Prospective study on efficacy of prophylactic gallbladder stent for preventing acute cholecystitis induced after use of metallic stent placement for malignant biliary strictures

Prospective study on efficacy of prophylactic gallbladder stent for preventing acute cholecystitis induced after use of metallic stent placement for malignant biliary strictures - Pegasus study

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000050327

Enrollment

100

Registered

2023-02-14

Start date

2023-02-22

Completion date

Unknown

Last updated

2026-06-29

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

Conditions

malignant biliary strictures, bile duct cancer, pancreatic cancer, cholecystitis

Interventions

Endoscopic transpapillary gallbladder drainage

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: patients who undergo endoscopic biliary drainage for malignant biliary strictures obtaining written informed consent

Exclusion criteria

Exclusion criteria: bleeding tendency poor general condition Patients considering radiation therapy, etc. After placement of an unremovable biliary stent Benign biliary strictures After cholecystectomy pregnancy

Design outcomes

Primary

Measure	Time frame
The incidence of acute cholecystitis at 30 days after treatment	—

Secondary

Measure	Time frame
Technical success rate Adverse event rate Risk factors for the development of acute cholecystitis	—

Countries

Japan

Contacts

Public ContactFumisato Kozakai

Sendai City Medical Center Department of gastroenterology

kozakai5656@openhp.or.jp0222521111

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026