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Active, not recruitingNCT07503964DILAILAUpdated Mar 31, 2026

The Significance of Laparoscopic Transcystic Papilla Vateri Balloon Dilatation in Patients With Choledocholithiasis.

An interventional study of Endoscopic retrograde cholangiopancreatography with papillotomy and stone evacuation from common bile duct. and Laparoscopic Cholecystectomy. in Choledocholithiasis and Choledocholithiasis With Cholecystitis, sponsored by Riga East Clinical University Hospital. Active, not recruiting at 1 site in Latvia. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-03-31.

Sponsored by Riga East Clinical University Hospital · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 6 months after the study started (first participant enrolled May 2025, registered Nov 2025).
Phase
Not applicable
Study type
Interventional
Enrollment
100
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

A prospective randomized trial. It is planned to analyze groups of patients with cholecystitis and choledocholithiasis. As part of the study, after signing the consent, the patients will be divided into two groups that have indications for surgical therapy. A two-stage therapy will be applied to one group, where initially endoscopic retrograde cholangiopancreatography with evacuation of gallstone from the common bile duct will be prescribed, and as the second stage, patients will undergo surgery - laparoscopic cholecystectomy. For the second group, a one-stage therapy tactic will be applied, where during the operation (laparoscopic cholecystectomy), transcystic papilla Vateri balloon dilation with antegrade gallstone evacuation from the common bile duct will be applied. For patients who will be proven to have a stone in the common bile duct and patients who meet the study inclusion criteria, a sealed envelope will be placed in the medical history with a specific therapeutic tactic that will be applied to the patient's treatment. Each envelope will be assigned a number. Using a computer and a randomizer, an envelope with a number will be selected, which will be assigned to each patient. The postoperative course, duration of surgery, length of hospitalization, types of complications and their frequency after surgery, the creator of successful outcomes, the cost of the treatment method in the specific medical institution will be analyzed. The data will be processed with the IBM SPSS program and analyzed according to the parametric/non-parametric distribution of the data.

Read the detailed description

Choledocholithiasis, characterized by the presence of stones in the common bile duct, is a complex clinical condition that often requires invasive intervention to prevent complications such as cholangitis, jaundice, and biliary pancreatitis.

Several approaches are used for the treatment of choledocholithiasis. The National Institute for Health and Care Excellence (NICE) clinical guidelines on gallstone disease (2014) recommend bile duct clearance and laparoscopic cholecystectomy for patients with symptomatic or asymptomatic common bile duct stones.

NICE also recommends stone evacuation from the common bile duct during laparoscopic cholecystectomy or by endoscopic retrograde cholangiopancreatography (ERCP) before or during laparoscopic cholecystectomy. However, ERCP is associated with a significant rate of complications, ranging from 4% to 16%, including post-procedure pancreatitis, bleeding, cholangitis, and perforation. The most common and serious complication after ERCP is acute pancreatitis (Koc B. et al., 2014).

Often, cholecystectomy and ERCP are performed in two stages, and ERCP requires specialized equipment and the participation of a qualified endoscopist during the procedure. All of this increases the cost of the intervention and prolongs hospitalization.

We propose a new minimally invasive method for the treatment of choledocholithiasis. This method was approved and applied for the first time in Latvia at the Riga East Clinical University Hospital "Gaiļezers."

The method has several advantages compared to the standard two-stage approach (ERCP followed by laparoscopic cholecystectomy):

  1. The method is relatively fast;
  2. It is a single-stage procedure;
  3. It is safe and associated with a low rate of complications;
  4. The procedure can be performed by the operating surgeon, without the need for an endoscopist's presence.

Laparoscopic transcystic balloon dilation of the papilla Vateri (TPVBD), performed during laparoscopic cholecystectomy, is a minimally invasive surgical technique.

This technique involves the insertion of a balloon catheter through the cystic duct into the common bile duct, followed by balloon inflation to dilate the papilla, thereby facilitating the passage of stones into the duodenum (Maggie E. Bosley et al., 2021).

Laparoscopic transcystic balloon dilation is performed simultaneously with laparoscopic cholecystectomy, offering a single-stage approach. This reduces the need for a separate endoscopic procedure and effectively eliminates the risk of post-ERCP pancreatitis (Maggie E. Bosley et al., 2022).

Furthermore, the transcystic approach may be preferable for patients with complex biliary anatomy or small papillary openings, where endoscopic access may be challenging (Testoni, P. A., et al., 2016).

In contrast, ERCP is an endoscopic procedure in which a flexible endoscope is inserted through the mouth into the duodenum to visualize the papilla Vateri. Stones from the common bile duct are removed using specialized instruments such as baskets or balloons under direct endoscopic guidance (Mahalingam S. et al., 2021). However, ERCP is associated with a relatively high risk of complications (Koc B. et al., 2014), including pancreatitis, bleeding, perforation, and cholangitis, which may limit its suitability for certain patient groups (Manoharan D. et al., 2019; Shabanzadeh D. M. et al., 2021).

Although the use of ERCP in patients with choledocholithiasis is increasing, uncertainty remains as to whether single-stage or two-stage management provides better outcomes for patients.

A review of the available literature revealed a limited number of published studies on this method, even though it has been described and reported for several years.

In many published clinical cases, the detailed description and explanation of the laparoscopic transcystic papilla balloon dilation technique are lacking.

Therefore, it can be concluded that, to date, no standardized technique or protocol for the application of this method has been established. Several publications have retrospectively compared single-stage and two-stage treatment outcomes; however, a prospective, randomized study is needed for an in-depth analysis, as emphasized by other authors.

It is important to develop a safe and effective standardized technique and protocol for this method to facilitate its future use in clinical practice.

02

Conditions studied

  • Choledocholithiasis
  • Choledocholithiasis With Cholecystitis

Keywords

  • Laparoscopic cholecystectomy
  • Choledocholithiasis
  • Transcystic papilla Vateri balloon dilation
  • Gallstone disease
  • Minimally invasive surgery
  • Common bile duct exploration
  • Complicated gallstone disease
03

In context

Choledocholithiasis

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

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

Browse Choledocholithiasis studies →

Lead sponsor

Riga East Clinical University Hospital is the lead sponsor of 4 studies on the registry; 1 is open to participants now.

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

04

Who can participate

Ages eligible
18 Years and older
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

  • patient older than 18 years,
  • signed consent to participate in the study,
  • diagnosed and confirmed choledocholithiasis,
  • diameter of stones in the common bile duct no greater than 15 mm,
  • patients whose general health condition will allow laparoscopic cholecystectomy.

Exclusion criteria

Exclusion Criteria:

  • patients under 18 years of age,
  • patients who refused to sign a consent form to participate in the study,
  • patients who, during conservative treatment (nitrates p/o), experience spontaneous antegrade evacuation of stones from the common bile duct,
  • patients who have had a history of cholecystectomy,
  • patients whose stone diameter in the common bile duct is greater than 15 mm,
  • patients whose general health condition does not allow laparoscopic cholecystectomy
05

Study design

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

Study arms

  • Active comparator
    Two-step therapy method

    Endoscopic retrograde cholangiopancreatography with papillotomy and stone evacuation from common bile duct, and laparoscopic cholecystectomy (ERCP/LC).

    Procedure: Endoscopic retrograde cholangiopancreatography with papillotomy and stone evacuation from common bile duct. · Procedure: Laparoscopic Cholecystectomy.

  • Sham comparator
    The one-step therapy method

    Laparoscopic cholecystectomy with intraoperative transcystic balloon dilatation of the papilla Vateri and anterograde evacuation of gallstones to duodenum (BD/LC).

    Procedure: Laparoscopic transcystic balloon dilatation of the papilla Vateri.

Interventions

  • ProcedureEndoscopic retrograde cholangiopancreatography with papillotomy and stone evacuation from common bile duct.

    Endoscopic retrograde cholangiopancreatography (ERCP) with stone extraction is a minimally invasive endoscopic procedure used for the treatment of choledocholithiasis. The procedure is performed under sedation or general anesthesia with the patient in the prone or semi-prone position. A side-viewing duodenoscope is advanced into the duodenum, and the papilla of Vater is identified. The common bile duct is selectively cannulated using a guidewire-assisted technique, and contrast medium is injected under fluoroscopic control to visualize the biliary anatomy and confirm the presence of stones. If indicated, an endoscopic sphincterotomy is performed to enlarge the biliary orifice. Stones are then extracted using retrieval devices such as balloons or Dormia baskets, and complete duct clearance is confirmed by a final cholangiogram. A temporary biliary stent may be placed if drainage is inadequate. Patients are monitored after the procedure for potential complications.

  • ProcedureLaparoscopic Cholecystectomy.

    Laparoscopic cholecystectomy is a minimally invasive surgical procedure for the removal of the gallbladder, typically indicated for symptomatic cholelithiasis or cholecystitis. The procedure is performed under general anesthesia. Four small trocars are inserted into the abdominal cavity to allow placement of a laparoscope and surgical instruments. The cystic duct and cystic artery are identified, clipped, and divided. The gallbladder is then dissected from the liver bed using electrocautery and removed through one of the port sites. After ensuring hemostasis and inspecting the operative field, the instruments are withdrawn, and the port sites are closed. Patients usually recover quickly, with a shorter hospital stay and reduced postoperative pain compared to open cholecystectomy.

  • ProcedureLaparoscopic transcystic balloon dilatation of the papilla Vateri.

    Laparoscopic transcystic balloon dilatation of the papilla Vateri, performed during laparoscopic cholecystectomy, is a minimally invasive surgical technique. This technique involves the insertion of a balloon catheter through the cystic duct into the common bile duct, followed by inflation to dilate the papilla Vateri, facilitating stone passage into the duodenum.

06

What researchers measure

Primary outcomes

  1. Successful common bile duct clearance rate

    Successful clearance of the common bile duct, defined as absence of residual stones confirmed intraoperatively by cholangiography, compared between the two treatment groups.

    Time frame: Immediately after surgery

Secondary outcomes

  1. Length of hospital stay

    Length of hospital stay measured as the number of days from the day of surgery to hospital discharge.

    Time frame: 7 days

  2. Manipulation execution time

    Duration of stone extraction procedure measured from insertion of the transcystic catheter or endoscope to completion of bile duct clearance.

    Time frame: Perioperatively. Unit of Measure: Minutes.

  3. Frequency and types of complications

    Incidence and type of intraoperative and postoperative complications classified according to the Clavien-Dindo classification. Unit of Measure - Number and percentage of patients (%).

    Time frame: From surgery through 10 to 30 days postoperatively

  4. Technical success rate

    Technical success defined as completion of the planned procedure without conversion to an alternative bile duct clearance method. Unit of Measure - Percentage of patients (%)

    Time frame: Immediately after surgery

  5. Total hospital treatment cost.

    Total in-hospital treatment cost per patient calculated from hospital billing records, including procedural and hospitalization costs. Unit of Measure-Cost in euros (€)

    Time frame: From enrollment to the end of treatment at 2 weeks

07

Study locations

1 site
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

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

Started May 2025 (actual). Primary completion is estimated for Oct 2027, 29 months after the start.

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 planned 29 months is above 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
Nov 29, 2025
First posted
Mar 31, 2026
StartActual
May 1, 2025
Primary completionEst.
Oct 1, 2027
CompletionEst.
Oct 1, 2028
Last update
Mar 31, 2026
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 Mar 31, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07503964
Lead sponsor
Riga East Clinical University Hospital
Collaborators
University of Latvia
Responsible party
Sponsor
First posted
Mar 31, 2026
Start date
May 1, 2025
Primary completion
Oct 1, 2027 (estimated)
Completion
Oct 1, 2028 (estimated)
Last update
Mar 31, 2026

Oversight

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

Not currently enrolling

This study is active, not recruiting, as verified in Mar 2026. You cannot join it, but the record below documents what was studied.

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