Active clinical trials for "Neoplasms"

The purpose of the investigators study is to retrospectively evaluate the predictors of malignant thyroid nodules and established an useful scoring system based on sonographic findings and demographic data.

This is a cross-sectional, observational and correlational survey study.This study is aim to survey the the knowledge, attitudes, and decision making towards clinical trials in cancer patients in Taiwan (R.O.C.), which attempts to invite some cancer patients who have been experienced the treatment clinical trials' informed consent process. The research tool is a questionnaire which includes some scale: (1)Clinical trial Knowledge scale, (2) Attitude toward randomized clinical trials scale, (3) Shared Decision Making(SDM-Q-9),(4) Satisfaction with Decision (SWD-scale), and (5) Decision Regret scale(DRS). The investigators expect the research outcome can provide some instructions to improve patients' autonomy, satisfaction of the decision making and communication process between patients and Medical professors whenever cancer patients participating in clinical trials.

Primary hyperparathyroidism (PHPT) is one of the common endocrine disorders. The major clinical symptoms involve stones, bones, abdominal groans and psychiatric moans. Increased parathyroid cell proliferation and decreased calcium-mediated control of the PTH secretion are characteristic findings. The most common cause of PHPT is adenoma followed by hyperplasia and carcinoma.The molecular mechanisms involved in parathyroid tumorigenesis are partially known. Few genes have been identified and their roles are under study. The genes which are under study by different groups are unable to give a definite direction towards the understanding of parathyroid tumorigenesis and the mechanism involved in overgrowth of parathyroid tissue. So identifying different proteins and their regulation pattern from adenomas to carcinomas will be the initial steps towards understanding the proteins involved in tumorigenesis of parathyroid tissues. By using proteomics approach one can generate protein level information. In this study, using a combined approach based on 2 D gel electrophoresis and mass spectrometry (MS), the investigators propose to study a comparative proteomics to examine the changes of protein profiles in parathyroid tumor tissues with normal and hyperplasic parathyroid tissues. This work plan will help us to understand differentially expressed proteins in patients with PHPT. This will help in understanding the disease and identifying better diagnostic and curative measures of the disease. The investigators are also planning to access nuclear morphometry changes in sporadic parathyroid tumors. It will help in establishing cellular and nuclear change pattern variations from normal to parathyroid tumors.

Gadoxetic acid (Gd-EOB-DTPA, Primovist)-enhanced MRI can affect on BCLC staging during the initial staging workups of definite HCC patients with very early or early stage disease, but with no suspicious intrahepatic HCC lesions by liver dynamic CT.

Most of the early gastric cancer are asymptomatic. Symptoms of advanced gastric cancer are weight loss, abdominal pain, nausea, vomiting, anorexia dysphagia, gastrointestinal bleeding. Gastric cancer found according to warning symptoms such as gastrointestinal bleeding, weight loss usually can not be cured. Therefore, early gastric cancer can not be detected and impossible to treatment if endoscopy is performed according to the warning signs. National gastric cancer screening is conducted in men and women of more than 40 years old. The purpose of screening for gastric cancer is discovering a case of possible cure, so increasing the survival rate. The purpose of this study is review of the feasibility of screening for gastric cancer.

This is a Randomized trial on Mechanical Bowel Preparation in Laparoscopic Colorectal Surgery. In this trial patients with left sided colon and rectal tumors were randomized to receive mechanical bowel preparation or no preparation to assess postoperative complications and outcome

To determine the incidence, prevalence and long-term outcome of patients with SFTP in the German spoken part of Switzerland. To define the role of immunohistochemical and molecular techniques, such as immunostaining, FISH and mutational analysis regarding their ability to predict malignant behavior in terms of prediction of overall survival and disease-free survival.

The BAP1 trial will examine the blood of patients diagnosed with choroidal nevi or uveal melanoma for a germline BAP1 mutation and other genetic markers associated with developing malignancy as well as additional sequencing of the uveal melanoma genome.

The proposed study is a post marketing, observational, retrospective data collection intended to gather and record data on patients treated with the ColonRing device in routine clinical practice at 4-6 centers. The data will assist in future evaluating the performance of the ColonRing device in regards to the creation of a colorectal anastomosis in Low Anterior Resection procedures. Hypothesis: The performance of the ColonRing, determined by the rate of complications, will be within the acceptable range reported in the literature for alternative treatment modalities.

The investigators study the VEGF signaling in HCC cell lines and its mechanism in HCC growth, proliferation and apoptosis.