In patients with unexplained acute recurrent pancreatitis who have pancreas divisum, the widely used procedure endoscopic retrograde cholangiopancreatography (ERCP) with minor papillotomy does not reduce the risk for more episodes of acute pancreatitis or protect against longer-term consequences, a new randomized, sham-controlled study concludes. The findings run contrary to long-held beliefs that have been based mostly on observational data.

Pivotal study shows no clear benefit for the common endoscopic procedure in this patient group. Experts say the new data could help avoid unnecessary cost and risk.