Comparing the Efficacy and Safety of Holmium Laser Lithotripsy Versus Electrohydraulic Lithotripsy for the Treatment of Difficult Choledocholithiasis and Pancreatic Duct Stones
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: Laser lithotripsy with low-wattage holmium laser, Electrohydraulic lithotripsy.
- Who it may be relevant to
- Registry conditions: Choledocholithiasis, Pancreatic Duct Stone. Basic parameters: 19 years — 85 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- United States
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Official title
Comparing the Efficacy and Safety of Holmium Laser Lithotripsy Versus Electrohydraulic Lithotripsy for the Treatment of Difficult Choledocholithiasis and Pancreatic Duct Stones: A Randomized Controlled Trial
Overview
The goal of this clinical trial is to learn if a low-power holmium laser works to treat large and/or difficult bile duct or pancreatic duct stones in adults. It will also learn about the safety of the low-wattage holmium laser. The main questions it aims to answer are: Is the low-power holmium laser effective at treating large and/or difficult bile duct or pancreatic duct stones? Is the low-power holmium laser effective safe to use in adults? How does the low-power holmium laser compare to electrohydraulic lithotripsy for the management of large and/or difficult bile duct or pancreatic duct stones. Participants will: Undergo ERCP procedure and their bile duct or pancreatic duct stone will either be broken up with the low-power holmium laser lithotripsy device or the electrohydraulic lithotripsy lithotripsy device. Answer a call 30 days after the procedure to document symptoms and/or any side effects.
Detailed description
This study aims to assess two main questions. 1: Whether low-wattage holmium:YAG laser lithotripsy (using the Quanta System Litho EVO device) is safe and effective in the management large and/or difficult bile duct or pancreatic duct stones. 2: Whether low-wattage holmium:YAG laser lithotripsy is non-inferior to electrohydraulic lithotripsy in the management of large and/or difficult gallstones.
Part one of the study will investigate whether utilizing the low-wattage holmium:YAG laser lithotripsy device via single-operator cholangioscopy (SOC-LL) is safe and effective to treat large and/or difficult choledocholithiasis or pancreaticolithiasis.
Part two of the study will be a non-inferiority study to determine if SOC-LL is non-inferior for stone clearance, among other secondary outcomes, compared to electrohydraulic lithotripsy via single-operator cholangioscopy (SOC-EHL).
Patients who meet the inclusion criteria will undergo ERCP procedures and will either undergo SOC-LL or SOC-EHL to treat their large and/or difficult choledocholithiasis or pancreaticolithiasis. Stone clearance and other procedural or safety measures will be assessed after the procedure. The patient will be monitored after the procedure for adverse events and the administration of medications or admission to the hospital will be determined by the proceduralist. Roughly 30 days after the procedure the patient will be called to assess for any adverse effects as well as to determine symptom resolution.
Interventions
- Device Laser lithotripsy with low-wattage holmium laser
Use of low-wattage holmium laser for lithotripsy of large and/or difficult bile duct stones or pancreatic duct stones during ERCP. - Device Electrohydraulic lithotripsy
Use of electrohydraulic lithotripsy for management of large and/or difficult bile duct or pancreatic duct stones.
Primary outcome measures
- Complete stone clearance [Time frame: Immediately after the procedure]
Secondary outcome measures (6)
- Overall complete stone clearance rate [Time frame: Immediately after the final procedure]
- Number of procedures [Time frame: Immediately after the final procedure]
- Total procedure time [Time frame: Immediately after the final procedure]
- Total lithotripsy time [Time frame: Immediately after the final procedure]
- Rate of rescue mechanical lithotripsy [Time frame: Immediately after the final procedure]
- Length of post-procedure hospital stay [Time frame: Immediately after the final procedure]
Eligibility criteria
Inclusion criteria
- Age 19-85 years
- Signed written informed consent.
- Presence of one or more biliary (common bile duct or intrahepatic) or pancreatic duct stones that are deemed "difficult" based on at least one of the following criteria:
- Stone diameter ≥ 15 mm in any single dimension as measured on prior cross-sectional imaging (CT, MRCP, or EUS).
- Presence of an impacted stone that cannot be dislodged with a standard balloon or basket.
- Stone located proximal to a benign biliary or pancreatic duct stricture.
- Documented failure of stone extraction during a prior ERCP attempt using standard techniques (e.g., sphincterotomy with balloon/basket extraction).
Exclusion criteria
- Pregnancy: Repeated ERCP would be delayed until after delivery if possible
- Clinically significant, uncorrectable coagulopathy (defined as INR > 1.5 or platelet count < 50,000/μL).
- Surgically altered upper gastrointestinal anatomy that precludes conventional ERCP access (e.g., Roux-en-Y gastric bypass), unless an alternative access route (e.g., laparoscopy-assisted or EUS-directed) is planned as the standard of care.
- Known or highly suspected malignant biliary or pancreatic stricture associated with the stone.
- Acute pancreatitis at the time of screening, unless it is gallstone pancreatitis with persistent biliary obstruction, for which ERCP is therapeutically indicated.
- Severe cardiopulmonary disease or other comorbidities that, in the judgment of the investigator, would make the patient an unsuitable candidate for a prolonged endoscopic procedure under general anesthesia.
- Known life expectancy of less than 6 months.
- Inability or unwillingness to comply with study procedures or follow-up requirements.
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Allocation
- Randomized
- Model
- Parallel assignment
- Masking
- Single blind
- Primary purpose
- Treatment
Study locations
United States · 1 center
- Rush University Medical Center — Chicago
Publications
- ASGE Standards of Practice Committee; Buxbaum JL, Abbas Fehmi SM, Sultan S, Fishman DS, Qumseya BJ, Cortessis VK, Schilperoort H, Kysh L, Matsuoka L, Yachimski P, Agrawal D, Gurudu SR, Jamil LH, Jue TL, Khashab MA, Law JK, Lee JK, Naveed M, Sawhney MS, Thosani N, Yang J, Wani SB. ASGE guideline on the role of endoscopy in the evaluation and management of choledocholithiasis. Gastrointest Endosc. 2 PMID 30979521
Identifiers
NCT: NCT07418112 · 24070901-IRB01