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CompletedNCT06349954Updated Jun 24, 2025

Effectiveness and Safety of Single-session Endoscopic Stone Extraction

An interventional study of single-session ERCP and two-session ERCP in Choledocholithiasis With Acute Cholangitis, sponsored by Beijing Friendship Hospital. Completed at 1 site in China. Open to participants aged 18 Years to 90 Years. Per ClinicalTrials.gov, last updated 2025-06-24.

Sponsored by Beijing Friendship Hospital · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
64
Allocation
Randomized
Ages
18 Years to 90 Years
Sex
All
01

Study summary

This is a prospective study, including approximately 64 patients with acute cholangitis accompanied with choledocholithiasis at Beijing Friendship Hospital. All patients will be randomly allocate into single-session or two-session endoscopic stone extraction. The investigators assessed the outcomes of single-session and two-session endoscopic stone extraction.

Read the detailed description

Acute cholangitis is an acute inflammation caused by obstruction of the bile duct, of which choledocholithiasis is the most common cause. Without timely removal of the obstruction or control of the infection, cholangitis can get worse and even become life-threatening. Therefore, timely and effective treatment is essential for patients with acute cholangitis combined with choledocholithiasis. Endoscopic retrograde cholangiography (ERCP) is used as the first-line treatment for choledocholithiasis-associated acute cholangitis. Previous guidelines recommended two-session endoscopic therapy. Endoscopic biliary drainage as the initial treatment, followed by endoscopic stone extraction after cholangitis improved. In recent years, studies have found that single-session endoscopic stone extraction is safe and effective for patients without serious organ function impairment. Meanwhile, single-session endoscopic lithotomy can avoid the second ERCP intervention, which can relieve the pain of patients, reduce medical costs and shorten the length of hospital stay. However, there is still insufficient evidence on the effectiveness and safety of early single-session ERCP lithotomy. The aim of this study is to evaluate the efficacy and safety of single-session endoscopic stone extraction for acute cholangitis associated with choledocholithiasis, so as to provide reference of clinical treatment.

In a prospective study, approximately 64 patients with acute cholangitis accompanied with choledocholithiasis will be involved. The investigators assessed the outcomes of single-session and two-session endoscopic stone extraction.

02

Conditions studied

  • Choledocholithiasis With Acute Cholangitis

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Keywords

  • Acute Cholangitis
  • Endoscopic Retrograde Cholangiopancreatography
  • Choledocholithiasis
03

In context

Choledocholithiasis

109 studies on the registry are indexed under Choledocholithiasis; 24 are open to participants now.

This study's enrollment of 64 is below the median of 100 across 76 interventional studies indexed under Choledocholithiasis.

Browse Choledocholithiasis studies →

Lead sponsor

Beijing Friendship Hospital is the lead sponsor of 217 studies on the registry; 94 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 90 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • 1. Age ≥18 years old and ≤90 years old
  • 2. Patients met the Tokyo Guidelines 2018 (TG18) diagnosis of Grade I or Grade II acute cholangitis
  • 3. Imaging examination confirmed the presence of choledocholithiasis

Exclusion criteria

Exclusion Criteria:

  • 1. Common bile duct with benign or malignant stenosis
  • 2. Changes in the anatomical structure of the stomach or duodenum
  • 3. Patients with common biliary duct or pancreatic duct stent
  • 4. Patients complicated with acute pancreatitis
  • 5. Patients who underwent endoscopic intervention, percutaneous transhepatic cholangio drainage (PTCD) or other invasive interventions before admission
  • 6. Patients with cardiac failure, respiratory failure or consciousness disorder can not tolerate endoscopic operation
  • 7. Patients who have coagulation dysfunction or are taking anticoagulation and antiplate drugs
  • 8. Imaging examination showed that the maximum diameter of choledocholithiasis was more than 1.5cm
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
64 participants (actual)

Study arms

  • Experimental
    single-session treatment group

    single-session ERCP

    Procedure: single-session ERCP

  • Experimental
    two-session treatment group

    two-session ERCP

    Procedure: two-session ERCP

Interventions

  • Proceduresingle-session ERCP

    directly endoscopic stone extraction

  • Proceduretwo-session ERCP

    early endoscopic drainage followed by endoscopic stone extraction

06

What researchers measure

Primary outcomes

  1. Success rate of complete stone removal

    Segmental angiography was performed by balloon closure to determine the presence or absence of negative stone shadow

    Time frame: during the operation

  2. ERCP-related complication rate

    The complications include pancreatitis, hemorrhage, perforation, pneumonia, etc. The results of intraoperative endoscopic observation, postoperative symptoms and signs, blood routine examination, amylase, lipase, and imaging and endoscopic examination were measured.

    Time frame: from the operation to 1 month after the operation

Secondary outcomes

  1. Length of stay

    Total time from admission to discharge.

    Time frame: perioperatively

  2. Hospital expenses

    Total expenses from admission to discharge.

    Time frame: perioperatively

07

Study locations

1 site
  • Beijing Friendship Hospital
    Beijing, Beijing Municipality 100050, China
08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Apr 2024 to primary completion in Dec 2024, 8 months.

Of 41 non-industry interventional studies with no phase under Choledocholithiasis, half reached primary completion within 21 months of starting (the median), counting those still running; a quarter within 12 and three quarters within 36. This study's 8 months is below that.

Counting every sponsor, half of 43 studies reached it within 21 months; a quarter within 12 and three quarters within 36.

How these figures are worked out, and which studies are left out of them.

Registered
Apr 1, 2024
First posted
Apr 5, 2024
StartActual
Apr 15, 2024
Primary completionActual
Dec 30, 2024
CompletionActual
Jan 15, 2025
Last update
Jun 24, 2025
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jun 24, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06349954
Responsible party
Sponsor
First posted
Apr 5, 2024
Start date
Apr 15, 2024
Primary completion
Dec 30, 2024
Completion
Jan 15, 2025
Last update
Jun 24, 2025

Study contacts

Fujing Lv, M.D.
principal investigator · Beijing Friendship Hospital

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Jan 2025. You cannot join it, but the record below documents what was studied.

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