemotherapeutic agents, it is apparent that the benefit of conventional chemotherapy has plateaued. Efforts toward developing novel treatments based on growing understanding of molecular oncology have yielded drugs that target vascular endothelial growth factor (VEGF) and epidermal growth factor receptor (EGFR). They have expanded treatment options for patients with advanced NSCLC. However, monoclonal antibody to VEGF is contraindicated in patients with squamous cell carcinoma due to increased incidence of fatal hemoptysis. EGFR tyrosine kinase inhibitors (EGFR-TKI) appear promising but only 40% of east-asian female never-smokers with lung adenocarcinoma harbour EGFR gene mutations. Estrogen, KRAS, BRAF, ERBE and other genetic mutations can confound response. Molecular data obtained from Caucasian and predominantly east-asian population may not apply to our multi-ethnic groups and our aim is to determine the molecular characteristics of our multi-ethnic asian phenotypes to better understand the process of carcinogenesis and treatment response as well as identify potential novel targets for future drug development. Paraffin-embedded tissues are recalled, and DNA is extracted for mutational analysis, which will be correlated to patient demographics, treatment and outcome.

The investigators are undertaking a multi-center, 13000 subject validation study of several biomarkers for early detection of colon cancer. There are stool based biomarkers and blood based biomarkers being validated in this study. The biomarkers will be compared with colonoscopy and with FIT (fecal immunohistochemistry) tests which are the current standards for colon cancer screening. This is an NCI-early Detection Research Network funded project. The population targeted for this study are those persons undergoing colonoscopy for screening. Prior to colonoscopy or even prepping for colonoscopy, subjects will provide blood and stool samples as well as specific data regarding their GI and general medical history and concomitant medications. If subjects are interested in participating, arrangements will be made to see them. The informed consent process will take place, blood will be obtained, data will be obtained, and the stool kit described and given to the subject to take home. Stool samples will be sent back to the University of Michigan using prepaid mailing labels.

Subjects enrolled in this study will have biopsies obtained and sent to Dr. Fitzgerald's lab for analysis of a validated biomarker panel. Subjects will be stratified to either high or low risk of progression to esophageal adenocarcinoma (EAC) based on biomarker panel results. Biomarker panel results will not be communicated to sites. Subjects with low grade dysplasia will be offered the option of treatment (radiofrequency ablation (RFA)) as part of routine care. Subjects with low grade dysplasia who do not want RFA and subjects with no dysplasia will receive surveillance endoscopy in 1 year per routine care. All subjects will be administered a questionnaire seeking information about hypothetical willingness to be randomized to treatment or surveillance.

The purpose of this study is to determine whether cryotherapy is effective in the treatment of persistent high grade dysplasia (HGD) or early esophageal adenocarcinoma (IMCA) in patients who have not responded to radiofrequency ablation (RFA).

RATIONALE: Gathering information from patients who have undergone treatment for upper gastrointestinal cancer or gynecological cancer may help doctors learn more about patients' physical and psychosocial rehabilitation needs and plan the best treatment. PURPOSE: This clinical trial is studying the physical and psychosocial rehabilitation needs of patients after diagnosis and treatment of upper gastrointestinal cancer or gynecological cancer.