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Dose-escalation of Rectal Indomethacin for Preventing PEP

Dose-escalation of Rectal Indomethacin for Post-ERCP Pancreatitis Prevention in High-risk Patients: Protocol of a Multicentre Randomised Clinical Trial

Status
Not yet recruiting
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07247682
Enrollment
1036
Registered
2025-11-25
Start date
2025-12-01
Completion date
2028-12-30
Last updated
2025-11-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Post-ERCP Pancreatitis

Keywords

post-ERCP pancreatitis, indometacin, ERCP

Brief summary

Our aim is to compare the efficacy of 100 mg versus 200 mg rectal indometacin in preventing post-ERCP pancreatitis (PEP) among high-risk patients without no pancreatic stenting. The 100 mg versus 200 mg indometacin trial is a multicentre, single-blind, randomized controlled study. High-risk patients for PEP without pancreatic stent insertion will be informed about the opportunity to participate. A total of 1,036 eligible patients will be randomly assigned in a 1:1 ratio to one of two groups: (1) administration of 100 mg rectal indometacin immediately after ERCP (standard-dose group), or (2) administration of 200 mg rectal indometacin immediately after ERCP (high-dose group). The primary outcome is the incidence and severity of PEP. Secondary outcomes include hyperamylasemia and other ERCP-related adverse events (AEs).

Detailed description

Evidence suggests that escalating the rectal indometacin dose to 200 mg offers no clear advantage over the standard 100 mg regimen in high-risk patients. However, the majority of participants (76%) had received pancreatic stent placement, raising the possibility that the benefit of the supplementary strategy may have been obscured by the considerable efficacy of pancreatic stenting. Our aim is to compare the efficacy of 100 mg versus 200 mg rectal indometacin in preventing post-ERCP pancreatitis (PEP) among high-risk patients without no pancreatic stenting.

Interventions

DRUGstandard-dose group VS high-dose group

A total of 1,036 eligible patients will be randomly assigned in a 1:1 ratio to one of two groups: (1) administration of 100 mg rectal indometacin immediately after ERCP (standard-dose group), or (2) administration of 200 mg rectal indometacin immediately after ERCP (high-dose group)

Sponsors

The First Affiliated Hospital of Anhui Medical University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)

Masking description

For enhanced objectivity in data analysis, the project statisticians will be blinded to the arm allocation.

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

Participants will be eligible for enrollment if they meet all of the following criteria: 1. age over 18 years; 2. classified as high risk for post-ERCP pancreatitis; 3. provision of signed, written informed consent.

Exclusion criteria

Participants will be excluded if they meet any of the following conditions: 1. inaccessible major papilla; 2. surgically altered gastrointestinal anatomy; 3. current diagnosis of acute pancreatitis; 4. placement of a pancreatic stent; 5. contraindications to nonsteroidal anti-inflammatory drugs (NSAIDs), including known allergy, renal insufficiency, or active peptic ulcer disease; 6. anticipated low risk of post-ERCP pancreatitis (e.g., patients with chronic calcific pancreatitis, pancreatic head mass, or those undergoing biliary interventions through a pre-existing sphincterotomy); 7.severe active cardiopulmonary disease; 8. pregnancy or breastfeeding; 9. presence of an ampullary tumor. \-

Design outcomes

Primary

MeasureTime frameDescription
the incidence and severity of PEPup to 1 monthsPatients were identified as post-ERCPpancreatitis if meeting two out of three criteria: pain consistent with acute pancreatitis; amylase or lipase\>3 times normal limit; characteristic findings on imaging, in according to the Revised Atlanta International consensus.

Countries

China

Contacts

Primary ContactQiao Mei, MD
meiqiaomq@aliyun.com8613865977696
Backup ContactJunjun Bao, MD
csbj01@aliyun.com8613655697005

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026