IRCT20230314057717N3 IRCT 2023-07-05 Shahid Beheshti University of Medical Sciences Investigating the effect of pancreatic duct stent in the prevention of pancreatitis after ERCP Investigation of the efficacy of prophylactic pancreatic duct stenting in the prevention of post-ERCP-pancreatitis in patients with difficult common bile duct cannulation using double guide wire technique 2023-07-23 anticipated 238 Complete https://irct.ir/trial/70924 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: Patients are assigned to two groups using the random block method. The number of blocks will be 4 and in each block three patients will be included in the study order. Random allocation of blocks of patients to two treatment groups will be done through Sealed Envelope online software. The randomized list of blocks is placed in sealed envelopes and will be provided to the endoscopist on a daily basis, Blinding description: In order to avoid the bias of the analyst, he does not know which patient is in which group, and the patients' characteristics are provided to him in a coded form. N/A Bile duct disease. Intervention 1: Intervention group: Patients who undergo implantation of a 5cm-5Fr pigtail Boston Scientific stent in the pancreatic duct. Intervention 2: Control group: Patients who do not undergo bile duct stenting. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is Maintain confidentiality and ethical matters