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Kumar clamp versus Olsen cAtheter for Laparoscopic intraoperative cholAngiography (KOALA)

To assess whether cholangiography using the Kumar clamp is faster and easier than using the Olsen catheter.

Ursodeoxycholic acid for the prevention of symptomatic gallstone disease after Roux-en-Y Gastric Bypass and Sleeve Gastrectomy.

This study is designed to provide evidence regarding the prophylactic use of UDCA in preventing symptomatic gallstone disease after RYGB and Sleeve Gastrectomy.

Double-blind, randomized, placebo-controlled, phase II dose-finding study comparing different
doses of Rhudex granules with placebo in the treatment of primary biliary cholangitis

Primary:To evaluate the efficacy of 3 doses of RhuDex vs placebo for the treatment of PBC in patients with an inadequate response to UDCA.Secondary:• To identify efficacious RhuDex dose(s) for the treatment of PBC for further evaluation in phase III…