4 Clinical Trials for Various Conditions
This seamless, adaptive, two-stage, Phase 2b/3, randomized, double-blind, multicenter, parallel-groups, placebo-controlled study will assess the efficacy, safety, and tolerability of belapectin compared with placebo in patients with nonalcoholic steatohepatitis (NASH) cirrhosis and clinical signs of portal hypertension but without esophageal varices at baseline.
The purpose of this study is to learn whether timolol is useful in preventing or delaying the appearance of gastroesophageal varices, a complication that may develop in the future as a consequence of liver disease. Cirrhosis causes an increased resistance of blood flowing through the liver. This leads to an increased pressure in the portal vein (the vein that takes blood to your liver). High portal pressure is responsible for the appearance of complications of chronic liver disease such as varices and variceal bleeding (bleeding from veins in your esophagus). Timolol belongs to a group of medications called beta-blockers. Beta-blockers decrease high portal pressure and previous studies have shown that beta-blocker pills are useful in preventing bleeding from varices in patients who already have varices. A more desirable effect would be if these pills could prevent not only bleeding from varices but the appearance of varices (and therefore of bleeding).
Subjects will be those individuals greater than 18 years of age with a diagnosis of cirrhosis undergoing screening for esophageal varices. Eligible subjects will have a diagnosis of cirrhosis and esophageal varices (graded as medium or large) with no prior history of variceal bleeding. The diagnosis of cirrhosis will be based on clinical, radiologic, and/or laboratory data. Patients will be randomly assigned using electronic medical records to one of three treatment arms after screening esophagogastroduodenoscopy (EGD) has been performed and large varices are identified. Primary outcome of the study will be the incidence of variceal bleeding in patients receiving one of the following therapies for primary prophylaxis of variceal bleeding: carvedilol, variceal band ligation (VBL), or both carvedilol and VBL.
Patients with scarring of the liver (cirrhosis) and portal hypertension (elevated blood pressure in the liver vasculature) can develop esophageal varices (dilated veins). These have an increased risk of bleeding each year. Current recommendations are to prevent bleeding of medium or large varices (when there is no history of bleeding) by starting a blood pressure lowering agent known as a non-selective beta-blocker. Alternatively, rubber bands can be placed on medium to large varices to prevent bleeding (endoscopic variceal band ligation). Using both therapies at the same time has not been studied. In this study, we hope to determine if the use of combination therapy with endoscopic variceal band ligation and beta blockers is more effective than using beta blockers alone to prevent the first bleeding episode from the varices (dilated veins). The efficacy, ability to tolerate, and cost-effectiveness of these two treatment strategies will be compared.