Clinical trial Recruiting at 1 site Phase 4 Interventional Ages 21 and up

Large-channel digital pancreaticobiliary scope with compatible accessories

Official title: Prospective Multicenter Clinical Performance Study of a Single-use Large Channel Digital Pancreaticobiliary Scope (DPS) With Compatible Accessories

Run by University of Colorado, Denver · NCT07120295 · Data updated 2026-11-12

This study will test whether the Dragonfly large-channel digital pancreaticobiliary scope and its accessories can fragment difficult bile duct stones and obtain tissue samples during ERCP in adults with biliary disorders.

Quick facts

PhasePhase 4
Study typeInterventional
Ages21 Years and up
SexAll
Enrollment75 (estimated)
SponsorUniversity of Colorado, Denver
Academic / other
Locations1 site (Aurora, Colorado)
StatusRecruiting
StartedAugust 11, 2025
Main results expectedDecember 2027
Study endsDecember 2028
Registry record updatedSeptember 3, 2026
Trial IDNCT07120295 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults aged 21 or older who are scheduled for ERCP and require cholangioscopy for an indeterminate biliary stricture or after failed biliary stone extraction, who can consent and comply with follow-up, are ideal candidates.

Probably not a fit

Patients who are pregnant or lactating, have altered GI anatomy that prevents duodenoscope access, have uncorrectable coagulopathy or thrombocytopenia, cannot safely stop certain anticoagulants, or have active suppurative cholangitis are unlikely to benefit or be eligible.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

Up to 75 adults scheduled for ERCP who need cholangioscopy for indeterminate biliary strictures or for failed biliary stone extraction will be enrolled. The Dragonfly Digital Pancreaticobiliary System will be used with commercially available accessories during the participant's planned procedure. Key outcomes include successful fragmentation of difficult biliary stones, adequacy of tissue specimens obtained, and product performance as rated by the operating endoscopist, along with ergonomics and usability assessments. Data will be collected during the procedure and at scheduled follow-up to capture device performance and any procedure-related complications.

Why it matters

Potential benefit: If successful, the device could make it easier to break difficult bile duct stones and obtain diagnostic tissue during ERCP, potentially reducing the need for additional procedures.

How similar studies have gone: Other digital cholangioscopy systems have shown utility for stone fragmentation and tissue acquisition, but this large-channel Dragonfly configuration is a newer device being tested for compatibility and performance.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Provision to sign and date the consent form;
2. Adult patients ≥ 21 years old;
3. Any patient who is required to undergo endoscopic retrograde cholangiopancreatography (ERCP) procedure with the clinical need to perform cholangioscopy for:

   1. Indeterminate biliary stricture, or
   2. Failed biliary stone extraction with conventional techniques.
4. Willing and able to follow study procedures and comply with study follow-up.

Exclusion Criteria:

1. Pregnancy or lactation;
2. Surgically or physiologically altered GI anatomy that precludes advancement of the duodenoscope for biliary cannulation;
3. Patients on anti-coagulants and anti-platelet medications that cannot be withheld pre-procedure, except for aspirin, 81mg;
4. Coagulopathy (INR \> 1.8) or thrombocytopenia (Platelets \< 50,000) that is not correctable and felt to be a contraindication to proceeding with biopsy or lithotripsy per the treating endoscopist;
5. Active suppurative cholangitis with evidence of purulent drainage at the time of papilla visualization;
6. Patients who are not candidates for anesthesia to permit ERCP.

Where it's running

  • Universtiy of Colorado Hospital
    Aurora, Colorado, United States
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.