Active clinical trials for "Ulcer"

Proton pump inhibitors (PPIs) are mainly metabolized in the liver by CYP2C19, one of the cytochrome P450 isoenzymes, which shows a genetic polymorphism associated with enzyme activities. The most essential role of a PPI in H. pylori eradication therapy is to make antibiotics more stable and bioavailable in the stomach by raising intragastric pH to neutral levels. Most patients who have failed in the eradication of H. pylori infection by triple therapy with a PPI, amoxicillin (AMPC) and clarithromycin (CAM) at standard doses have extensive metabolizer (EM) genotypes of CYP2C19 and/or are infected with CAM-resistant strains of H. pylori. Four-times daily dosing of a PPI could achieve complete gastric acid inhibition. Dual therapy with 4-times daily dosing of a PPI and AMPC could yield sufficient re-eradication rates in patients with EM genotype of CYP2C19. Metronidazole (MNZ)-based re-eradication therapy, such as triple PPI/AMPC/MNZ therapy, also achieved high eradication rates and has been recommended as the second line therapy in Japan. But carcinogenic actions of MNZ have been unclear. The purpose of this study is to compare the re-eradication rates of H. pylori infection by the dual high-dose PPI/AMPC therapy and triple PPI/AMPC/MNZ therapy, and to validate the efficacies of these re-eradication regimens as second line eradication therapies.

The investigators aimed to elucidate the effects of ultrasound debridement on the area and healing of diabetic foot ulcers compared to their conventional treatment.

We are going to conduct a comparative study to analyze the clinical effectiveness and user convenience of EZ clips that have been used in upper gastrointestinal ulcer bleeding and newly developed clip (ClearEndoclip, FineMedix, Taegu) in Korea. 1) Research hypothesis and purpose This study was designed to prove the hypothesis that the hemostatic effect of newly developed endoscopic clip (ClearEndoclip, FineMedix, Taegu, Korea) is not inferior to that of EZ clip (Olympus, Tokyo, Japan) in the treatment of hemostasis for patients who visited the upper gastrointestinal ulcer bleeding. This study was designed as a multi-center (9 institutions), open-labelled, randomized comparative clinical trial (1:1 ratio).

The purpose of this study is to study the loss of vedolizumab in stool in patients with active ulcerative colitis (UC). Patients with moderate-to-severe UC who are commencing induction therapy with vedolizumab will be enrolled into a prospective study and stool will be collected for faecal vedolizumab measurement at days 1, 4 and 7; and again at weeks 2, 6 and 14. They will also be evaluated at three time-points (weeks 2, 6 and 14) for clinical and biochemical UC disease activity as well as serum vedolizumab concentrations and anti-vedolizumab antibodies.

The aim of this study is to determine the efficacy and safety of Beta-1,3/1,6-D-Glucan from mycelium extract of Ganoderma lucidum on ulcerative colitis

This is a phase 2, multicenter, randomized, double-blind, placebo-controlled, parallel-group study in patients with moderate to severe active ulcerative colitis.

We prepare this study to compare the efficacy of intermittent intravenous PPI infusion (relatively low dose PPI therapy) than continous PPI infusion method. Our hypothesis is that intermittent (40mg as a bolus injection daily for 72 hours) PPI therapy is not inferior to conventional high dose therapy.

Fecal Microbiota Transplantation(FMT) - reconstitution of normal flora by a stool transplant from a healthy individual, is increasingly being recognized as a therapeutic modality for diseases that are associated with gut dysbiosis. This is a placebo-controlled, double blinded interventional study evaluating multiple, oral, fecal microbiota transplantation, administered in newly diagnosed pediatric patients with mild-moderate UC. The primary objective is to assess the safety and feasibility of multiple, oral, fecal microbiota transplantation, in newly diagnosed pediatric patients with mild-moderate UC. All processing will occur at the Center for Microbiome Research at Assaf Harofeh Medical Center, under GMP conditions.

This study will compare the efficacy of using standard compression therapy for treatment of chronic venous leg ulcers vs. the standard compression therapy with the additional use of the application of a human allograft (Theraskin)

The aims of our study are to evaluate the feasibility and safety of endoscopic injection of adipose tissue-derived mesenchymal stem cells in human subjects with moderate active ulcerative colitis, assessing the absence of adverse events associated to the investigational drug, and to evaluate the efficacy of the treatment to induce remission of moderate active ulcerative colitis, by improvements in disease activity index, quality of life index, and endoscopic index.